mirror of
https://gitlab.freedesktop.org/NetworkManager/NetworkManager.git
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88071abb43
Our coding style recommends C style comments (/* */) instead of C++ (//). Also, systemd (which we partly fork) uses C style comments for the SPDX-License-Identifier. Unify the style. $ sed -i '1 s#// SPDX-License-Identifier: \([^ ]\+\)$#/* SPDX-License-Identifier: \1 */#' -- $(git ls-files -- '*.[hc]' '*.[hc]pp')
113 lines
2.7 KiB
C
113 lines
2.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright (C) 2014 - 2016 Red Hat, Inc.
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*/
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#include "nm-default.h"
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#include "nm-sd.h"
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#include "sd-event.h"
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/*****************************************************************************
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* Integrating sd_event into glib. Taken and adjusted from
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* https://www.freedesktop.org/software/systemd/man/sd_event_get_fd.html
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*****************************************************************************/
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typedef struct SDEventSource {
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GSource source;
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GPollFD pollfd;
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sd_event *event;
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} SDEventSource;
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static gboolean
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event_prepare(GSource *source, int *timeout_)
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{
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return sd_event_prepare(((SDEventSource *) source)->event) > 0;
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}
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static gboolean
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event_check(GSource *source)
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{
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return sd_event_wait(((SDEventSource *) source)->event, 0) > 0;
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}
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static gboolean
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event_dispatch(GSource *source, GSourceFunc callback, gpointer user_data)
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{
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return sd_event_dispatch(((SDEventSource *) source)->event) > 0;
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}
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static void
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event_finalize(GSource *source)
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{
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SDEventSource *s = (SDEventSource *) source;
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sd_event_unref(s->event);
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}
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static SDEventSource *
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event_create_source(sd_event *event)
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{
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static const GSourceFuncs event_funcs = {
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.prepare = event_prepare,
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.check = event_check,
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.dispatch = event_dispatch,
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.finalize = event_finalize,
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};
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SDEventSource *source;
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gboolean is_default_event = FALSE;
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int r;
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if (!event) {
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is_default_event = TRUE;
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r = sd_event_default(&event);
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if (r < 0)
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g_return_val_if_reached(NULL);
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}
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source = (SDEventSource *) g_source_new((GSourceFuncs *) &event_funcs, sizeof(SDEventSource));
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source->event = is_default_event ? g_steal_pointer(&event) : sd_event_ref(event);
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source->pollfd = (GPollFD){
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.fd = sd_event_get_fd(source->event),
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.events = G_IO_IN | G_IO_HUP | G_IO_ERR,
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};
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g_source_add_poll(&source->source, &source->pollfd);
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return source;
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}
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static guint
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event_attach(sd_event *event, GMainContext *context)
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{
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SDEventSource *source;
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guint id;
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source = event_create_source(event);
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g_return_val_if_fail(source, 0);
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id = g_source_attach((GSource *) source, context);
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g_source_unref((GSource *) source);
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nm_assert(id != 0);
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return id;
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}
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guint
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nm_sd_event_attach_default(void)
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{
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return event_attach(NULL, NULL);
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}
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/*****************************************************************************/
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/* ensure that defines in nm-sd.h correspond to the internal defines. */
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#include "nm-sd-adapt-core.h"
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#include "dhcp-lease-internal.h"
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/*****************************************************************************/
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