From 86cf33e33539bbaf5032e6599cafca0fddf3110b Mon Sep 17 00:00:00 2001
From: cedric <cedric@7cbeb6ba-43b4-40fd-8cce-4c39aea84d33>
Date: Mon, 30 May 2011 16:52:19 +0000
Subject: [PATCH] ecore: add ecore_pipe_freeze/thraw.

git-svn-id: svn+ssh://svn.enlightenment.org/var/svn/e/trunk/ecore@59823 7cbeb6ba-43b4-40fd-8cce-4c39aea84d33
---
 ChangeLog                  |  9 +++++++--
 src/lib/ecore/Ecore.h      |  2 ++
 src/lib/ecore/ecore_pipe.c | 46 ++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 55 insertions(+), 2 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 62ec54d..34d9b51 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -192,16 +192,21 @@
         * Fix Ecore_X shadow tree search handling to respect shape and
         shape input of windows.
 
-2011-05-20 Daniel Juyung Seo (SeoZ)
+2011-05-20  Daniel Juyung Seo (SeoZ)
 
         * Ecore ecore_main.c: Fixed ecore_main_loop
         (_ecore_main_loop_iterate_internal). This fixes fd handler pending
         issue when ecore_idler callback adds ecore_job/event.
         * Ecore ecore_main.c: Refactoring _ecore_main_loop_iterate_internal().
 
-2011-05-27 Gustavo Sverzut Barbieri (k-s)
+2011-05-27  Gustavo Sverzut Barbieri (k-s)
 
 	* Ecore_X: introduce ecore_x_screen_size_get()
 	* Ecore_Evas: be safer when returning Ecore_Evas* from
 	  ecore_evas_ecore_evas_get()
 	* Ecore_Evas: introduce ecore_evas_screen_geometry_get()
+
+2011-05-30  Cedric Bail
+
+	* Add ecore_pipe_freeze/thraw to suspend and restart watching the pipe
+	inside the main loop.
diff --git a/src/lib/ecore/Ecore.h b/src/lib/ecore/Ecore.h
index 84a3214..de62746 100644
--- a/src/lib/ecore/Ecore.h
+++ b/src/lib/ecore/Ecore.h
@@ -786,6 +786,8 @@ extern "C" {
    EAPI Eina_Bool    ecore_pipe_write(Ecore_Pipe *p, const void *buffer, unsigned int nbytes);
    EAPI void         ecore_pipe_write_close(Ecore_Pipe *p);
    EAPI void         ecore_pipe_read_close(Ecore_Pipe *p);
+   EAPI void         ecore_pipe_thraw(Ecore_Pipe *p);
+   EAPI void         ecore_pipe_freeze(Ecore_Pipe *p);
 
   /**
    * @}
diff --git a/src/lib/ecore/ecore_pipe.c b/src/lib/ecore/ecore_pipe.c
index bd6efa1..a3fe7c9 100644
--- a/src/lib/ecore/ecore_pipe.c
+++ b/src/lib/ecore/ecore_pipe.c
@@ -368,6 +368,52 @@ ecore_pipe_read_close(Ecore_Pipe *p)
 }
 
 /**
+ * Stop monitoring if necessary the pipe for reading. See ecore_pipe_thraw()
+ * for monitoring it again.
+ *
+ * @param p The Ecore_Pipe object.
+ */
+EAPI void
+ecore_pipe_freeze(Ecore_Pipe *p)
+{
+   if (!ECORE_MAGIC_CHECK(p, ECORE_MAGIC_PIPE))
+     {
+        ECORE_MAGIC_FAIL(p, ECORE_MAGIC_PIPE, "ecore_pipe_read_close");
+        return;
+     }
+   if (p->fd_handler)
+     {
+        ecore_main_fd_handler_del(p->fd_handler);
+        p->fd_handler = NULL;
+     }
+}
+
+/**
+ * Start monitoring again the pipe for reading. See ecore_pipe_freeze() for
+ * stopping the monitoring activity. This will not work if
+ * ecore_pipe_read_close() was previously called on the same pipe.
+ *
+ * @param p The Ecore_Pipe object.
+ */
+EAPI void
+ecore_pipe_thraw(Ecore_Pipe *p)
+{
+   if (!ECORE_MAGIC_CHECK(p, ECORE_MAGIC_PIPE))
+     {
+        ECORE_MAGIC_FAIL(p, ECORE_MAGIC_PIPE, "ecore_pipe_read_close");
+        return;
+     }
+   if (!p->fd_handler && p->fd_read != PIPE_FD_INVALID)
+     {
+        p->fd_handler = ecore_main_fd_handler_add(p->fd_read,
+                                                  ECORE_FD_READ,
+                                                  _ecore_pipe_read,
+                                                  p,
+                                                  NULL, NULL);
+     }
+}
+
+/**
  * Close the write end of an Ecore_Pipe object created with ecore_pipe_add().
  *
  * @param p The Ecore_Pipe object.
-- 
2.7.4