X-Git-Url: https://git.llucax.com/software/libev.git/blobdiff_plain/562ac1266c2d356af5d556cb0e0bbe96b83369d9..bc714cab3838a8039a24bb718c030cc2c736ee4a:/ev.h?ds=inline diff --git a/ev.h b/ev.h index 61c88a5..8017838 100644 --- a/ev.h +++ b/ev.h @@ -27,8 +27,8 @@ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ -#ifndef EV_H -#define EV_H +#ifndef EV_H__ +#define EV_H__ #ifdef __cplusplus extern "C" { @@ -87,6 +87,13 @@ struct ev_loop; #define EV_VERSION_MAJOR 1 #define EV_VERSION_MINOR 1 +#ifndef EV_CB_DECLARE +# define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents) +#endif +#ifndef EV_CB_INVOKE +# define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents)) +#endif + /* * struct member types: * private: you can look at them, but not change them, and they might not mean anything to you. @@ -100,7 +107,7 @@ struct ev_loop; int pending; /* private */ \ int priority; /* private */ \ EV_COMMON; /* rw */ \ - void (*cb)(EV_P_ struct type *, int revents) /* private */ /* gets invoked with an eventmask */ + EV_CB_DECLARE (type) /* private */ #define EV_WATCHER_LIST(type) \ EV_WATCHER (type); \ @@ -111,17 +118,20 @@ struct ev_loop; ev_tstamp at /* private */ /* base class, nothing to see here unless you subclass */ -struct ev_watcher { +struct ev_watcher +{ EV_WATCHER (ev_watcher); }; /* base class, nothing to see here unless you subclass */ -struct ev_watcher_list { +struct ev_watcher_list +{ EV_WATCHER_LIST (ev_watcher_list); }; /* base class, nothing to see here unless you subclass */ -struct ev_watcher_time { +struct ev_watcher_time +{ EV_WATCHER_TIME (ev_watcher_time); }; @@ -197,6 +207,7 @@ struct ev_child int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */ }; +/* the presence of this union forces similar struct layout */ union ev_any_watcher { struct ev_watcher w; @@ -289,12 +300,12 @@ void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revent #endif /* these may evaluate ev multiple times, and the other arguments at most once */ -/* either use ev_watcher_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ -#define ev_watcher_init(ev,cb_) do { \ +/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ +#define ev_init(ev,cb_) do { \ ((struct ev_watcher *)(void *)(ev))->active = \ ((struct ev_watcher *)(void *)(ev))->pending = \ ((struct ev_watcher *)(void *)(ev))->priority = 0; \ - (ev)->cb = (cb_); \ + ev_set_cb ((ev), cb_); \ } while (0) #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0) @@ -306,14 +317,14 @@ void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revent #define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ #define ev_child_set(ev,pid_) do { (ev)->pid = (pid_); } while (0) -#define ev_io_init(ev,cb,fd,events) do { ev_watcher_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) -#define ev_timer_init(ev,cb,after,repeat) do { ev_watcher_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) -#define ev_periodic_init(ev,cb,at,ival,res) do { ev_watcher_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0) -#define ev_signal_init(ev,cb,signum) do { ev_watcher_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) -#define ev_idle_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) -#define ev_prepare_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) -#define ev_check_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_check_set ((ev)); } while (0) -#define ev_child_init(ev,cb,pid) do { ev_watcher_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0) +#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) +#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) +#define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0) +#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) +#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) +#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) +#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0) +#define ev_child_init(ev,cb,pid) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0) #define ev_is_pending(ev) (0 + ((struct ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ #define ev_is_active(ev) (0 + ((struct ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ @@ -321,11 +332,21 @@ void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revent #define ev_priority(ev) ((struct ev_watcher *)(void *)(ev))->priority /* rw */ #define ev_cb(ev) (ev)->cb /* rw */ #define ev_set_priority(ev,pri) ev_priority (ev) = (pri) -#define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) + +#ifndef ev_set_cb +# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) +#endif /* stopping (enabling, adding) a watcher does nothing if it is already running */ /* stopping (disabling, deleting) a watcher does nothing unless its already running */ #if EV_PROTOTYPES + +/* feeds an event into a watcher as if the event actually occured */ +/* accepts any ev_watcher type */ +void ev_feed_event (EV_P_ void *w, int revents); +void ev_feed_fd_event (EV_P_ int fd, int revents); +void ev_feed_signal_event (EV_P_ int signum); + void ev_io_start (EV_P_ struct ev_io *w); void ev_io_stop (EV_P_ struct ev_io *w);