* avahi-client/

   - Create a new function avahi_dbus_bus_get which acts like
     dbus_bus_get but instead gets a private connection, this solves
     the bug where you can't have more than one AvahiClient at once
     because each successive AvahiClient stepped on the DBusWatch
     handling of the previous due to libdbus liking to recycle
     its connections.
     
     Introduced a new configure option --with-dbus-system-address=
     if you set this, you likely want it set to
     unix:path=/some/socket/here

     The default is /var/run/dbus/system_socket_address, because
     this path is hard coded into D-BUS itself, and the 
     DBUS_SYSTEM_BUS_ADDRESS environment variable is now supported
     to change this at runtime which is inline with libdbus.



git-svn-id: file:///home/lennart/svn/public/avahi/trunk@432 941a03a8-eaeb-0310-b9a0-b1bbd8fe43fe

3 files changed, 67 insertions, 19 deletions

diff --git a/avahi-client/Makefile.am b/avahi-client/Makefile.am
index cdc4442..75e18a2 100644
--- a/avahi-client/Makefile.am
+++ b/avahi-client/Makefile.am
@@ -39,7 +39,7 @@ libavahi_client_la_SOURCES = \
 	browser.c \
 	resolver.c
 
-libavahi_client_la_CFLAGS = $(AM_CFLAGS) $(DBUS_CFLAGS)
+libavahi_client_la_CFLAGS = $(AM_CFLAGS) $(DBUS_CFLAGS) -DDBUS_SYSTEM_BUS_DEFAULT_ADDRESS=\"$(DBUS_SYSTEM_BUS_DEFAULT_ADDRESS)\"
 libavahi_client_la_LIBADD = $(AM_LDADD) $(DBUS_LIBS) ../avahi-common/libavahi-common.la ../avahi-common/libdbus-common-pic.la
 libavahi_client_la_LDFLAGS = $(AM_LDFLAGS) -export-dynamic -version-info 1:0:1
 
diff --git a/avahi-client/client.c b/avahi-client/client.c
index bb623c0..27f7462 100644
--- a/avahi-client/client.c
+++ b/avahi-client/client.c
@@ -232,6 +232,43 @@ fail:
     return e;
 }
 
+/* This function acts like dbus_bus_get but creates a private
+ * connection instead */
+static DBusConnection*
+avahi_dbus_bus_get (DBusBusType type, DBusError *error)
+{
+    DBusConnection *conn;
+    char *env_addr;
+
+    env_addr = getenv ("DBUS_SYSTEM_BUS_ADDRESS");
+
+    if (env_addr == NULL || (strcmp (env_addr, "") == 0))
+    {
+        env_addr = DBUS_SYSTEM_BUS_DEFAULT_ADDRESS;
+    }
+
+    conn = dbus_connection_open_private (env_addr, error);
+
+    if (!conn)
+    {
+        printf ("Failed to open private connection: %s\n", error->message);
+        return NULL;
+    }
+
+    dbus_connection_set_exit_on_disconnect (conn, TRUE);
+
+    if (!dbus_bus_register (conn, error))
+    {
+        printf ("Failed to register connection\n");
+        dbus_connection_close (conn);
+        dbus_connection_unref (conn);
+
+        return NULL;
+    }
+
+    return conn;
+}
+
 AvahiClient *avahi_client_new(const AvahiPoll *poll_api, AvahiClientCallback callback, void *userdata, int *ret_error) {
     AvahiClient *client = NULL;
     DBusError error;
@@ -261,7 +298,7 @@ AvahiClient *avahi_client_new(const AvahiPoll *poll_api, AvahiClientCallback cal
     AVAHI_LLIST_HEAD_INIT(AvahiServiceTypeBrowser, client->service_type_browsers);
     AVAHI_LLIST_HEAD_INIT(AvahiServiceResolver, client->service_resolvers);
 
-    if (!(client->bus = dbus_bus_get(DBUS_BUS_SYSTEM, &error)) ||
+    if (!(client->bus = avahi_dbus_bus_get(DBUS_BUS_SYSTEM, &error)) ||
         dbus_error_is_set (&error))
         goto fail;
 
diff --git a/configure.ac b/configure.ac
index 2eca925..d53dc76 100644
--- a/configure.ac
+++ b/configure.ac
@@ -184,8 +184,8 @@ if test "x$HAVE_GTK" = "xyes" ; then
         AC_SUBST(GLADE20_CFLAGS)
         AC_SUBST(GLADE20_LIBS)
 
-	    interfacesdir="${datadir}/${PACKAGE}/interfaces/"
-	    AC_SUBST(interfacesdir)
+        interfacesdir="${datadir}/${PACKAGE}/interfaces/"
+        AC_SUBST(interfacesdir)
 fi
 AM_CONDITIONAL(HAVE_GTK, test "x$HAVE_GTK" = "xyes")
 
@@ -202,21 +202,31 @@ AC_ARG_ENABLE(dbus,
         [HAVE_DBUS=yes]) 
 
 AC_ARG_WITH(dbus-sys, AS_HELP_STRING([--with-dbus-sys=<dir>], [where D-BUS system.d directory is]))
+AC_ARG_WITH(dbus-system-socket, AS_HELP_STRING([--with-dbus-system-address=<address>], [where the dbus system socket is, you probably want to put unix:path= at the start]))
 
 if test "x$HAVE_DBUS" = "xyes" ; then
-	AC_DEFINE(HAVE_DBUS, 1, [Whether we have D-BUS or not])
+    AC_DEFINE(HAVE_DBUS, 1, [Whether we have D-BUS or not])
 
     PKG_CHECK_MODULES(DBUS, [ dbus-1 >= 0.30 ])
     DBUS_CFLAGS="$DBUS_CFLAGS -DDBUS_API_SUBJECT_TO_CHANGE"
     AC_SUBST(DBUS_CFLAGS)
-	AC_SUBST(DBUS_LIBS)
-
-	if ! test -z "$with_dbus_sys" ; then
-    	   DBUS_SYS_DIR="$with_dbus_sys"
-	else
-	       DBUS_SYS_DIR="${sysconfdir}/dbus-1/system.d"
-	fi
-	AC_SUBST(DBUS_SYS_DIR)
+    AC_SUBST(DBUS_LIBS)
+
+    if ! test -z "$with_dbus_sys" ; then
+        DBUS_SYS_DIR="$with_dbus_sys"
+    else
+        DBUS_SYS_DIR="${sysconfdir}/dbus-1/system.d"
+    fi
+    AC_SUBST(DBUS_SYS_DIR)
+
+    if ! test -z "$with_dbus_system_address" ; then
+        DBUS_SYSTEM_BUS_DEFAULT_ADDRESS="$with_dbus_system_address"
+    else
+        # Note this default path is hardcoded in D-BUS and should
+        # not use $localstatedir
+        DBUS_SYSTEM_BUS_DEFAULT_ADDRESS="unix:path=/var/run/dbus/system_bus_socket"
+    fi
+    AC_SUBST(DBUS_SYSTEM_BUS_DEFAULT_ADDRESS)
     
 fi
 AM_CONDITIONAL(HAVE_DBUS, test "x$HAVE_DBUS" = "xyes")
@@ -265,12 +275,12 @@ AM_CONDITIONAL(HAVE_LIBDAEMON, test "x$HAVE_LIBDAEMON" = "xyes")
 # Python stuff
 #
 AC_ARG_ENABLE(python,
-	AS_HELP_STRING([--disable-python], [Disable scripts that depends on python]),
-	[case "${enableval}" in
-	      yes) HAVE_PYTHON=yes ;;
-	      no)  HAVE_PYTHON=no ;;
-	      *) AC_MSG_ERROR([bad value ${enableval} for --enable-python]) ;;
-	esac],[HAVE_PYTHON=yes])
+    AS_HELP_STRING([--disable-python], [Disable scripts that depends on python]),
+    [case "${enableval}" in
+          yes) HAVE_PYTHON=yes ;;
+          no)  HAVE_PYTHON=no ;;
+          *) AC_MSG_ERROR([bad value ${enableval} for --enable-python]) ;;
+    esac],[HAVE_PYTHON=yes])
 
 if test "x$HAVE_PYTHON" = "xyes" ; then
     AM_PATH_PYTHON([2.4])
@@ -380,6 +390,7 @@ echo "
     sysconfdir:             ${sysconfdir}
     dbus-1 system.d dir:    ${DBUS_SYS_DIR}
     dbus-1 version:         `pkg-config dbus-1 --modversion`
+    dbus-1 system socket    ${DBUS_SYSTEM_BUS_DEFAULT_ADDRESS}
     compiler:               ${CC}
     cflags:                 ${CFLAGS}
     Enable GLIB:            ${HAVE_GLIB}