annotate Modules/_threadmodule.c @ 60028:030d6bf1d995 3.1

Merged revisions 79434 via svnmerge from svn+ssh://pythondev@svn.python.org/python/branches/py3k ................ r79434 | brian.curtin | 2010-03-25 19:39:56 -0500 (Thu, 25 Mar 2010) | 9 lines Merged revisions 79430 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r79430 | brian.curtin | 2010-03-25 18:48:54 -0500 (Thu, 25 Mar 2010) | 2 lines Fix #6538. Markup RegexObject and MatchObject as classes. Patch by Ryan Arana. ........ ................
author Brian Curtin <brian.curtin@gmail.com>
date Fri, 26 Mar 2010 02:29:25 +0000
parents d7a62c16505b
children f197407bdba2
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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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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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15 static PyObject *ThreadError;
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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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25 static void
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26 lock_dealloc(lockobject *self)
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27 {
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28 if (self->lock_lock != NULL) {
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29 /* Unlock the lock so it's safe to free it */
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30 PyThread_acquire_lock(self->lock_lock, 0);
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31 PyThread_release_lock(self->lock_lock);
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32
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33 PyThread_free_lock(self->lock_lock);
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34 }
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35 PyObject_Del(self);
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36 }
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38 static PyObject *
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39 lock_PyThread_acquire_lock(lockobject *self, PyObject *args)
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40 {
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41 int i = 1;
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43 if (!PyArg_ParseTuple(args, "|i:acquire", &i))
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44 return NULL;
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46 Py_BEGIN_ALLOW_THREADS
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47 i = PyThread_acquire_lock(self->lock_lock, i);
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48 Py_END_ALLOW_THREADS
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49
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50 return PyBool_FromLong((long)i);
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51 }
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52
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53 PyDoc_STRVAR(acquire_doc,
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54 "acquire([wait]) -> None or bool\n\
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55 (acquire_lock() is an obsolete synonym)\n\
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56 \n\
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57 Lock the lock. Without argument, this blocks if the lock is already\n\
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58 locked (even by the same thread), waiting for another thread to release\n\
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59 the lock, and return None once the lock is acquired.\n\
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60 With an argument, this will only block if the argument is true,\n\
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61 and the return value reflects whether the lock is acquired.\n\
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62 The blocking operation is not interruptible.");
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63
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64 static PyObject *
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65 lock_PyThread_release_lock(lockobject *self)
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66 {
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67 /* Sanity check: the lock must be locked */
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68 if (PyThread_acquire_lock(self->lock_lock, 0)) {
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69 PyThread_release_lock(self->lock_lock);
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70 PyErr_SetString(ThreadError, "release unlocked lock");
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71 return NULL;
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72 }
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73
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74 PyThread_release_lock(self->lock_lock);
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75 Py_INCREF(Py_None);
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76 return Py_None;
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77 }
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78
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79 PyDoc_STRVAR(release_doc,
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80 "release()\n\
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81 (release_lock() is an obsolete synonym)\n\
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82 \n\
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83 Release the lock, allowing another thread that is blocked waiting for\n\
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84 the lock to acquire the lock. The lock must be in the locked state,\n\
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85 but it needn't be locked by the same thread that unlocks it.");
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86
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87 static PyObject *
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88 lock_locked_lock(lockobject *self)
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89 {
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90 if (PyThread_acquire_lock(self->lock_lock, 0)) {
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91 PyThread_release_lock(self->lock_lock);
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92 return PyBool_FromLong(0L);
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93 }
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94 return PyBool_FromLong(1L);
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95 }
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96
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97 PyDoc_STRVAR(locked_doc,
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98 "locked() -> bool\n\
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99 (locked_lock() is an obsolete synonym)\n\
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100 \n\
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101 Return whether the lock is in the locked state.");
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102
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103 static PyMethodDef lock_methods[] = {
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104 {"acquire_lock", (PyCFunction)lock_PyThread_acquire_lock,
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105 METH_VARARGS, acquire_doc},
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106 {"acquire", (PyCFunction)lock_PyThread_acquire_lock,
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107 METH_VARARGS, acquire_doc},
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108 {"release_lock", (PyCFunction)lock_PyThread_release_lock,
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109 METH_NOARGS, release_doc},
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110 {"release", (PyCFunction)lock_PyThread_release_lock,
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111 METH_NOARGS, release_doc},
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112 {"locked_lock", (PyCFunction)lock_locked_lock,
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113 METH_NOARGS, locked_doc},
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114 {"locked", (PyCFunction)lock_locked_lock,
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115 METH_NOARGS, locked_doc},
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116 {"__enter__", (PyCFunction)lock_PyThread_acquire_lock,
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117 METH_VARARGS, acquire_doc},
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118 {"__exit__", (PyCFunction)lock_PyThread_release_lock,
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119 METH_VARARGS, release_doc},
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120 {NULL, NULL} /* sentinel */
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121 };
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122
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123 static PyTypeObject Locktype = {
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124 PyVarObject_HEAD_INIT(&PyType_Type, 0)
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125 "_thread.lock", /*tp_name*/
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126 sizeof(lockobject), /*tp_size*/
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127 0, /*tp_itemsize*/
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128 /* methods */
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129 (destructor)lock_dealloc, /*tp_dealloc*/
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130 0, /*tp_print*/
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131 0, /*tp_getattr*/
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132 0, /*tp_setattr*/
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Mark Dickinson <dickinsm@gmail.com>
parents: 48413
diff changeset
133 0, /*tp_reserved*/
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Guido van Rossum <guido@python.org>
parents: 1418
diff changeset
134 0, /*tp_repr*/
48413
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Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 48388
diff changeset
135 0, /*tp_as_number*/
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Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 48388
diff changeset
136 0, /*tp_as_sequence*/
7e56016a6565 #3247 Get rid of Py_FindMethod; use tp_members instead.
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 48388
diff changeset
137 0, /*tp_as_mapping*/
7e56016a6565 #3247 Get rid of Py_FindMethod; use tp_members instead.
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 48388
diff changeset
138 0, /*tp_hash*/
7e56016a6565 #3247 Get rid of Py_FindMethod; use tp_members instead.
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 48388
diff changeset
139 0, /*tp_call*/
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Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 48388
diff changeset
140 0, /*tp_str*/
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Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 48388
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141 0, /*tp_getattro*/
7e56016a6565 #3247 Get rid of Py_FindMethod; use tp_members instead.
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 48388
diff changeset
142 0, /*tp_setattro*/
7e56016a6565 #3247 Get rid of Py_FindMethod; use tp_members instead.
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 48388
diff changeset
143 0, /*tp_as_buffer*/
7e56016a6565 #3247 Get rid of Py_FindMethod; use tp_members instead.
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 48388
diff changeset
144 Py_TPFLAGS_DEFAULT, /*tp_flags*/
7e56016a6565 #3247 Get rid of Py_FindMethod; use tp_members instead.
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 48388
diff changeset
145 0, /*tp_doc*/
7e56016a6565 #3247 Get rid of Py_FindMethod; use tp_members instead.
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 48388
diff changeset
146 0, /*tp_traverse*/
7e56016a6565 #3247 Get rid of Py_FindMethod; use tp_members instead.
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 48388
diff changeset
147 0, /*tp_clear*/
7e56016a6565 #3247 Get rid of Py_FindMethod; use tp_members instead.
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 48388
diff changeset
148 0, /*tp_richcompare*/
7e56016a6565 #3247 Get rid of Py_FindMethod; use tp_members instead.
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 48388
diff changeset
149 0, /*tp_weaklistoffset*/
7e56016a6565 #3247 Get rid of Py_FindMethod; use tp_members instead.
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 48388
diff changeset
150 0, /*tp_iter*/
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Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 48388
diff changeset
151 0, /*tp_iternext*/
7e56016a6565 #3247 Get rid of Py_FindMethod; use tp_members instead.
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 48388
diff changeset
152 lock_methods, /*tp_methods*/
923
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
153 };
72aceed365d4 * Makefile adapted to changes below.
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parents:
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154
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Thomas Wouters <thomas@python.org>
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155 static lockobject *
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156 newlockobject(void)
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157 {
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158 lockobject *self;
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159 self = PyObject_New(lockobject, &Locktype);
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160 if (self == NULL)
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161 return NULL;
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162 self->lock_lock = PyThread_allocate_lock();
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163 if (self->lock_lock == NULL) {
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Victor Stinner <victor.stinner@haypocalc.com>
parents: 56277
diff changeset
164 Py_DECREF(self);
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165 PyErr_SetString(ThreadError, "can't allocate lock");
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parents: 56277
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166 return NULL;
37879
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167 }
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168 return self;
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169 }
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
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170
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171 /* Thread-local objects */
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172
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173 #include "structmember.h"
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174
97768d87394a Implemented thread-local data as proposed on python-dev:
Jim Fulton <jim@zope.com>
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175 typedef struct {
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176 PyObject_HEAD
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177 PyObject *key;
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178 PyObject *args;
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179 PyObject *kw;
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180 PyObject *dict;
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Jim Fulton <jim@zope.com>
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181 } localobject;
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182
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183 static PyObject *
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184 local_new(PyTypeObject *type, PyObject *args, PyObject *kw)
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185 {
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186 localobject *self;
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187 PyObject *tdict;
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188
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189 if (type->tp_init == PyBaseObject_Type.tp_init
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190 && ((args && PyObject_IsTrue(args))
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191 || (kw && PyObject_IsTrue(kw)))) {
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192 PyErr_SetString(PyExc_TypeError,
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193 "Initialization arguments are not supported");
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194 return NULL;
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195 }
32673
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196
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197 self = (localobject *)type->tp_alloc(type, 0);
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198 if (self == NULL)
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199 return NULL;
32673
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diff changeset
200
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201 Py_XINCREF(args);
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202 self->args = args;
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203 Py_XINCREF(kw);
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diff changeset
204 self->kw = kw;
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205 self->dict = NULL; /* making sure */
42122
6710f453cf4a Make "thread.local" key a unicode object.
Walter Dörwald <walter@livinglogic.de>
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diff changeset
206 self->key = PyUnicode_FromFormat("thread.local.%p", self);
35086
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diff changeset
207 if (self->key == NULL)
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diff changeset
208 goto err;
32673
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diff changeset
209
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210 self->dict = PyDict_New();
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diff changeset
211 if (self->dict == NULL)
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diff changeset
212 goto err;
32673
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Jim Fulton <jim@zope.com>
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diff changeset
213
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diff changeset
214 tdict = PyThreadState_GetDict();
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diff changeset
215 if (tdict == NULL) {
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diff changeset
216 PyErr_SetString(PyExc_SystemError,
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diff changeset
217 "Couldn't get thread-state dictionary");
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218 goto err;
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219 }
32673
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diff changeset
220
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221 if (PyDict_SetItem(tdict, self->key, self->dict) < 0)
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222 goto err;
32673
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diff changeset
223
35086
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224 return (PyObject *)self;
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225
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226 err:
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227 Py_DECREF(self);
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228 return NULL;
32673
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229 }
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diff changeset
230
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diff changeset
231 static int
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diff changeset
232 local_traverse(localobject *self, visitproc visit, void *arg)
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diff changeset
233 {
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234 Py_VISIT(self->args);
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diff changeset
235 Py_VISIT(self->kw);
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236 Py_VISIT(self->dict);
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237 return 0;
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238 }
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diff changeset
239
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diff changeset
240 static int
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diff changeset
241 local_clear(localobject *self)
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diff changeset
242 {
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243 Py_CLEAR(self->args);
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diff changeset
244 Py_CLEAR(self->kw);
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diff changeset
245 Py_CLEAR(self->dict);
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246 return 0;
32673
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247 }
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diff changeset
248
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diff changeset
249 static void
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diff changeset
250 local_dealloc(localobject *self)
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diff changeset
251 {
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diff changeset
252 PyThreadState *tstate;
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diff changeset
253 if (self->key
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254 && (tstate = PyThreadState_Get())
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diff changeset
255 && tstate->interp) {
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256 for(tstate = PyInterpreterState_ThreadHead(tstate->interp);
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diff changeset
257 tstate;
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258 tstate = PyThreadState_Next(tstate))
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diff changeset
259 if (tstate->dict &&
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260 PyDict_GetItem(tstate->dict, self->key))
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261 PyDict_DelItem(tstate->dict, self->key);
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diff changeset
262 }
32673
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diff changeset
263
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Philip Jenvey <pjenvey@underboss.org>
parents: 51271
diff changeset
264 Py_XDECREF(self->key);
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diff changeset
265 local_clear(self);
44351
86a2679dca46 #1629: Renamed Py_Size, Py_Type and Py_Refcnt to Py_SIZE, Py_TYPE and Py_REFCNT.
Christian Heimes <christian@cheimes.de>
parents: 44099
diff changeset
266 Py_TYPE(self)->tp_free((PyObject*)self);
32673
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diff changeset
267 }
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diff changeset
268
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diff changeset
269 static PyObject *
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270 _ldict(localobject *self)
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271 {
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272 PyObject *tdict, *ldict;
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273
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274 tdict = PyThreadState_GetDict();
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275 if (tdict == NULL) {
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276 PyErr_SetString(PyExc_SystemError,
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277 "Couldn't get thread-state dictionary");
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278 return NULL;
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279 }
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280
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281 ldict = PyDict_GetItem(tdict, self->key);
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282 if (ldict == NULL) {
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283 ldict = PyDict_New(); /* we own ldict */
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284
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285 if (ldict == NULL)
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286 return NULL;
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287 else {
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288 int i = PyDict_SetItem(tdict, self->key, ldict);
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289 Py_DECREF(ldict); /* now ldict is borrowed */
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290 if (i < 0)
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291 return NULL;
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292 }
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293
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294 Py_CLEAR(self->dict);
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295 Py_INCREF(ldict);
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296 self->dict = ldict; /* still borrowed */
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297
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298 if (Py_TYPE(self)->tp_init != PyBaseObject_Type.tp_init &&
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299 Py_TYPE(self)->tp_init((PyObject*)self,
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300 self->args, self->kw) < 0) {
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301 /* we need to get rid of ldict from thread so
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302 we create a new one the next time we do an attr
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303 acces */
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304 PyDict_DelItem(tdict, self->key);
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305 return NULL;
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306 }
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307
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308 }
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309
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310 /* The call to tp_init above may have caused another thread to run.
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311 Install our ldict again. */
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312 if (self->dict != ldict) {
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313 Py_CLEAR(self->dict);
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314 Py_INCREF(ldict);
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315 self->dict = ldict;
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316 }
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317
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318 return ldict;
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319 }
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320
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321 static int
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322 local_setattro(localobject *self, PyObject *name, PyObject *v)
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323 {
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324 PyObject *ldict;
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325
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326 ldict = _ldict(self);
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327 if (ldict == NULL)
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328 return -1;
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329
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330 return PyObject_GenericSetAttr((PyObject *)self, name, v);
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331 }
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332
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333 static PyObject *
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334 local_getdict(localobject *self, void *closure)
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335 {
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336 if (self->dict == NULL) {
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337 PyErr_SetString(PyExc_AttributeError, "__dict__");
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338 return NULL;
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339 }
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340
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341 Py_INCREF(self->dict);
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342 return self->dict;
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343 }
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344
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345 static PyGetSetDef local_getset[] = {
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346 {"__dict__", (getter)local_getdict, (setter)NULL,
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347 "Local-data dictionary", NULL},
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348 {NULL} /* Sentinel */
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349 };
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350
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351 static PyObject *local_getattro(localobject *, PyObject *);
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352
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353 static PyTypeObject localtype = {
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354 PyVarObject_HEAD_INIT(NULL, 0)
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355 /* tp_name */ "_thread._local",
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356 /* tp_basicsize */ sizeof(localobject),
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357 /* tp_itemsize */ 0,
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358 /* tp_dealloc */ (destructor)local_dealloc,
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359 /* tp_print */ 0,
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360 /* tp_getattr */ 0,
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361 /* tp_setattr */ 0,
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362 /* tp_reserved */ 0,
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363 /* tp_repr */ 0,
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364 /* tp_as_number */ 0,
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365 /* tp_as_sequence */ 0,
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366 /* tp_as_mapping */ 0,
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367 /* tp_hash */ 0,
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368 /* tp_call */ 0,
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369 /* tp_str */ 0,
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370 /* tp_getattro */ (getattrofunc)local_getattro,
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371 /* tp_setattro */ (setattrofunc)local_setattro,
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372 /* tp_as_buffer */ 0,
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373 /* tp_flags */ Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,
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374 /* tp_doc */ "Thread-local data",
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375 /* tp_traverse */ (traverseproc)local_traverse,
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376 /* tp_clear */ (inquiry)local_clear,
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377 /* tp_richcompare */ 0,
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378 /* tp_weaklistoffset */ 0,
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379 /* tp_iter */ 0,
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380 /* tp_iternext */ 0,
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381 /* tp_methods */ 0,
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382 /* tp_members */ 0,
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383 /* tp_getset */ local_getset,
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384 /* tp_base */ 0,
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385 /* tp_dict */ 0, /* internal use */
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386 /* tp_descr_get */ 0,
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387 /* tp_descr_set */ 0,
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388 /* tp_dictoffset */ offsetof(localobject, dict),
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389 /* tp_init */ 0,
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390 /* tp_alloc */ 0,
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391 /* tp_new */ local_new,
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392 /* tp_free */ 0, /* Low-level free-mem routine */
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393 /* tp_is_gc */ 0, /* For PyObject_IS_GC */
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394 };
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395
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396 static PyObject *
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397 local_getattro(localobject *self, PyObject *name)
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398 {
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399 PyObject *ldict, *value;
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400
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401 ldict = _ldict(self);
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402 if (ldict == NULL)
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403 return NULL;
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents: 36926
diff changeset
404
44351
86a2679dca46 #1629: Renamed Py_Size, Py_Type and Py_Refcnt to Py_SIZE, Py_TYPE and Py_REFCNT.
Christian Heimes <christian@cheimes.de>
parents: 44099
diff changeset
405 if (Py_TYPE(self) != &localtype)
37879
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents: 36926
diff changeset
406 /* use generic lookup for subtypes */
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents: 36926
diff changeset
407 return PyObject_GenericGetAttr((PyObject *)self, name);
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents: 36926
diff changeset
408
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents: 36926
diff changeset
409 /* Optimization: just look in dict ourselves */
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents: 36926
diff changeset
410 value = PyDict_GetItem(ldict, name);
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents: 36926
diff changeset
411 if (value == NULL)
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents: 36926
diff changeset
412 /* Fall back on generic to get __class__ and __dict__ */
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents: 36926
diff changeset
413 return PyObject_GenericGetAttr((PyObject *)self, name);
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents: 36926
diff changeset
414
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents: 36926
diff changeset
415 Py_INCREF(value);
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents: 36926
diff changeset
416 return value;
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents: 36926
diff changeset
417 }
923
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
418
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
419 /* Module functions */
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
420
5405
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
421 struct bootstate {
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
422 PyInterpreterState *interp;
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
423 PyObject *func;
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
424 PyObject *args;
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
425 PyObject *keyw;
59317
d7a62c16505b Merged revisions 78639 via svnmerge from
Victor Stinner <victor.stinner@haypocalc.com>
parents: 59292
diff changeset
426 PyThreadState *tstate;
5405
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
427 };
923
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
428
5405
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
429 static void
13497
95454b73ea91 ANSI-fication
Peter Schneider-Kamp <nowonder@nowonder.de>
parents: 13256
diff changeset
430 t_bootstrap(void *boot_raw)
5405
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
431 {
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
432 struct bootstate *boot = (struct bootstate *) boot_raw;
35117
7ea2be2c0e1d Fix bug:
Michael W. Hudson <mwh@python.net>
parents: 35086
diff changeset
433 PyThreadState *tstate;
5405
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
434 PyObject *res;
961
a31e07847063 New thread.c from Sjoerd, supports _exit_prog(). Use this in goaway()
Guido van Rossum <guido@python.org>
parents: 926
diff changeset
435
59317
d7a62c16505b Merged revisions 78639 via svnmerge from
Victor Stinner <victor.stinner@haypocalc.com>
parents: 59292
diff changeset
436 tstate = boot->tstate;
d7a62c16505b Merged revisions 78639 via svnmerge from
Victor Stinner <victor.stinner@haypocalc.com>
parents: 59292
diff changeset
437 tstate->thread_id = PyThread_get_thread_ident();
d7a62c16505b Merged revisions 78639 via svnmerge from
Victor Stinner <victor.stinner@haypocalc.com>
parents: 59292
diff changeset
438 _PyThreadState_Init(tstate);
35117
7ea2be2c0e1d Fix bug:
Michael W. Hudson <mwh@python.net>
parents: 35086
diff changeset
439 PyEval_AcquireThread(tstate);
5405
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
440 res = PyEval_CallObjectWithKeywords(
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
441 boot->func, boot->args, boot->keyw);
923
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Guido van Rossum <guido@python.org>
parents:
diff changeset
442 if (res == NULL) {
8433
7cdff8aa8318 t_bootstrap(): Use PyErr_ExceptionMatches(...) instead of PyErr_Occurred(...).
Fred Drake <fdrake@acm.org>
parents: 7211
diff changeset
443 if (PyErr_ExceptionMatches(PyExc_SystemExit))
4751
7ab835f87f86 Renamed.
Barry Warsaw <barry@python.org>
parents: 4600
diff changeset
444 PyErr_Clear();
2568
2c61786327cf implement exit_thread through SystemExit exception
Guido van Rossum <guido@python.org>
parents: 2123
diff changeset
445 else {
28889
96b6cc5d408b When an unhandled exception happens, report the repr() of the function
Guido van Rossum <guido@python.org>
parents: 25127
diff changeset
446 PyObject *file;
96b6cc5d408b When an unhandled exception happens, report the repr() of the function
Guido van Rossum <guido@python.org>
parents: 25127
diff changeset
447 PySys_WriteStderr(
96b6cc5d408b When an unhandled exception happens, report the repr() of the function
Guido van Rossum <guido@python.org>
parents: 25127
diff changeset
448 "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
449 file = PySys_GetObject("stderr");
43855
ee081609cee8 Added some additional checks for sys.std?? is None, see #1440
Christian Heimes <christian@cheimes.de>
parents: 42334
diff changeset
450 if (file != NULL && file != Py_None)
28889
96b6cc5d408b When an unhandled exception happens, report the repr() of the function
Guido van Rossum <guido@python.org>
parents: 25127
diff changeset
451 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
452 else
96b6cc5d408b When an unhandled exception happens, report the repr() of the function
Guido van Rossum <guido@python.org>
parents: 25127
diff changeset
453 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
454 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
455 PyErr_PrintEx(0);
2568
2c61786327cf implement exit_thread through SystemExit exception
Guido van Rossum <guido@python.org>
parents: 2123
diff changeset
456 }
923
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
457 }
2055
cf31eab6ab5a Another bulky set of minor changes.
Guido van Rossum <guido@python.org>
parents: 1746
diff changeset
458 else
4751
7ab835f87f86 Renamed.
Barry Warsaw <barry@python.org>
parents: 4600
diff changeset
459 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
460 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
461 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
462 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
463 PyMem_DEL(boot_raw);
35117
7ea2be2c0e1d Fix bug:
Michael W. Hudson <mwh@python.net>
parents: 35086
diff changeset
464 PyThreadState_Clear(tstate);
7ea2be2c0e1d Fix bug:
Michael W. Hudson <mwh@python.net>
parents: 35086
diff changeset
465 PyThreadState_DeleteCurrent();
8823
f2a4a2b60860 Changes for BeOS, QNX and long long, by Chris Herborth.
Guido van Rossum <guido@python.org>
parents: 8567
diff changeset
466 PyThread_exit_thread();
923
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
467 }
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
468
4751
7ab835f87f86 Renamed.
Barry Warsaw <barry@python.org>
parents: 4600
diff changeset
469 static PyObject *
13497
95454b73ea91 ANSI-fication
Peter Schneider-Kamp <nowonder@nowonder.de>
parents: 13256
diff changeset
470 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
471 {
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
472 PyObject *func, *args, *keyw = NULL;
5405
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
473 struct bootstate *boot;
20468
ebfd87e87884 Partial patch from SF #452266, by Jason Petrone.
Guido van Rossum <guido@python.org>
parents: 20266
diff changeset
474 long ident;
923
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
475
38669
19fd6141940d Partially merge trunk into p3yk. The removal of Mac/Tools is confusing svn
Thomas Wouters <thomas@python.org>
parents: 38453
diff changeset
476 if (!PyArg_UnpackTuple(fargs, "start_new_thread", 2, 3,
19fd6141940d Partially merge trunk into p3yk. The removal of Mac/Tools is confusing svn
Thomas Wouters <thomas@python.org>
parents: 38453
diff changeset
477 &func, &args, &keyw))
923
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
478 return NULL;
5405
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
479 if (!PyCallable_Check(func)) {
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
480 PyErr_SetString(PyExc_TypeError,
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
481 "first arg must be callable");
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
482 return NULL;
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
483 }
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
484 if (!PyTuple_Check(args)) {
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
485 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
486 "2nd arg must be a tuple");
923
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
487 return NULL;
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
488 }
5405
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
489 if (keyw != NULL && !PyDict_Check(keyw)) {
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
490 PyErr_SetString(PyExc_TypeError,
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
491 "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
492 return NULL;
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
493 }
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
494 boot = PyMem_NEW(struct bootstate, 1);
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
495 if (boot == NULL)
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
496 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
497 boot->interp = PyThreadState_GET()->interp;
5405
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
498 boot->func = func;
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
499 boot->args = args;
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
500 boot->keyw = keyw;
59317
d7a62c16505b Merged revisions 78639 via svnmerge from
Victor Stinner <victor.stinner@haypocalc.com>
parents: 59292
diff changeset
501 boot->tstate = _PyThreadState_Prealloc(boot->interp);
d7a62c16505b Merged revisions 78639 via svnmerge from
Victor Stinner <victor.stinner@haypocalc.com>
parents: 59292
diff changeset
502 if (boot->tstate == NULL) {
d7a62c16505b Merged revisions 78639 via svnmerge from
Victor Stinner <victor.stinner@haypocalc.com>
parents: 59292
diff changeset
503 PyMem_DEL(boot);
d7a62c16505b Merged revisions 78639 via svnmerge from
Victor Stinner <victor.stinner@haypocalc.com>
parents: 59292
diff changeset
504 return PyErr_NoMemory();
d7a62c16505b Merged revisions 78639 via svnmerge from
Victor Stinner <victor.stinner@haypocalc.com>
parents: 59292
diff changeset
505 }
5405
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
506 Py_INCREF(func);
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
507 Py_INCREF(args);
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
508 Py_XINCREF(keyw);
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
509 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
510 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
511 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
512 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
513 Py_DECREF(func);
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
514 Py_DECREF(args);
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
515 Py_XDECREF(keyw);
59317
d7a62c16505b Merged revisions 78639 via svnmerge from
Victor Stinner <victor.stinner@haypocalc.com>
parents: 59292
diff changeset
516 PyThreadState_Clear(boot->tstate);
5405
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
517 PyMem_DEL(boot);
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
518 return NULL;
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 4944
diff changeset
519 }
44099
f324631462a2 Cleanup: Replaced most PyInt_ aliases with PyLong_ and disabled the aliases in intobject.h
Christian Heimes <christian@cheimes.de>
parents: 43855
diff changeset
520 return PyLong_FromLong(ident);
923
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
521 }
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
522
23832
ed1ba37a46b7 Patch #568124: Add doc string macros.
Martin v. Löwis <martin@v.loewis.de>
parents: 22865
diff changeset
523 PyDoc_STRVAR(start_new_doc,
20266
241ef8a923c7 Fix typo in docstring
Andrew M. Kuchling <amk@amk.ca>
parents: 16140
diff changeset
524 "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
525 (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
526 \n\
20468
ebfd87e87884 Partial patch from SF #452266, by Jason Petrone.
Guido van Rossum <guido@python.org>
parents: 20266
diff changeset
527 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
528 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
529 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
530 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
531 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
532 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
533
4751
7ab835f87f86 Renamed.
Barry Warsaw <barry@python.org>
parents: 4600
diff changeset
534 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
535 thread_PyThread_exit_thread(PyObject *self)
923
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
536 {
4751
7ab835f87f86 Renamed.
Barry Warsaw <barry@python.org>
parents: 4600
diff changeset
537 PyErr_SetNone(PyExc_SystemExit);
2568
2c61786327cf implement exit_thread through SystemExit exception
Guido van Rossum <guido@python.org>
parents: 2123
diff changeset
538 return NULL;
923
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
539 }
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
540
23832
ed1ba37a46b7 Patch #568124: Add doc string macros.
Martin v. Löwis <martin@v.loewis.de>
parents: 22865
diff changeset
541 PyDoc_STRVAR(exit_doc,
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parents: 8433
diff changeset
542 "exit()\n\
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diff changeset
543 (PyThread_exit_thread() is an obsolete synonym)\n\
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544 \n\
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parents: 8433
diff changeset
545 This is synonymous to ``raise SystemExit''. It will cause the current\n\
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parents: 22865
diff changeset
546 thread to exit silently unless the exception is caught.");
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parents: 8433
diff changeset
547
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Kurt B. Kaiser <kbk@shore.net>
parents: 28889
diff changeset
548 static PyObject *
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diff changeset
549 thread_PyThread_interrupt_main(PyObject * self)
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diff changeset
550 {
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diff changeset
551 PyErr_SetInterrupt();
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diff changeset
552 Py_INCREF(Py_None);
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553 return Py_None;
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554 }
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555
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556 PyDoc_STRVAR(interrupt_doc,
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diff changeset
557 "interrupt_main()\n\
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558 \n\
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559 Raise a KeyboardInterrupt in the main thread.\n\
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560 A subthread can use this function to interrupt the main thread."
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561 );
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562
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563 #ifndef NO_EXIT_PROG
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564 static PyObject *
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95454b73ea91 ANSI-fication
Peter Schneider-Kamp <nowonder@nowonder.de>
parents: 13256
diff changeset
565 thread_PyThread_exit_prog(PyObject *self, PyObject *args)
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Guido van Rossum <guido@python.org>
parents:
diff changeset
566 {
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parents:
diff changeset
567 int sts;
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parents: 22584
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568 if (!PyArg_ParseTuple(args, "i:exit_prog", &sts))
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Guido van Rossum <guido@python.org>
parents:
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569 return NULL;
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570 Py_Exit(sts); /* Calls PyThread_exit_prog(sts) or _PyThread_exit_prog(sts) */
923
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parents:
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571 for (;;) { } /* Should not be reached */
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572 }
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573 #endif
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parents:
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574
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diff changeset
575 static lockobject *newlockobject(void);
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576
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parents: 4600
diff changeset
577 static PyObject *
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Neal Norwitz <nnorwitz@gmail.com>
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578 thread_PyThread_allocate_lock(PyObject *self)
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parents:
diff changeset
579 {
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580 return (PyObject *) newlockobject();
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parents:
diff changeset
581 }
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Guido van Rossum <guido@python.org>
parents:
diff changeset
582
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Martin v. Löwis <martin@v.loewis.de>
parents: 22865
diff changeset
583 PyDoc_STRVAR(allocate_doc,
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parents: 8433
diff changeset
584 "allocate_lock() -> lock object\n\
ff9adb57b8b5 Added doc strings. Also export LockType from the modoule, and give it
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parents: 8433
diff changeset
585 (allocate() is an obsolete synonym)\n\
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parents: 8433
diff changeset
586 \n\
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Martin v. Löwis <martin@v.loewis.de>
parents: 22865
diff changeset
587 Create a new lock object. See LockType.__doc__ for information about locks.");
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parents: 8433
diff changeset
588
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Barry Warsaw <barry@python.org>
parents: 4600
diff changeset
589 static PyObject *
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Neal Norwitz <nnorwitz@gmail.com>
parents: 21313
diff changeset
590 thread_get_ident(PyObject *self)
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591 {
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parents: 1418
diff changeset
592 long ident;
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parents: 9588
diff changeset
593 ident = PyThread_get_thread_ident();
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parents: 1418
diff changeset
594 if (ident == -1) {
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diff changeset
595 PyErr_SetString(ThreadError, "no current thread ident");
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596 return NULL;
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diff changeset
597 }
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parents: 43855
diff changeset
598 return PyLong_FromLong(ident);
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599 }
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parents: 1418
diff changeset
600
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Martin v. Löwis <martin@v.loewis.de>
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diff changeset
601 PyDoc_STRVAR(get_ident_doc,
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parents: 8433
diff changeset
602 "get_ident() -> integer\n\
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Guido van Rossum <guido@python.org>
parents: 8433
diff changeset
603 \n\
ff9adb57b8b5 Added doc strings. Also export LockType from the modoule, and give it
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parents: 8433
diff changeset
604 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
605 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
606 This may be used to identify per-thread resources.\n\
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Guido van Rossum <guido@python.org>
parents: 8433
diff changeset
607 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
608 allocated consecutive numbers starting at 1, this behavior should not\n\
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Guido van Rossum <guido@python.org>
parents: 8433
diff changeset
609 be relied upon, and the number should be seen purely as a magic cookie.\n\
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parents: 22865
diff changeset
610 A thread's identity may be reused for another thread after it exits.");
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Guido van Rossum <guido@python.org>
parents: 8433
diff changeset
611
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612 static PyObject *
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diff changeset
613 thread_stack_size(PyObject *self, PyObject *args)
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614 {
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diff changeset
615 size_t old_size;
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616 Py_ssize_t new_size = 0;
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617 int rc;
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618
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diff changeset
619 if (!PyArg_ParseTuple(args, "|n:stack_size", &new_size))
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620 return NULL;
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621
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622 if (new_size < 0) {
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623 PyErr_SetString(PyExc_ValueError,
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624 "size must be 0 or a positive value");
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diff changeset
625 return NULL;
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626 }
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627
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diff changeset
628 old_size = PyThread_get_stacksize();
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629
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630 rc = PyThread_set_stacksize((size_t) new_size);
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parents: 38669
diff changeset
631 if (rc == -1) {
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632 PyErr_Format(PyExc_ValueError,
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633 "size not valid: %zd bytes",
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diff changeset
634 new_size);
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635 return NULL;
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636 }
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637 if (rc == -2) {
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parents: 38669
diff changeset
638 PyErr_SetString(ThreadError,
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diff changeset
639 "setting stack size not supported");
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parents: 38669
diff changeset
640 return NULL;
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641 }
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642
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Christian Heimes <christian@cheimes.de>
parents: 43855
diff changeset
643 return PyLong_FromSsize_t((Py_ssize_t) old_size);
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644 }
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645
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646 PyDoc_STRVAR(stack_size_doc,
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diff changeset
647 "stack_size([size]) -> size\n\
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648 \n\
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diff changeset
649 Return the thread stack size used when creating new threads. The\n\
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parents: 38669
diff changeset
650 optional size argument specifies the stack size (in bytes) to be used\n\
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diff changeset
651 for subsequently created threads, and must be 0 (use platform or\n\
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diff changeset
652 configured default) or a positive integer value of at least 32,768 (32k).\n\
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diff changeset
653 If changing the thread stack size is unsupported, a ThreadError\n\
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diff changeset
654 exception is raised. If the specified size is invalid, a ValueError\n\
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655 exception is raised, and the stack size is unmodified. 32k bytes\n\
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diff changeset
656 currently the minimum supported stack size value to guarantee\n\
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657 sufficient stack space for the interpreter itself.\n\
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658 \n\
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659 Note that some platforms may have particular restrictions on values for\n\
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660 the stack size, such as requiring a minimum stack size larger than 32kB or\n\
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661 requiring allocation in multiples of the system memory page size\n\
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662 - platform documentation should be referred to for more information\n\
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663 (4kB pages are common; using multiples of 4096 for the stack size is\n\
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664 the suggested approach in the absence of more specific information).");
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665
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666 static PyMethodDef thread_methods[] = {
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parents: 13651
diff changeset
667 {"start_new_thread", (PyCFunction)thread_PyThread_start_new_thread,
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parents: 13651
diff changeset
668 METH_VARARGS,
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diff changeset
669 start_new_doc},
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parents: 13651
diff changeset
670 {"start_new", (PyCFunction)thread_PyThread_start_new_thread,
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diff changeset
671 METH_VARARGS,
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672 start_new_doc},
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673 {"allocate_lock", (PyCFunction)thread_PyThread_allocate_lock,
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parents: 21313
diff changeset
674 METH_NOARGS, allocate_doc},
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Andrew M. Kuchling <amk@amk.ca>
parents: 13817
diff changeset
675 {"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
676 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
677 {"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
678 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
679 {"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
680 METH_NOARGS, exit_doc},
29498
1402f265e48f Correct function name.
Kurt B. Kaiser <kbk@shore.net>
parents: 29444
diff changeset
681 {"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
682 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
683 {"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
684 METH_NOARGS, get_ident_doc},
39442
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from
Thomas Wouters <thomas@python.org>
parents: 38669
diff changeset
685 {"stack_size", (PyCFunction)thread_stack_size,
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from
Thomas Wouters <thomas@python.org>
parents: 38669
diff changeset
686 METH_VARARGS,
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from
Thomas Wouters <thomas@python.org>
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diff changeset
687 stack_size_doc},
1746
1940892d2fe3 Merge alpha100 branch back to main trunk
Guido van Rossum <guido@python.org>
parents: 1418
diff changeset
688 #ifndef NO_EXIT_PROG
22709
3aa4bf7ac31e Remove METH_OLDARGS:
Neal Norwitz <nnorwitz@gmail.com>
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diff changeset
689 {"exit_prog", (PyCFunction)thread_PyThread_exit_prog,
3aa4bf7ac31e Remove METH_OLDARGS:
Neal Norwitz <nnorwitz@gmail.com>
parents: 22584
diff changeset
690 METH_VARARGS},
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Guido van Rossum <guido@python.org>
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diff changeset
691 #endif
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692 {NULL, NULL} /* sentinel */
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Guido van Rossum <guido@python.org>
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693 };
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Guido van Rossum <guido@python.org>
parents:
diff changeset
694
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Guido van Rossum <guido@python.org>
parents:
diff changeset
695
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
696 /* Initialization function */
72aceed365d4 * Makefile adapted to changes below.
Guido van Rossum <guido@python.org>
parents:
diff changeset
697
23832
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Martin v. Löwis <martin@v.loewis.de>
parents: 22865
diff changeset
698 PyDoc_STRVAR(thread_doc,
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ff9adb57b8b5 Added doc strings. Also export LockType from the modoule, and give it
Guido van Rossum <guido@python.org>
parents: 8433
diff changeset
699 "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
700 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
701
23832
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Martin v. Löwis <martin@v.loewis.de>
parents: 22865
diff changeset
702 PyDoc_STRVAR(lock_doc,
8562
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Guido van Rossum <guido@python.org>
parents: 8433
diff changeset
703 "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
704 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
705 \n\
ff9adb57b8b5 Added doc strings. Also export LockType from the modoule, and give it
Guido van Rossum <guido@python.org>
parents: 8433
diff changeset
706 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
707 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
708 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
709 \n\
ff9adb57b8b5 Added doc strings. Also export LockType from the modoule, and give it
Guido van Rossum <guido@python.org>
parents: 8433
diff changeset
710 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
711 unlock it. A thread attempting to lock a lock that it has already locked\n\
23832
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Martin v. Löwis <martin@v.loewis.de>
parents: 22865
diff changeset
712 will block until another thread unlocks it. Deadlocks may ensue.");
8562
ff9adb57b8b5 Added doc strings. Also export LockType from the modoule, and give it
Guido van Rossum <guido@python.org>
parents: 8433
diff changeset
713
47580
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Martin v. Löwis <martin@v.loewis.de>
parents: 47285
diff changeset
714 static struct PyModuleDef threadmodule = {
94f64f11fdd0 Implement PEP 3121: new module initialization and finalization API.
Martin v. Löwis <martin@v.loewis.de>
parents: 47285
diff changeset
715 PyModuleDef_HEAD_INIT,
94f64f11fdd0 Implement PEP 3121: new module initialization and finalization API.
Martin v. Löwis <martin@v.loewis.de>
parents: 47285
diff changeset
716 "_thread",
94f64f11fdd0 Implement PEP 3121: new module initialization and finalization API.
Martin v. Löwis <martin@v.loewis.de>
parents: 47285
diff changeset
717 thread_doc,
94f64f11fdd0 Implement PEP 3121: new module initialization and finalization API.
Martin v. Löwis <martin@v.loewis.de>
parents: 47285
diff changeset
718 -1,
94f64f11fdd0 Implement PEP 3121: new module initialization and finalization API.
Martin v. Löwis <martin@v.loewis.de>
parents: 47285
diff changeset
719 thread_methods,
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Martin v. Löwis <martin@v.loewis.de>
parents: 47285
diff changeset
720 NULL,
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Martin v. Löwis <martin@v.loewis.de>
parents: 47285
diff changeset
721 NULL,
94f64f11fdd0 Implement PEP 3121: new module initialization and finalization API.
Martin v. Löwis <martin@v.loewis.de>
parents: 47285
diff changeset
722 NULL,
94f64f11fdd0 Implement PEP 3121: new module initialization and finalization API.
Martin v. Löwis <martin@v.loewis.de>
parents: 47285
diff changeset
723 NULL
94f64f11fdd0 Implement PEP 3121: new module initialization and finalization API.
Martin v. Löwis <martin@v.loewis.de>
parents: 47285
diff changeset
724 };
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Martin v. Löwis <martin@v.loewis.de>
parents: 47285
diff changeset
725
94f64f11fdd0 Implement PEP 3121: new module initialization and finalization API.
Martin v. Löwis <martin@v.loewis.de>
parents: 47285
diff changeset
726
24471
f66b3a3509c7 Excise DL_EXPORT/DL_IMPORT from Modules/*. Required adding a prototype
Mark Hammond <mhammond@skippinet.com.au>
parents: 24280
diff changeset
727 PyMODINIT_FUNC
47580
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Martin v. Löwis <martin@v.loewis.de>
parents: 47285
diff changeset
728 PyInit__thread(void)
923
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Guido van Rossum <guido@python.org>
parents:
diff changeset
729 {
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Barry Warsaw <barry@python.org>
parents: 4600
diff changeset
730 PyObject *m, *d;
35086
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Michael W. Hudson <mwh@python.net>
parents: 35085
diff changeset
731
c6b7fadf0ada Consistently use hard tabs for indentation.
Michael W. Hudson <mwh@python.net>
parents: 35085
diff changeset
732 /* Initialize types: */
c6b7fadf0ada Consistently use hard tabs for indentation.
Michael W. Hudson <mwh@python.net>
parents: 35085
diff changeset
733 if (PyType_Ready(&localtype) < 0)
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diff changeset
734 return NULL;
39644
13d5e5f0e993 Restructure comparison dramatically. There is no longer a default
Guido van Rossum <guido@python.org>
parents: 39442
diff changeset
735 if (PyType_Ready(&Locktype) < 0)
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diff changeset
736 return NULL;
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737
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diff changeset
738 /* Create the module and add the functions */
47580
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Martin v. Löwis <martin@v.loewis.de>
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diff changeset
739 m = PyModule_Create(&threadmodule);
36324
1af7f719ed28 Check return result from Py_InitModule*(). This API can fail.
Neal Norwitz <nnorwitz@gmail.com>
parents: 35117
diff changeset
740 if (m == NULL)
47580
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diff changeset
741 return NULL;
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diff changeset
742
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parents:
diff changeset
743 /* Add a symbolic constant */
4751
7ab835f87f86 Renamed.
Barry Warsaw <barry@python.org>
parents: 4600
diff changeset
744 d = PyModule_GetDict(m);
47266
7fe3a8648ce2 Rename thread to _thread and dummy_thread to _dummy_thread. Issue #2875.
Georg Brandl <georg@python.org>
parents: 44351
diff changeset
745 ThreadError = PyErr_NewException("_thread.error", NULL, NULL);
4751
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Barry Warsaw <barry@python.org>
parents: 4600
diff changeset
746 PyDict_SetItemString(d, "error", ThreadError);
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parents: 8433
diff changeset
747 Locktype.tp_doc = lock_doc;
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Guido van Rossum <guido@python.org>
parents: 8433
diff changeset
748 Py_INCREF(&Locktype);
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parents: 8433
diff changeset
749 PyDict_SetItemString(d, "LockType", (PyObject *)&Locktype);
923
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parents:
diff changeset
750
35085
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Michael W. Hudson <mwh@python.net>
parents: 34998
diff changeset
751 Py_INCREF(&localtype);
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Michael W. Hudson <mwh@python.net>
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diff changeset
752 if (PyModule_AddObject(m, "_local", (PyObject *)&localtype) < 0)
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Martin v. Löwis <martin@v.loewis.de>
parents: 47285
diff changeset
753 return NULL;
32673
97768d87394a Implemented thread-local data as proposed on python-dev:
Jim Fulton <jim@zope.com>
parents: 31797
diff changeset
754
923
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Guido van Rossum <guido@python.org>
parents:
diff changeset
755 /* Initialize the C thread library */
9679
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Guido van Rossum <guido@python.org>
parents: 9588
diff changeset
756 PyThread_init_thread();
47580
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diff changeset
757 return m;
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758 }