Mesa (master): trace: Only close trace files on exit.

[Jose Fonseca]

Module: Mesa
Branch: master
Commit: 28e6a272fc0d16b2c3c8972f8936126ebf0aa764
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=28e6a272fc0d16b2c3c8972f8936126ebf0aa764

Author: José Fonseca <jfonseca at vmware.com>
Date:   Thu Apr 25 14:18:33 2013 +0100

trace: Only close trace files on exit.

Many applications don't exit cleanly, others may create and destroy a
screen multiple times, so we only write </trace> tag and close at exit
time.

---

 src/gallium/drivers/trace/tr_dump.c   |   19 ++++---------------
 src/gallium/drivers/trace/tr_dump.h   |    1 -
 src/gallium/drivers/trace/tr_screen.c |    2 --
 3 files changed, 4 insertions(+), 18 deletions(-)

diff --git a/src/gallium/drivers/trace/tr_dump.c b/src/gallium/drivers/trace/tr_dump.c
index 826ce5b..7111e0d 100644
--- a/src/gallium/drivers/trace/tr_dump.c
+++ b/src/gallium/drivers/trace/tr_dump.c
@@ -59,7 +59,6 @@
 
 static boolean close_stream = FALSE;
 static FILE *stream = NULL;
-static unsigned refcount = 0;
 pipe_static_mutex(call_mutex);
 static long unsigned call_no = 0;
 static boolean dumping = FALSE;
@@ -234,7 +233,6 @@ trace_dump_trace_close(void)
          close_stream = FALSE;
          stream = NULL;
       }
-      refcount = 0;
       call_no = 0;
    }
 }
@@ -283,15 +281,13 @@ trace_dump_trace_begin(void)
       trace_dump_writes("<?xml-stylesheet type='text/xsl' href='trace.xsl'?>\n");
       trace_dump_writes("<trace version='0.1'>\n");
 
-#if defined(PIPE_OS_LINUX) || defined(PIPE_OS_BSD) || defined(PIPE_OS_SOLARIS) || defined(PIPE_OS_APPLE)
-      /* Linux applications rarely cleanup GL / Gallium resources so catch
-       * application exit here */
+      /* Many applications don't exit cleanly, others may create and destroy a
+       * screen multiple times, so we only write </trace> tag and close at exit
+       * time.
+       */
       atexit(trace_dump_trace_close);
-#endif
    }
 
-   ++refcount;
-
    return TRUE;
 }
 
@@ -300,13 +296,6 @@ boolean trace_dump_trace_enabled(void)
    return stream ? TRUE : FALSE;
 }
 
-void trace_dump_trace_end(void)
-{
-   if(stream)
-      if(!--refcount)
-         trace_dump_trace_close();
-}
-
 /*
  * Call lock
  */
diff --git a/src/gallium/drivers/trace/tr_dump.h b/src/gallium/drivers/trace/tr_dump.h
index ef01292..4737a93 100644
--- a/src/gallium/drivers/trace/tr_dump.h
+++ b/src/gallium/drivers/trace/tr_dump.h
@@ -50,7 +50,6 @@ struct pipe_box;
 boolean trace_dump_trace_begin(void);
 boolean trace_dump_trace_enabled(void);
 void trace_dump_trace_flush(void);
-void trace_dump_trace_end(void);
 
 /*
  * Lock and unlock the call mutex.
diff --git a/src/gallium/drivers/trace/tr_screen.c b/src/gallium/drivers/trace/tr_screen.c
index df77507..5281ba8 100644
--- a/src/gallium/drivers/trace/tr_screen.c
+++ b/src/gallium/drivers/trace/tr_screen.c
@@ -427,7 +427,6 @@ trace_screen_destroy(struct pipe_screen *_screen)
    trace_dump_call_begin("pipe_screen", "destroy");
    trace_dump_arg(ptr, screen);
    trace_dump_call_end();
-   trace_dump_trace_end();
 
    screen->destroy(screen);
 
@@ -497,7 +496,6 @@ trace_screen_create(struct pipe_screen *screen)
 error2:
    trace_dump_ret(ptr, screen);
    trace_dump_call_end();
-   trace_dump_trace_end();
 error1:
    return screen;
 }