Imported Upstream version 0.13.2+dsfg1

libobs/util/threading-windows.c

@@ -0,0 +1,191 @@
+/*
+ * Copyright (c) 2014 Hugh Bailey <obs.jim@gmail.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "bmem.h"
+#include "threading.h"
+
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+
+#ifdef __MINGW32__
+#include <excpt.h>
+#ifndef TRYLEVEL_NONE
+#ifndef __MINGW64__
+#define NO_SEH_MINGW
+#endif
+#ifndef __try
+#define __try
+#endif
+#ifndef __except
+#define __except(x) if (0)
+#endif
+#endif
+#endif
+
+int os_event_init(os_event_t **event, enum os_event_type type)
+{
+	HANDLE handle;
+
+	handle = CreateEvent(NULL, (type == OS_EVENT_TYPE_MANUAL), FALSE, NULL);
+	if (!handle)
+		return -1;
+
+	*event = (os_event_t*)handle;
+	return 0;
+}
+
+void os_event_destroy(os_event_t *event)
+{
+	if (event)
+		CloseHandle((HANDLE)event);
+}
+
+int os_event_wait(os_event_t *event)
+{
+	DWORD code;
+
+	if (!event)
+		return EINVAL;
+
+	code = WaitForSingleObject((HANDLE)event, INFINITE);
+	if (code != WAIT_OBJECT_0)
+		return EINVAL;
+
+	return 0;
+}
+
+int os_event_timedwait(os_event_t *event, unsigned long milliseconds)
+{
+	DWORD code;
+
+	if (!event)
+		return EINVAL;
+
+	code = WaitForSingleObject((HANDLE)event, milliseconds);
+	if (code == WAIT_TIMEOUT)
+		return ETIMEDOUT;
+	else if (code != WAIT_OBJECT_0)
+		return EINVAL;
+
+	return 0;
+}
+
+int os_event_try(os_event_t *event)
+{
+	DWORD code;
+
+	if (!event)
+		return EINVAL;
+
+	code = WaitForSingleObject((HANDLE)event, 0);
+	if (code == WAIT_TIMEOUT)
+		return EAGAIN;
+	else if (code != WAIT_OBJECT_0)
+		return EINVAL;
+
+	return 0;
+}
+
+int os_event_signal(os_event_t *event)
+{
+	if (!event)
+		return EINVAL;
+
+	if (!SetEvent((HANDLE)event))
+		return EINVAL;
+
+	return 0;
+}
+
+void os_event_reset(os_event_t *event)
+{
+	if (!event)
+		return;
+
+	ResetEvent((HANDLE)event);
+}
+
+int  os_sem_init(os_sem_t **sem, int value)
+{
+	HANDLE handle = CreateSemaphore(NULL, (LONG)value, 0x7FFFFFFF, NULL);
+	if (!handle)
+		return -1;
+
+	*sem = (os_sem_t*)handle;
+	return 0;
+}
+
+void os_sem_destroy(os_sem_t *sem)
+{
+	if (sem)
+		CloseHandle((HANDLE)sem);
+}
+
+int  os_sem_post(os_sem_t *sem)
+{
+	if (!sem) return -1;
+	return ReleaseSemaphore((HANDLE)sem, 1, NULL) ? 0 : -1;
+}
+
+int  os_sem_wait(os_sem_t *sem)
+{
+	DWORD ret;
+
+	if (!sem) return -1;
+	ret = WaitForSingleObject((HANDLE)sem, INFINITE);
+	return (ret == WAIT_OBJECT_0) ? 0 : -1;
+}
+
+#define VC_EXCEPTION 0x406D1388
+
+#pragma pack(push,8)
+struct vs_threadname_info {
+	DWORD type; /* 0x1000 */
+	const char *name;
+	DWORD thread_id;
+	DWORD flags;
+};
+#pragma pack(pop)
+
+#define THREADNAME_INFO_SIZE \
+	(sizeof(struct vs_threadname_info) / sizeof(ULONG_PTR))
+
+void os_set_thread_name(const char *name)
+{
+#ifdef __MINGW32__
+	UNUSED_PARAMETER(name);
+#else
+	struct vs_threadname_info info;
+	info.type = 0x1000;
+	info.name = name;
+	info.thread_id = GetCurrentThreadId();
+	info.flags = 0;
+
+#ifdef NO_SEH_MINGW
+	__try1(EXCEPTION_EXECUTE_HANDLER) {
+#else
+	__try {
+#endif
+		RaiseException(VC_EXCEPTION, 0, THREADNAME_INFO_SIZE,
+				(ULONG_PTR*)&info);
+#ifdef NO_SEH_MINGW
+	} __except1 {
+#else
+	} __except(EXCEPTION_EXECUTE_HANDLER) {
+#endif
+	}
+#endif
+}