From c609cb9898dc8dec5dcb0b1d111b3f6b6a5e09d4 Mon Sep 17 00:00:00 2001 From: Tom Gundersen Date: Wed, 27 Aug 2014 19:04:29 +0200 Subject: [PATCH] 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. --- man/glib-event-glue.c | 74 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 74 insertions(+) create mode 100644 man/glib-event-glue.c 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 +#include +#include + +#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; +}