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master
Marc Alexander Lehmann 2007-11-09 21:48:22 +00:00
parent d81c0d269d
commit 82ee172801
4 changed files with 28 additions and 23 deletions
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12
README.embed
View File

@ -172,13 +172,15 @@ PREPROCESSOR SYMBOLS
EV_CB_DECLARE(type)
EV_CB_INVOKE(watcher,revents)
ev_set_cb(ev,cb)
Can be used to change the callback member declaration in each
watcher, and the way callbacks are invoked. Must expand to a struct
member definition and a statement, respectively. See the ev.v
header file for their default definitions. One possible use for overriding
these is to avoid the ev_loop pointer as first argument in all cases, or
to use method calls instead of plain function calls in C++.
watcher, and the way callbacks are invoked and set. Must expand
to a struct member definition and a statement, respectively. See
the ev.v header file for their default definitions. One possible
use for overriding these is to avoid the ev_loop pointer as first
argument in all cases, or to use method calls instead of plain
function calls in C++.
EXAMPLES

6
ev.c
View File

@ -753,7 +753,7 @@ loop_init (EV_P_ int methods)
if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
#endif
ev_watcher_init (&sigev, sigcb);
ev_init (&sigev, sigcb);
ev_set_priority (&sigev, EV_MAXPRI);
}
}
@ -1566,14 +1566,14 @@ ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, vo
once->cb = cb;
once->arg = arg;
ev_watcher_init (&once->io, once_cb_io);
ev_init (&once->io, once_cb_io);
if (fd >= 0)
{
ev_io_set (&once->io, fd, events);
ev_io_start (EV_A_ &once->io);
}
ev_watcher_init (&once->to, once_cb_to);
ev_init (&once->to, once_cb_to);
if (timeout >= 0.)
{
ev_timer_set (&once->to, timeout, 0.);

27
ev.h
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@ -300,12 +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)
@ -317,14 +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 */
@ -332,7 +332,10 @@ 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 */

6
event.c
View File

@ -181,11 +181,11 @@ x_cb_to (EV_P_ struct ev_timer *w, int revents)
void event_set (struct event *ev, int fd, short events, void (*cb)(int, short, void *), void *arg)
{
if (events & EV_SIGNAL)
ev_watcher_init (&ev->iosig.sig, x_cb_sig);
ev_init (&ev->iosig.sig, x_cb_sig);
else
ev_watcher_init (&ev->iosig.io, x_cb_io);
ev_init (&ev->iosig.io, x_cb_io);
ev_watcher_init (&ev->to, x_cb_to);
ev_init (&ev->to, x_cb_to);
ev->ev_base = x_cur; /* not threadsafe, but its like libevent works */
ev->ev_fd = fd;