93 lines
2.5 KiB
C
93 lines
2.5 KiB
C
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#include "timer.h"
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struct timer_ctx {
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timer_cb cb;
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void* user_ctx;
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};
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void free_timerctx(void* c) {
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free(c);
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}
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int set_timeout_handle(struct evt_core_ctx* ctx, struct evt_core_fdinfo* fdinfo) {
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uint64_t ctr;
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ssize_t tmr_rd;
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tmr_rd = read(fdinfo->fd, &ctr, sizeof(ctr));
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if (tmr_rd == -1 && errno == EAGAIN) return 1;
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if (tmr_rd < 0) {
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perror("read on timer");
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fprintf(stderr, "An error occured on timer fd=%d\n", fdinfo->fd);
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exit(EXIT_FAILURE);
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}
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struct timer_ctx* tctx = fdinfo->other;
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tctx->cb(ctx, tctx->user_ctx);
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evt_core_rm_fd(ctx, fdinfo->fd);
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return 1;
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}
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void init_timer(struct evt_core_ctx* evts) {
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struct evt_core_cat* cat = evt_core_get_from_cat (evts, "set_timeout");
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if (cat != NULL) {
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fprintf(stderr, "timeout category has already been registered\n");
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return;
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}
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struct evt_core_cat timer = {
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.name = "set_timeout",
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.flags = EPOLLIN | EPOLLET,
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.app_ctx = NULL,
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.free_app_ctx = NULL,
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.cb = set_timeout_handle,
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.err_cb = NULL
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};
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evt_core_add_cat(evts, &timer);
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}
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int set_timeout(struct evt_core_ctx* evts, uint64_t milli_sec, void* ctx, timer_cb cb) {
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struct timespec now;
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struct itimerspec timer_config;
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char url[1024];
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struct evt_core_cat cat = {0};
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struct evt_core_fdinfo fdinfo = {0};
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fdinfo.cat = &cat;
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fdinfo.url = url;
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//printf("Will add a timeout of %ld ms\n", milli_sec);
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if (clock_gettime(CLOCK_REALTIME, &now) == -1) {
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perror("clock_gettime");
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exit(EXIT_FAILURE);
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}
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uint64_t ns = now.tv_nsec + (milli_sec % 1000) * 1000000;
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timer_config.it_value.tv_sec = now.tv_sec + milli_sec / 1000 + ns / 1000000000;
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timer_config.it_value.tv_nsec = ns % 1000000000;
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timer_config.it_interval.tv_sec = 60;
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timer_config.it_interval.tv_nsec = 0;
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fdinfo.fd = timerfd_create(CLOCK_REALTIME, 0);
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if (fdinfo.fd == -1) {
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perror("Unable to timerfd_create");
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exit(EXIT_FAILURE);
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}
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if (timerfd_settime (fdinfo.fd, TFD_TIMER_ABSTIME, &timer_config, NULL) == -1) {
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perror("Unable to timerfd_settime");
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exit(EXIT_FAILURE);
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}
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fdinfo.cat->name = "set_timeout";
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struct timer_ctx* tctx = malloc(sizeof(struct timer_ctx)); // Should put the link number and the id
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if (tctx == NULL) {
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perror("malloc failed in set_timeout");
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exit(EXIT_FAILURE);
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}
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tctx->user_ctx = ctx;
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tctx->cb = cb;
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fdinfo.other = tctx;
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fdinfo.free_other = free_timerctx;
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sprintf(fdinfo.url, "timer:%ld:1", milli_sec);
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evt_core_add_fd (evts, &fdinfo);
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return fdinfo.fd;
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}
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