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[software/libev.git] / ev.h

diff --git a/ev.h b/ev.h
index fec2ca4a9fd1a64b32361784390e738234bd0306..4c915a010bbba5e3e7af4a03d5fdd6e4f48a8b85 100644 (file)
--- a/ev.h
+++ b/ev.h
@@ -73,18 +73,18 @@ struct ev_loop;
 /* eventmask, revents, events... */
 #define EV_UNDEF          -1 /* guaranteed to be invalid */
 #define EV_NONE         0x00
-#define EV_READ         0x01
-#define EV_WRITE        0x02
-#define EV_TIMEOUT  0x000100
-#define EV_PERIODIC 0x000200
-#define EV_SIGNAL   0x000400
-#define EV_IDLE     0x000800
-#define EV_CHECK    0x001000
-#define EV_PREPARE  0x002000
-#define EV_CHILD    0x004000
+#define EV_READ         0x01 /* io only */
+#define EV_WRITE        0x02 /* io only */
+#define EV_TIMEOUT  0x000100 /* timer only */
+#define EV_PERIODIC 0x000200 /* periodic timer only */
+#define EV_SIGNAL   0x000400 /* signal only */
+#define EV_IDLE     0x000800 /* idle only */
+#define EV_CHECK    0x001000 /* check only */
+#define EV_PREPARE  0x002000 /* prepare only */
+#define EV_CHILD    0x004000 /* child/pid only */
 #define EV_ERROR    0x800000 /* sent when an error occurs */
 
-/* can be used to add custom fields to all watchers */
+/* can be used to add custom fields to all watchers, while losing binary compatibility */
 #ifndef EV_COMMON
 # define EV_COMMON void *data
 #endif