+++ /dev/null
-/* Select()-based ae.c module
- * Copyright (C) 2009-2010 Salvatore Sanfilippo - antirez@gmail.com
- * Released under the BSD license. See the COPYING file for more info. */
-
-#include <string.h>
-
-typedef struct aeApiState {
- fd_set rfds, wfds;
- /* We need to have a copy of the fd sets as it's not safe to reuse
- * FD sets after select(). */
- fd_set _rfds, _wfds;
-} aeApiState;
-
-static int aeApiCreate(aeEventLoop *eventLoop) {
- aeApiState *state = zmalloc(sizeof(aeApiState));
-
- if (!state) return -1;
- FD_ZERO(&state->rfds);
- FD_ZERO(&state->wfds);
- eventLoop->apidata = state;
- return 0;
-}
-
-static void aeApiFree(aeEventLoop *eventLoop) {
- zfree(eventLoop->apidata);
-}
-
-static int aeApiAddEvent(aeEventLoop *eventLoop, int fd, int mask) {
- aeApiState *state = eventLoop->apidata;
-
- if (mask & AE_READABLE) FD_SET(fd,&state->rfds);
- if (mask & AE_WRITABLE) FD_SET(fd,&state->wfds);
- return 0;
-}
-
-static void aeApiDelEvent(aeEventLoop *eventLoop, int fd, int mask) {
- aeApiState *state = eventLoop->apidata;
-
- if (mask & AE_READABLE) FD_CLR(fd,&state->rfds);
- if (mask & AE_WRITABLE) FD_CLR(fd,&state->wfds);
-}
-
-static int aeApiPoll(aeEventLoop *eventLoop, struct timeval *tvp) {
- aeApiState *state = eventLoop->apidata;
- int retval, j, numevents = 0;
-
- memcpy(&state->_rfds,&state->rfds,sizeof(fd_set));
- memcpy(&state->_wfds,&state->wfds,sizeof(fd_set));
-
- retval = select(eventLoop->maxfd+1,
- &state->_rfds,&state->_wfds,NULL,tvp);
- if (retval > 0) {
- for (j = 0; j <= eventLoop->maxfd; j++) {
- int mask = 0;
- aeFileEvent *fe = &eventLoop->events[j];
-
- if (fe->mask == AE_NONE) continue;
- if (fe->mask & AE_READABLE && FD_ISSET(j,&state->_rfds))
- mask |= AE_READABLE;
- if (fe->mask & AE_WRITABLE && FD_ISSET(j,&state->_wfds))
- mask |= AE_WRITABLE;
- eventLoop->fired[numevents].fd = j;
- eventLoop->fired[numevents].mask = mask;
- numevents++;
- }
- }
- return numevents;
-}
-
-static char *aeApiName(void) {
- return "select";
-}