fix some aliasing issues again

[software/libev.git] / ev.h

diff --git a/ev.h b/ev.h
index 26ffe7804d526f1df69579c2b99385e4a4370e05..c4b843e2e93d01146e389af8400550a869ea6950 100644 (file)
--- a/ev.h
+++ b/ev.h
@@ -56,6 +56,10 @@ typedef double ev_tstamp;
 # define EV_STAT_ENABLE 1
 #endif
 
+#ifndef EV_IDLE_ENABLE
+# define EV_IDLE_ENABLE 1
+#endif
+
 #ifndef EV_FORK_ENABLE
 # define EV_FORK_ENABLE 1
 #endif
@@ -115,8 +119,8 @@ struct ev_loop;
 # define EV_PROTOTYPES 1
 #endif
 
-#define EV_VERSION_MAJOR 1
-#define EV_VERSION_MINOR 1
+#define EV_VERSION_MAJOR 2
+#define EV_VERSION_MINOR 0
 
 #ifndef EV_CB_DECLARE
 # define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents);
@@ -191,6 +195,7 @@ typedef struct ev_periodic
 {
   EV_WATCHER_TIME (ev_periodic)
 
+  ev_tstamp offset; /* rw */
   ev_tstamp interval; /* rw */
   ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now); /* rw */
 } ev_periodic;
@@ -218,32 +223,36 @@ typedef struct ev_child
 
 #if EV_STAT_ENABLE
 /* st_nlink = 0 means missing file or other error */
-#ifdef _WIN32
+# ifdef _WIN32
 typedef struct _stati64 ev_statdata;
-#else
+# else
 typedef struct stat ev_statdata;
-#endif
+# endif
 
 /* invoked each time the stat data changes for a given path */
 /* revent EV_STAT */
 typedef struct ev_stat
 {
-  EV_WATCHER (ev_stat)
+  EV_WATCHER_LIST (ev_stat)
 
   ev_timer timer;     /* private */
   ev_tstamp interval; /* ro */
   const char *path;   /* ro */
   ev_statdata prev;   /* ro */
   ev_statdata attr;   /* ro */
+
+  int wd; /* wd for inotify, fd for kqueue */
 } ev_stat;
 #endif
 
+#if EV_IDLE_ENABLE
 /* invoked when the nothing else needs to be done, keeps the process from blocking */
 /* revent EV_IDLE */
 typedef struct ev_idle
 {
   EV_WATCHER (ev_idle)
 } ev_idle;
+#endif
 
 /* invoked for each run of the mainloop, just before the blocking call */
 /* you can still change events in any way you like */
@@ -294,7 +303,9 @@ union ev_any_watcher
 #if EV_STAT_ENABLE
   struct ev_stat stat;
 #endif
+#if EV_IDLE_ENABLE
   struct ev_idle idle;
+#endif
   struct ev_prepare prepare;
   struct ev_check check;
 #if EV_FORK_ENABLE
@@ -310,6 +321,7 @@ union ev_any_watcher
 #define EVFLAG_AUTO       0x00000000UL /* not quite a mask */
 /* flag bits */
 #define EVFLAG_NOENV      0x01000000UL /* do NOT consult environment */
+#define EVFLAG_FORKCHECK  0x02000000UL /* check for a fork in each iteration */
 /* method bits to be ored together */
 #define EVBACKEND_SELECT  0x00000001UL /* about anywhere */
 #define EVBACKEND_POLL    0x00000002UL /* !win */
@@ -385,6 +397,7 @@ void ev_default_destroy (void); /* destroy the default loop */
 void ev_default_fork (void);
 
 unsigned int ev_backend (EV_P);
+unsigned int ev_loop_count (EV_P);
 #endif
 
 #define EVLOOP_NONBLOCK        1 /* do not block/wait */
@@ -412,19 +425,19 @@ void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revent
 
 /* these may evaluate ev multiple times, and the other arguments at most once */
 /* 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 {                           \
+#define ev_init(ev,cb_) do {                   \
   ((ev_watcher *)(void *)(ev))->active   =     \
   ((ev_watcher *)(void *)(ev))->pending  =     \
   ((ev_watcher *)(void *)(ev))->priority = 0;  \
-  ev_set_cb ((ev), cb_);                                       \
+  ev_set_cb ((ev), cb_);                       \
 } while (0)
 
 #define ev_io_set(ev,fd_,events_)           do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0)
 #define ev_timer_set(ev,after_,repeat_)     do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0)
-#define ev_periodic_set(ev,at_,ival_,res_)  do { (ev)->at = (at_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0)
+#define ev_periodic_set(ev,ofs_,ival_,res_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0)
 #define ev_signal_set(ev,signum_)           do { (ev)->signum = (signum_); } while (0)
 #define ev_child_set(ev,pid_)               do { (ev)->pid = (pid_); } while (0)
-#define ev_stat_set(ev,path_,interval_)     do { (ev)->path = (path_); (ev)->interval = (interval_); } while (0)
+#define ev_stat_set(ev,path_,interval_)     do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0)
 #define ev_idle_set(ev)                     /* nop, yes, this is a serious in-joke */
 #define ev_prepare_set(ev)                  /* nop, yes, this is a serious in-joke */
 #define ev_check_set(ev)                    /* nop, yes, this is a serious in-joke */
@@ -446,9 +459,9 @@ void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revent
 #define ev_is_pending(ev)                   (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */
 #define ev_is_active(ev)                    (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */
 
-#define ev_priority(ev)                     ((ev_watcher *)(void *)(ev))->priority /* rw */
+#define ev_priority(ev)                     ((((ev_watcher *)(void *)(ev))->priority) + 0)
 #define ev_cb(ev)                           (ev)->cb /* rw */
-#define ev_set_priority(ev,pri)             ev_priority (ev) = (pri)
+#define ev_set_priority(ev,pri)             ((ev_watcher *)(void *)(ev))->priority = (pri)
 
 #ifndef ev_set_cb
 # define ev_set_cb(ev,cb_)                  ev_cb (ev) = (cb_)
@@ -463,6 +476,8 @@ void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revent
 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_invoke         (EV_P_ void *w, int revents);
+int  ev_clear_pending  (EV_P_ void *w);
 
 void ev_io_start       (EV_P_ ev_io *w);
 void ev_io_stop        (EV_P_ ev_io *w);
@@ -492,8 +507,10 @@ void ev_stat_stop      (EV_P_ ev_stat *w);
 void ev_stat_stat      (EV_P_ ev_stat *w);
 # endif
 
+# if EV_IDLE_ENABLE
 void ev_idle_start     (EV_P_ ev_idle *w);
 void ev_idle_stop      (EV_P_ ev_idle *w);
+# endif
 
 void ev_prepare_start  (EV_P_ ev_prepare *w);
 void ev_prepare_stop   (EV_P_ ev_prepare *w);