https://github.com/python/cpython
Tip revision: 74f4bd53e03ded8408bcc2de67cf0f5a4ac5b1a1 authored by Barry Warsaw on 23 February 2012, 15:59:38 UTC
Bump some more copyright years (as per PEP 101), since this is the first
Bump some more copyright years (as per PEP 101), since this is the first
Tip revision: 74f4bd5
thread_wince.h
/* This code implemented by Mark Hammond (MHammond@skippinet.com.au) */
#include <windows.h>
#include <limits.h>
#include <pydebug.h>
long PyThread_get_thread_ident(void);
/*
* Change all headers to pure ANSI as no one will use K&R style on an
* NT
*/
/*
* Initialization of the C package, should not be needed.
*/
static void PyThread__init_thread(void)
{
}
/*
* Thread support.
*/
long PyThread_start_new_thread(void (*func)(void *), void *arg)
{
long rv;
int success = -1;
dprintf(("%ld: PyThread_start_new_thread called\n", PyThread_get_thread_ident()));
if (!initialized)
PyThread_init_thread();
rv = _beginthread(func, 0, arg); /* use default stack size */
if (rv != -1) {
success = 0;
dprintf(("%ld: PyThread_start_new_thread succeeded:\n", PyThread_get_thread_ident()));
}
return success;
}
/*
* Return the thread Id instead of an handle. The Id is said to uniquely identify the
* thread in the system
*/
long PyThread_get_thread_ident(void)
{
if (!initialized)
PyThread_init_thread();
return GetCurrentThreadId();
}
static void do_PyThread_exit_thread(int no_cleanup)
{
dprintf(("%ld: do_PyThread_exit_thread called\n", PyThread_get_thread_ident()));
if (!initialized)
if (no_cleanup)
exit(0); /* XXX - was _exit()!! */
else
exit(0);
_endthread();
}
void PyThread_exit_thread(void)
{
do_PyThread_exit_thread(0);
}
void PyThread__exit_thread(void)
{
do_PyThread_exit_thread(1);
}
#ifndef NO_EXIT_PROG
static void do_PyThread_exit_prog(int status, int no_cleanup)
{
dprintf(("PyThread_exit_prog(%d) called\n", status));
if (!initialized)
if (no_cleanup)
_exit(status);
else
exit(status);
}
void PyThread_exit_prog(int status)
{
do_PyThread_exit_prog(status, 0);
}
void PyThread__exit_prog(int status)
{
do_PyThread_exit_prog(status, 1);
}
#endif /* NO_EXIT_PROG */
/*
* Lock support. It has to be implemented using Mutexes, as
* CE doesnt support semaphores. Therefore we use some hacks to
* simulate the non reentrant requirements of Python locks
*/
PyThread_type_lock PyThread_allocate_lock(void)
{
HANDLE aLock;
dprintf(("PyThread_allocate_lock called\n"));
if (!initialized)
PyThread_init_thread();
aLock = CreateEvent(NULL, /* Security attributes */
0, /* Manual-Reset */
1, /* Is initially signalled */
NULL); /* Name of event */
dprintf(("%ld: PyThread_allocate_lock() -> %p\n", PyThread_get_thread_ident(), aLock));
return (PyThread_type_lock) aLock;
}
void PyThread_free_lock(PyThread_type_lock aLock)
{
dprintf(("%ld: PyThread_free_lock(%p) called\n", PyThread_get_thread_ident(),aLock));
CloseHandle(aLock);
}
/*
* Return 1 on success if the lock was acquired
*
* and 0 if the lock was not acquired. This means a 0 is returned
* if the lock has already been acquired by this thread!
*/
int PyThread_acquire_lock(PyThread_type_lock aLock, int waitflag)
{
int success = 1;
DWORD waitResult;
dprintf(("%ld: PyThread_acquire_lock(%p, %d) called\n", PyThread_get_thread_ident(),aLock, waitflag));
#ifndef DEBUG
waitResult = WaitForSingleObject(aLock, (waitflag ? INFINITE : 0));
#else
/* To aid in debugging, we regularly wake up. This allows us to
break into the debugger */
while (TRUE) {
waitResult = WaitForSingleObject(aLock, waitflag ? 3000 : 0);
if (waitflag==0 || (waitflag && waitResult == WAIT_OBJECT_0))
break;
}
#endif
if (waitResult != WAIT_OBJECT_0) {
success = 0; /* We failed */
}
dprintf(("%ld: PyThread_acquire_lock(%p, %d) -> %d\n", PyThread_get_thread_ident(),aLock, waitflag, success));
return success;
}
void PyThread_release_lock(PyThread_type_lock aLock)
{
dprintf(("%ld: PyThread_release_lock(%p) called\n", PyThread_get_thread_ident(),aLock));
if (!SetEvent(aLock))
dprintf(("%ld: Could not PyThread_release_lock(%p) error: %l\n", PyThread_get_thread_ident(), aLock, GetLastError()));
}