+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: t -*-*/
+
#ifndef fooreservehfoo
#define fooreservehfoo
#include <dbus/dbus.h>
#include <inttypes.h>
+#ifdef __cplusplus
+extern "C" {
+#endif
+
typedef struct rd_device rd_device;
/* Prototype for a function that is called whenever someone else wants
- * your app to release the device you having locked. A return value <=
- * 0 denies the request, a positive return value agrees to it. Before
- * returning your application should close the device in question
- * completely to make sure the new application may acceess it. */
+ * your application to release the device it has locked. A return
+ * value <= 0 denies the request, a positive return value agrees to
+ * it. Before returning your application should close the device in
+ * question completely to make sure the new application may access
+ * it. */
typedef int (*rd_request_cb_t)(
rd_device *d,
int forced); /* Non-zero if an application forcibly took the lock away without asking. If this is the case then the return value of this call is ignored. */
* the error was caused D-Bus. */
int rd_acquire(
rd_device **d, /* On success a pointer to the newly allocated rd_device object will be filled in here */
- DBusConnection *connection,
+ DBusConnection *connection, /* Session bus (when D-Bus learns about user busses we should switch to user busses) */
const char *device_name, /* The device to lock, e.g. "Audio0" */
const char *application_name, /* A human readable name of the application, e.g. "PulseAudio Sound Server" */
int32_t priority, /* The priority for this application. If unsure use 0 */
- rd_request_cb_t request_cb, /* Will be called whenever someone asks that this device shall be released. May be NULL if priority is INT32_MAX */
+ rd_request_cb_t request_cb, /* Will be called whenever someone requests that this device shall be released. May be NULL if priority is INT32_MAX */
DBusError *error); /* If we fail due to a D-Bus related issue the error will be filled in here. May be NULL. */
-/* Unlock (if needed) and destroy a rd_device object again */
+/* Unlock (if needed) and destroy an rd_device object again */
void rd_release(rd_device *d);
-/* Set the application device name for a rd_device object Returns 0 on
- * success, a negative errno style return value on error. */
+/* Set the application device name for an rd_device object. Returns 0
+ * on success, a negative errno style return value on error. */
int rd_set_application_device_name(rd_device *d, const char *name);
-/* Attach a userdata pointer to a rd_device */
+/* Attach a userdata pointer to an rd_device */
void rd_set_userdata(rd_device *d, void *userdata);
-/* Query the userdata pointer from a rd_device. Returns NULL if no
+/* Query the userdata pointer from an rd_device. Returns NULL if no
* userdata was set. */
void* rd_get_userdata(rd_device *d);
+/* Helper function to get the unique connection name owning a given
+ * name. Returns 0 on success, a negative errno style return value on
+ * error. */
+int rd_dbus_get_name_owner(
+ DBusConnection *connection,
+ const char *name,
+ char **name_owner,
+ DBusError *error);
+
+#ifdef __cplusplus
+}
+#endif
+
#endif