X-Git-Url: https://git.llucax.com/software/libev.git/blobdiff_plain/36ed1953891a670e15f5e113491596630f21676c..4b05fe94e44407cd62092863e204337c521e7d8a:/ev.c?ds=inline diff --git a/ev.c b/ev.c index 1cafd9b..e3e7e57 100644 --- a/ev.c +++ b/ev.c @@ -30,13 +30,33 @@ */ #ifndef EV_STANDALONE # include "config.h" + +# if HAVE_CLOCK_GETTIME +# define EV_USE_MONOTONIC 1 +# define EV_USE_REALTIME 1 +# endif + +# if HAVE_SELECT && HAVE_SYS_SELECT_H +# define EV_USE_SELECT 1 +# endif + +# if HAVE_POLL && HAVE_POLL_H +# define EV_USE_POLL 1 +# endif + +# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H +# define EV_USE_EPOLL 1 +# endif + +# if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H +# define EV_USE_KQUEUE 1 +# endif + #endif #include #include -#include #include -#include #include #include @@ -44,12 +64,15 @@ #include #include #include +#include + +#include + #ifndef WIN32 +# include +# include # include #endif -#include -#include - /**/ #ifndef EV_USE_MONOTONIC @@ -60,8 +83,8 @@ # define EV_USE_SELECT 1 #endif -#ifndef EV_USEV_POLL -# define EV_USEV_POLL 0 /* poll is usually slower than select, and not as well tested */ +#ifndef EV_USE_POLL +# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */ #endif #ifndef EV_USE_EPOLL @@ -72,6 +95,16 @@ # 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 @@ -115,43 +148,89 @@ typedef struct ev_watcher *W; typedef struct ev_watcher_list *WL; typedef struct ev_watcher_time *WT; -static ev_tstamp now_floor, mn_now, diff; /* monotonic clock */ -static ev_tstamp rt_now; -static int method; +static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ -static int have_monotonic; /* runtime */ +#include "ev_win32.c" -static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */ -static void (*method_modify)(EV_P_ int fd, int oev, int nev); -static void (*method_poll)(EV_P_ ev_tstamp timeout); +/*****************************************************************************/ -static int activecnt; /* number of active events */ +static void (*syserr_cb)(const char *msg); -#if EV_USE_SELECT -static unsigned char *vec_ri, *vec_ro, *vec_wi, *vec_wo; -static int vec_max; -#endif +void ev_set_syserr_cb (void (*cb)(const char *msg)) +{ + syserr_cb = cb; +} -#if EV_USEV_POLL -static struct pollfd *polls; -static int pollmax, pollcnt; -static int *pollidxs; /* maps fds into structure indices */ -static int pollidxmax; -#endif +static void +syserr (const char *msg) +{ + if (!msg) + msg = "(libev) system error"; -#if EV_USE_EPOLL -static int epoll_fd = -1; + if (syserr_cb) + syserr_cb (msg); + else + { + perror (msg); + abort (); + } +} -static struct epoll_event *events; -static int eventmax; -#endif +static void *(*alloc)(void *ptr, long size); + +void ev_set_allocator (void *(*cb)(void *ptr, long size)) +{ + alloc = cb; +} + +static void * +ev_realloc (void *ptr, long size) +{ + ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); + + if (!ptr && size) + { + fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); + abort (); + } + + return ptr; +} + +#define ev_malloc(size) ev_realloc (0, (size)) +#define ev_free(ptr) ev_realloc ((ptr), 0) + +/*****************************************************************************/ + +typedef struct +{ + WL head; + unsigned char events; + unsigned char reify; +} ANFD; + +typedef struct +{ + W w; + int events; +} ANPENDING; + +#if EV_MULTIPLICITY + +struct ev_loop +{ +# define VAR(name,decl) decl; +# include "ev_vars.h" +}; +# undef VAR +# include "ev_wrap.h" + +#else + +# define VAR(name,decl) static decl; +# include "ev_vars.h" +# undef VAR -#if EV_USE_KQUEUE -static int kqueue_fd; -static struct kevent *kqueue_changes; -static int kqueue_changemax, kqueue_changecnt; -static struct kevent *kqueue_events; -static int kqueue_eventmax; #endif /*****************************************************************************/ @@ -191,34 +270,40 @@ ev_now (EV_P) return rt_now; } -#define array_roundsize(base,n) ((n) | 4 & ~3) - -#define array_needsize(base,cur,cnt,init) \ - if (expect_false ((cnt) > cur)) \ - { \ - int newcnt = cur; \ - do \ - { \ - newcnt = array_roundsize (base, newcnt << 1); \ - } \ - while ((cnt) > newcnt); \ - \ - base = realloc (base, sizeof (*base) * (newcnt)); \ - init (base + cur, newcnt - cur); \ - cur = newcnt; \ +#define array_roundsize(type,n) ((n) | 4 & ~3) + +#define array_needsize(type,base,cur,cnt,init) \ + if (expect_false ((cnt) > cur)) \ + { \ + int newcnt = cur; \ + do \ + { \ + newcnt = array_roundsize (type, newcnt << 1); \ + } \ + while ((cnt) > newcnt); \ + \ + base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\ + init (base + cur, newcnt - cur); \ + cur = newcnt; \ } -/*****************************************************************************/ +#define array_slim(type,stem) \ + if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ + { \ + stem ## max = array_roundsize (stem ## cnt >> 1); \ + base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ + fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ + } -typedef struct -{ - struct ev_watcher_list *head; - unsigned char events; - unsigned char reify; -} ANFD; +/* 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; -static ANFD *anfds; -static int anfdmax; +/*****************************************************************************/ static void anfds_init (ANFD *base, int count) @@ -233,15 +318,6 @@ anfds_init (ANFD *base, int count) } } -typedef struct -{ - W w; - int events; -} ANPENDING; - -static ANPENDING *pendings [NUMPRI]; -static int pendingmax [NUMPRI], pendingcnt [NUMPRI]; - static void event (EV_P_ W w, int events) { @@ -252,7 +328,7 @@ event (EV_P_ W w, int events) } w->pending = ++pendingcnt [ABSPRI (w)]; - array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], 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 = events; } @@ -283,9 +359,6 @@ fd_event (EV_P_ int fd, int events) /*****************************************************************************/ -static int *fdchanges; -static int fdchangemax, fdchangecnt; - static void fd_reify (EV_P) { @@ -304,11 +377,8 @@ fd_reify (EV_P) anfd->reify = 0; - if (anfd->events != events) - { - method_modify (EV_A_ fd, anfd->events, events); - anfd->events = events; - } + method_modify (EV_A_ fd, anfd->events, events); + anfd->events = events; } fdchangecnt = 0; @@ -317,13 +387,13 @@ fd_reify (EV_P) static void fd_change (EV_P_ int fd) { - if (anfds [fd].reify || fdchangecnt < 0) + if (anfds [fd].reify) return; anfds [fd].reify = 1; ++fdchangecnt; - array_needsize (fdchanges, fdchangemax, fdchangecnt, ); + array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void)); fdchanges [fdchangecnt - 1] = fd; } @@ -339,6 +409,16 @@ fd_kill (EV_P_ int fd) } } +static int +fd_valid (int fd) +{ +#ifdef WIN32 + return !!win32_get_osfhandle (fd); +#else + return fcntl (fd, F_GETFD) != -1; +#endif +} + /* called on EBADF to verify fds */ static void fd_ebadf (EV_P) @@ -347,7 +427,7 @@ fd_ebadf (EV_P) for (fd = 0; fd < anfdmax; ++fd) if (anfds [fd].events) - if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) + if (!fd_valid (fd) == -1 && errno == EBADF) fd_kill (EV_A_ fd); } @@ -355,71 +435,79 @@ fd_ebadf (EV_P) static void fd_enomem (EV_P) { - int fd = anfdmax; + int fd; - while (fd--) + for (fd = anfdmax; fd--; ) if (anfds [fd].events) { - close (fd); fd_kill (EV_A_ fd); return; } } -/*****************************************************************************/ +/* usually called after fork if method needs to re-arm all fds from scratch */ +static void +fd_rearm_all (EV_P) +{ + int fd; -static struct ev_timer **timers; -static int timermax, timercnt; + /* this should be highly optimised to not do anything but set a flag */ + for (fd = 0; fd < anfdmax; ++fd) + if (anfds [fd].events) + { + anfds [fd].events = 0; + fd_change (EV_A_ fd); + } +} -static struct ev_periodic **periodics; -static int periodicmax, periodiccnt; +/*****************************************************************************/ static void -upheap (WT *timers, int k) +upheap (WT *heap, int k) { - WT w = timers [k]; + WT w = heap [k]; - while (k && timers [k >> 1]->at > w->at) + while (k && heap [k >> 1]->at > w->at) { - timers [k] = timers [k >> 1]; - timers [k]->active = k + 1; + heap [k] = heap [k >> 1]; + ((W)heap [k])->active = k + 1; k >>= 1; } - timers [k] = w; - timers [k]->active = k + 1; + heap [k] = w; + ((W)heap [k])->active = k + 1; } static void -downheap (WT *timers, int N, int k) +downheap (WT *heap, int N, int k) { - WT w = timers [k]; + WT w = heap [k]; while (k < (N >> 1)) { int j = k << 1; - if (j + 1 < N && timers [j]->at > timers [j + 1]->at) + if (j + 1 < N && heap [j]->at > heap [j + 1]->at) ++j; - if (w->at <= timers [j]->at) + if (w->at <= heap [j]->at) break; - timers [k] = timers [j]; - timers [k]->active = k + 1; + heap [k] = heap [j]; + ((W)heap [k])->active = k + 1; k = j; } - timers [k] = w; - timers [k]->active = k + 1; + heap [k] = w; + ((W)heap [k])->active = k + 1; } /*****************************************************************************/ typedef struct { - struct ev_watcher_list *head; + WL head; sig_atomic_t volatile gotsig; } ANSIG; @@ -445,6 +533,10 @@ signals_init (ANSIG *base, int count) static void sighandler (int signum) { +#if WIN32 + signal (signum, sighandler); +#endif + signals [signum - 1].gotsig = 1; if (!gotsig) @@ -459,7 +551,7 @@ sighandler (int signum) static void sigcb (EV_P_ struct ev_io *iow, int revents) { - struct ev_watcher_list *w; + WL w; int signum; read (sigpipe [0], &revents, 1); @@ -488,28 +580,18 @@ siginit (EV_P) #endif ev_io_set (&sigev, sigpipe [0], EV_READ); - ev_io_start (&sigev); + ev_io_start (EV_A_ &sigev); ev_unref (EV_A); /* child watcher should not keep loop alive */ } /*****************************************************************************/ -static struct ev_idle **idles; -static int idlemax, idlecnt; - -static struct ev_prepare **prepares; -static int preparemax, preparecnt; - -static struct ev_check **checks; -static int checkmax, checkcnt; - -/*****************************************************************************/ - static struct ev_child *childs [PID_HASHSIZE]; -static struct ev_signal childev; #ifndef WIN32 +static struct ev_signal childev; + #ifndef WCONTINUED # define WCONTINUED 0 #endif @@ -522,9 +604,9 @@ child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status) for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) if (w->pid == pid || !w->pid) { - w->priority = sw->priority; /* need to do it *now* */ - w->rpid = pid; - w->rstatus = 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); } } @@ -554,7 +636,7 @@ childcb (EV_P_ struct ev_signal *sw, int revents) #if EV_USE_EPOLL # include "ev_epoll.c" #endif -#if EV_USEV_POLL +#if EV_USE_POLL # include "ev_poll.c" #endif #if EV_USE_SELECT @@ -591,8 +673,8 @@ ev_method (EV_P) return method; } -int -ev_init (EV_P_ int methods) +static void +loop_init (EV_P_ int methods) { if (!method) { @@ -607,35 +689,158 @@ ev_init (EV_P_ int methods) rt_now = ev_time (); mn_now = get_clock (); now_floor = mn_now; - diff = rt_now - mn_now; - - if (pipe (sigpipe)) - return 0; + rtmn_diff = rt_now - mn_now; if (methods == EVMETHOD_AUTO) - if (!enable_secure () && getenv ("LIBmethodS")) - methods = atoi (getenv ("LIBmethodS")); + if (!enable_secure () && getenv ("LIBEV_METHODS")) + methods = atoi (getenv ("LIBEV_METHODS")); else methods = EVMETHOD_ANY; 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); #endif #if EV_USE_EPOLL if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); #endif -#if EV_USEV_POLL +#if EV_USE_POLL if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); #endif #if EV_USE_SELECT if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); #endif - if (method) + ev_watcher_init (&sigev, sigcb); + ev_set_priority (&sigev, EV_MAXPRI); + } +} + +void +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 +#if EV_USE_EPOLL + if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); +#endif +#if EV_USE_POLL + if (method == EVMETHOD_POLL ) poll_destroy (EV_A); +#endif +#if EV_USE_SELECT + if (method == EVMETHOD_SELECT) select_destroy (EV_A); +#endif + + for (i = NUMPRI; i--; ) + 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); + + method = 0; +} + +static void +loop_fork (EV_P) +{ +#if EV_USE_EPOLL + if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); +#endif +#if EV_USE_KQUEUE + if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); +#endif + + if (ev_is_active (&sigev)) + { + /* default loop */ + + ev_ref (EV_A); + ev_io_stop (EV_A_ &sigev); + close (sigpipe [0]); + close (sigpipe [1]); + + while (pipe (sigpipe)) + syserr ("(libev) error creating pipe"); + + siginit (EV_A); + } + + postfork = 0; +} + +#if EV_MULTIPLICITY +struct ev_loop * +ev_loop_new (int methods) +{ + 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); + + if (ev_method (EV_A)) + return loop; + + return 0; +} + +void +ev_loop_destroy (EV_P) +{ + loop_destroy (EV_A); + ev_free (loop); +} + +void +ev_loop_fork (EV_P) +{ + postfork = 1; +} + +#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) +{ + if (sigpipe [0] == sigpipe [1]) + if (pipe (sigpipe)) + return 0; + + if (!default_loop) + { +#if EV_MULTIPLICITY + struct ev_loop *loop = default_loop = &default_loop_struct; +#else + default_loop = 1; +#endif + + loop_init (EV_A_ methods); + + if (ev_method (EV_A)) { - ev_watcher_init (&sigev, sigcb); - ev_set_priority (&sigev, EV_MAXPRI); siginit (EV_A); #ifndef WIN32 @@ -645,38 +850,43 @@ ev_init (EV_P_ int methods) ev_unref (EV_A); /* child watcher should not keep loop alive */ #endif } + else + default_loop = 0; } - return method; + return default_loop; } -/*****************************************************************************/ - void -ev_fork_prepare (void) +ev_default_destroy (void) { - /* nop */ -} +#if EV_MULTIPLICITY + struct ev_loop *loop = default_loop; +#endif -void -ev_fork_parent (void) -{ - /* nop */ +#ifndef WIN32 + ev_ref (EV_A); /* child watcher */ + ev_signal_stop (EV_A_ &childev); +#endif + + ev_ref (EV_A); /* signal watcher */ + ev_io_stop (EV_A_ &sigev); + + close (sigpipe [0]); sigpipe [0] = 0; + close (sigpipe [1]); sigpipe [1] = 0; + + loop_destroy (EV_A); } void -ev_fork_child (void) +ev_default_fork (void) { -#if EV_USE_EPOLL - if (method == EVMETHOD_EPOLL) - epoll_postfork_child (); +#if EV_MULTIPLICITY + struct ev_loop *loop = default_loop; #endif - ev_io_stop (&sigev); - close (sigpipe [0]); - close (sigpipe [1]); - pipe (sigpipe); - siginit (); + if (method) + postfork = 1; } /*****************************************************************************/ @@ -702,36 +912,40 @@ call_pending (EV_P) static void timers_reify (EV_P) { - while (timercnt && timers [0]->at <= mn_now) + while (timercnt && ((WT)timers [0])->at <= mn_now) { struct ev_timer *w = timers [0]; + assert (("inactive timer on timer heap detected", ev_is_active (w))); + /* first reschedule or stop timer */ if (w->repeat) { assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); - w->at = mn_now + w->repeat; + ((WT)w)->at = mn_now + w->repeat; downheap ((WT *)timers, timercnt, 0); } else ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ - event ((W)w, EV_TIMEOUT); + event (EV_A_ (W)w, EV_TIMEOUT); } } static void periodics_reify (EV_P) { - while (periodiccnt && periodics [0]->at <= rt_now) + while (periodiccnt && ((WT)periodics [0])->at <= 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) { - w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval; - assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now)); + ((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)); downheap ((WT *)periodics, periodiccnt, 0); } else @@ -742,7 +956,7 @@ periodics_reify (EV_P) } static void -periodics_reschedule (EV_P_ ev_tstamp diff) +periodics_reschedule (EV_P) { int i; @@ -753,7 +967,7 @@ periodics_reschedule (EV_P_ ev_tstamp diff) if (w->interval) { - ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval; + ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; if (fabs (diff) >= 1e-4) { @@ -773,7 +987,7 @@ time_update_monotonic (EV_P) if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) { - rt_now = mn_now + diff; + rt_now = rtmn_diff + mn_now; return 0; } else @@ -794,13 +1008,13 @@ time_update (EV_P) { if (time_update_monotonic (EV_A)) { - ev_tstamp odiff = diff; + ev_tstamp odiff = rtmn_diff; for (i = 4; --i; ) /* loop a few times, before making important decisions */ { - diff = rt_now - mn_now; + rtmn_diff = rt_now - mn_now; - if (fabs (odiff - diff) < MIN_TIMEJUMP) + if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) return; /* all is well */ rt_now = ev_time (); @@ -808,8 +1022,9 @@ time_update (EV_P) now_floor = mn_now; } - periodics_reschedule (EV_A_ diff - odiff); + periodics_reschedule (EV_A); /* no timer adjustment, as the monotonic clock doesn't jump */ + /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ } } else @@ -819,11 +1034,11 @@ time_update (EV_P) if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) { - periodics_reschedule (EV_A_ rt_now - mn_now); + periodics_reschedule (EV_A); /* adjust timers. this is easy, as the offset is the same for all */ for (i = 0; i < timercnt; ++i) - timers [i]->at += diff; + ((WT)timers [i])->at += rt_now - mn_now; } mn_now = rt_now; @@ -859,6 +1074,10 @@ ev_loop (EV_P_ int flags) call_pending (EV_A); } + /* we might have forked, so reify kernel state if necessary */ + if (expect_false (postfork)) + loop_fork (EV_A); + /* update fd-related kernel structures */ fd_reify (EV_A); @@ -884,13 +1103,13 @@ ev_loop (EV_P_ int flags) if (timercnt) { - ev_tstamp to = timers [0]->at - mn_now + method_fudge; + ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; if (block > to) block = to; } if (periodiccnt) { - ev_tstamp to = periodics [0]->at - rt_now + method_fudge; + ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge; if (block > to) block = to; } @@ -992,7 +1211,7 @@ 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); @@ -1017,14 +1236,16 @@ ev_timer_start (EV_P_ struct ev_timer *w) if (ev_is_active (w)) return; - w->at += mn_now; + ((WT)w)->at += mn_now; 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, ); + array_needsize (struct ev_timer *, timers, timermax, timercnt, (void)); timers [timercnt - 1] = w; upheap ((WT *)timers, timercnt - 1); + + assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); } void @@ -1034,13 +1255,15 @@ ev_timer_stop (EV_P_ struct ev_timer *w) if (!ev_is_active (w)) return; - if (w->active < timercnt--) + assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); + + if (((W)w)->active < timercnt--) { - timers [w->active - 1] = timers [timercnt]; - downheap ((WT *)timers, timercnt, w->active - 1); + timers [((W)w)->active - 1] = timers [timercnt]; + downheap ((WT *)timers, timercnt, ((W)w)->active - 1); } - w->at = w->repeat; + ((WT)w)->at = w->repeat; ev_stop (EV_A_ (W)w); } @@ -1052,8 +1275,8 @@ ev_timer_again (EV_P_ struct ev_timer *w) { if (w->repeat) { - w->at = mn_now + w->repeat; - downheap ((WT *)timers, timercnt, w->active - 1); + ((WT)w)->at = mn_now + w->repeat; + downheap ((WT *)timers, timercnt, ((W)w)->active - 1); } else ev_timer_stop (EV_A_ w); @@ -1072,12 +1295,14 @@ ev_periodic_start (EV_P_ struct ev_periodic *w) /* this formula differs from the one in periodic_reify because we do not always round up */ if (w->interval) - w->at += ceil ((rt_now - w->at) / w->interval) * w->interval; + ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; ev_start (EV_A_ (W)w, ++periodiccnt); - array_needsize (periodics, periodicmax, periodiccnt, ); + array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void)); periodics [periodiccnt - 1] = w; upheap ((WT *)periodics, periodiccnt - 1); + + assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); } void @@ -1087,124 +1312,136 @@ ev_periodic_stop (EV_P_ struct ev_periodic *w) if (!ev_is_active (w)) return; - if (w->active < periodiccnt--) + assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); + + if (((W)w)->active < periodiccnt--) { - periodics [w->active - 1] = periodics [periodiccnt]; - downheap ((WT *)periodics, periodiccnt, w->active - 1); + periodics [((W)w)->active - 1] = periodics [periodiccnt]; + downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); } ev_stop (EV_A_ (W)w); } -#ifndef SA_RESTART -# define SA_RESTART 0 -#endif - void -ev_signal_start (EV_P_ struct ev_signal *w) +ev_idle_start (EV_P_ struct ev_idle *w) { if (ev_is_active (w)) return; - 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); - wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); - - if (!w->next) - { - struct sigaction sa; - sa.sa_handler = sighandler; - sigfillset (&sa.sa_mask); - sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ - sigaction (w->signum, &sa, 0); - } + ev_start (EV_A_ (W)w, ++idlecnt); + array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void)); + idles [idlecnt - 1] = w; } void -ev_signal_stop (EV_P_ struct ev_signal *w) +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; - wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); + idles [((W)w)->active - 1] = idles [--idlecnt]; ev_stop (EV_A_ (W)w); - - if (!signals [w->signum - 1].head) - signal (w->signum, SIG_DFL); } void -ev_idle_start (EV_P_ struct ev_idle *w) +ev_prepare_start (EV_P_ struct ev_prepare *w) { if (ev_is_active (w)) return; - ev_start (EV_A_ (W)w, ++idlecnt); - array_needsize (idles, idlemax, idlecnt, ); - idles [idlecnt - 1] = w; + ev_start (EV_A_ (W)w, ++preparecnt); + array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void)); + prepares [preparecnt - 1] = w; } void -ev_idle_stop (EV_P_ struct ev_idle *w) +ev_prepare_stop (EV_P_ struct ev_prepare *w) { ev_clear_pending (EV_A_ (W)w); if (ev_is_active (w)) return; - idles [w->active - 1] = idles [--idlecnt]; + prepares [((W)w)->active - 1] = prepares [--preparecnt]; ev_stop (EV_A_ (W)w); } void -ev_prepare_start (EV_P_ struct ev_prepare *w) +ev_check_start (EV_P_ struct ev_check *w) { if (ev_is_active (w)) return; - ev_start (EV_A_ (W)w, ++preparecnt); - array_needsize (prepares, preparemax, preparecnt, ); - prepares [preparecnt - 1] = w; + ev_start (EV_A_ (W)w, ++checkcnt); + array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void)); + checks [checkcnt - 1] = w; } void -ev_prepare_stop (EV_P_ struct ev_prepare *w) +ev_check_stop (EV_P_ struct ev_check *w) { ev_clear_pending (EV_A_ (W)w); if (ev_is_active (w)) return; - prepares [w->active - 1] = prepares [--preparecnt]; + checks [((W)w)->active - 1] = checks [--checkcnt]; ev_stop (EV_A_ (W)w); } +#ifndef SA_RESTART +# define SA_RESTART 0 +#endif + void -ev_check_start (EV_P_ struct ev_check *w) +ev_signal_start (EV_P_ struct ev_signal *w) { +#if EV_MULTIPLICITY + assert (("signal watchers are only supported in the default loop", loop == default_loop)); +#endif if (ev_is_active (w)) return; - ev_start (EV_A_ (W)w, ++checkcnt); - array_needsize (checks, checkmax, checkcnt, ); - checks [checkcnt - 1] = w; + assert (("ev_signal_start called with illegal signal number", w->signum > 0)); + + ev_start (EV_A_ (W)w, 1); + 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 + signal (w->signum, sighandler); +#else + struct sigaction sa; + sa.sa_handler = sighandler; + sigfillset (&sa.sa_mask); + sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ + sigaction (w->signum, &sa, 0); +#endif + } } void -ev_check_stop (EV_P_ struct ev_check *w) +ev_signal_stop (EV_P_ struct ev_signal *w) { ev_clear_pending (EV_A_ (W)w); - if (ev_is_active (w)) + if (!ev_is_active (w)) return; - checks [w->active - 1] = checks [--checkcnt]; + wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); ev_stop (EV_A_ (W)w); + + if (!signals [w->signum - 1].head) + signal (w->signum, SIG_DFL); } void ev_child_start (EV_P_ struct ev_child *w) { +#if EV_MULTIPLICITY + assert (("child watchers are only supported in the default loop", loop == default_loop)); +#endif if (ev_is_active (w)) return; @@ -1241,7 +1478,7 @@ once_cb (EV_P_ struct ev_once *once, int revents) ev_io_stop (EV_A_ &once->io); ev_timer_stop (EV_A_ &once->to); - free (once); + ev_free (once); cb (revents, arg); } @@ -1261,7 +1498,7 @@ 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 = 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); @@ -1286,86 +1523,3 @@ ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, vo } } -/*****************************************************************************/ - -#if 0 - -struct ev_io wio; - -static void -sin_cb (struct ev_io *w, int revents) -{ - fprintf (stderr, "sin %d, revents %d\n", w->fd, revents); -} - -static void -ocb (struct ev_timer *w, int revents) -{ - //fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data); - ev_timer_stop (w); - ev_timer_start (w); -} - -static void -scb (struct ev_signal *w, int revents) -{ - fprintf (stderr, "signal %x,%d\n", revents, w->signum); - ev_io_stop (&wio); - ev_io_start (&wio); -} - -static void -gcb (struct ev_signal *w, int revents) -{ - fprintf (stderr, "generic %x\n", revents); - -} - -int main (void) -{ - ev_init (0); - - ev_io_init (&wio, sin_cb, 0, EV_READ); - ev_io_start (&wio); - - struct ev_timer t[10000]; - -#if 0 - int i; - for (i = 0; i < 10000; ++i) - { - struct ev_timer *w = t + i; - ev_watcher_init (w, ocb, i); - ev_timer_init_abs (w, ocb, drand48 (), 0.99775533); - ev_timer_start (w); - if (drand48 () < 0.5) - ev_timer_stop (w); - } -#endif - - struct ev_timer t1; - ev_timer_init (&t1, ocb, 5, 10); - ev_timer_start (&t1); - - struct ev_signal sig; - ev_signal_init (&sig, scb, SIGQUIT); - ev_signal_start (&sig); - - struct ev_check cw; - ev_check_init (&cw, gcb); - ev_check_start (&cw); - - struct ev_idle iw; - ev_idle_init (&iw, gcb); - ev_idle_start (&iw); - - ev_loop (0); - - return 0; -} - -#endif - - - -