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