X-Git-Url: https://git.llucax.com/software/libev.git/blobdiff_plain/36718ee47b617f9eeb411c70d1dd87bc33389db3..46c499e78dc97f19ed40e0479c0855e71dd440a6:/ev.c diff --git a/ev.c b/ev.c index 79b3786..2c34141 100644 --- a/ev.c +++ b/ev.c @@ -28,27 +28,36 @@ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ + +#ifdef __cplusplus +extern "C" { +#endif + #ifndef EV_STANDALONE # include "config.h" # if HAVE_CLOCK_GETTIME -# define EV_USE_MONOTONIC 1 -# define EV_USE_REALTIME 1 +# ifndef EV_USE_MONOTONIC +# define EV_USE_MONOTONIC 1 +# endif +# ifndef EV_USE_REALTIME +# define EV_USE_REALTIME 1 +# endif # endif -# if HAVE_SELECT && HAVE_SYS_SELECT_H +# if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT) # define EV_USE_SELECT 1 # endif -# if HAVE_POLL && HAVE_POLL_H +# if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL) # define EV_USE_POLL 1 # endif -# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H +# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL) # define EV_USE_EPOLL 1 # endif -# if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H +# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE) # define EV_USE_KQUEUE 1 # endif @@ -68,11 +77,18 @@ #include -#ifndef WIN32 +#ifndef _WIN32 # include # include # include +#else +# define WIN32_LEAN_AND_MEAN +# include +# ifndef EV_SELECT_IS_WINSOCKET +# define EV_SELECT_IS_WINSOCKET 1 +# endif #endif + /**/ #ifndef EV_USE_MONOTONIC @@ -81,10 +97,15 @@ #ifndef EV_USE_SELECT # define EV_USE_SELECT 1 +# define EV_SELECT_USE_FD_SET 1 #endif #ifndef EV_USE_POLL -# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */ +# ifdef _WIN32 +# define EV_USE_POLL 0 +# else +# define EV_USE_POLL 1 +# endif #endif #ifndef EV_USE_EPOLL @@ -95,22 +116,18 @@ # define EV_USE_KQUEUE 0 #endif -#ifndef EV_USE_WIN32 -# ifdef WIN32 -# define EV_USE_WIN32 0 /* it does not exist, use select */ -# undef EV_USE_SELECT -# define EV_USE_SELECT 1 -# else -# define EV_USE_WIN32 0 -# endif -#endif - #ifndef EV_USE_REALTIME # define EV_USE_REALTIME 1 #endif /**/ +/* darwin simply cannot be helped */ +#ifdef __APPLE__ +# undef EV_USE_POLL +# undef EV_USE_KQUEUE +#endif + #ifndef CLOCK_MONOTONIC # undef EV_USE_MONOTONIC # define EV_USE_MONOTONIC 0 @@ -121,6 +138,10 @@ # define EV_USE_REALTIME 0 #endif +#if EV_SELECT_IS_WINSOCKET +# include +#endif + /**/ #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ @@ -128,7 +149,11 @@ #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ /*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */ -#include "ev.h" +#ifdef EV_H +# include EV_H +#else +# include "ev.h" +#endif #if __GNUC__ >= 3 # define expect(expr,value) __builtin_expect ((expr),(value)) @@ -144,69 +169,16 @@ #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) #define ABSPRI(w) ((w)->priority - EV_MINPRI) +#define EMPTY /* required for microsofts broken pseudo-c compiler */ + typedef struct ev_watcher *W; typedef struct ev_watcher_list *WL; typedef struct ev_watcher_time *WT; static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ -#if WIN32 -/* note: the comment below could not be substantiated, but what would I care */ -/* MSDN says this is required to handle SIGFPE */ -volatile double SIGFPE_REQ = 0.0f; - -static int -ev_socketpair_tcp (int filedes [2]) -{ - struct sockaddr_in addr = { 0 }; - int addr_size = sizeof (addr); - SOCKET listener; - SOCKET sock [2] = { -1, -1 }; - - if ((listener = socket (AF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET) - return -1; - - addr.sin_family = AF_INET; - addr.sin_addr.s_addr = htonl (INADDR_LOOPBACK); - addr.sin_port = 0; - - if (bind (listener, (struct sockaddr *)&addr, addr_size)) - goto fail; - - if (getsockname(listener, (struct sockaddr *)&addr, &addr_size)) - goto fail; - - if (listen (listener, 1)) - goto fail; - - if ((sock [0] = socket (AF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET) - goto fail; - - if (connect (sock[0], (struct sockaddr *)&addr, addr_size)) - goto fail; - - if ((sock[1] = accept (listener, 0, 0)) < 0) - goto fail; - - closesocket (listener); - - filedes [0] = sock [0]; - filedes [1] = sock [1]; - - return 0; - -fail: - closesocket (listener); - - if (sock [0] != INVALID_SOCKET) closesocket (sock [0]); - if (sock [1] != INVALID_SOCKET) closesocket (sock [1]); - - return -1; -} - -# define ev_pipe(filedes) ev_socketpair_tcp (filedes) -#else -# define ev_pipe(filedes) pipe (filedes) +#ifdef _WIN32 +# include "ev_win32.c" #endif /*****************************************************************************/ @@ -264,6 +236,9 @@ typedef struct WL head; unsigned char events; unsigned char reify; +#if EV_SELECT_IS_WINSOCKET + SOCKET handle; +#endif } ANFD; typedef struct @@ -274,25 +249,33 @@ typedef struct #if EV_MULTIPLICITY -struct ev_loop -{ -# define VAR(name,decl) decl; -# include "ev_vars.h" -}; -# undef VAR -# include "ev_wrap.h" + struct ev_loop + { + ev_tstamp ev_rt_now; + #define ev_rt_now ((loop)->ev_rt_now) + #define VAR(name,decl) decl; + #include "ev_vars.h" + #undef VAR + }; + #include "ev_wrap.h" + + struct ev_loop default_loop_struct; + static struct ev_loop *default_loop; #else -# define VAR(name,decl) static decl; -# include "ev_vars.h" -# undef VAR + ev_tstamp ev_rt_now; + #define VAR(name,decl) static decl; + #include "ev_vars.h" + #undef VAR + + static int default_loop; #endif /*****************************************************************************/ -inline ev_tstamp +ev_tstamp ev_time (void) { #if EV_USE_REALTIME @@ -321,42 +304,39 @@ get_clock (void) return ev_time (); } +#if EV_MULTIPLICITY ev_tstamp ev_now (EV_P) { - return rt_now; + return ev_rt_now; } +#endif -#define array_roundsize(base,n) ((n) | 4 & ~3) +#define array_roundsize(type,n) (((n) | 4) & ~3) -#define array_needsize(base,cur,cnt,init) \ +#define array_needsize(type,base,cur,cnt,init) \ if (expect_false ((cnt) > cur)) \ { \ int newcnt = cur; \ do \ { \ - newcnt = array_roundsize (base, newcnt << 1); \ + newcnt = array_roundsize (type, newcnt << 1); \ } \ while ((cnt) > newcnt); \ \ - base = ev_realloc (base, sizeof (*base) * (newcnt)); \ + base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\ init (base + cur, newcnt - cur); \ cur = newcnt; \ } -#define array_slim(stem) \ +#define array_slim(type,stem) \ if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ { \ stem ## max = array_roundsize (stem ## cnt >> 1); \ - base = ev_realloc (base, sizeof (*base) * (stem ## max)); \ + base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ } -/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */ -/* bringing us everlasting joy in form of stupid extra macros that are not required in C */ -#define array_free_microshit(stem) \ - ev_free (stem ## s); stem ## cnt = stem ## max = 0; - #define array_free(stem, idx) \ ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; @@ -375,19 +355,21 @@ anfds_init (ANFD *base, int count) } } -static void -event (EV_P_ W w, int events) +void +ev_feed_event (EV_P_ void *w, int revents) { - if (w->pending) + W w_ = (W)w; + + if (w_->pending) { - pendings [ABSPRI (w)][w->pending - 1].events |= events; + pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; return; } - w->pending = ++pendingcnt [ABSPRI (w)]; - array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], (void)); - pendings [ABSPRI (w)][w->pending - 1].w = w; - pendings [ABSPRI (w)][w->pending - 1].events = events; + w_->pending = ++pendingcnt [ABSPRI (w_)]; + array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void)); + pendings [ABSPRI (w_)][w_->pending - 1].w = w_; + pendings [ABSPRI (w_)][w_->pending - 1].events = revents; } static void @@ -396,24 +378,30 @@ queue_events (EV_P_ W *events, int eventcnt, int type) int i; for (i = 0; i < eventcnt; ++i) - event (EV_A_ events [i], type); + ev_feed_event (EV_A_ events [i], type); } -static void -fd_event (EV_P_ int fd, int events) +inline void +fd_event (EV_P_ int fd, int revents) { ANFD *anfd = anfds + fd; struct ev_io *w; for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) { - int ev = w->events & events; + int ev = w->events & revents; if (ev) - event (EV_A_ (W)w, ev); + ev_feed_event (EV_A_ (W)w, ev); } } +void +ev_feed_fd_event (EV_P_ int fd, int revents) +{ + fd_event (EV_A_ fd, revents); +} + /*****************************************************************************/ static void @@ -432,6 +420,15 @@ fd_reify (EV_P) for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) events |= w->events; +#if EV_SELECT_IS_WINSOCKET + if (events) + { + unsigned long argp; + anfd->handle = _get_osfhandle (fd); + assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); + } +#endif + anfd->reify = 0; method_modify (EV_A_ fd, anfd->events, events); @@ -450,7 +447,7 @@ fd_change (EV_P_ int fd) anfds [fd].reify = 1; ++fdchangecnt; - array_needsize (fdchanges, fdchangemax, fdchangecnt, (void)); + array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void)); fdchanges [fdchangecnt - 1] = fd; } @@ -462,15 +459,15 @@ fd_kill (EV_P_ int fd) while ((w = (struct ev_io *)anfds [fd].head)) { ev_io_stop (EV_A_ w); - event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); + ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); } } static int fd_valid (int fd) { -#ifdef WIN32 - return !!win32_get_osfhandle (fd); +#ifdef _WIN32 + return _get_osfhandle (fd) != -1; #else return fcntl (fd, F_GETFD) != -1; #endif @@ -560,6 +557,13 @@ downheap (WT *heap, int N, int k) ((W)heap [k])->active = k + 1; } +inline void +adjustheap (WT *heap, int N, int k) +{ + upheap (heap, k); + downheap (heap, N, k); +} + /*****************************************************************************/ typedef struct @@ -590,7 +594,7 @@ signals_init (ANSIG *base, int count) static void sighandler (int signum) { -#if WIN32 +#if _WIN32 signal (signum, sighandler); #endif @@ -605,10 +609,29 @@ sighandler (int signum) } } +void +ev_feed_signal_event (EV_P_ int signum) +{ + WL w; + +#if EV_MULTIPLICITY + assert (("feeding signal events is only supported in the default loop", loop == default_loop)); +#endif + + --signum; + + if (signum < 0 || signum >= signalmax) + return; + + signals [signum].gotsig = 0; + + for (w = signals [signum].head; w; w = w->next) + ev_feed_event (EV_A_ (W)w, EV_SIGNAL); +} + static void sigcb (EV_P_ struct ev_io *iow, int revents) { - WL w; int signum; read (sigpipe [0], &revents, 1); @@ -616,25 +639,26 @@ sigcb (EV_P_ struct ev_io *iow, int revents) for (signum = signalmax; signum--; ) if (signals [signum].gotsig) - { - signals [signum].gotsig = 0; + ev_feed_signal_event (EV_A_ signum + 1); +} - for (w = signals [signum].head; w; w = w->next) - event (EV_A_ (W)w, EV_SIGNAL); - } +inline void +fd_intern (int fd) +{ +#ifdef _WIN32 + int arg = 1; + ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); +#else + fcntl (fd, F_SETFD, FD_CLOEXEC); + fcntl (fd, F_SETFL, O_NONBLOCK); +#endif } static void siginit (EV_P) { -#ifndef WIN32 - fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); - fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); - - /* rather than sort out wether we really need nb, set it */ - fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); - fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); -#endif + fd_intern (sigpipe [0]); + fd_intern (sigpipe [1]); ev_io_set (&sigev, sigpipe [0], EV_READ); ev_io_start (EV_A_ &sigev); @@ -645,7 +669,7 @@ siginit (EV_P) static struct ev_child *childs [PID_HASHSIZE]; -#ifndef WIN32 +#ifndef _WIN32 static struct ev_signal childev; @@ -664,7 +688,7 @@ child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status) ev_priority (w) = ev_priority (sw); /* need to do it *now* */ w->rpid = pid; w->rstatus = status; - event (EV_A_ (W)w, EV_CHILD); + ev_feed_event (EV_A_ (W)w, EV_CHILD); } } @@ -676,7 +700,7 @@ childcb (EV_P_ struct ev_signal *sw, int revents) if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) { /* make sure we are called again until all childs have been reaped */ - event (EV_A_ (W)sw, EV_SIGNAL); + ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); child_reap (EV_A_ sw, pid, pid, status); child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ @@ -716,7 +740,7 @@ ev_version_minor (void) static int enable_secure (void) { -#ifdef WIN32 +#ifdef _WIN32 return 0; #else return getuid () != geteuid () @@ -724,14 +748,14 @@ enable_secure (void) #endif } -int +unsigned int ev_method (EV_P) { return method; } static void -loop_init (EV_P_ int methods) +loop_init (EV_P_ unsigned int flags) { if (!method) { @@ -743,35 +767,32 @@ loop_init (EV_P_ int methods) } #endif - rt_now = ev_time (); + ev_rt_now = ev_time (); mn_now = get_clock (); now_floor = mn_now; - rtmn_diff = rt_now - mn_now; + rtmn_diff = ev_rt_now - mn_now; - if (methods == EVMETHOD_AUTO) - if (!enable_secure () && getenv ("LIBEV_METHODS")) - methods = atoi (getenv ("LIBEV_METHODS")); - else - methods = EVMETHOD_ANY; + if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS")) + flags = atoi (getenv ("LIBEV_FLAGS")); + + if (!(flags & 0x0000ffff)) + flags |= 0x0000ffff; method = 0; -#if EV_USE_WIN32 - if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods); -#endif #if EV_USE_KQUEUE - if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); + if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags); #endif #if EV_USE_EPOLL - if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); + if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags); #endif #if EV_USE_POLL - if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); + if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags); #endif #if EV_USE_SELECT - if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); + if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags); #endif - ev_watcher_init (&sigev, sigcb); + ev_init (&sigev, sigcb); ev_set_priority (&sigev, EV_MAXPRI); } } @@ -781,9 +802,6 @@ loop_destroy (EV_P) { int i; -#if EV_USE_WIN32 - if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A); -#endif #if EV_USE_KQUEUE if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); #endif @@ -801,12 +819,14 @@ loop_destroy (EV_P) array_free (pending, [i]); /* have to use the microsoft-never-gets-it-right macro */ - array_free_microshit (fdchange); - array_free_microshit (timer); - array_free_microshit (periodic); - array_free_microshit (idle); - array_free_microshit (prepare); - array_free_microshit (check); + array_free (fdchange, EMPTY); + array_free (timer, EMPTY); +#if EV_PERIODICS + array_free (periodic, EMPTY); +#endif + array_free (idle, EMPTY); + array_free (prepare, EMPTY); + array_free (check, EMPTY); method = 0; } @@ -830,7 +850,7 @@ loop_fork (EV_P) close (sigpipe [0]); close (sigpipe [1]); - while (ev_pipe (sigpipe)) + while (pipe (sigpipe)) syserr ("(libev) error creating pipe"); siginit (EV_A); @@ -841,13 +861,13 @@ loop_fork (EV_P) #if EV_MULTIPLICITY struct ev_loop * -ev_loop_new (int methods) +ev_loop_new (unsigned int flags) { struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); memset (loop, 0, sizeof (struct ev_loop)); - loop_init (EV_A_ methods); + loop_init (EV_A_ flags); if (ev_method (EV_A)) return loop; @@ -871,19 +891,14 @@ ev_loop_fork (EV_P) #endif #if EV_MULTIPLICITY -struct ev_loop default_loop_struct; -static struct ev_loop *default_loop; - struct ev_loop * #else -static int default_loop; - int #endif -ev_default_loop (int methods) +ev_default_loop (unsigned int flags) { if (sigpipe [0] == sigpipe [1]) - if (ev_pipe (sigpipe)) + if (pipe (sigpipe)) return 0; if (!default_loop) @@ -894,13 +909,13 @@ ev_default_loop (int methods) default_loop = 1; #endif - loop_init (EV_A_ methods); + loop_init (EV_A_ flags); if (ev_method (EV_A)) { siginit (EV_A); -#ifndef WIN32 +#ifndef _WIN32 ev_signal_init (&childev, childcb, SIGCHLD); ev_set_priority (&childev, EV_MAXPRI); ev_signal_start (EV_A_ &childev); @@ -921,7 +936,7 @@ ev_default_destroy (void) struct ev_loop *loop = default_loop; #endif -#ifndef WIN32 +#ifndef _WIN32 ev_ref (EV_A); /* child watcher */ ev_signal_stop (EV_A_ &childev); #endif @@ -948,6 +963,18 @@ ev_default_fork (void) /*****************************************************************************/ +static int +any_pending (EV_P) +{ + int pri; + + for (pri = NUMPRI; pri--; ) + if (pendingcnt [pri]) + return 1; + + return 0; +} + static void call_pending (EV_P) { @@ -961,7 +988,7 @@ call_pending (EV_P) if (p->w) { p->w->pending = 0; - p->w->cb (EV_A_ p->w, p->events); + EV_CB_INVOKE (p->w, p->events); } } } @@ -979,36 +1006,47 @@ timers_reify (EV_P) if (w->repeat) { assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); - ((WT)w)->at = mn_now + w->repeat; + + ((WT)w)->at += w->repeat; + if (((WT)w)->at < mn_now) + ((WT)w)->at = mn_now; + downheap ((WT *)timers, timercnt, 0); } else ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ - event (EV_A_ (W)w, EV_TIMEOUT); + ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); } } +#if EV_PERIODICS static void periodics_reify (EV_P) { - while (periodiccnt && ((WT)periodics [0])->at <= rt_now) + while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) { struct ev_periodic *w = periodics [0]; assert (("inactive timer on periodic heap detected", ev_is_active (w))); /* first reschedule or stop timer */ - if (w->interval) + if (w->reschedule_cb) { - ((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; - assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now)); + ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); + assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); + downheap ((WT *)periodics, periodiccnt, 0); + } + else if (w->interval) + { + ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; + assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); downheap ((WT *)periodics, periodiccnt, 0); } else ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ - event (EV_A_ (W)w, EV_PERIODIC); + ev_feed_event (EV_A_ (W)w, EV_PERIODIC); } } @@ -1022,20 +1060,17 @@ periodics_reschedule (EV_P) { struct ev_periodic *w = periodics [i]; - if (w->interval) - { - ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; - - if (fabs (diff) >= 1e-4) - { - ev_periodic_stop (EV_A_ w); - ev_periodic_start (EV_A_ w); - - i = 0; /* restart loop, inefficient, but time jumps should be rare */ - } - } + if (w->reschedule_cb) + ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); + else if (w->interval) + ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; } + + /* now rebuild the heap */ + for (i = periodiccnt >> 1; i--; ) + downheap ((WT *)periodics, periodiccnt, i); } +#endif inline int time_update_monotonic (EV_P) @@ -1044,13 +1079,13 @@ time_update_monotonic (EV_P) if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) { - rt_now = rtmn_diff + mn_now; + ev_rt_now = rtmn_diff + mn_now; return 0; } else { now_floor = mn_now; - rt_now = ev_time (); + ev_rt_now = ev_time (); return 1; } } @@ -1069,17 +1104,19 @@ time_update (EV_P) for (i = 4; --i; ) /* loop a few times, before making important decisions */ { - rtmn_diff = rt_now - mn_now; + rtmn_diff = ev_rt_now - mn_now; if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) return; /* all is well */ - rt_now = ev_time (); + ev_rt_now = ev_time (); mn_now = get_clock (); now_floor = mn_now; } +# if EV_PERIODICS periodics_reschedule (EV_A); +# endif /* no timer adjustment, as the monotonic clock doesn't jump */ /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ } @@ -1087,18 +1124,20 @@ time_update (EV_P) else #endif { - rt_now = ev_time (); + ev_rt_now = ev_time (); - if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) + if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) { +#if EV_PERIODICS periodics_reschedule (EV_A); +#endif /* adjust timers. this is easy, as the offset is the same for all */ for (i = 0; i < timercnt; ++i) - ((WT)timers [i])->at += rt_now - mn_now; + ((WT)timers [i])->at += ev_rt_now - mn_now; } - mn_now = rt_now; + mn_now = ev_rt_now; } } @@ -1140,7 +1179,7 @@ ev_loop (EV_P_ int flags) /* calculate blocking time */ - /* we only need this for !monotonic clockor timers, but as we basically + /* we only need this for !monotonic clock or timers, but as we basically always have timers, we just calculate it always */ #if EV_USE_MONOTONIC if (expect_true (have_monotonic)) @@ -1148,8 +1187,8 @@ ev_loop (EV_P_ int flags) else #endif { - rt_now = ev_time (); - mn_now = rt_now; + ev_rt_now = ev_time (); + mn_now = ev_rt_now; } if (flags & EVLOOP_NONBLOCK || idlecnt) @@ -1164,26 +1203,30 @@ ev_loop (EV_P_ int flags) if (block > to) block = to; } +#if EV_PERIODICS if (periodiccnt) { - ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge; + ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge; if (block > to) block = to; } +#endif if (block < 0.) block = 0.; } method_poll (EV_A_ block); - /* update rt_now, do magic */ + /* update ev_rt_now, do magic */ time_update (EV_A); /* queue pending timers and reschedule them */ timers_reify (EV_A); /* relative timers called last */ +#if EV_PERIODICS periodics_reify (EV_A); /* absolute timers called first */ +#endif /* queue idle watchers unless io or timers are pending */ - if (!pendingcnt) + if (idlecnt && !any_pending (EV_A)) queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); /* queue check watchers, to be executed first */ @@ -1268,7 +1311,7 @@ ev_io_start (EV_P_ struct ev_io *w) assert (("ev_io_start called with negative fd", fd >= 0)); ev_start (EV_A_ (W)w, 1); - array_needsize (anfds, anfdmax, fd + 1, anfds_init); + array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); wlist_add ((WL *)&anfds[fd].head, (WL)w); fd_change (EV_A_ fd); @@ -1281,6 +1324,8 @@ ev_io_stop (EV_P_ struct ev_io *w) if (!ev_is_active (w)) return; + assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); + wlist_del ((WL *)&anfds[w->fd].head, (WL)w); ev_stop (EV_A_ (W)w); @@ -1298,7 +1343,7 @@ ev_timer_start (EV_P_ struct ev_timer *w) assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); ev_start (EV_A_ (W)w, ++timercnt); - array_needsize (timers, timermax, timercnt, (void)); + array_needsize (struct ev_timer *, timers, timermax, timercnt, (void)); timers [timercnt - 1] = w; upheap ((WT *)timers, timercnt - 1); @@ -1317,10 +1362,10 @@ ev_timer_stop (EV_P_ struct ev_timer *w) if (((W)w)->active < timercnt--) { timers [((W)w)->active - 1] = timers [timercnt]; - downheap ((WT *)timers, timercnt, ((W)w)->active - 1); + adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); } - ((WT)w)->at = w->repeat; + ((WT)w)->at -= mn_now; ev_stop (EV_A_ (W)w); } @@ -1333,29 +1378,36 @@ ev_timer_again (EV_P_ struct ev_timer *w) if (w->repeat) { ((WT)w)->at = mn_now + w->repeat; - downheap ((WT *)timers, timercnt, ((W)w)->active - 1); + adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); } else ev_timer_stop (EV_A_ w); } else if (w->repeat) - ev_timer_start (EV_A_ w); + { + w->at = w->repeat; + ev_timer_start (EV_A_ w); + } } +#if EV_PERIODICS void ev_periodic_start (EV_P_ struct ev_periodic *w) { if (ev_is_active (w)) return; - assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); - - /* this formula differs from the one in periodic_reify because we do not always round up */ - if (w->interval) - ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; + if (w->reschedule_cb) + ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); + else if (w->interval) + { + assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); + /* this formula differs from the one in periodic_reify because we do not always round up */ + ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; + } ev_start (EV_A_ (W)w, ++periodiccnt); - array_needsize (periodics, periodicmax, periodiccnt, (void)); + array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void)); periodics [periodiccnt - 1] = w; upheap ((WT *)periodics, periodiccnt - 1); @@ -1374,12 +1426,21 @@ ev_periodic_stop (EV_P_ struct ev_periodic *w) if (((W)w)->active < periodiccnt--) { periodics [((W)w)->active - 1] = periodics [periodiccnt]; - downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); + adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); } ev_stop (EV_A_ (W)w); } +void +ev_periodic_again (EV_P_ struct ev_periodic *w) +{ + /* TODO: use adjustheap and recalculation */ + ev_periodic_stop (EV_A_ w); + ev_periodic_start (EV_A_ w); +} +#endif + void ev_idle_start (EV_P_ struct ev_idle *w) { @@ -1387,7 +1448,7 @@ ev_idle_start (EV_P_ struct ev_idle *w) return; ev_start (EV_A_ (W)w, ++idlecnt); - array_needsize (idles, idlemax, idlecnt, (void)); + array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void)); idles [idlecnt - 1] = w; } @@ -1395,7 +1456,7 @@ void ev_idle_stop (EV_P_ struct ev_idle *w) { ev_clear_pending (EV_A_ (W)w); - if (ev_is_active (w)) + if (!ev_is_active (w)) return; idles [((W)w)->active - 1] = idles [--idlecnt]; @@ -1409,7 +1470,7 @@ ev_prepare_start (EV_P_ struct ev_prepare *w) return; ev_start (EV_A_ (W)w, ++preparecnt); - array_needsize (prepares, preparemax, preparecnt, (void)); + array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void)); prepares [preparecnt - 1] = w; } @@ -1417,7 +1478,7 @@ void ev_prepare_stop (EV_P_ struct ev_prepare *w) { ev_clear_pending (EV_A_ (W)w); - if (ev_is_active (w)) + if (!ev_is_active (w)) return; prepares [((W)w)->active - 1] = prepares [--preparecnt]; @@ -1431,7 +1492,7 @@ ev_check_start (EV_P_ struct ev_check *w) return; ev_start (EV_A_ (W)w, ++checkcnt); - array_needsize (checks, checkmax, checkcnt, (void)); + array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void)); checks [checkcnt - 1] = w; } @@ -1439,7 +1500,7 @@ void ev_check_stop (EV_P_ struct ev_check *w) { ev_clear_pending (EV_A_ (W)w); - if (ev_is_active (w)) + if (!ev_is_active (w)) return; checks [((W)w)->active - 1] = checks [--checkcnt]; @@ -1462,12 +1523,12 @@ ev_signal_start (EV_P_ struct ev_signal *w) assert (("ev_signal_start called with illegal signal number", w->signum > 0)); ev_start (EV_A_ (W)w, 1); - array_needsize (signals, signalmax, w->signum, signals_init); + array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); if (!((WL)w)->next) { -#if WIN32 +#if _WIN32 signal (w->signum, sighandler); #else struct sigaction sa; @@ -1510,7 +1571,7 @@ void ev_child_stop (EV_P_ struct ev_child *w) { ev_clear_pending (EV_A_ (W)w); - if (ev_is_active (w)) + if (!ev_is_active (w)) return; wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); @@ -1555,7 +1616,7 @@ once_cb_to (EV_P_ struct ev_timer *w, int revents) void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) { - struct ev_once *once = ev_malloc (sizeof (struct ev_once)); + struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); if (!once) cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); @@ -1564,14 +1625,14 @@ 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.); @@ -1580,3 +1641,7 @@ ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, vo } } +#ifdef __cplusplus +} +#endif +