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92 lines
2.4 KiB
92 lines
2.4 KiB
/* |
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* Copyright (C) 2006 The Android Open Source Project |
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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 __FDEVENT_H |
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#define __FDEVENT_H |
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#include <stddef.h> |
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#include <stdint.h> /* for int64_t */ |
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#include <functional> |
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/* events that may be observed */ |
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#define FDE_READ 0x0001 |
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#define FDE_WRITE 0x0002 |
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#define FDE_ERROR 0x0004 |
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/* features that may be set (via the events set/add/del interface) */ |
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#define FDE_DONT_CLOSE 0x0080 |
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typedef void (*fd_func)(int fd, unsigned events, void *userdata); |
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struct fdevent { |
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fdevent *next; |
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fdevent *prev; |
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int fd; |
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int force_eof; |
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uint16_t state; |
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uint16_t events; |
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fd_func func; |
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void *arg; |
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}; |
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/* Allocate and initialize a new fdevent object |
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* Note: use FD_TIMER as 'fd' to create a fd-less object |
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* (used to implement timers). |
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*/ |
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fdevent *fdevent_create(int fd, fd_func func, void *arg); |
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/* Uninitialize and deallocate an fdevent object that was |
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** created by fdevent_create() |
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*/ |
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void fdevent_destroy(fdevent *fde); |
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/* Initialize an fdevent object that was externally allocated |
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*/ |
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void fdevent_install(fdevent *fde, int fd, fd_func func, void *arg); |
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/* Uninitialize an fdevent object that was initialized by |
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** fdevent_install() |
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*/ |
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void fdevent_remove(fdevent *item); |
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/* Change which events should cause notifications |
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*/ |
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void fdevent_set(fdevent *fde, unsigned events); |
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void fdevent_add(fdevent *fde, unsigned events); |
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void fdevent_del(fdevent *fde, unsigned events); |
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void fdevent_set_timeout(fdevent *fde, int64_t timeout_ms); |
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/* loop forever, handling events. |
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*/ |
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void fdevent_loop(); |
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void check_main_thread(); |
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// Queue an operation to run on the main thread. |
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void fdevent_run_on_main_thread(std::function<void()> fn); |
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// The following functions are used only for tests. |
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void fdevent_terminate_loop(); |
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size_t fdevent_installed_count(); |
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void fdevent_reset(); |
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void set_main_thread(); |
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#endif
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