[Spice-devel] [RFC spice-vdagent 11/18] session-info: add ActiveSessionChangeCb

[Jakub Janků]

This is necessary for the following GDBus integration,
which drops session_info_get_fd(). The vdagentd therefore
won't be able to detect session changes using select().
---
 src/vdagentd/console-kit.c        | 2 +-
 src/vdagentd/dummy-session-info.c | 2 +-
 src/vdagentd/session-info.h       | 4 +++-
 src/vdagentd/systemd-login.c      | 2 +-
 src/vdagentd/vdagentd.c           | 8 +++++++-
 5 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/src/vdagentd/console-kit.c b/src/vdagentd/console-kit.c
index 381b97e..ef49db5 100644
--- a/src/vdagentd/console-kit.c
+++ b/src/vdagentd/console-kit.c
@@ -217,7 +217,7 @@ si_dbus_read_signals(struct session_info *info)
     }
 }
 
-struct session_info *session_info_create(int verbose)
+struct session_info *session_info_create(int verbose, ActiveSessionChangeCb cb)
 {
     struct session_info *info;
     DBusError error;
diff --git a/src/vdagentd/dummy-session-info.c b/src/vdagentd/dummy-session-info.c
index 1be27ae..b2306d7 100644
--- a/src/vdagentd/dummy-session-info.c
+++ b/src/vdagentd/dummy-session-info.c
@@ -21,7 +21,7 @@
 
 #include "session-info.h"
 
-struct session_info *session_info_create(int verbose)
+struct session_info *session_info_create(int verbose, ActiveSessionChangeCb cb)
 {
     return NULL;
 }
diff --git a/src/vdagentd/session-info.h b/src/vdagentd/session-info.h
index c8edb86..2f21347 100644
--- a/src/vdagentd/session-info.h
+++ b/src/vdagentd/session-info.h
@@ -28,7 +28,9 @@
 
 struct session_info;
 
-struct session_info *session_info_create(int verbose);
+typedef void (*ActiveSessionChangeCb)(const gchar *session);
+
+struct session_info *session_info_create(int verbose, ActiveSessionChangeCb cb);
 void session_info_destroy(struct session_info *ck);
 
 int session_info_get_fd(struct session_info *ck);
diff --git a/src/vdagentd/systemd-login.c b/src/vdagentd/systemd-login.c
index 9719c0b..88de1a6 100644
--- a/src/vdagentd/systemd-login.c
+++ b/src/vdagentd/systemd-login.c
@@ -225,7 +225,7 @@ si_dbus_read_signals(struct session_info *si)
     }
 }
 
-struct session_info *session_info_create(int verbose)
+struct session_info *session_info_create(int verbose, ActiveSessionChangeCb cb)
 {
     struct session_info *si;
     int r;
diff --git a/src/vdagentd/vdagentd.c b/src/vdagentd/vdagentd.c
index 8893f3b..6d117a8 100644
--- a/src/vdagentd/vdagentd.c
+++ b/src/vdagentd/vdagentd.c
@@ -990,6 +990,12 @@ static void agent_read_complete(struct udscs_connection **connp,
     }
 }
 
+static void active_session_change_cb(const gchar *session)
+{
+    active_session = session;
+    update_active_session_connection(NULL);
+}
+
 /* main */
 
 static void daemonize(void)
@@ -1156,7 +1162,7 @@ int main(int argc, char *argv[])
 #endif
 
     if (want_session_info)
-        session_info = session_info_create(debug);
+        session_info = session_info_create(debug, active_session_change_cb);
     if (!session_info)
         syslog(LOG_WARNING, "no session info, max 1 session agent allowed");
 
-- 
2.17.1