view Python/thread_foobar.h @ 87690:66c1c9f32567 default tip

Add use_weakref option to functools.lru_cache The use_weakref option makes lru_cache create weak references to the function arguments when creating the cache key, which prevents them from staying in the memory forever even after all other references to them are gone. This is a proof of concept for http://bugs.python.org/issue19859
author Radomir Dopieralski <devel@sheep.art.pl>
date Tue, 03 Dec 2013 16:02:48 +0100
parents b36cb4602e21
children
line wrap: on
line source


/*
 * 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));
}