From f2a15d86ccd0729e1442f40679cd393417e1e177 Mon Sep 17 00:00:00 2001
From: David Herrmann <dh.herrmann@gmail.com>
Date: Mon, 22 Sep 2014 17:37:21 +0200
Subject: [PATCH] terminal: allow user-context to be retrieved/stored

Add "userdata" storage to a bunch of external objects, namely displays and
sessions. Furthermore, add some property retrieval helpers.

This is required if we want external API users to not duplicate our own
object hashtables, but retrieve context from the objects themselves.
---
 src/libsystemd-terminal/grdev-internal.h   |  1 +
 src/libsystemd-terminal/grdev.c            | 18 ++++++++++++++++++
 src/libsystemd-terminal/grdev.h            |  5 +++++
 src/libsystemd-terminal/sysview-internal.h |  1 +
 src/libsystemd-terminal/sysview.c          | 18 ++++++++++++++++++
 src/libsystemd-terminal/sysview.h          |  4 ++++
 6 files changed, 47 insertions(+)

diff --git a/src/libsystemd-terminal/grdev-internal.h b/src/libsystemd-terminal/grdev-internal.h
index f5915b1..ee18269 100644
--- a/src/libsystemd-terminal/grdev-internal.h
+++ b/src/libsystemd-terminal/grdev-internal.h
@@ -94,6 +94,7 @@ DEFINE_TRIVIAL_CLEANUP_FUNC(grdev_tile*, grdev_tile_free);
 struct grdev_display {
         grdev_session *session;
         char *name;
+        void *userdata;
 
         size_t n_leafs;
         grdev_tile *tile;
diff --git a/src/libsystemd-terminal/grdev.c b/src/libsystemd-terminal/grdev.c
index 43d0c7c..e34112e 100644
--- a/src/libsystemd-terminal/grdev.c
+++ b/src/libsystemd-terminal/grdev.c
@@ -282,6 +282,24 @@ grdev_display *grdev_display_free(grdev_display *display) {
         return NULL;
 }
 
+void grdev_display_set_userdata(grdev_display *display, void *userdata) {
+        assert(display);
+
+        display->userdata = userdata;
+}
+
+void *grdev_display_get_userdata(grdev_display *display) {
+        assert_return(display, NULL);
+
+        return display->userdata;
+}
+
+const char *grdev_display_get_name(grdev_display *display) {
+        assert_return(display, NULL);
+
+        return display->name;
+}
+
 bool grdev_display_is_enabled(grdev_display *display) {
         return display && display->enabled;
 }
diff --git a/src/libsystemd-terminal/grdev.h b/src/libsystemd-terminal/grdev.h
index 9924a25..5f745aa 100644
--- a/src/libsystemd-terminal/grdev.h
+++ b/src/libsystemd-terminal/grdev.h
@@ -108,6 +108,11 @@ struct grdev_display_target {
         const grdev_fb *fb;
 };
 
+void grdev_display_set_userdata(grdev_display *display, void *userdata);
+void *grdev_display_get_userdata(grdev_display *display);
+
+const char *grdev_display_get_name(grdev_display *display);
+
 bool grdev_display_is_enabled(grdev_display *display);
 void grdev_display_enable(grdev_display *display);
 void grdev_display_disable(grdev_display *display);
diff --git a/src/libsystemd-terminal/sysview-internal.h b/src/libsystemd-terminal/sysview-internal.h
index 9299fab..d9f7fe3 100644
--- a/src/libsystemd-terminal/sysview-internal.h
+++ b/src/libsystemd-terminal/sysview-internal.h
@@ -64,6 +64,7 @@ struct sysview_session {
         sysview_seat *seat;
         char *name;
         char *path;
+        void *userdata;
 
         sd_bus_slot *slot_take_control;
 
diff --git a/src/libsystemd-terminal/sysview.c b/src/libsystemd-terminal/sysview.c
index 5b623c1..208c6ce 100644
--- a/src/libsystemd-terminal/sysview.c
+++ b/src/libsystemd-terminal/sysview.c
@@ -104,6 +104,12 @@ sysview_device *sysview_device_free(sysview_device *device) {
         return NULL;
 }
 
+const char *sysview_device_get_name(sysview_device *device) {
+        assert_return(device, NULL);
+
+        return device->name;
+}
+
 unsigned int sysview_device_get_type(sysview_device *device) {
         assert_return(device, (unsigned)-1);
 
@@ -243,6 +249,18 @@ sysview_session *sysview_session_free(sysview_session *session) {
         return NULL;
 }
 
+void sysview_session_set_userdata(sysview_session *session, void *userdata) {
+        assert(session);
+
+        session->userdata = userdata;
+}
+
+void *sysview_session_get_userdata(sysview_session *session) {
+        assert_return(session, NULL);
+
+        return session->userdata;
+}
+
 const char *sysview_session_get_name(sysview_session *session) {
         assert_return(session, NULL);
 
diff --git a/src/libsystemd-terminal/sysview.h b/src/libsystemd-terminal/sysview.h
index 4d800f8..f691e49 100644
--- a/src/libsystemd-terminal/sysview.h
+++ b/src/libsystemd-terminal/sysview.h
@@ -116,6 +116,7 @@ enum {
         SYSVIEW_DEVICE_CNT
 };
 
+const char *sysview_device_get_name(sysview_device *device);
 unsigned int sysview_device_get_type(sysview_device *device);
 struct udev_device *sysview_device_get_ud(sysview_device *device);
 
@@ -123,6 +124,9 @@ struct udev_device *sysview_device_get_ud(sysview_device *device);
  * Sessions
  */
 
+void sysview_session_set_userdata(sysview_session *session, void *userdata);
+void *sysview_session_get_userdata(sysview_session *session);
+
 const char *sysview_session_get_name(sysview_session *session);
 
 int sysview_session_take_control(sysview_session *session);
-- 
2.7.4