diff options
Diffstat (limited to 'ev.3')
| -rw-r--r-- | ev.3 | 58 |
1 files changed, 57 insertions, 1 deletions
@@ -134,9 +134,65 @@ libev \- a high performance full\-featured event loop written in C .SH "SYNOPSIS" .IX Header "SYNOPSIS" -.Vb 1 +.Vb 2 +\& /* this is the only header you need */ \& #include <ev.h> .Ve +.PP +.Vb 3 +\& /* what follows is a fully working example program */ +\& ev_io stdin_watcher; +\& ev_timer timeout_watcher; +.Ve +.PP +.Vb 8 +\& /* called when data readable on stdin */ +\& static void +\& stdin_cb (EV_P_ struct ev_io *w, int revents) +\& { +\& /* puts ("stdin ready"); */ +\& ev_io_stop (EV_A_ w); /* just a syntax example */ +\& ev_unloop (EV_A_ EVUNLOOP_ALL); /* leave all loop calls */ +\& } +.Ve +.PP +.Vb 6 +\& static void +\& timeout_cb (EV_P_ struct ev_timer *w, int revents) +\& { +\& /* puts ("timeout"); */ +\& ev_unloop (EV_A_ EVUNLOOP_ONE); /* leave one loop call */ +\& } +.Ve +.PP +.Vb 4 +\& int +\& main (void) +\& { +\& struct ev_loop *loop = ev_default_loop (0); +.Ve +.PP +.Vb 3 +\& /* initialise an io watcher, then start it */ +\& ev_io_init (&stdin_watcher, stdin_cb, /*STDIN_FILENO*/ 0, EV_READ); +\& ev_io_start (loop, &stdin_watcher); +.Ve +.PP +.Vb 3 +\& /* simple non-repeating 5.5 second timeout */ +\& ev_timer_init (&timeout_watcher, timeout_cb, 5.5, 0.); +\& ev_timer_start (loop, &timeout_watcher); +.Ve +.PP +.Vb 2 +\& /* loop till timeout or data ready */ +\& ev_loop (loop, 0); +.Ve +.PP +.Vb 2 +\& return 0; +\& } +.Ve .SH "DESCRIPTION" .IX Header "DESCRIPTION" Libev is an event loop: you register interest in certain events (such as a |