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