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/**
* WinPR: Windows Portable Runtime
* Thread Pool API (Clean-up Group)
*
* 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.
*/
#include <winpr/config.h>
#include <winpr/crt.h>
#include <winpr/pool.h>
#include <winpr/library.h>
#include "pool.h"
#ifdef WINPR_THREAD_POOL
#ifdef _WIN32
static INIT_ONCE init_once_module = INIT_ONCE_STATIC_INIT;
static PTP_CLEANUP_GROUP(WINAPI* pCreateThreadpoolCleanupGroup)();
static VOID(WINAPI* pCloseThreadpoolCleanupGroupMembers)(PTP_CLEANUP_GROUP ptpcg,
BOOL fCancelPendingCallbacks,
PVOID pvCleanupContext);
static VOID(WINAPI* pCloseThreadpoolCleanupGroup)(PTP_CLEANUP_GROUP ptpcg);
static BOOL CALLBACK init_module(PINIT_ONCE once, PVOID param, PVOID* context)
{
HMODULE kernel32 = LoadLibraryA("kernel32.dll");
if (kernel32)
{
pCreateThreadpoolCleanupGroup =
(void*)GetProcAddress(kernel32, "CreateThreadpoolCleanupGroup");
pCloseThreadpoolCleanupGroupMembers =
(void*)GetProcAddress(kernel32, "CloseThreadpoolCleanupGroupMembers");
pCloseThreadpoolCleanupGroup =
(void*)GetProcAddress(kernel32, "CloseThreadpoolCleanupGroup");
}
return TRUE;
}
#endif
PTP_CLEANUP_GROUP winpr_CreateThreadpoolCleanupGroup(void)
{
PTP_CLEANUP_GROUP cleanupGroup = NULL;
#ifdef _WIN32
InitOnceExecuteOnce(&init_once_module, init_module, NULL, NULL);
if (pCreateThreadpoolCleanupGroup)
return pCreateThreadpoolCleanupGroup();
return cleanupGroup;
#else
cleanupGroup = (PTP_CLEANUP_GROUP)calloc(1, sizeof(TP_CLEANUP_GROUP));
if (!cleanupGroup)
return NULL;
cleanupGroup->groups = ArrayList_New(FALSE);
if (!cleanupGroup->groups)
{
free(cleanupGroup);
return NULL;
}
return cleanupGroup;
#endif
}
VOID winpr_SetThreadpoolCallbackCleanupGroup(PTP_CALLBACK_ENVIRON pcbe, PTP_CLEANUP_GROUP ptpcg,
PTP_CLEANUP_GROUP_CANCEL_CALLBACK pfng)
{
pcbe->CleanupGroup = ptpcg;
pcbe->CleanupGroupCancelCallback = pfng;
#ifndef _WIN32
pcbe->CleanupGroup->env = pcbe;
#endif
}
VOID winpr_CloseThreadpoolCleanupGroupMembers(PTP_CLEANUP_GROUP ptpcg, BOOL fCancelPendingCallbacks,
PVOID pvCleanupContext)
{
#ifdef _WIN32
InitOnceExecuteOnce(&init_once_module, init_module, NULL, NULL);
if (pCloseThreadpoolCleanupGroupMembers)
{
pCloseThreadpoolCleanupGroupMembers(ptpcg, fCancelPendingCallbacks, pvCleanupContext);
return;
}
#else
while (ArrayList_Count(ptpcg->groups) > 0)
{
PTP_WORK work = ArrayList_GetItem(ptpcg->groups, 0);
winpr_CloseThreadpoolWork(work);
}
#endif
}
VOID winpr_CloseThreadpoolCleanupGroup(PTP_CLEANUP_GROUP ptpcg)
{
#ifdef _WIN32
InitOnceExecuteOnce(&init_once_module, init_module, NULL, NULL);
if (pCloseThreadpoolCleanupGroup)
{
pCloseThreadpoolCleanupGroup(ptpcg);
return;
}
#else
if (ptpcg && ptpcg->groups)
ArrayList_Free(ptpcg->groups);
if (ptpcg && ptpcg->env)
ptpcg->env->CleanupGroup = NULL;
free(ptpcg);
#endif
}
#endif /* WINPR_THREAD_POOL defined */
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