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/*
Copyright (C) 2009 Jiri Moskovcak (jmoskovc@redhat.com)
Copyright (C) 2009 RedHat inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "DBusManager.h"
#include <iostream>
#include <marshal.h>
// only for testing - used by LoopSend()
static gboolean send_message(DBusGConnection *con)
{
DBusMessage *message;
/* Create a new signal "Crash" on the "com.redhat.CrashCatcher" interface,
* from the object "/com/redhat/CrashCatcher". */
message = dbus_message_new_signal("/com/redhat/CrashCatcher/Crash",
"com.redhat.CrashCatcher", "Crash");
if(!message){
fprintf(stderr,"Message creating error");
}
char *progname = "Foo";
/* Append some info to the signal */
dbus_message_append_args(message,DBUS_TYPE_STRING, &progname, DBUS_TYPE_INVALID);
/* get the DBusConnection */
DBusConnection *dbus_con = dbus_g_connection_get_connection(con);
/* Send the signal via low level dbus function coz glib doesn't seem to work */
if(!dbus_connection_send(dbus_con, message, NULL)){
printf("Error while sending message\n");
}
printf("flushing bus %p\n", dbus_con);
dbus_connection_flush(dbus_con);
/* Free the signal */
dbus_message_unref(message);
/* Tell the user we send a signal */
g_print("Message sent!\n");
/* Return TRUE to tell the event loop we want to be called again */
return TRUE;
}
CDBusManager::CDBusManager()
{
GError *error = NULL;
g_type_init();
/* first we need to connect to dbus */
m_nBus = dbus_g_bus_get(DBUS_BUS, &error);
if(!m_nBus)
throw std::string("Couldn't connect to dbus") + error->message;
}
CDBusManager::~CDBusManager()
{
}
/* register name com.redhat.CrashCatcher on dbus */
void CDBusManager::RegisterService()
{
GError *error = NULL;
guint request_name_result;
g_type_init();
// then we need a proxy to talk to dbus
m_nBus_proxy = dbus_g_proxy_new_for_name(m_nBus, DBUS_SERVICE_DBUS,
DBUS_PATH_DBUS,
DBUS_INTERFACE_DBUS);
if(!m_nBus_proxy){
std::cerr << "Error while creating dbus proxy!" << error->message << std::endl;
}
/* and register our name */
if (!dbus_g_proxy_call(m_nBus_proxy, "RequestName", &error,
G_TYPE_STRING, CC_DBUS_NAME,
G_TYPE_UINT, 0,
G_TYPE_INVALID,
G_TYPE_UINT, &request_name_result,
G_TYPE_INVALID))
{
throw std::string("Failed to acquire com.redhat.CrashCatcher:") + error->message ;
}
#ifdef DEBUG
std::cout << "Service running" << std::endl;
#endif
}
void CDBusManager::ConnectToDaemon()
{
GError *error = NULL;
guint request_name_result;
g_type_init();
/* create a proxy object to talk and listen to CC daemon */
m_nCCBus_proxy = dbus_g_proxy_new_for_name_owner(m_nBus, CC_DBUS_NAME,
CC_DBUS_PATH_NOTIFIER,
CC_DBUS_IFACE, &error);
if(!m_nCCBus_proxy){
#ifdef DEBUG
std::cerr << "Couldn't connect to daemon via dbus: " << error->message << std::endl;
#endif
throw std::string(error->message);
}
#ifdef DEBUG
std::cout << "Connected! Waiting for signals\n" << std::endl;
#endif
}
void CDBusManager::RegisterToMessage(const std::string& pMessage, GCallback handler, void * data, GClosureNotify free_data_func)
{
#ifdef DEBUG
std::cout << "Trying to register" << std::endl;
#endif /*DEBUG*/
/* Register dbus signal marshaller */
dbus_g_object_register_marshaller(marshal_VOID__STRING,
G_TYPE_NONE, G_TYPE_STRING,
G_TYPE_INVALID);
dbus_g_proxy_add_signal(m_nCCBus_proxy,"Crash",G_TYPE_STRING, G_TYPE_INVALID);
dbus_g_proxy_connect_signal(m_nCCBus_proxy,"Crash",handler,NULL, NULL);
#ifdef DEBUG
std::cout << "Register done" << std::endl;
#endif /*DEBUG*/
}
bool CDBusManager::GSendMessage(const std::string& pMessage, const std::string& pMessParam)
{
DBusMessage *message;
/* Create a new signal "Crash" on the "com.redhat.CrashCatcher" interface,
* from the object "/com/redhat/CrashCatcher/Crash". */
message = dbus_message_new_signal ("/com/redhat/CrashCatcher/Crash",
"com.redhat.CrashCatcher", pMessage.c_str());
if(!message){
std::cerr << "Message creating error" << std::endl;
}
#ifdef DEBUG
std::cerr << message << std::endl;
#endif
const char *progname = pMessParam.c_str();
/* Append some info to the signal */
dbus_message_append_args(message,DBUS_TYPE_STRING, &progname, DBUS_TYPE_INVALID);
/* Send the signal */
dbus_g_proxy_send(m_nCCBus_proxy, message, NULL);
/* Free the signal */
dbus_message_unref(message);
#ifdef DEBUG
g_print("Message sent!\n");
#endif
/* Return TRUE to tell the event loop we want to be called again */
return TRUE;
}
bool CDBusManager::SendMessage(const std::string& pMessage, const std::string& pMessParam)
{
DBusMessage *message;
const char *progname = pMessParam.c_str();
/* Create a new signal "Crash" on the "com.redhat.CrashCatcher" interface,
* from the object "/com/redhat/CrashCatcher/Crash". */
message = dbus_message_new_signal ("/com/redhat/CrashCatcher/Crash",
"com.redhat.CrashCatcher", pMessage.c_str());
if(!message){
std::cerr << "Message creating error" << std::endl;
}
#ifdef DEBUG
std::cerr << message << std::endl;
#endif
/* Add program name as the message argument */
dbus_message_append_args(message,DBUS_TYPE_STRING, &progname, DBUS_TYPE_INVALID);
/* Send the signal */
DBusConnection *dbus_con = dbus_g_connection_get_connection(m_nBus);
/* Send the signal via low level dbus functio coz glib sucks */
if(!dbus_connection_send(dbus_con, message, NULL)){
throw "Error while sending message";
}
/* flush the connection, otherwise, it won't show on dbus? */
dbus_connection_flush(dbus_con);
/* Free the signal */
dbus_message_unref(message);
#ifdef DEBUG
g_print("Message sent!\n");
#endif
/* Return TRUE to tell the event loop we want to be called again */
return TRUE;
}
// just for testing purposes
void CDBusManager::LoopSend()
{
g_timeout_add(1000, (GSourceFunc)send_message, m_nBus);
}
void CDBusManager::Unregister()
{
std::cerr << "Unregister" << std::endl;
}
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