Mercurial > cpython-lru_cache-weakref
view Python/thread_foobar.h @ 78912:5aa1bc2f00ad
Issue #13992: The trashcan mechanism is now thread-safe. This eliminates
sporadic crashes in multi-thread programs when several long deallocator
chains ran concurrently and involved subclasses of built-in container
types.
Because of this change, a couple extension modules compiled for 3.2.4
(those which use the trashcan mechanism, despite it being undocumented)
will not be loadable by 3.2.3 and earlier. However, extension modules
compiled for 3.2.3 and earlier will be loadable by 3.2.4.
| author | Antoine Pitrou <solipsis@pitrou.net> |
|---|---|
| date | Thu, 06 Sep 2012 00:59:49 +0200 |
| parents | 3c9232a684ae |
| children |
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/* * Initialization. */ static void PyThread__init_thread(void) { } /* * Thread support. */ long PyThread_start_new_thread(void (*func)(void *), void *arg) { int success = 0; /* init not needed when SOLARIS_THREADS and */ /* C_THREADS implemented properly */ dprintf(("PyThread_start_new_thread called\n")); if (!initialized) PyThread_init_thread(); return success < 0 ? -1 : 0; } long PyThread_get_thread_ident(void) { if (!initialized) PyThread_init_thread(); } void PyThread_exit_thread(void) { dprintf(("PyThread_exit_thread called\n")); if (!initialized) exit(0); } /* * Lock support. */ PyThread_type_lock PyThread_allocate_lock(void) { dprintf(("PyThread_allocate_lock called\n")); if (!initialized) PyThread_init_thread(); dprintf(("PyThread_allocate_lock() -> %p\n", lock)); return (PyThread_type_lock) lock; } void PyThread_free_lock(PyThread_type_lock lock) { dprintf(("PyThread_free_lock(%p) called\n", lock)); } int PyThread_acquire_lock(PyThread_type_lock lock, int waitflag) { int success; dprintf(("PyThread_acquire_lock(%p, %d) called\n", lock, waitflag)); dprintf(("PyThread_acquire_lock(%p, %d) -> %d\n", lock, waitflag, success)); return success; } void PyThread_release_lock(PyThread_type_lock lock) { dprintf(("PyThread_release_lock(%p) called\n", lock)); }
