Make the event loop expose a Windows event interface.

This allows event loop users to specify Win32 events to wait on,
thus making the event loop more flexible.

diff --git a/src/event.c b/src/event.c
index 0e4e2bd..5e6908f 100644 (file)
--- a/src/event.c
+++ b/src/event.c
@@ -72,9 +72,11 @@ void io_add(io_t *io, io_cb_t cb, void *data, int fd, int flags) {
 
        io->fd = fd;
 #ifdef HAVE_MINGW
-       io->event = WSACreateEvent();
-       if (io->event == WSA_INVALID_EVENT)
-               abort();
+       if (io->fd != -1) {
+               io->event = WSACreateEvent();
+               if (io->event == WSA_INVALID_EVENT)
+                       abort();
+       }
        event_count++;
 #endif
        io->cb = cb;
@@ -87,10 +89,19 @@ void io_add(io_t *io, io_cb_t cb, void *data, int fd, int flags) {
                abort();
 }
 
+#ifdef HAVE_MINGW
+void io_add_event(io_t *io, io_cb_t cb, void *data, WSAEVENT event) {
+       io_add(io, cb, data, -1, 0);
+       io->event = event;
+}
+#endif
+
 void io_set(io_t *io, int flags) {
        if (flags == io->flags)
                return;
        io->flags = flags;
+       if (io->fd == -1)
+               return;
 
 #ifndef HAVE_MINGW
        if(flags & IO_READ)
@@ -119,7 +130,7 @@ void io_del(io_t *io) {
 
        io_set(io, 0);
 #ifdef HAVE_MINGW
-       if (WSACloseEvent(io->event) == FALSE)
+       if (io->fd != -1 && WSACloseEvent(io->event) == FALSE)
                abort();
        event_count--;
 #endif
@@ -334,13 +345,17 @@ bool event_loop(void) {
                if (!io)
                        abort();
 
-               WSANETWORKEVENTS network_events;
-               if (WSAEnumNetworkEvents(io->fd, io->event, &network_events) != 0)
-                       return false;
-               if (network_events.lNetworkEvents & WRITE_EVENTS)
-                       io->cb(io->data, IO_WRITE);
-               if (network_events.lNetworkEvents & READ_EVENTS)
-                       io->cb(io->data, IO_READ);
+               if (io->fd == -1) {
+                       io->cb(io->data, 0);
+               } else {
+                       WSANETWORKEVENTS network_events;
+                       if (WSAEnumNetworkEvents(io->fd, io->event, &network_events) != 0)
+                               return false;
+                       if (network_events.lNetworkEvents & WRITE_EVENTS)
+                               io->cb(io->data, IO_WRITE);
+                       if (network_events.lNetworkEvents & READ_EVENTS)
+                               io->cb(io->data, IO_READ);
+               }
        }
 #endif
 

diff --git a/src/event.h b/src/event.h
index bebb520..e4f5cee 100644 (file)
--- a/src/event.h
+++ b/src/event.h
@@ -57,6 +57,9 @@ typedef struct signal_t {
 extern struct timeval now;
 
 extern void io_add(io_t *io, io_cb_t cb, void *data, int fd, int flags);
+#ifdef HAVE_MINGW
+extern void io_add_event(io_t *io, io_cb_t cb, void* data, WSAEVENT event);
+#endif
 extern void io_del(io_t *io);
 extern void io_set(io_t *io, int flags);