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Unified Diff: Python/thread_wince.h

Issue 10639: reindent.py converts newlines to platform default
Patch Set: Created 8 years, 10 months ago
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/Python/thread_wince.h Mon Jul 25 09:47:18 2011 -0400
@@ -0,0 +1,136 @@
+
+/* 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();
+}
+
+void PyThread_exit_thread(void)
+{
+ dprintf(("%ld: PyThread_exit_thread called\n", PyThread_get_thread_ident()));
+ if (!initialized)
+ exit(0);
+ _endthread();
+}
+
+/*
+ * 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()));
+}
+
+
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