better error handling

[software/libev.git] / ev.h

diff --git a/ev.h b/ev.h
index b563c3fcbfad8be8b418d654a6ebb6a7812c0f5f..08b5963e631abfae28e454b8aa2979d2e705fa38 100644 (file)
--- a/ev.h
+++ b/ev.h
@@ -199,6 +199,20 @@ struct ev_child
   int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */
 };
 
+union ev_any_watcher
+{
+  struct ev_watcher w;
+  struct ev_watcher_list wl;
+  struct ev_io io;
+  struct ev_timer timer;
+  struct ev_periodic periodic;
+  struct ev_signal signal;
+  struct ev_idle idle;
+  struct ev_child child;
+  struct ev_prepare prepare;
+  struct ev_check check;
+};
+
 #define EVMETHOD_AUTO     0 /* consults environment */
 #define EVMETHOD_SELECT   1
 #define EVMETHOD_POLL     2
@@ -215,6 +229,20 @@ int ev_version_minor (void);
 
 ev_tstamp ev_time (void);
 
+/* Sets the allocation function to use, works like realloc.
+ * It is used to allocate and free memory.
+ * If it returns zero when memory needs to be allocated, the library might abort
+ * or take some potentially destructive action.
+ * The default is your system realloc function.
+ */
+void ev_set_allocator (void *(*cb)(void *ptr, long size));
+
+/* set the callback function to call on a
+ * retryable syscall error
+ * (such as failed select, poll, epoll_wait)
+ */
+void ev_set_syserr_cb (void (*cb)(void));
+
 # if EV_MULTIPLICITY
 /* the default loop is the only one that handles signals and child watchers */
 /* you can call this as often as you like */