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authorTom Gundersen <teg@jklm.no>2014-08-27 19:04:29 +0200
committerTom Gundersen <teg@jklm.no>2014-08-27 19:04:29 +0200
commitc609cb9898dc8dec5dcb0b1d111b3f6b6a5e09d4 (patch)
treeddac4b7a6a79d9722ce5d0fd940e7277c9ba04cb
parent8e9371905c743cf997b2e8fa7fe3238f81f741fe (diff)
man: add sample glib/sd-event integration
This should be moved to man pages, but for now the C code is included directly. Suggested by Zbyszek.
-rw-r--r--man/glib-event-glue.c74
1 files changed, 74 insertions, 0 deletions
diff --git a/man/glib-event-glue.c b/man/glib-event-glue.c
new file mode 100644
index 0000000000..95aaea1e63
--- /dev/null
+++ b/man/glib-event-glue.c
@@ -0,0 +1,74 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ Copyright 2014 Tom Gundersen
+
+ Permission is hereby granted, free of charge, to any person
+ obtaining a copy of this software and associated documentation files
+ (the "Software"), to deal in the Software without restriction,
+ including without limitation the rights to use, copy, modify, merge,
+ publish, distribute, sublicense, and/or sell copies of the Software,
+ and to permit persons to whom the Software is furnished to do so,
+ subject to the following conditions:
+
+ The above copyright notice and this permission notice shall be
+ included in all copies or substantial portions of the Software.
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ SOFTWARE.
+***/
+
+#include <assert.h>
+#include <errno.h>
+#include <stdlib.h>
+
+#include "glib-event-glue.h"
+
+typedef struct SDEventSource {
+ GSource source;
+ GPollFD pollfd;
+ sd_event *event;
+} SDEventSource;
+
+static gboolean event_prepare(GSource *source, gint *timeout_) {
+ return sd_event_prepare(((SDEventSource *)source)->event) > 0;
+}
+
+static gboolean event_check(GSource *source) {
+ return sd_event_wait(((SDEventSource *)source)->event, 0) > 0;
+}
+
+static gboolean event_dispatch(GSource *source, GSourceFunc callback, gpointer user_data) {
+ return sd_event_dispatch(((SDEventSource *)source)->event) > 0;
+}
+
+static void event_finalize(GSource *source) {
+ sd_event_unref(((SDEventSource *)source)->event);
+}
+
+static GSourceFuncs event_funcs = {
+ .prepare = event_prepare,
+ .check = event_check,
+ .dispatch = event_dispatch,
+ .finalize = event_finalize,
+};
+
+GSource *g_sd_event_create_source(sd_event *event) {
+ SDEventSource *source;
+
+ source = (SDEventSource *)g_source_new(&event_funcs, sizeof(SDEventSource));
+
+ source->event = sd_event_ref(event);
+ source->pollfd.fd = sd_event_get_fd(event);
+ source->pollfd.events = G_IO_IN | G_IO_HUP | G_IO_ERR;
+
+ g_source_add_poll((GSource *)source, &source->pollfd);
+
+ return (GSource *)source;
+}