| /* A simple event-driven programming library. Originally I wrote this code |
| * for the Jim's event-loop (Jim is a Tcl interpreter) but later translated |
| * it in form of a library for easy reuse. |
| * |
| * Copyright (c) 2006-2012, Salvatore Sanfilippo <antirez at gmail dot com> |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * |
| * * Redistributions of source code must retain the above copyright notice, |
| * this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * * Neither the name of Redis nor the names of its contributors may be used |
| * to endorse or promote products derived from this software without |
| * specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
| * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| * POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef __AE_H__ |
| #define __AE_H__ |
| |
| #define AE_OK 0 |
| #define AE_ERR -1 |
| |
| #define AE_NONE 0 |
| #define AE_READABLE 1 |
| #define AE_WRITABLE 2 |
| |
| #define AE_FILE_EVENTS 1 |
| #define AE_TIME_EVENTS 2 |
| #define AE_ALL_EVENTS (AE_FILE_EVENTS|AE_TIME_EVENTS) |
| #define AE_DONT_WAIT 4 |
| |
| #define AE_NOMORE -1 |
| |
| /* Macros */ |
| #define AE_NOTUSED(V) ((void) V) |
| |
| struct aeEventLoop; |
| |
| /* Types and data structures */ |
| typedef void aeFileProc(struct aeEventLoop *eventLoop, int fd, void *clientData, int mask); |
| typedef int aeTimeProc(struct aeEventLoop *eventLoop, long long id, void *clientData); |
| typedef void aeEventFinalizerProc(struct aeEventLoop *eventLoop, void *clientData); |
| typedef void aeBeforeSleepProc(struct aeEventLoop *eventLoop); |
| |
| /* File event structure */ |
| typedef struct aeFileEvent { |
| int mask; /* one of AE_(READABLE|WRITABLE) */ |
| aeFileProc *rfileProc; |
| aeFileProc *wfileProc; |
| void *clientData; |
| } aeFileEvent; |
| |
| /* Time event structure */ |
| typedef struct aeTimeEvent { |
| long long id; /* time event identifier. */ |
| long when_sec; /* seconds */ |
| long when_ms; /* milliseconds */ |
| aeTimeProc *timeProc; |
| aeEventFinalizerProc *finalizerProc; |
| void *clientData; |
| struct aeTimeEvent *next; |
| } aeTimeEvent; |
| |
| /* A fired event */ |
| typedef struct aeFiredEvent { |
| int fd; |
| int mask; |
| } aeFiredEvent; |
| |
| /* State of an event based program */ |
| typedef struct aeEventLoop { |
| int maxfd; /* highest file descriptor currently registered */ |
| int setsize; /* max number of file descriptors tracked */ |
| long long timeEventNextId; |
| time_t lastTime; /* Used to detect system clock skew */ |
| aeFileEvent *events; /* Registered events */ |
| aeFiredEvent *fired; /* Fired events */ |
| aeTimeEvent *timeEventHead; |
| int stop; |
| void *apidata; /* This is used for polling API specific data */ |
| aeBeforeSleepProc *beforesleep; |
| } aeEventLoop; |
| |
| /* Prototypes */ |
| aeEventLoop *aeCreateEventLoop(int setsize); |
| void aeDeleteEventLoop(aeEventLoop *eventLoop); |
| void aeStop(aeEventLoop *eventLoop); |
| int aeCreateFileEvent(aeEventLoop *eventLoop, int fd, int mask, |
| aeFileProc *proc, void *clientData); |
| void aeDeleteFileEvent(aeEventLoop *eventLoop, int fd, int mask); |
| int aeGetFileEvents(aeEventLoop *eventLoop, int fd); |
| long long aeCreateTimeEvent(aeEventLoop *eventLoop, long long milliseconds, |
| aeTimeProc *proc, void *clientData, |
| aeEventFinalizerProc *finalizerProc); |
| int aeDeleteTimeEvent(aeEventLoop *eventLoop, long long id); |
| int aeProcessEvents(aeEventLoop *eventLoop, int flags); |
| int aeWait(int fd, int mask, long long milliseconds); |
| void aeMain(aeEventLoop *eventLoop); |
| char *aeGetApiName(void); |
| void aeSetBeforeSleepProc(aeEventLoop *eventLoop, aeBeforeSleepProc *beforesleep); |
| |
| #endif |