make timers best-effort non-drifting

[software/libev.git] / ev.h

diff --git a/ev.h b/ev.h
index 801783847dc2f5f8a7c10d7b99d496f391ea0257..369e45c9cde259917977505175303e548a58f00f 100644 (file)
--- a/ev.h
+++ b/ev.h
@@ -55,11 +55,15 @@ struct ev_loop;
 # define EV_P_ EV_P,
 # define EV_A loop
 # define EV_A_ EV_A,
 # define EV_P_ EV_P,
 # define EV_A loop
 # define EV_A_ EV_A,

+# define EV_DEFAULT_A ev_default_loop (0)
+# define EV_DEFAULT_A_ EV_DEFAULT_A,

 #else
 # define EV_P void
 # define EV_P_
 # define EV_A
 # define EV_A_
 #else
 # define EV_P void
 # define EV_P_
 # define EV_A
 # define EV_A_

+# define EV_DEFAULT_A
+# define EV_DEFAULT_A_

 #endif
 
 /* eventmask, revents, events... */
 #endif
 
 /* eventmask, revents, events... */


@@ -88,7 +92,7 @@ struct ev_loop;
 #define EV_VERSION_MINOR 1
 
 #ifndef EV_CB_DECLARE
 #define EV_VERSION_MINOR 1
 
 #ifndef EV_CB_DECLARE

-# define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents)
+# 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
 #ifndef EV_CB_INVOKE
 # define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents))


@@ -212,14 +216,15 @@ union ev_any_watcher
 {
   struct ev_watcher w;
   struct ev_watcher_list wl;
 {
   struct ev_watcher w;
   struct ev_watcher_list wl;

+

   struct ev_io io;
   struct ev_timer timer;
   struct ev_periodic periodic;
   struct ev_io io;
   struct ev_timer timer;
   struct ev_periodic periodic;

-  struct ev_signal signal;

   struct ev_idle idle;
   struct ev_idle idle;

-  struct ev_child child;

   struct ev_prepare prepare;
   struct ev_check check;
   struct ev_prepare prepare;
   struct ev_check check;

+  struct ev_signal signal;
+  struct ev_child child;

 };
 
 #define EVMETHOD_AUTO     0 /* consults environment */
 };
 
 #define EVMETHOD_AUTO     0 /* consults environment */


@@ -261,8 +266,20 @@ struct ev_loop *ev_default_loop (int methods); /* returns default loop */
 struct ev_loop *ev_loop_new (int methods);
 void ev_loop_destroy (EV_P);
 void ev_loop_fork (EV_P);
 struct ev_loop *ev_loop_new (int methods);
 void ev_loop_destroy (EV_P);
 void ev_loop_fork (EV_P);

+
+ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */
+

 # else
 # else

+

 int ev_default_loop (int methods); /* returns true when successful */
 int ev_default_loop (int methods); /* returns true when successful */

+
+static ev_tstamp
+ev_now ()
+{
+  extern ev_tstamp ev_rt_now;
+
+  return ev_rt_now;
+}

 # endif
 
 void ev_default_destroy (void); /* destroy the default loop */
 # endif
 
 void ev_default_destroy (void); /* destroy the default loop */


@@ -284,8 +301,6 @@ int ev_method (EV_P);
 void ev_loop (EV_P_ int flags);
 void ev_unloop (EV_P_ int how); /* set to 1 to break out of event loop, set to 2 to break out of all event loops */
 
 void ev_loop (EV_P_ int flags);
 void ev_unloop (EV_P_ int how); /* set to 1 to break out of event loop, set to 2 to break out of all event loops */
 

-ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */
-

 /*
  * ref/unref can be used to add or remove a refcount on the mainloop. every watcher
  * keeps one reference. if you have a long-runing watcher you never unregister that
 /*
  * ref/unref can be used to add or remove a refcount on the mainloop. every watcher
  * keeps one reference. if you have a long-runing watcher you never unregister that