use plain libdbus instead of GDBus

This commit is contained in:
Wim Taymans 2016-11-24 18:17:29 +01:00
parent 4e94743906
commit 7ecfc28d0f
4 changed files with 318 additions and 89 deletions

View file

@ -127,6 +127,7 @@ mathlib = cc.find_library('m', required : false)
rt_lib = cc.find_library('rt', required : false) # clock_gettime
dl_lib = cc.find_library('dl', required : false)
pthread_lib = cc.find_library('pthread', required : true)
dbus_dep = dependency('dbus-1')
gst_dep = [dependency('gstreamer-1.0'),
dependency('gstreamer-plugins-base-1.0'),
dependency('gstreamer-video-1.0'),

View file

@ -52,7 +52,7 @@ libpinos = shared_library('pinos', pinos_sources,
include_directories : [configinc, spa_inc],
link_with : spalib,
install : true,
dependencies : [glib_dep, gio_dep, mathlib, pthread_lib],
dependencies : [glib_dep, dbus_dep, mathlib, pthread_lib],
)
pinos_dep = declare_dependency(link_with : libpinos,

View file

@ -16,135 +16,363 @@
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
/***
Copyright 2009 Lennart Poettering
Copyright 2010 David Henningsson <diwic@ubuntu.com>
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 <sys/syscall.h>
#include <string.h>
#include <errno.h>
#include <stdlib.h>
#include <stdbool.h>
#include <dbus/dbus.h>
#include <pinos/client/log.h>
#include "rtkit.h"
#include <gio/gio.h>
struct _PinosRTKitBus {
GDBusConnection *bus;
DBusConnection *bus;
};
static pid_t _gettid(void) {
return (pid_t) syscall(SYS_gettid);
}
static int
translate_error (GError *error)
{
const gchar *name = g_dbus_error_get_remote_error (error);
if (strcmp (name, "org.freedesktop.DBus.Error.NoMemory") == 0)
return -ENOMEM;
if (strcmp (name, "org.freedesktop.DBus.Error.ServiceUnknown") == 0 ||
strcmp (name, "org.freedesktop.DBus.Error.NameHasNoOwner") == 0)
return -ENOENT;
if (strcmp (name, "org.freedesktop.DBus.Error.AccessDenied") == 0 ||
strcmp (name, "org.freedesktop.DBus.Error.AuthFailed") == 0)
return -EACCES;
return -EIO;
}
PinosRTKitBus *
pinos_rtkit_bus_get_system (void)
pinos_rtkit_bus_get_system (void)
{
PinosRTKitBus *bus;
DBusError error;
bus = g_slice_new (PinosRTKitBus);
bus->bus = g_bus_get_sync (G_BUS_TYPE_SYSTEM, NULL, NULL);
dbus_error_init(&error);
bus = calloc (1, sizeof (PinosRTKitBus));
bus->bus = dbus_bus_get_private (DBUS_BUS_SYSTEM, &error);
if (bus->bus == NULL)
goto error;
dbus_connection_set_exit_on_disconnect (bus->bus, false);
return bus;
error:
pinos_log_error ("Failed to connect to system bus: %s", error.message);
dbus_error_free (&error);
return NULL;
}
void
pinos_rtkit_bus_free (PinosRTKitBus *system_bus)
{
g_object_unref (system_bus->bus);
g_slice_free (PinosRTKitBus, system_bus);
dbus_connection_close (system_bus->bus);
dbus_connection_unref (system_bus->bus);
free (system_bus);
}
#if defined(__linux__) && !defined(__ANDROID__)
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/syscall.h>
static pid_t _gettid(void) {
return (pid_t) syscall(SYS_gettid);
}
static int translate_error(const char *name) {
if (0 == strcmp (name, DBUS_ERROR_NO_MEMORY))
return -ENOMEM;
if (0 == strcmp (name, DBUS_ERROR_SERVICE_UNKNOWN) ||
0 == strcmp (name, DBUS_ERROR_NAME_HAS_NO_OWNER))
return -ENOENT;
if (0 == strcmp (name, DBUS_ERROR_ACCESS_DENIED) ||
0 == strcmp (name, DBUS_ERROR_AUTH_FAILED))
return -EACCES;
return -EIO;
}
static long long rtkit_get_int_property(PinosRTKitBus *connection, const char* propname, long long* propval) {
DBusMessage *m = NULL, *r = NULL;
DBusMessageIter iter, subiter;
dbus_int64_t i64;
dbus_int32_t i32;
DBusError error;
int current_type;
long long ret;
const char * interfacestr = "org.freedesktop.RealtimeKit1";
dbus_error_init(&error);
if (!(m = dbus_message_new_method_call(
RTKIT_SERVICE_NAME,
RTKIT_OBJECT_PATH,
"org.freedesktop.DBus.Properties",
"Get"))) {
ret = -ENOMEM;
goto finish;
}
if (!dbus_message_append_args(
m,
DBUS_TYPE_STRING, &interfacestr,
DBUS_TYPE_STRING, &propname,
DBUS_TYPE_INVALID)) {
ret = -ENOMEM;
goto finish;
}
if (!(r = dbus_connection_send_with_reply_and_block(connection->bus, m, -1, &error))) {
ret = translate_error(error.name);
goto finish;
}
if (dbus_set_error_from_message(&error, r)) {
ret = translate_error(error.name);
goto finish;
}
ret = -EBADMSG;
dbus_message_iter_init(r, &iter);
while ((current_type = dbus_message_iter_get_arg_type (&iter)) != DBUS_TYPE_INVALID) {
if (current_type == DBUS_TYPE_VARIANT) {
dbus_message_iter_recurse(&iter, &subiter);
while ((current_type = dbus_message_iter_get_arg_type (&subiter)) != DBUS_TYPE_INVALID) {
if (current_type == DBUS_TYPE_INT32) {
dbus_message_iter_get_basic(&subiter, &i32);
*propval = i32;
ret = 0;
}
if (current_type == DBUS_TYPE_INT64) {
dbus_message_iter_get_basic(&subiter, &i64);
*propval = i64;
ret = 0;
}
dbus_message_iter_next (&subiter);
}
}
dbus_message_iter_next (&iter);
}
finish:
if (m)
dbus_message_unref(m);
if (r)
dbus_message_unref(r);
dbus_error_free(&error);
return ret;
}
int pinos_rtkit_get_max_realtime_priority(PinosRTKitBus *connection) {
long long retval;
int err;
err = rtkit_get_int_property(connection, "MaxRealtimePriority", &retval);
return err < 0 ? err : retval;
}
int pinos_rtkit_get_min_nice_level(PinosRTKitBus *connection, int* min_nice_level) {
long long retval;
int err;
err = rtkit_get_int_property(connection, "MinNiceLevel", &retval);
if (err >= 0)
*min_nice_level = retval;
return err;
}
long long pinos_rtkit_get_rttime_usec_max(PinosRTKitBus *connection) {
long long retval;
int err;
err = rtkit_get_int_property(connection, "RTTimeUSecMax", &retval);
return err < 0 ? err : retval;
}
int
pinos_rtkit_make_realtime (PinosRTKitBus *system_bus,
pinos_rtkit_make_realtime (PinosRTKitBus *connection,
pid_t thread,
int priority)
{
GVariant *v;
GError *error = NULL;
DBusMessage *m = NULL, *r = NULL;
dbus_uint64_t u64;
dbus_uint32_t u32;
DBusError error;
int ret;
if (thread == 0)
thread = _gettid();
dbus_error_init(&error);
v = g_dbus_connection_call_sync (system_bus->bus,
RTKIT_SERVICE_NAME,
RTKIT_OBJECT_PATH,
"org.freedesktop.RealtimeKit1",
"MakeThreadRealtime",
g_variant_new ("(tu)",
(guint64) thread,
(guint32) priority),
NULL,
G_DBUS_CALL_FLAGS_NONE,
-1,
NULL,
&error);
if (v == NULL)
return translate_error (error);
if (thread == 0)
thread = _gettid();
g_variant_unref (v);
if (!(m = dbus_message_new_method_call(
RTKIT_SERVICE_NAME,
RTKIT_OBJECT_PATH,
"org.freedesktop.RealtimeKit1",
"MakeThreadRealtime"))) {
ret = -ENOMEM;
goto finish;
}
return 0;
u64 = (dbus_uint64_t) thread;
u32 = (dbus_uint32_t) priority;
if (!dbus_message_append_args(
m,
DBUS_TYPE_UINT64, &u64,
DBUS_TYPE_UINT32, &u32,
DBUS_TYPE_INVALID)) {
ret = -ENOMEM;
goto finish;
}
if (!(r = dbus_connection_send_with_reply_and_block(connection->bus, m, -1, &error))) {
ret = translate_error(error.name);
goto finish;
}
if (dbus_set_error_from_message(&error, r)) {
ret = translate_error(error.name);
goto finish;
}
ret = 0;
finish:
if (m)
dbus_message_unref(m);
if (r)
dbus_message_unref(r);
dbus_error_free(&error);
return ret;
}
int
pinos_rtkit_make_high_priority (PinosRTKitBus *system_bus,
pinos_rtkit_make_high_priority (PinosRTKitBus *connection,
pid_t thread,
int nice_level)
{
GVariant *v;
GError *error = NULL;
DBusMessage *m = NULL, *r = NULL;
dbus_uint64_t u64;
dbus_int32_t s32;
DBusError error;
int ret;
if (thread == 0)
thread = _gettid();
dbus_error_init(&error);
v = g_dbus_connection_call_sync (system_bus->bus,
RTKIT_SERVICE_NAME,
RTKIT_OBJECT_PATH,
"org.freedesktop.RealtimeKit1",
"MakeThreadHighPriority",
g_variant_new ("(tu)",
(guint64) thread,
(guint32) nice_level),
NULL,
G_DBUS_CALL_FLAGS_NONE,
-1,
NULL,
&error);
if (v == NULL)
return translate_error (error);
g_variant_unref (v);
if (thread == 0)
thread = _gettid();
return 0;
if (!(m = dbus_message_new_method_call(
RTKIT_SERVICE_NAME,
RTKIT_OBJECT_PATH,
"org.freedesktop.RealtimeKit1",
"MakeThreadHighPriority"))) {
ret = -ENOMEM;
goto finish;
}
u64 = (dbus_uint64_t) thread;
s32 = (dbus_int32_t) nice_level;
if (!dbus_message_append_args(
m,
DBUS_TYPE_UINT64, &u64,
DBUS_TYPE_INT32, &s32,
DBUS_TYPE_INVALID)) {
ret = -ENOMEM;
goto finish;
}
if (!(r = dbus_connection_send_with_reply_and_block(connection->bus, m, -1, &error))) {
ret = translate_error(error.name);
goto finish;
}
if (dbus_set_error_from_message(&error, r)) {
ret = translate_error(error.name);
goto finish;
}
ret = 0;
finish:
if (m)
dbus_message_unref(m);
if (r)
dbus_message_unref(r);
dbus_error_free(&error);
return ret;
}
int pinos_rtkit_get_max_realtime_priority (PinosRTKitBus *system_bus)
{
return 0;
#else
int pinos_rtkit_make_realtime(PinosRTKitBus *connection, pid_t thread, int priority) {
return -ENOTSUP;
}
int pinos_rtkit_get_min_nice_level (PinosRTKitBus *system_bus, int* min_nice_level)
{
return 0;
int pinos_rtkit_make_high_priority(PinosRTKitBus *connection, pid_t thread, int nice_level) {
return -ENOTSUP;
}
/* Return the maximum value of RLIMIT_RTTIME to set before attempting a
* realtime request. A negative value is an errno style error code.
*/
long long pinos_rtkit_get_rttime_usec_max (PinosRTKitBus *system_bus)
{
return 0;
int pinos_rtkit_get_max_realtime_priority(PinosRTKitBus *connection) {
return -ENOTSUP;
}
int pinos_rtkit_get_min_nice_level(PinosRTKitBus *connection, int* min_nice_level) {
return -ENOTSUP;
}
long long pinos_rtkit_get_rttime_usec_max(PinosRTKitBus *connection) {
return -ENOTSUP;
}
#endif

View file

@ -21,7 +21,7 @@ pinos_module_protocol_dbus = shared_library('pinos-module-protocol-dbus', [ 'mod
link_with : spalib,
install : true,
install_dir : '@0@/pinos-0.1'.format(get_option('libdir')),
dependencies : [gobject_dep, gmodule_dep, glib_dep, gio_dep, mathlib, dl_lib, pinos_dep, pinoscore_dep],
dependencies : [glib_dep, gio_dep, mathlib, dl_lib, pinos_dep, pinoscore_dep],
)
pinos_module_protocol_native = shared_library('pinos-module-protocol-native', [ 'module-protocol-native.c' ],