annotate Modules/threadmodule.c @ 39496:352ffe77b71d legacy-trunk

Patch #1535500: fix segfault in BZ2File.writelines and make sure it raises the correct exceptions.
author Georg Brandl <georg@python.org>
date Mon, 14 Aug 2006 21:42:55 +0000
parents a714f2f13e25
children c58d1b969843
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1
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2 /* Thread module */
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3 /* Interface to Sjoerd's portable C thread library */
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4
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5 #include "Python.h"
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6
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7 #ifndef WITH_THREAD
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8 #error "Error! The rest of Python is not compiled with thread support."
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9 #error "Rerun configure, adding a --with-threads option."
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10 #error "Then run `make clean' followed by `make'."
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11 #endif
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12
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13 #include "pythread.h"
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14
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15 static PyObject *ThreadError;
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17
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18 /* Lock objects */
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19
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20 typedef struct {
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21 PyObject_HEAD
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22 PyThread_type_lock lock_lock;
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23 } lockobject;
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24
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25 static void
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26 lock_dealloc(lockobject *self)
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27 {
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28 /* Unlock the lock so it's safe to free it */
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29 PyThread_acquire_lock(self->lock_lock, 0);
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30 PyThread_release_lock(self->lock_lock);
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31
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32 PyThread_free_lock(self->lock_lock);
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33 PyObject_Del(self);
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34 }
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35
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36 static PyObject *
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37 lock_PyThread_acquire_lock(lockobject *self, PyObject *args)
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38 {
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39 int i = 1;
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40
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41 if (!PyArg_ParseTuple(args, "|i:acquire", &i))
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42 return NULL;
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43
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44 Py_BEGIN_ALLOW_THREADS
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45 i = PyThread_acquire_lock(self->lock_lock, i);
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46 Py_END_ALLOW_THREADS
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47
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48 return PyBool_FromLong((long)i);
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49 }
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50
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51 PyDoc_STRVAR(acquire_doc,
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52 "acquire([wait]) -> None or bool\n\
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53 (acquire_lock() is an obsolete synonym)\n\
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54 \n\
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55 Lock the lock. Without argument, this blocks if the lock is already\n\
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56 locked (even by the same thread), waiting for another thread to release\n\
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57 the lock, and return None once the lock is acquired.\n\
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58 With an argument, this will only block if the argument is true,\n\
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59 and the return value reflects whether the lock is acquired.\n\
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60 The blocking operation is not interruptible.");
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61
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62 static PyObject *
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63 lock_PyThread_release_lock(lockobject *self)
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64 {
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65 /* Sanity check: the lock must be locked */
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66 if (PyThread_acquire_lock(self->lock_lock, 0)) {
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67 PyThread_release_lock(self->lock_lock);
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68 PyErr_SetString(ThreadError, "release unlocked lock");
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69 return NULL;
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70 }
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71
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72 PyThread_release_lock(self->lock_lock);
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73 Py_INCREF(Py_None);
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74 return Py_None;
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75 }
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76
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77 PyDoc_STRVAR(release_doc,
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78 "release()\n\
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79 (release_lock() is an obsolete synonym)\n\
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80 \n\
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81 Release the lock, allowing another thread that is blocked waiting for\n\
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82 the lock to acquire the lock. The lock must be in the locked state,\n\
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83 but it needn't be locked by the same thread that unlocks it.");
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84
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85 static PyObject *
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86 lock_locked_lock(lockobject *self)
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87 {
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88 if (PyThread_acquire_lock(self->lock_lock, 0)) {
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89 PyThread_release_lock(self->lock_lock);
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90 return PyBool_FromLong(0L);
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91 }
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92 return PyBool_FromLong(1L);
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93 }
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94
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95 PyDoc_STRVAR(locked_doc,
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96 "locked() -> bool\n\
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97 (locked_lock() is an obsolete synonym)\n\
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98 \n\
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99 Return whether the lock is in the locked state.");
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100
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101 static PyMethodDef lock_methods[] = {
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102 {"acquire_lock", (PyCFunction)lock_PyThread_acquire_lock,
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103 METH_VARARGS, acquire_doc},
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104 {"acquire", (PyCFunction)lock_PyThread_acquire_lock,
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105 METH_VARARGS, acquire_doc},
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106 {"release_lock", (PyCFunction)lock_PyThread_release_lock,
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107 METH_NOARGS, release_doc},
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108 {"release", (PyCFunction)lock_PyThread_release_lock,
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109 METH_NOARGS, release_doc},
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110 {"locked_lock", (PyCFunction)lock_locked_lock,
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111 METH_NOARGS, locked_doc},
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112 {"locked", (PyCFunction)lock_locked_lock,
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113 METH_NOARGS, locked_doc},
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114 {"__enter__", (PyCFunction)lock_PyThread_acquire_lock,
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115 METH_VARARGS, acquire_doc},
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116 {"__exit__", (PyCFunction)lock_PyThread_release_lock,
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117 METH_VARARGS, release_doc},
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118 {NULL, NULL} /* sentinel */
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119 };
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120
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121 static PyObject *
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122 lock_getattr(lockobject *self, char *name)
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123 {
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124 return Py_FindMethod(lock_methods, (PyObject *)self, name);
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125 }
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126
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127 static PyTypeObject Locktype = {
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128 PyObject_HEAD_INIT(&PyType_Type)
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129 0, /*ob_size*/
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130 "thread.lock", /*tp_name*/
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131 sizeof(lockobject), /*tp_size*/
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132 0, /*tp_itemsize*/
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133 /* methods */
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134 (destructor)lock_dealloc, /*tp_dealloc*/
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135 0, /*tp_print*/
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136 (getattrfunc)lock_getattr, /*tp_getattr*/
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137 0, /*tp_setattr*/
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Guido van Rossum <guido@python.org>
parents: 1418
diff changeset
138 0, /*tp_compare*/
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parents: 1418
diff changeset
139 0, /*tp_repr*/
923
72aceed365d4 * Makefile adapted to changes below.
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parents:
diff changeset
140 };
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parents:
diff changeset
141
37616
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142 static lockobject *
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143 newlockobject(void)
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144 {
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145 lockobject *self;
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146 self = PyObject_New(lockobject, &Locktype);
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147 if (self == NULL)
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148 return NULL;
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149 self->lock_lock = PyThread_allocate_lock();
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150 if (self->lock_lock == NULL) {
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151 PyObject_Del(self);
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152 self = NULL;
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153 PyErr_SetString(ThreadError, "can't allocate lock");
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154 }
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155 return self;
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parents: 37305
diff changeset
156 }
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157
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158 /* Thread-local objects */
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159
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diff changeset
160 #include "structmember.h"
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161
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162 typedef struct {
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163 PyObject_HEAD
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164 PyObject *key;
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165 PyObject *args;
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166 PyObject *kw;
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167 PyObject *dict;
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168 } localobject;
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169
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170 static PyObject *
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171 local_new(PyTypeObject *type, PyObject *args, PyObject *kw)
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172 {
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173 localobject *self;
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174 PyObject *tdict;
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175
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176 if (type->tp_init == PyBaseObject_Type.tp_init
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177 && ((args && PyObject_IsTrue(args))
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178 || (kw && PyObject_IsTrue(kw)))) {
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179 PyErr_SetString(PyExc_TypeError,
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180 "Initialization arguments are not supported");
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181 return NULL;
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parents: 35085
diff changeset
182 }
32673
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diff changeset
183
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184 self = (localobject *)type->tp_alloc(type, 0);
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diff changeset
185 if (self == NULL)
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186 return NULL;
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diff changeset
187
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188 Py_XINCREF(args);
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diff changeset
189 self->args = args;
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diff changeset
190 Py_XINCREF(kw);
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Michael W. Hudson <mwh@python.net>
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diff changeset
191 self->kw = kw;
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192 self->dict = NULL; /* making sure */
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193 self->key = PyString_FromFormat("thread.local.%p", self);
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diff changeset
194 if (self->key == NULL)
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195 goto err;
32673
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Jim Fulton <jim@zope.com>
parents: 31797
diff changeset
196
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197 self->dict = PyDict_New();
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diff changeset
198 if (self->dict == NULL)
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parents: 35085
diff changeset
199 goto err;
32673
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Jim Fulton <jim@zope.com>
parents: 31797
diff changeset
200
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diff changeset
201 tdict = PyThreadState_GetDict();
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diff changeset
202 if (tdict == NULL) {
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Michael W. Hudson <mwh@python.net>
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diff changeset
203 PyErr_SetString(PyExc_SystemError,
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diff changeset
204 "Couldn't get thread-state dictionary");
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Michael W. Hudson <mwh@python.net>
parents: 35085
diff changeset
205 goto err;
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parents: 35085
diff changeset
206 }
32673
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diff changeset
207
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208 if (PyDict_SetItem(tdict, self->key, self->dict) < 0)
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diff changeset
209 goto err;
32673
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Jim Fulton <jim@zope.com>
parents: 31797
diff changeset
210
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211 return (PyObject *)self;
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diff changeset
212
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diff changeset
213 err:
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diff changeset
214 Py_DECREF(self);
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diff changeset
215 return NULL;
32673
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Jim Fulton <jim@zope.com>
parents: 31797
diff changeset
216 }
97768d87394a Implemented thread-local data as proposed on python-dev:
Jim Fulton <jim@zope.com>
parents: 31797
diff changeset
217
97768d87394a Implemented thread-local data as proposed on python-dev:
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parents: 31797
diff changeset
218 static int
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diff changeset
219 local_traverse(localobject *self, visitproc visit, void *arg)
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parents: 31797
diff changeset
220 {
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diff changeset
221 Py_VISIT(self->args);
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diff changeset
222 Py_VISIT(self->kw);
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diff changeset
223 Py_VISIT(self->dict);
32673
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Jim Fulton <jim@zope.com>
parents: 31797
diff changeset
224 return 0;
97768d87394a Implemented thread-local data as proposed on python-dev:
Jim Fulton <jim@zope.com>
parents: 31797
diff changeset
225 }
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Jim Fulton <jim@zope.com>
parents: 31797
diff changeset
226
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parents: 31797
diff changeset
227 static int
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diff changeset
228 local_clear(localobject *self)
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parents: 31797
diff changeset
229 {
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230 Py_CLEAR(self->key);
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diff changeset
231 Py_CLEAR(self->args);
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Michael W. Hudson <mwh@python.net>
parents: 35085
diff changeset
232 Py_CLEAR(self->kw);
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Michael W. Hudson <mwh@python.net>
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diff changeset
233 Py_CLEAR(self->dict);
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Michael W. Hudson <mwh@python.net>
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diff changeset
234 return 0;
32673
97768d87394a Implemented thread-local data as proposed on python-dev:
Jim Fulton <jim@zope.com>
parents: 31797
diff changeset
235 }
97768d87394a Implemented thread-local data as proposed on python-dev:
Jim Fulton <jim@zope.com>
parents: 31797
diff changeset
236
97768d87394a Implemented thread-local data as proposed on python-dev:
Jim Fulton <jim@zope.com>
parents: 31797
diff changeset
237 static void
97768d87394a Implemented thread-local data as proposed on python-dev:
Jim Fulton <jim@zope.com>
parents: 31797
diff changeset
238 local_dealloc(localobject *self)
97768d87394a Implemented thread-local data as proposed on python-dev:
Jim Fulton <jim@zope.com>
parents: 31797
diff changeset
239 {
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diff changeset
240 PyThreadState *tstate;
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parents: 35085
diff changeset
241 if (self->key
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parents: 35085
diff changeset
242 && (tstate = PyThreadState_Get())
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Michael W. Hudson <mwh@python.net>
parents: 35085
diff changeset
243 && tstate->interp) {
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parents: 35085
diff changeset
244 for(tstate = PyInterpreterState_ThreadHead(tstate->interp);
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parents: 35085
diff changeset
245 tstate;
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parents: 35085
diff changeset
246 tstate = PyThreadState_Next(tstate))
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parents: 35085
diff changeset
247 if (tstate->dict &&
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diff changeset
248 PyDict_GetItem(tstate->dict, self->key))
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diff changeset
249 PyDict_DelItem(tstate->dict, self->key);
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Michael W. Hudson <mwh@python.net>
parents: 35085
diff changeset
250 }
32673
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parents: 31797
diff changeset
251
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252 local_clear(self);
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diff changeset
253 self->ob_type->tp_free((PyObject*)self);
32673
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parents: 31797
diff changeset
254 }
97768d87394a Implemented thread-local data as proposed on python-dev:
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parents: 31797
diff changeset
255
97768d87394a Implemented thread-local data as proposed on python-dev:
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parents: 31797
diff changeset
256 static PyObject *
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parents: 31797
diff changeset
257 _ldict(localobject *self)
97768d87394a Implemented thread-local data as proposed on python-dev:
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parents: 31797
diff changeset
258 {
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parents: 31797
diff changeset
259 PyObject *tdict, *ldict;
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parents: 31797
diff changeset
260
97768d87394a Implemented thread-local data as proposed on python-dev:
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parents: 31797
diff changeset
261 tdict = PyThreadState_GetDict();
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diff changeset
262 if (tdict == NULL) {
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parents: 35085
diff changeset
263 PyErr_SetString(PyExc_SystemError,
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Michael W. Hudson <mwh@python.net>
parents: 35085
diff changeset
264 "Couldn't get thread-state dictionary");
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diff changeset
265 return NULL;
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parents: 35085
diff changeset
266 }
32673
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parents: 31797
diff changeset
267
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diff changeset
268 ldict = PyDict_GetItem(tdict, self->key);
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diff changeset
269 if (ldict == NULL) {
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diff changeset
270 ldict = PyDict_New(); /* we own ldict */
32673
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diff changeset
271
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diff changeset
272 if (ldict == NULL)
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parents: 35085
diff changeset
273 return NULL;
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parents: 35085
diff changeset
274 else {
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diff changeset
275 int i = PyDict_SetItem(tdict, self->key, ldict);
36895
Georg Brandl <georg@python.org>
parents: 36737
diff changeset
276 Py_DECREF(ldict); /* now ldict is borrowed */
35086
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diff changeset
277 if (i < 0)
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parents: 35085
diff changeset
278 return NULL;
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parents: 35085
diff changeset
279 }
32673
97768d87394a Implemented thread-local data as proposed on python-dev:
Jim Fulton <jim@zope.com>
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280
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281 Py_CLEAR(self->dict);
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282 Py_INCREF(ldict);
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283 self->dict = ldict; /* still borrowed */
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284
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285 if (self->ob_type->tp_init != PyBaseObject_Type.tp_init &&
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286 self->ob_type->tp_init((PyObject*)self,
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287 self->args, self->kw) < 0) {
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288 /* we need to get rid of ldict from thread so
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289 we create a new one the next time we do an attr
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290 acces */
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291 PyDict_DelItem(tdict, self->key);
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292 return NULL;
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293 }
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294
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295 }
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296 else if (self->dict != ldict) {
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297 Py_CLEAR(self->dict);
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298 Py_INCREF(ldict);
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299 self->dict = ldict;
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300 }
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301
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302 return ldict;
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303 }
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304
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305 static int
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306 local_setattro(localobject *self, PyObject *name, PyObject *v)
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307 {
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308 PyObject *ldict;
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309
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310 ldict = _ldict(self);
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311 if (ldict == NULL)
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312 return -1;
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313
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314 return PyObject_GenericSetAttr((PyObject *)self, name, v);
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315 }
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316
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317 static PyObject *
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318 local_getdict(localobject *self, void *closure)
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319 {
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320 if (self->dict == NULL) {
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321 PyErr_SetString(PyExc_AttributeError, "__dict__");
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322 return NULL;
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323 }
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324
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325 Py_INCREF(self->dict);
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326 return self->dict;
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327 }
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328
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329 static PyGetSetDef local_getset[] = {
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330 {"__dict__", (getter)local_getdict, (setter)NULL,
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331 "Local-data dictionary", NULL},
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332 {NULL} /* Sentinel */
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333 };
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334
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335 static PyObject *local_getattro(localobject *, PyObject *);
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336
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337 static PyTypeObject localtype = {
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338 PyObject_HEAD_INIT(NULL)
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339 /* ob_size */ 0,
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340 /* tp_name */ "thread._local",
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341 /* tp_basicsize */ sizeof(localobject),
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342 /* tp_itemsize */ 0,
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343 /* tp_dealloc */ (destructor)local_dealloc,
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344 /* tp_print */ 0,
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345 /* tp_getattr */ 0,
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346 /* tp_setattr */ 0,
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347 /* tp_compare */ 0,
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348 /* tp_repr */ 0,
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349 /* tp_as_number */ 0,
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350 /* tp_as_sequence */ 0,
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351 /* tp_as_mapping */ 0,
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352 /* tp_hash */ 0,
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353 /* tp_call */ 0,
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354 /* tp_str */ 0,
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355 /* tp_getattro */ (getattrofunc)local_getattro,
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356 /* tp_setattro */ (setattrofunc)local_setattro,
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357 /* tp_as_buffer */ 0,
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358 /* tp_flags */ Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,
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359 /* tp_doc */ "Thread-local data",
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360 /* tp_traverse */ (traverseproc)local_traverse,
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361 /* tp_clear */ (inquiry)local_clear,
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362 /* tp_richcompare */ 0,
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363 /* tp_weaklistoffset */ 0,
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364 /* tp_iter */ 0,
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365 /* tp_iternext */ 0,
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366 /* tp_methods */ 0,
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367 /* tp_members */ 0,
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368 /* tp_getset */ local_getset,
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369 /* tp_base */ 0,
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370 /* tp_dict */ 0, /* internal use */
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371 /* tp_descr_get */ 0,
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372 /* tp_descr_set */ 0,
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373 /* tp_dictoffset */ offsetof(localobject, dict),
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374 /* tp_init */ 0,
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375 /* tp_alloc */ 0,
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376 /* tp_new */ local_new,
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377 /* tp_free */ 0, /* Low-level free-mem routine */
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378 /* tp_is_gc */ 0, /* For PyObject_IS_GC */
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379 };
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380
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381 static PyObject *
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382 local_getattro(localobject *self, PyObject *name)
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383 {
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384 PyObject *ldict, *value;
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385
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386 ldict = _ldict(self);
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387 if (ldict == NULL)
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388 return NULL;
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389
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390 if (self->ob_type != &localtype)
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391 /* use generic lookup for subtypes */
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392 return PyObject_GenericGetAttr((PyObject *)self, name);
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393
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394 /* Optimization: just look in dict ourselves */
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395 value = PyDict_GetItem(ldict, name);
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396 if (value == NULL)
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397 /* Fall back on generic to get __class__ and __dict__ */
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398 return PyObject_GenericGetAttr((PyObject *)self, name);
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399
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400 Py_INCREF(value);
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401 return value;
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402 }
923
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403
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404 /* Module functions */
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405
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406 struct bootstate {
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407 PyInterpreterState *interp;
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408 PyObject *func;
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409 PyObject *args;
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410 PyObject *keyw;
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411 };
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412
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413 static void
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414 t_bootstrap(void *boot_raw)
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415 {
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416 struct bootstate *boot = (struct bootstate *) boot_raw;
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417 PyThreadState *tstate;
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418 PyObject *res;
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419
35117
7ea2be2c0e1d Fix bug:
Michael W. Hudson <mwh@python.net>
parents: 35086
diff changeset
420 tstate = PyThreadState_New(boot->interp);
7ea2be2c0e1d Fix bug:
Michael W. Hudson <mwh@python.net>
parents: 35086
diff changeset
421
7ea2be2c0e1d Fix bug:
Michael W. Hudson <mwh@python.net>
parents: 35086
diff changeset
422 PyEval_AcquireThread(tstate);
5405
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
423 res = PyEval_CallObjectWithKeywords(
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
424 boot->func, boot->args, boot->keyw);
923
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
425 if (res == NULL) {
8433
7cdff8aa8318 t_bootstrap(): Use PyErr_ExceptionMatches(...) instead of PyErr_Occurred(...).
Fred Drake <fdrake@acm.org>
parents: 7211
diff changeset
426 if (PyErr_ExceptionMatches(PyExc_SystemExit))
4751
7ab835f87f86 Renamed.
Barry Warsaw <barry@python.org>
parents: 4600
diff changeset
427 PyErr_Clear();
2568
2c61786327cf implement exit_thread through SystemExit exception
Guido van Rossum <guido@python.org>
parents: 2123
diff changeset
428 else {
28889
96b6cc5d408b When an unhandled exception happens, report the repr() of the function
Guido van Rossum <guido@python.org>
parents: 25127
diff changeset
429 PyObject *file;
96b6cc5d408b When an unhandled exception happens, report the repr() of the function
Guido van Rossum <guido@python.org>
parents: 25127
diff changeset
430 PySys_WriteStderr(
96b6cc5d408b When an unhandled exception happens, report the repr() of the function
Guido van Rossum <guido@python.org>
parents: 25127
diff changeset
431 "Unhandled exception in thread started by ");
96b6cc5d408b When an unhandled exception happens, report the repr() of the function
Guido van Rossum <guido@python.org>
parents: 25127
diff changeset
432 file = PySys_GetObject("stderr");
96b6cc5d408b When an unhandled exception happens, report the repr() of the function
Guido van Rossum <guido@python.org>
parents: 25127
diff changeset
433 if (file)
96b6cc5d408b When an unhandled exception happens, report the repr() of the function
Guido van Rossum <guido@python.org>
parents: 25127
diff changeset
434 PyFile_WriteObject(boot->func, file, 0);
96b6cc5d408b When an unhandled exception happens, report the repr() of the function
Guido van Rossum <guido@python.org>
parents: 25127
diff changeset
435 else
96b6cc5d408b When an unhandled exception happens, report the repr() of the function
Guido van Rossum <guido@python.org>
parents: 25127
diff changeset
436 PyObject_Print(boot->func, stderr, 0);
96b6cc5d408b When an unhandled exception happens, report the repr() of the function
Guido van Rossum <guido@python.org>
parents: 25127
diff changeset
437 PySys_WriteStderr("\n");
7211
c764217ae6eb Don't store the exception info from an unhandled exception in a thread
Guido van Rossum <guido@python.org>
parents: 6367
diff changeset
438 PyErr_PrintEx(0);
2568
2c61786327cf implement exit_thread through SystemExit exception
Guido van Rossum <guido@python.org>
parents: 2123
diff changeset
439 }
923
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
440 }
2055
cf31eab6ab5a Another bulky set of minor changes.
Guido van Rossum <guido@python.org>
parents: 1746
diff changeset
441 else
4751
7ab835f87f86 Renamed.
Barry Warsaw <barry@python.org>
parents: 4600
diff changeset
442 Py_DECREF(res);
28889
96b6cc5d408b When an unhandled exception happens, report the repr() of the function
Guido van Rossum <guido@python.org>
parents: 25127
diff changeset
443 Py_DECREF(boot->func);
96b6cc5d408b When an unhandled exception happens, report the repr() of the function
Guido van Rossum <guido@python.org>
parents: 25127
diff changeset
444 Py_DECREF(boot->args);
96b6cc5d408b When an unhandled exception happens, report the repr() of the function
Guido van Rossum <guido@python.org>
parents: 25127
diff changeset
445 Py_XDECREF(boot->keyw);
96b6cc5d408b When an unhandled exception happens, report the repr() of the function
Guido van Rossum <guido@python.org>
parents: 25127
diff changeset
446 PyMem_DEL(boot_raw);
35117
7ea2be2c0e1d Fix bug:
Michael W. Hudson <mwh@python.net>
parents: 35086
diff changeset
447 PyThreadState_Clear(tstate);
7ea2be2c0e1d Fix bug:
Michael W. Hudson <mwh@python.net>
parents: 35086
diff changeset
448 PyThreadState_DeleteCurrent();
8823
f2a4a2b60860 Changes for BeOS, QNX and long long, by Chris Herborth.
Guido van Rossum <guido@python.org>
parents: 8567
diff changeset
449 PyThread_exit_thread();
923
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
450 }
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
451
4751
7ab835f87f86 Renamed.
Barry Warsaw <barry@python.org>
parents: 4600
diff changeset
452 static PyObject *
13497
95454b73ea91 ANSI-fication
Peter Schneider-Kamp <nowonder@nowonder.de>
parents: 13256
diff changeset
453 thread_PyThread_start_new_thread(PyObject *self, PyObject *fargs)
923
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
454 {
14363
5da406ebef55 The second argument to start_new_thread() is not a tuple, as pointed
Guido van Rossum <guido@python.org>
parents: 13820
diff changeset
455 PyObject *func, *args, *keyw = NULL;
5405
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
456 struct bootstate *boot;
20468
ebfd87e87884 Partial patch from SF #452266, by Jason Petrone.
Guido van Rossum <guido@python.org>
parents: 20266
diff changeset
457 long ident;
923
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
458
38489
3fe3ccdf0155 Make use of METH_O and METH_NOARGS where possible.
Georg Brandl <georg@python.org>
parents: 38084
diff changeset
459 if (!PyArg_UnpackTuple(fargs, "start_new_thread", 2, 3,
3fe3ccdf0155 Make use of METH_O and METH_NOARGS where possible.
Georg Brandl <georg@python.org>
parents: 38084
diff changeset
460 &func, &args, &keyw))
923
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
461 return NULL;
5405
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
462 if (!PyCallable_Check(func)) {
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
463 PyErr_SetString(PyExc_TypeError,
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
464 "first arg must be callable");
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
465 return NULL;
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
466 }
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
467 if (!PyTuple_Check(args)) {
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
468 PyErr_SetString(PyExc_TypeError,
14363
5da406ebef55 The second argument to start_new_thread() is not a tuple, as pointed
Guido van Rossum <guido@python.org>
parents: 13820
diff changeset
469 "2nd arg must be a tuple");
923
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
470 return NULL;
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
471 }
5405
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
472 if (keyw != NULL && !PyDict_Check(keyw)) {
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
473 PyErr_SetString(PyExc_TypeError,
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
474 "optional 3rd arg must be a dictionary");
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
475 return NULL;
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
476 }
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
477 boot = PyMem_NEW(struct bootstate, 1);
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
478 if (boot == NULL)
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
479 return PyErr_NoMemory();
31797
846b3ee7e106 Changed random calls to PyThreadState_Get() to use the macro
Nicholas Bastin <nick.bastin@gmail.com>
parents: 29498
diff changeset
480 boot->interp = PyThreadState_GET()->interp;
5405
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
481 boot->func = func;
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
482 boot->args = args;
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
483 boot->keyw = keyw;
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
484 Py_INCREF(func);
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
485 Py_INCREF(args);
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
486 Py_XINCREF(keyw);
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
487 PyEval_InitThreads(); /* Start the interpreter's thread-awareness */
20468
ebfd87e87884 Partial patch from SF #452266, by Jason Petrone.
Guido van Rossum <guido@python.org>
parents: 20266
diff changeset
488 ident = PyThread_start_new_thread(t_bootstrap, (void*) boot);
ebfd87e87884 Partial patch from SF #452266, by Jason Petrone.
Guido van Rossum <guido@python.org>
parents: 20266
diff changeset
489 if (ident == -1) {
34619
0dd146fed9dd The error message "can't start new thread" should not end in a
Guido van Rossum <guido@python.org>
parents: 33254
diff changeset
490 PyErr_SetString(ThreadError, "can't start new thread");
5405
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
491 Py_DECREF(func);
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
492 Py_DECREF(args);
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
493 Py_XDECREF(keyw);
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
494 PyMem_DEL(boot);
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
495 return NULL;
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
496 }
20468
ebfd87e87884 Partial patch from SF #452266, by Jason Petrone.
Guido van Rossum <guido@python.org>
parents: 20266
diff changeset
497 return PyInt_FromLong(ident);
923
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
498 }
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
499
23832
ed1ba37a46b7 Patch #568124: Add doc string macros.
Martin v. Löwis <martin@v.loewis.de>
parents: 22865
diff changeset
500 PyDoc_STRVAR(start_new_doc,
20266
241ef8a923c7 Fix typo in docstring
Andrew M. Kuchling <amk@amk.ca>
parents: 16140
diff changeset
501 "start_new_thread(function, args[, kwargs])\n\
8562
ff9adb57b8b5 Added doc strings. Also export LockType from the modoule, and give it
Guido van Rossum <guido@python.org>
parents: 8433
diff changeset
502 (start_new() is an obsolete synonym)\n\
ff9adb57b8b5 Added doc strings. Also export LockType from the modoule, and give it
Guido van Rossum <guido@python.org>
parents: 8433
diff changeset
503 \n\
20468
ebfd87e87884 Partial patch from SF #452266, by Jason Petrone.
Guido van Rossum <guido@python.org>
parents: 20266
diff changeset
504 Start a new thread and return its identifier. The thread will call the\n\
ebfd87e87884 Partial patch from SF #452266, by Jason Petrone.
Guido van Rossum <guido@python.org>
parents: 20266
diff changeset
505 function with positional arguments from the tuple args and keyword arguments\n\
ebfd87e87884 Partial patch from SF #452266, by Jason Petrone.
Guido van Rossum <guido@python.org>
parents: 20266
diff changeset
506 taken from the optional dictionary kwargs. The thread exits when the\n\
ebfd87e87884 Partial patch from SF #452266, by Jason Petrone.
Guido van Rossum <guido@python.org>
parents: 20266
diff changeset
507 function returns; the return value is ignored. The thread will also exit\n\
ebfd87e87884 Partial patch from SF #452266, by Jason Petrone.
Guido van Rossum <guido@python.org>
parents: 20266
diff changeset
508 when the function raises an unhandled exception; a stack trace will be\n\
23832
ed1ba37a46b7 Patch #568124: Add doc string macros.
Martin v. Löwis <martin@v.loewis.de>
parents: 22865
diff changeset
509 printed unless the exception is SystemExit.\n");
8562
ff9adb57b8b5 Added doc strings. Also export LockType from the modoule, and give it
Guido van Rossum <guido@python.org>
parents: 8433
diff changeset
510
4751
7ab835f87f86 Renamed.
Barry Warsaw <barry@python.org>
parents: 4600
diff changeset
511 static PyObject *
22561
043ad7adc896 Remove many uses of PyArg_NoArgs macro, change METH_OLDARGS to METH_NOARGS.
Neal Norwitz <nnorwitz@gmail.com>
parents: 21313
diff changeset
512 thread_PyThread_exit_thread(PyObject *self)
923
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
513 {
4751
7ab835f87f86 Renamed.
Barry Warsaw <barry@python.org>
parents: 4600
diff changeset
514 PyErr_SetNone(PyExc_SystemExit);
2568
2c61786327cf implement exit_thread through SystemExit exception
Guido van Rossum <guido@python.org>
parents: 2123
diff changeset
515 return NULL;
923
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
516 }
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
517
23832
ed1ba37a46b7 Patch #568124: Add doc string macros.
Martin v. Löwis <martin@v.loewis.de>
parents: 22865
diff changeset
518 PyDoc_STRVAR(exit_doc,
8562
ff9adb57b8b5 Added doc strings. Also export LockType from the modoule, and give it
Guido van Rossum <guido@python.org>
parents: 8433
diff changeset
519 "exit()\n\
9679
877d23bd5bdc Thanks to Chris Herborth, the thread primitives now have proper Py*
Guido van Rossum <guido@python.org>
parents: 9588
diff changeset
520 (PyThread_exit_thread() is an obsolete synonym)\n\
8562
ff9adb57b8b5 Added doc strings. Also export LockType from the modoule, and give it
Guido van Rossum <guido@python.org>
parents: 8433
diff changeset
521 \n\
ff9adb57b8b5 Added doc strings. Also export LockType from the modoule, and give it
Guido van Rossum <guido@python.org>
parents: 8433
diff changeset
522 This is synonymous to ``raise SystemExit''. It will cause the current\n\
23832
ed1ba37a46b7 Patch #568124: Add doc string macros.
Martin v. Löwis <martin@v.loewis.de>
parents: 22865
diff changeset
523 thread to exit silently unless the exception is caught.");
8562
ff9adb57b8b5 Added doc strings. Also export LockType from the modoule, and give it
Guido van Rossum <guido@python.org>
parents: 8433
diff changeset
524
29444
8d160095eb66 Add interrupt_main() to thread module.
Kurt B. Kaiser <kbk@shore.net>
parents: 28889
diff changeset
525 static PyObject *
29498
1402f265e48f Correct function name.
Kurt B. Kaiser <kbk@shore.net>
parents: 29444
diff changeset
526 thread_PyThread_interrupt_main(PyObject * self)
29444
8d160095eb66 Add interrupt_main() to thread module.
Kurt B. Kaiser <kbk@shore.net>
parents: 28889
diff changeset
527 {
8d160095eb66 Add interrupt_main() to thread module.
Kurt B. Kaiser <kbk@shore.net>
parents: 28889
diff changeset
528 PyErr_SetInterrupt();
8d160095eb66 Add interrupt_main() to thread module.
Kurt B. Kaiser <kbk@shore.net>
parents: 28889
diff changeset
529 Py_INCREF(Py_None);
8d160095eb66 Add interrupt_main() to thread module.
Kurt B. Kaiser <kbk@shore.net>
parents: 28889
diff changeset
530 return Py_None;
8d160095eb66 Add interrupt_main() to thread module.
Kurt B. Kaiser <kbk@shore.net>
parents: 28889
diff changeset
531 }
8d160095eb66 Add interrupt_main() to thread module.
Kurt B. Kaiser <kbk@shore.net>
parents: 28889
diff changeset
532
8d160095eb66 Add interrupt_main() to thread module.
Kurt B. Kaiser <kbk@shore.net>
parents: 28889
diff changeset
533 PyDoc_STRVAR(interrupt_doc,
8d160095eb66 Add interrupt_main() to thread module.
Kurt B. Kaiser <kbk@shore.net>
parents: 28889
diff changeset
534 "interrupt_main()\n\
8d160095eb66 Add interrupt_main() to thread module.
Kurt B. Kaiser <kbk@shore.net>
parents: 28889
diff changeset
535 \n\
8d160095eb66 Add interrupt_main() to thread module.
Kurt B. Kaiser <kbk@shore.net>
parents: 28889
diff changeset
536 Raise a KeyboardInterrupt in the main thread.\n\
29498
1402f265e48f Correct function name.
Kurt B. Kaiser <kbk@shore.net>
parents: 29444
diff changeset
537 A subthread can use this function to interrupt the main thread."
29444
8d160095eb66 Add interrupt_main() to thread module.
Kurt B. Kaiser <kbk@shore.net>
parents: 28889
diff changeset
538 );
8d160095eb66 Add interrupt_main() to thread module.
Kurt B. Kaiser <kbk@shore.net>
parents: 28889
diff changeset
539
1746
1940892d2fe3 Merge alpha100 branch back to main trunk
Guido van Rossum <guido@python.org>
parents: 1418
diff changeset
540 #ifndef NO_EXIT_PROG
4751
7ab835f87f86 Renamed.
Barry Warsaw <barry@python.org>
parents: 4600
diff changeset
541 static PyObject *
13497
95454b73ea91 ANSI-fication
Peter Schneider-Kamp <nowonder@nowonder.de>
parents: 13256
diff changeset
542 thread_PyThread_exit_prog(PyObject *self, PyObject *args)
923
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
543 {
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
544 int sts;
22709
3aa4bf7ac31e Remove METH_OLDARGS:
Neal Norwitz <nnorwitz@gmail.com>
parents: 22584
diff changeset
545 if (!PyArg_ParseTuple(args, "i:exit_prog", &sts))
923
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
546 return NULL;
9679
877d23bd5bdc Thanks to Chris Herborth, the thread primitives now have proper Py*
Guido van Rossum <guido@python.org>
parents: 9588
diff changeset
547 Py_Exit(sts); /* Calls PyThread_exit_prog(sts) or _PyThread_exit_prog(sts) */
923
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
548 for (;;) { } /* Should not be reached */
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
549 }
1746
1940892d2fe3 Merge alpha100 branch back to main trunk
Guido van Rossum <guido@python.org>
parents: 1418
diff changeset
550 #endif
923
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
551
37616
1e9d7e66c1bc remove forward declarations, move constructor functions. makes code C++ safe.
Anthony Baxter <anthonybaxter@gmail.com>
parents: 37305
diff changeset
552 static lockobject *newlockobject(void);
1e9d7e66c1bc remove forward declarations, move constructor functions. makes code C++ safe.
Anthony Baxter <anthonybaxter@gmail.com>
parents: 37305
diff changeset
553
4751
7ab835f87f86 Renamed.
Barry Warsaw <barry@python.org>
parents: 4600
diff changeset
554 static PyObject *
22561
043ad7adc896 Remove many uses of PyArg_NoArgs macro, change METH_OLDARGS to METH_NOARGS.
Neal Norwitz <nnorwitz@gmail.com>
parents: 21313
diff changeset
555 thread_PyThread_allocate_lock(PyObject *self)
923
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
556 {
4751
7ab835f87f86 Renamed.
Barry Warsaw <barry@python.org>
parents: 4600
diff changeset
557 return (PyObject *) newlockobject();
923
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
558 }
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
559
23832
ed1ba37a46b7 Patch #568124: Add doc string macros.
Martin v. Löwis <martin@v.loewis.de>
parents: 22865
diff changeset
560 PyDoc_STRVAR(allocate_doc,
8562
ff9adb57b8b5 Added doc strings. Also export LockType from the modoule, and give it
Guido van Rossum <guido@python.org>
parents: 8433
diff changeset
561 "allocate_lock() -> lock object\n\
ff9adb57b8b5 Added doc strings. Also export LockType from the modoule, and give it
Guido van Rossum <guido@python.org>
parents: 8433
diff changeset
562 (allocate() is an obsolete synonym)\n\
ff9adb57b8b5 Added doc strings. Also export LockType from the modoule, and give it
Guido van Rossum <guido@python.org>
parents: 8433
diff changeset
563 \n\
23832
ed1ba37a46b7 Patch #568124: Add doc string macros.
Martin v. Löwis <martin@v.loewis.de>
parents: 22865
diff changeset
564 Create a new lock object. See LockType.__doc__ for information about locks.");
8562
ff9adb57b8b5 Added doc strings. Also export LockType from the modoule, and give it
Guido van Rossum <guido@python.org>
parents: 8433
diff changeset
565
4751
7ab835f87f86 Renamed.
Barry Warsaw <barry@python.org>
parents: 4600
diff changeset
566 static PyObject *
22561
043ad7adc896 Remove many uses of PyArg_NoArgs macro, change METH_OLDARGS to METH_NOARGS.
Neal Norwitz <nnorwitz@gmail.com>
parents: 21313
diff changeset
567 thread_get_ident(PyObject *self)
1746
1940892d2fe3 Merge alpha100 branch back to main trunk
Guido van Rossum <guido@python.org>
parents: 1418
diff changeset
568 {
1940892d2fe3 Merge alpha100 branch back to main trunk
Guido van Rossum <guido@python.org>
parents: 1418
diff changeset
569 long ident;
9679
877d23bd5bdc Thanks to Chris Herborth, the thread primitives now have proper Py*
Guido van Rossum <guido@python.org>
parents: 9588
diff changeset
570 ident = PyThread_get_thread_ident();
1746
1940892d2fe3 Merge alpha100 branch back to main trunk
Guido van Rossum <guido@python.org>
parents: 1418
diff changeset
571 if (ident == -1) {
4751
7ab835f87f86 Renamed.
Barry Warsaw <barry@python.org>
parents: 4600
diff changeset
572 PyErr_SetString(ThreadError, "no current thread ident");
1746
1940892d2fe3 Merge alpha100 branch back to main trunk
Guido van Rossum <guido@python.org>
parents: 1418
diff changeset
573 return NULL;
1940892d2fe3 Merge alpha100 branch back to main trunk
Guido van Rossum <guido@python.org>
parents: 1418
diff changeset
574 }
4751
7ab835f87f86 Renamed.
Barry Warsaw <barry@python.org>
parents: 4600
diff changeset
575 return PyInt_FromLong(ident);
1746
1940892d2fe3 Merge alpha100 branch back to main trunk
Guido van Rossum <guido@python.org>
parents: 1418
diff changeset
576 }
1940892d2fe3 Merge alpha100 branch back to main trunk
Guido van Rossum <guido@python.org>
parents: 1418
diff changeset
577
23832
ed1ba37a46b7 Patch #568124: Add doc string macros.
Martin v. Löwis <martin@v.loewis.de>
parents: 22865
diff changeset
578 PyDoc_STRVAR(get_ident_doc,
8562
ff9adb57b8b5 Added doc strings. Also export LockType from the modoule, and give it
Guido van Rossum <guido@python.org>
parents: 8433
diff changeset
579 "get_ident() -> integer\n\
ff9adb57b8b5 Added doc strings. Also export LockType from the modoule, and give it
Guido van Rossum <guido@python.org>
parents: 8433
diff changeset
580 \n\
ff9adb57b8b5 Added doc strings. Also export LockType from the modoule, and give it
Guido van Rossum <guido@python.org>
parents: 8433
diff changeset
581 Return a non-zero integer that uniquely identifies the current thread\n\
ff9adb57b8b5 Added doc strings. Also export LockType from the modoule, and give it
Guido van Rossum <guido@python.org>
parents: 8433
diff changeset
582 amongst other threads that exist simultaneously.\n\
ff9adb57b8b5 Added doc strings. Also export LockType from the modoule, and give it
Guido van Rossum <guido@python.org>
parents: 8433
diff changeset
583 This may be used to identify per-thread resources.\n\
ff9adb57b8b5 Added doc strings. Also export LockType from the modoule, and give it
Guido van Rossum <guido@python.org>
parents: 8433
diff changeset
584 Even though on some platforms threads identities may appear to be\n\
ff9adb57b8b5 Added doc strings. Also export LockType from the modoule, and give it
Guido van Rossum <guido@python.org>
parents: 8433
diff changeset
585 allocated consecutive numbers starting at 1, this behavior should not\n\
ff9adb57b8b5 Added doc strings. Also export LockType from the modoule, and give it
Guido van Rossum <guido@python.org>
parents: 8433
diff changeset
586 be relied upon, and the number should be seen purely as a magic cookie.\n\
23832
ed1ba37a46b7 Patch #568124: Add doc string macros.
Martin v. Löwis <martin@v.loewis.de>
parents: 22865
diff changeset
587 A thread's identity may be reused for another thread after it exits.");
8562
ff9adb57b8b5 Added doc strings. Also export LockType from the modoule, and give it
Guido van Rossum <guido@python.org>
parents: 8433
diff changeset
588
38794
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
589 static PyObject *
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
590 thread_stack_size(PyObject *self, PyObject *args)
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
591 {
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
592 size_t old_size;
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
593 Py_ssize_t new_size = 0;
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
594 int rc;
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
595
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
596 if (!PyArg_ParseTuple(args, "|n:stack_size", &new_size))
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
597 return NULL;
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
598
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
599 if (new_size < 0) {
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
600 PyErr_SetString(PyExc_ValueError,
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
601 "size must be 0 or a positive value");
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
602 return NULL;
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
603 }
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
604
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
605 old_size = PyThread_get_stacksize();
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
606
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
607 rc = PyThread_set_stacksize((size_t) new_size);
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
608 if (rc == -1) {
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
609 PyErr_Format(PyExc_ValueError,
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
610 "size not valid: %zd bytes",
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
611 new_size);
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
612 return NULL;
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
613 }
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
614 if (rc == -2) {
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
615 PyErr_SetString(ThreadError,
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
616 "setting stack size not supported");
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
617 return NULL;
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
618 }
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
619
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
620 return PyInt_FromSsize_t((Py_ssize_t) old_size);
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
621 }
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
622
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
623 PyDoc_STRVAR(stack_size_doc,
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
624 "stack_size([size]) -> size\n\
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
625 \n\
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
626 Return the thread stack size used when creating new threads. The\n\
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
627 optional size argument specifies the stack size (in bytes) to be used\n\
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
628 for subsequently created threads, and must be 0 (use platform or\n\
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
629 configured default) or a positive integer value of at least 32,768 (32k).\n\
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
630 If changing the thread stack size is unsupported, a ThreadError\n\
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
631 exception is raised. If the specified size is invalid, a ValueError\n\
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
632 exception is raised, and the stack size is unmodified. 32k bytes\n\
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
633 currently the minimum supported stack size value to guarantee\n\
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
634 sufficient stack space for the interpreter itself.\n\
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
635 \n\
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
636 Note that some platforms may have particular restrictions on values for\n\
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
637 the stack size, such as requiring a minimum stack size larger than 32kB or\n\
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
638 requiring allocation in multiples of the system memory page size\n\
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
639 - platform documentation should be referred to for more information\n\
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
640 (4kB pages are common; using multiples of 4096 for the stack size is\n\
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
641 the suggested approach in the absence of more specific information).");
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
642
4751
7ab835f87f86 Renamed.
Barry Warsaw <barry@python.org>
parents: 4600
diff changeset
643 static PyMethodDef thread_methods[] = {
13817
3c0f75a2198f Use METH_VARARGS instead of numeric constant 1 in method def. tables
Andrew M. Kuchling <amk@amk.ca>
parents: 13651
diff changeset
644 {"start_new_thread", (PyCFunction)thread_PyThread_start_new_thread,
3c0f75a2198f Use METH_VARARGS instead of numeric constant 1 in method def. tables
Andrew M. Kuchling <amk@amk.ca>
parents: 13651
diff changeset
645 METH_VARARGS,
8562
ff9adb57b8b5 Added doc strings. Also export LockType from the modoule, and give it
Guido van Rossum <guido@python.org>
parents: 8433
diff changeset
646 start_new_doc},
13817
3c0f75a2198f Use METH_VARARGS instead of numeric constant 1 in method def. tables
Andrew M. Kuchling <amk@amk.ca>
parents: 13651
diff changeset
647 {"start_new", (PyCFunction)thread_PyThread_start_new_thread,
3c0f75a2198f Use METH_VARARGS instead of numeric constant 1 in method def. tables
Andrew M. Kuchling <amk@amk.ca>
parents: 13651
diff changeset
648 METH_VARARGS,
8562
ff9adb57b8b5 Added doc strings. Also export LockType from the modoule, and give it
Guido van Rossum <guido@python.org>
parents: 8433
diff changeset
649 start_new_doc},
13820
8bd82cf361aa Use METH_OLDARGS instead of numeric constant 0 in method def. tables
Andrew M. Kuchling <amk@amk.ca>
parents: 13817
diff changeset
650 {"allocate_lock", (PyCFunction)thread_PyThread_allocate_lock,
22561
043ad7adc896 Remove many uses of PyArg_NoArgs macro, change METH_OLDARGS to METH_NOARGS.
Neal Norwitz <nnorwitz@gmail.com>
parents: 21313
diff changeset
651 METH_NOARGS, allocate_doc},
13820
8bd82cf361aa Use METH_OLDARGS instead of numeric constant 0 in method def. tables
Andrew M. Kuchling <amk@amk.ca>
parents: 13817
diff changeset
652 {"allocate", (PyCFunction)thread_PyThread_allocate_lock,
22584
bcd1fdf13acf Missed change METH_OLDARGS to METH_NOARGS for two aliased functions
Neal Norwitz <nnorwitz@gmail.com>
parents: 22562
diff changeset
653 METH_NOARGS, allocate_doc},
13820
8bd82cf361aa Use METH_OLDARGS instead of numeric constant 0 in method def. tables
Andrew M. Kuchling <amk@amk.ca>
parents: 13817
diff changeset
654 {"exit_thread", (PyCFunction)thread_PyThread_exit_thread,
22561
043ad7adc896 Remove many uses of PyArg_NoArgs macro, change METH_OLDARGS to METH_NOARGS.
Neal Norwitz <nnorwitz@gmail.com>
parents: 21313
diff changeset
655 METH_NOARGS, exit_doc},
13820
8bd82cf361aa Use METH_OLDARGS instead of numeric constant 0 in method def. tables
Andrew M. Kuchling <amk@amk.ca>
parents: 13817
diff changeset
656 {"exit", (PyCFunction)thread_PyThread_exit_thread,
22584
bcd1fdf13acf Missed change METH_OLDARGS to METH_NOARGS for two aliased functions
Neal Norwitz <nnorwitz@gmail.com>
parents: 22562
diff changeset
657 METH_NOARGS, exit_doc},
29498
1402f265e48f Correct function name.
Kurt B. Kaiser <kbk@shore.net>
parents: 29444
diff changeset
658 {"interrupt_main", (PyCFunction)thread_PyThread_interrupt_main,
29444
8d160095eb66 Add interrupt_main() to thread module.
Kurt B. Kaiser <kbk@shore.net>
parents: 28889
diff changeset
659 METH_NOARGS, interrupt_doc},
13820
8bd82cf361aa Use METH_OLDARGS instead of numeric constant 0 in method def. tables
Andrew M. Kuchling <amk@amk.ca>
parents: 13817
diff changeset
660 {"get_ident", (PyCFunction)thread_get_ident,
22561
043ad7adc896 Remove many uses of PyArg_NoArgs macro, change METH_OLDARGS to METH_NOARGS.
Neal Norwitz <nnorwitz@gmail.com>
parents: 21313
diff changeset
661 METH_NOARGS, get_ident_doc},
38794
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
662 {"stack_size", (PyCFunction)thread_stack_size,
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
663 METH_VARARGS,
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable.
Andrew MacIntyre <andymac@bullseye.apana.org.au>
parents: 38592
diff changeset
664 stack_size_doc},
1746
1940892d2fe3 Merge alpha100 branch back to main trunk
Guido van Rossum <guido@python.org>
parents: 1418
diff changeset
665 #ifndef NO_EXIT_PROG
22709
3aa4bf7ac31e Remove METH_OLDARGS:
Neal Norwitz <nnorwitz@gmail.com>
parents: 22584
diff changeset
666 {"exit_prog", (PyCFunction)thread_PyThread_exit_prog,
3aa4bf7ac31e Remove METH_OLDARGS:
Neal Norwitz <nnorwitz@gmail.com>
parents: 22584
diff changeset
667 METH_VARARGS},
1746
1940892d2fe3 Merge alpha100 branch back to main trunk
Guido van Rossum <guido@python.org>
parents: 1418
diff changeset
668 #endif
923
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
669 {NULL, NULL} /* sentinel */
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
670 };
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
671
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
672
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
673 /* Initialization function */
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
674
23832
ed1ba37a46b7 Patch #568124: Add doc string macros.
Martin v. Löwis <martin@v.loewis.de>
parents: 22865
diff changeset
675 PyDoc_STRVAR(thread_doc,
8562
ff9adb57b8b5 Added doc strings. Also export LockType from the modoule, and give it
Guido van Rossum <guido@python.org>
parents: 8433
diff changeset
676 "This module provides primitive operations to write multi-threaded programs.\n\
23832
ed1ba37a46b7 Patch #568124: Add doc string macros.
Martin v. Löwis <martin@v.loewis.de>
parents: 22865
diff changeset
677 The 'threading' module provides a more convenient interface.");
8562
ff9adb57b8b5 Added doc strings. Also export LockType from the modoule, and give it
Guido van Rossum <guido@python.org>
parents: 8433
diff changeset
678
23832
ed1ba37a46b7 Patch #568124: Add doc string macros.
Martin v. Löwis <martin@v.loewis.de>
parents: 22865
diff changeset
679 PyDoc_STRVAR(lock_doc,
8562
ff9adb57b8b5 Added doc strings. Also export LockType from the modoule, and give it
Guido van Rossum <guido@python.org>
parents: 8433
diff changeset
680 "A lock object is a synchronization primitive. To create a lock,\n\
9679
877d23bd5bdc Thanks to Chris Herborth, the thread primitives now have proper Py*
Guido van Rossum <guido@python.org>
parents: 9588
diff changeset
681 call the PyThread_allocate_lock() function. Methods are:\n\
8562
ff9adb57b8b5 Added doc strings. Also export LockType from the modoule, and give it
Guido van Rossum <guido@python.org>
parents: 8433
diff changeset
682 \n\
ff9adb57b8b5 Added doc strings. Also export LockType from the modoule, and give it
Guido van Rossum <guido@python.org>
parents: 8433
diff changeset
683 acquire() -- lock the lock, possibly blocking until it can be obtained\n\
ff9adb57b8b5 Added doc strings. Also export LockType from the modoule, and give it
Guido van Rossum <guido@python.org>
parents: 8433
diff changeset
684 release() -- unlock of the lock\n\
ff9adb57b8b5 Added doc strings. Also export LockType from the modoule, and give it
Guido van Rossum <guido@python.org>
parents: 8433
diff changeset
685 locked() -- test whether the lock is currently locked\n\
ff9adb57b8b5 Added doc strings. Also export LockType from the modoule, and give it
Guido van Rossum <guido@python.org>
parents: 8433
diff changeset
686 \n\
ff9adb57b8b5 Added doc strings. Also export LockType from the modoule, and give it
Guido van Rossum <guido@python.org>
parents: 8433
diff changeset
687 A lock is not owned by the thread that locked it; another thread may\n\
ff9adb57b8b5 Added doc strings. Also export LockType from the modoule, and give it
Guido van Rossum <guido@python.org>
parents: 8433
diff changeset
688 unlock it. A thread attempting to lock a lock that it has already locked\n\
23832
ed1ba37a46b7 Patch #568124: Add doc string macros.
Martin v. Löwis <martin@v.loewis.de>
parents: 22865
diff changeset
689 will block until another thread unlocks it. Deadlocks may ensue.");
8562
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Guido van Rossum <guido@python.org>
parents: 8433
diff changeset
690
24471
f66b3a3509c7 Excise DL_EXPORT/DL_IMPORT from Modules/*. Required adding a prototype
Mark Hammond <mhammond@skippinet.com.au>
parents: 24280
diff changeset
691 PyMODINIT_FUNC
13651
8a063423e0b7 Bunch of minor ANSIfications: 'void initfunc()' -> 'void initfunc(void)',
Thomas Wouters <thomas@python.org>
parents: 13497
diff changeset
692 initthread(void)
923
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Guido van Rossum <guido@python.org>
parents:
diff changeset
693 {
4751
7ab835f87f86 Renamed.
Barry Warsaw <barry@python.org>
parents: 4600
diff changeset
694 PyObject *m, *d;
35086
c6b7fadf0ada Consistently use hard tabs for indentation.
Michael W. Hudson <mwh@python.net>
parents: 35085
diff changeset
695
c6b7fadf0ada Consistently use hard tabs for indentation.
Michael W. Hudson <mwh@python.net>
parents: 35085
diff changeset
696 /* Initialize types: */
c6b7fadf0ada Consistently use hard tabs for indentation.
Michael W. Hudson <mwh@python.net>
parents: 35085
diff changeset
697 if (PyType_Ready(&localtype) < 0)
c6b7fadf0ada Consistently use hard tabs for indentation.
Michael W. Hudson <mwh@python.net>
parents: 35085
diff changeset
698 return;
923
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
699
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
700 /* Create the module and add the functions */
8562
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Guido van Rossum <guido@python.org>
parents: 8433
diff changeset
701 m = Py_InitModule3("thread", thread_methods, thread_doc);
36324
1af7f719ed28 Check return result from Py_InitModule*(). This API can fail.
Neal Norwitz <nnorwitz@gmail.com>
parents: 35117
diff changeset
702 if (m == NULL)
1af7f719ed28 Check return result from Py_InitModule*(). This API can fail.
Neal Norwitz <nnorwitz@gmail.com>
parents: 35117
diff changeset
703 return;
923
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Guido van Rossum <guido@python.org>
parents:
diff changeset
704
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
705 /* Add a symbolic constant */
4751
7ab835f87f86 Renamed.
Barry Warsaw <barry@python.org>
parents: 4600
diff changeset
706 d = PyModule_GetDict(m);
6367
2c29b8982643 Apply two changes, systematically:
Guido van Rossum <guido@python.org>
parents: 5927
diff changeset
707 ThreadError = PyErr_NewException("thread.error", NULL, NULL);
4751
7ab835f87f86 Renamed.
Barry Warsaw <barry@python.org>
parents: 4600
diff changeset
708 PyDict_SetItemString(d, "error", ThreadError);
8562
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Guido van Rossum <guido@python.org>
parents: 8433
diff changeset
709 Locktype.tp_doc = lock_doc;
ff9adb57b8b5 Added doc strings. Also export LockType from the modoule, and give it
Guido van Rossum <guido@python.org>
parents: 8433
diff changeset
710 Py_INCREF(&Locktype);
ff9adb57b8b5 Added doc strings. Also export LockType from the modoule, and give it
Guido van Rossum <guido@python.org>
parents: 8433
diff changeset
711 PyDict_SetItemString(d, "LockType", (PyObject *)&Locktype);
923
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
712
35085
2015d16d2647 Add a missing incref.
Michael W. Hudson <mwh@python.net>
parents: 34998
diff changeset
713 Py_INCREF(&localtype);
35086
c6b7fadf0ada Consistently use hard tabs for indentation.
Michael W. Hudson <mwh@python.net>
parents: 35085
diff changeset
714 if (PyModule_AddObject(m, "_local", (PyObject *)&localtype) < 0)
c6b7fadf0ada Consistently use hard tabs for indentation.
Michael W. Hudson <mwh@python.net>
parents: 35085
diff changeset
715 return;
32673
97768d87394a Implemented thread-local data as proposed on python-dev:
Jim Fulton <jim@zope.com>
parents: 31797
diff changeset
716
923
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
717 /* Initialize the C thread library */
9679
877d23bd5bdc Thanks to Chris Herborth, the thread primitives now have proper Py*
Guido van Rossum <guido@python.org>
parents: 9588
diff changeset
718 PyThread_init_thread();
923
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Guido van Rossum <guido@python.org>
parents:
diff changeset
719 }