86 lines
2.0 KiB
C
86 lines
2.0 KiB
C
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/**
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* WinPR: Windows Portable Runtime
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* APC implementation
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*
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* Copyright 2021 David Fort <contact@hardening-consulting.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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#ifndef WINPR_APC_H
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#define WINPR_APC_H
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#include <winpr/winpr.h>
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#include <winpr/wtypes.h>
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#ifndef _WIN32
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#include <pthread.h>
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typedef struct winpr_thread WINPR_THREAD;
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typedef struct winpr_APC_item WINPR_APC_ITEM;
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typedef struct winpr_poll_set WINPR_POLL_SET;
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typedef void (*apc_treatment)(LPVOID arg);
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typedef enum
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{
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APC_TYPE_USER,
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APC_TYPE_TIMER,
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APC_TYPE_HANDLE_FREE
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} ApcType;
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struct winpr_APC_item
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{
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ApcType type;
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int pollFd;
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DWORD pollMode;
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apc_treatment completion;
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LPVOID completionArgs;
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BOOL markedForFree;
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/* private fields used by the APC */
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BOOL alwaysSignaled;
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BOOL isSignaled;
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DWORD boundThread;
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BOOL linked;
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BOOL markedForRemove;
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WINPR_APC_ITEM *last, *next;
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};
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typedef enum
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{
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APC_REMOVE_OK,
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APC_REMOVE_ERROR,
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APC_REMOVE_DELAY_FREE
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} APC_REMOVE_RESULT;
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typedef struct
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{
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pthread_mutex_t mutex;
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DWORD length;
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WINPR_APC_ITEM *head, *tail;
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BOOL treatingCompletions;
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} APC_QUEUE;
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BOOL apc_init(APC_QUEUE* apc);
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BOOL apc_uninit(APC_QUEUE* apc);
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void apc_register(WINPR_THREAD* thread, WINPR_APC_ITEM* addItem);
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APC_REMOVE_RESULT apc_remove(WINPR_APC_ITEM* item);
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BOOL apc_collectFds(WINPR_THREAD* thread, WINPR_POLL_SET* set, BOOL* haveAutoSignaled);
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int apc_executeCompletions(WINPR_THREAD* thread, WINPR_POLL_SET* set, size_t startIndex);
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void apc_cleanupThread(WINPR_THREAD* thread);
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#endif
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#endif /* WINPR_APC_H */
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