FreeRDP/winpr/libwinpr/pool/callback_cleanup.c

135 lines
3.7 KiB
C

/**
* WinPR: Windows Portable Runtime
* Thread Pool API (Callback Clean-up)
*
* Copyright 2012 Marc-Andre Moreau <marcandre.moreau@gmail.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <winpr/crt.h>
#include <winpr/pool.h>
#include "pool.h"
#ifdef _WIN32
static BOOL module_initialized = FALSE;
static BOOL module_available = FALSE;
static HMODULE kernel32_module = NULL;
static VOID (WINAPI * pSetEventWhenCallbackReturns)(PTP_CALLBACK_INSTANCE pci, HANDLE evt);
static VOID (WINAPI * pReleaseSemaphoreWhenCallbackReturns)(PTP_CALLBACK_INSTANCE pci, HANDLE sem, DWORD crel);
static VOID (WINAPI * pReleaseMutexWhenCallbackReturns)(PTP_CALLBACK_INSTANCE pci, HANDLE mut);
static VOID (WINAPI * pLeaveCriticalSectionWhenCallbackReturns)(PTP_CALLBACK_INSTANCE pci, PCRITICAL_SECTION pcs);
static VOID (WINAPI * pFreeLibraryWhenCallbackReturns)(PTP_CALLBACK_INSTANCE pci, HMODULE mod);
static VOID (WINAPI * pDisassociateCurrentThreadFromCallback)(PTP_CALLBACK_INSTANCE pci);
static void module_init()
{
if (module_initialized)
return;
kernel32_module = LoadLibraryA("kernel32.dll");
module_initialized = TRUE;
if (!kernel32_module)
return;
module_available = TRUE;
pSetEventWhenCallbackReturns = (void*) GetProcAddress(kernel32_module, "SetEventWhenCallbackReturns");
pReleaseSemaphoreWhenCallbackReturns = (void*) GetProcAddress(kernel32_module, "ReleaseSemaphoreWhenCallbackReturns");
pReleaseMutexWhenCallbackReturns = (void*) GetProcAddress(kernel32_module, "ReleaseMutexWhenCallbackReturns");
pLeaveCriticalSectionWhenCallbackReturns = (void*) GetProcAddress(kernel32_module, "LeaveCriticalSectionWhenCallbackReturns");
pFreeLibraryWhenCallbackReturns = (void*) GetProcAddress(kernel32_module, "FreeLibraryWhenCallbackReturns");
pDisassociateCurrentThreadFromCallback = (void*) GetProcAddress(kernel32_module, "DisassociateCurrentThreadFromCallback");
}
#endif
#ifdef WINPR_THREAD_POOL
VOID SetEventWhenCallbackReturns(PTP_CALLBACK_INSTANCE pci, HANDLE evt)
{
#ifdef _WIN32
module_init();
if (pSetEventWhenCallbackReturns)
pSetEventWhenCallbackReturns(pci, evt);
#else
#endif
}
VOID ReleaseSemaphoreWhenCallbackReturns(PTP_CALLBACK_INSTANCE pci, HANDLE sem, DWORD crel)
{
#ifdef _WIN32
module_init();
if (pReleaseSemaphoreWhenCallbackReturns)
pReleaseSemaphoreWhenCallbackReturns(pci, sem, crel);
#else
#endif
}
VOID ReleaseMutexWhenCallbackReturns(PTP_CALLBACK_INSTANCE pci, HANDLE mut)
{
#ifdef _WIN32
module_init();
if (pReleaseMutexWhenCallbackReturns)
pReleaseMutexWhenCallbackReturns(pci, mut);
#else
#endif
}
VOID LeaveCriticalSectionWhenCallbackReturns(PTP_CALLBACK_INSTANCE pci, PCRITICAL_SECTION pcs)
{
#ifdef _WIN32
module_init();
if (pLeaveCriticalSectionWhenCallbackReturns)
pLeaveCriticalSectionWhenCallbackReturns(pci, pcs);
#else
#endif
}
VOID FreeLibraryWhenCallbackReturns(PTP_CALLBACK_INSTANCE pci, HMODULE mod)
{
#ifdef _WIN32
module_init();
if (pFreeLibraryWhenCallbackReturns)
pFreeLibraryWhenCallbackReturns(pci, mod);
#else
#endif
}
VOID DisassociateCurrentThreadFromCallback(PTP_CALLBACK_INSTANCE pci)
{
#ifdef _WIN32
module_init();
if (pDisassociateCurrentThreadFromCallback)
pDisassociateCurrentThreadFromCallback(pci);
#else
#endif
}
#endif