2 This file is part of PulseAudio.
4 Copyright 2009 Lennart Poettering
6 PulseAudio is free software; you can redistribute it and/or modify
7 it under the terms of the GNU Lesser General Public License as published
8 by the Free Software Foundation; either version 2.1 of the License,
9 or (at your option) any later version.
11 PulseAudio is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public License
17 along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
26 #include <pulse/xmalloc.h>
28 #include <pulsecore/core-error.h>
29 #include <pulsecore/core-util.h>
30 #include <pulsecore/i18n.h>
31 #include <pulsecore/shared.h>
34 #include <pulsecore/dbus-shared.h>
36 #include "reserve-monitor.h"
39 #include "reserve-wrap.h"
41 struct pa_reserve_wrapper {
47 pa_dbus_connection *connection;
48 struct rd_device *device;
52 struct pa_reserve_monitor_wrapper {
58 pa_dbus_connection *connection;
59 struct rm_monitor *monitor;
63 static void reserve_wrapper_free(pa_reserve_wrapper *r) {
68 rd_release(r->device);
71 pa_dbus_connection_unref(r->connection);
74 pa_hook_done(&r->hook);
77 pa_assert_se(pa_shared_remove(r->core, r->shared_name) >= 0);
78 pa_xfree(r->shared_name);
85 static int request_cb(rd_device *d, int forced) {
86 pa_reserve_wrapper *r;
90 pa_assert_se(r = rd_get_userdata(d));
91 pa_assert(PA_REFCNT_VALUE(r) >= 1);
95 k = pa_hook_fire(&r->hook, PA_INT_TO_PTR(forced));
96 pa_log_debug("Device unlock of %s has been requested and %s.", r->shared_name, k < 0 ? "failed" : "succeeded");
98 pa_reserve_wrapper_unref(r);
100 return k < 0 ? -1 : 1;
104 pa_reserve_wrapper* pa_reserve_wrapper_get(pa_core *c, const char *device_name) {
105 pa_reserve_wrapper *r;
111 dbus_error_init(&error);
115 pa_assert(device_name);
117 t = pa_sprintf_malloc("reserve-wrapper@%s", device_name);
119 if ((r = pa_shared_get(c, t))) {
122 pa_assert(PA_REFCNT_VALUE(r) >= 1);
128 r = pa_xnew0(pa_reserve_wrapper, 1);
131 pa_hook_init(&r->hook, r);
134 pa_assert_se(pa_shared_set(c, r->shared_name, r) >= 0);
137 if (!(r->connection = pa_dbus_bus_get(c, DBUS_BUS_SESSION, &error)) || dbus_error_is_set(&error)) {
138 pa_log_debug("Unable to contact D-Bus session bus: %s: %s", error.name, error.message);
140 /* We don't treat this as error here because we want allow PA
141 * to run even when no session bus is available. */
147 pa_dbus_connection_get(r->connection),
149 _("PulseAudio Sound Server"),
155 pa_log_debug("Device '%s' already locked.", device_name);
158 pa_log_debug("Failed to acquire reservation lock on device '%s': %s", device_name, pa_cstrerror(-k));
163 pa_log_debug("Successfully acquired reservation lock on device '%s'", device_name);
165 rd_set_userdata(r->device, r);
169 dbus_error_free(&error);
171 reserve_wrapper_free(r);
179 void pa_reserve_wrapper_unref(pa_reserve_wrapper *r) {
181 pa_assert(PA_REFCNT_VALUE(r) >= 1);
183 if (PA_REFCNT_DEC(r) > 0)
186 reserve_wrapper_free(r);
189 pa_hook* pa_reserve_wrapper_hook(pa_reserve_wrapper *r) {
191 pa_assert(PA_REFCNT_VALUE(r) >= 1);
196 void pa_reserve_wrapper_set_application_device_name(pa_reserve_wrapper *r, const char *name) {
198 pa_assert(PA_REFCNT_VALUE(r) >= 1);
201 rd_set_application_device_name(r->device, name);
205 static void reserve_monitor_wrapper_free(pa_reserve_monitor_wrapper *w) {
210 rm_release(w->monitor);
213 pa_dbus_connection_unref(w->connection);
216 pa_hook_done(&w->hook);
218 if (w->shared_name) {
219 pa_assert_se(pa_shared_remove(w->core, w->shared_name) >= 0);
220 pa_xfree(w->shared_name);
227 static void change_cb(rm_monitor *m) {
228 pa_reserve_monitor_wrapper *w;
232 pa_assert_se(w = rm_get_userdata(m));
233 pa_assert(PA_REFCNT_VALUE(w) >= 1);
237 if ((k = rm_busy(w->monitor)) < 0)
240 pa_hook_fire(&w->hook, PA_INT_TO_PTR(!!k));
241 pa_log_debug("Device lock status of %s changed: %s", w->shared_name, k ? "busy" : "not busy");
243 pa_reserve_monitor_wrapper_unref(w);
247 pa_reserve_monitor_wrapper* pa_reserve_monitor_wrapper_get(pa_core *c, const char *device_name) {
248 pa_reserve_monitor_wrapper *w;
254 dbus_error_init(&error);
258 pa_assert(device_name);
260 t = pa_sprintf_malloc("reserve-monitor-wrapper@%s", device_name);
262 if ((w = pa_shared_get(c, t))) {
265 pa_assert(PA_REFCNT_VALUE(w) >= 1);
271 w = pa_xnew0(pa_reserve_monitor_wrapper, 1);
274 pa_hook_init(&w->hook, w);
277 pa_assert_se(pa_shared_set(c, w->shared_name, w) >= 0);
280 if (!(w->connection = pa_dbus_bus_get(c, DBUS_BUS_SESSION, &error)) || dbus_error_is_set(&error)) {
281 pa_log_debug("Unable to contact D-Bus session bus: %s: %s", error.name, error.message);
283 /* We don't treat this as error here because we want allow PA
284 * to run even when no session bus is available. */
290 pa_dbus_connection_get(w->connection),
295 pa_log_debug("Failed to create watch on device '%s': %s", device_name, pa_cstrerror(-k));
299 pa_log_debug("Successfully create reservation lock monitor for device '%s'", device_name);
301 rm_set_userdata(w->monitor, w);
305 dbus_error_free(&error);
307 reserve_monitor_wrapper_free(w);
315 void pa_reserve_monitor_wrapper_unref(pa_reserve_monitor_wrapper *w) {
317 pa_assert(PA_REFCNT_VALUE(w) >= 1);
319 if (PA_REFCNT_DEC(w) > 0)
322 reserve_monitor_wrapper_free(w);
325 pa_hook* pa_reserve_monitor_wrapper_hook(pa_reserve_monitor_wrapper *w) {
327 pa_assert(PA_REFCNT_VALUE(w) >= 1);
332 bool pa_reserve_monitor_wrapper_busy(pa_reserve_monitor_wrapper *w) {
335 pa_assert(PA_REFCNT_VALUE(w) >= 1);
338 return rm_busy(w->monitor) > 0;