Mercurial > cpython-lru_cache-weakref
annotate Python/thread_lwp.h @ 41642:a6eb6acfe04a
Merged revisions 55007-55179 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/p3yk
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r55077 | guido.van.rossum | 2007-05-02 11:54:37 -0700 (Wed, 02 May 2007) | 2 lines
Use the new print syntax, at least.
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r55142 | fred.drake | 2007-05-04 21:27:30 -0700 (Fri, 04 May 2007) | 1 line
remove old cruftiness
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r55143 | fred.drake | 2007-05-04 21:52:16 -0700 (Fri, 04 May 2007) | 1 line
make this work with the new Python
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r55162 | neal.norwitz | 2007-05-06 22:29:18 -0700 (Sun, 06 May 2007) | 1 line
Get asdl code gen working with Python 2.3. Should continue to work with 3.0
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r55164 | neal.norwitz | 2007-05-07 00:00:38 -0700 (Mon, 07 May 2007) | 1 line
Verify checkins to p3yk (sic) branch go to 3000 list.
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r55166 | neal.norwitz | 2007-05-07 00:12:35 -0700 (Mon, 07 May 2007) | 1 line
Fix this test so it runs again by importing warnings_test properly.
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r55167 | neal.norwitz | 2007-05-07 01:03:22 -0700 (Mon, 07 May 2007) | 8 lines
So long xrange. range() now supports values that are outside
-sys.maxint to sys.maxint. floats raise a TypeError.
This has been sitting for a long time. It probably has some problems and
needs cleanup. Objects/rangeobject.c now uses 4-space indents since
it is almost completely new.
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r55171 | guido.van.rossum | 2007-05-07 10:21:26 -0700 (Mon, 07 May 2007) | 4 lines
Fix two tests that were previously depending on significant spaces
at the end of a line (and before that on Python 2.x print behavior
that has no exact equivalent in 3.0).
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| author | Guido van Rossum <guido@python.org> |
|---|---|
| date | Mon, 07 May 2007 22:24:25 +0000 |
| parents | 8b116a8449bd |
| children | e38335d4df91 df5719c298db |
| rev | line source |
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1 |
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2 #include <stdlib.h> |
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3 #include <lwp/lwp.h> |
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4 #include <lwp/stackdep.h> |
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5 |
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6 #define STACKSIZE 1000 /* stacksize for a thread */ |
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7 #define NSTACKS 2 /* # stacks to be put in cache initially */ |
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8 |
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9 struct lock { |
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10 int lock_locked; |
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11 cv_t lock_condvar; |
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12 mon_t lock_monitor; |
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13 }; |
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15 |
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16 /* |
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17 * Initialization. |
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18 */ |
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19 static void PyThread__init_thread(void) |
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20 { |
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21 lwp_setstkcache(STACKSIZE, NSTACKS); |
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22 } |
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23 |
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24 /* |
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25 * Thread support. |
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26 */ |
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29 long PyThread_start_new_thread(void (*func)(void *), void *arg) |
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30 { |
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31 thread_t tid; |
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32 int success; |
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33 dprintf(("PyThread_start_new_thread called\n")); |
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34 if (!initialized) |
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35 PyThread_init_thread(); |
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36 success = lwp_create(&tid, func, MINPRIO, 0, lwp_newstk(), 1, arg); |
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37 return success < 0 ? -1 : 0; |
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38 } |
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39 |
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40 long PyThread_get_thread_ident(void) |
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41 { |
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42 thread_t tid; |
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43 if (!initialized) |
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44 PyThread_init_thread(); |
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45 if (lwp_self(&tid) < 0) |
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46 return -1; |
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47 return tid.thread_id; |
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48 } |
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49 |
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50 static void do_PyThread_exit_thread(int no_cleanup) |
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51 { |
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52 dprintf(("PyThread_exit_thread called\n")); |
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53 if (!initialized) |
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54 if (no_cleanup) |
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55 _exit(0); |
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56 else |
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57 exit(0); |
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58 lwp_destroy(SELF); |
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59 } |
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60 |
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61 void PyThread_exit_thread(void) |
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62 { |
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63 do_PyThread_exit_thread(0); |
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64 } |
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65 |
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66 void PyThread__exit_thread(void) |
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67 { |
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68 do_PyThread_exit_thread(1); |
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69 } |
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70 |
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71 #ifndef NO_EXIT_PROG |
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72 static void do_PyThread_exit_prog(int status, int no_cleanup) |
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73 { |
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74 dprintf(("PyThread_exit_prog(%d) called\n", status)); |
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75 if (!initialized) |
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76 if (no_cleanup) |
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77 _exit(status); |
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78 else |
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79 exit(status); |
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80 pod_exit(status); |
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81 } |
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82 |
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83 void PyThread_exit_prog(int status) |
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84 { |
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85 do_PyThread_exit_prog(status, 0); |
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86 } |
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87 |
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88 void PyThread__exit_prog(int status) |
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89 { |
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90 do_PyThread_exit_prog(status, 1); |
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91 } |
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92 #endif /* NO_EXIT_PROG */ |
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93 |
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94 /* |
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95 * Lock support. |
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96 */ |
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97 PyThread_type_lock PyThread_allocate_lock(void) |
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98 { |
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99 struct lock *lock; |
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100 extern char *malloc(size_t); |
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101 |
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102 dprintf(("PyThread_allocate_lock called\n")); |
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103 if (!initialized) |
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104 PyThread_init_thread(); |
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106 lock = (struct lock *) malloc(sizeof(struct lock)); |
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107 lock->lock_locked = 0; |
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108 (void) mon_create(&lock->lock_monitor); |
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109 (void) cv_create(&lock->lock_condvar, lock->lock_monitor); |
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110 dprintf(("PyThread_allocate_lock() -> %p\n", lock)); |
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111 return (PyThread_type_lock) lock; |
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112 } |
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113 |
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114 void PyThread_free_lock(PyThread_type_lock lock) |
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115 { |
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116 dprintf(("PyThread_free_lock(%p) called\n", lock)); |
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117 mon_destroy(((struct lock *) lock)->lock_monitor); |
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118 free((char *) lock); |
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119 } |
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120 |
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121 int PyThread_acquire_lock(PyThread_type_lock lock, int waitflag) |
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122 { |
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123 int success; |
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124 |
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125 dprintf(("PyThread_acquire_lock(%p, %d) called\n", lock, waitflag)); |
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126 success = 0; |
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127 |
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128 (void) mon_enter(((struct lock *) lock)->lock_monitor); |
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129 if (waitflag) |
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130 while (((struct lock *) lock)->lock_locked) |
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131 cv_wait(((struct lock *) lock)->lock_condvar); |
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132 if (!((struct lock *) lock)->lock_locked) { |
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133 success = 1; |
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134 ((struct lock *) lock)->lock_locked = 1; |
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135 } |
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136 cv_broadcast(((struct lock *) lock)->lock_condvar); |
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137 mon_exit(((struct lock *) lock)->lock_monitor); |
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138 dprintf(("PyThread_acquire_lock(%p, %d) -> %d\n", lock, waitflag, success)); |
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139 return success; |
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140 } |
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141 |
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142 void PyThread_release_lock(PyThread_type_lock lock) |
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143 { |
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144 dprintf(("PyThread_release_lock(%p) called\n", lock)); |
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145 (void) mon_enter(((struct lock *) lock)->lock_monitor); |
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146 ((struct lock *) lock)->lock_locked = 0; |
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147 cv_broadcast(((struct lock *) lock)->lock_condvar); |
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148 mon_exit(((struct lock *) lock)->lock_monitor); |
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149 } |
