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Added some check for B_INTERRUPTED in semaphores acquisitions. Could fix bug #89, although I can't reproduce it in Qemu

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git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16338 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Stefano Ceccherini
2006-02-10 19:13:08 +00:00
parent 43f7b92977
commit 10b26c62df
1 changed files with 17 additions and 8 deletions
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src/tests/kits/game/chart/ChartWindow.cpp
+17 -8
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@@ -1460,7 +1460,8 @@ ChartWindow::ChangeSetting(setting new_set)
}
if (new_set.display == DISPLAY_DIRECT) {
/* this need to be atomic in regard of DirectConnected */
acquire_sem(fDrawingLock);
while (acquire_sem(fDrawingLock) == B_INTERRUPTED)
;
/* synchronise the camera geometry and the direct buffer geometry */
SetGeometry(direct_buffer.buffer_width, direct_buffer.buffer_height);
/* cancel erasing of stars not in visible part of the direct window */
@@ -1514,7 +1515,8 @@ ChartWindow::ChangeSetting(setting new_set)
/* update all dependencies in the offscreen buffer descriptor */
SetColorSpace(&bitmap_buffer, bitmap_buffer.depth);
/* update all dependencies in the directwindow buffer descriptor */
acquire_sem(fDrawingLock);
while (acquire_sem(fDrawingLock) == B_INTERRUPTED)
;
SetColorSpace(&direct_buffer, direct_buffer.depth);
release_sem(fDrawingLock);
/* in offscreen mode, erase the background and cancel star erasing */
@@ -2139,7 +2141,8 @@ ChartWindow::Animation(void *data)
directbuffer context won't change during the drawing
operations. During that period, no Window should be
done to avoid any potential deadlock. */
acquire_sem(w->fDrawingLock);
while (acquire_sem(w->fDrawingLock) == B_INTERRUPTED)
;
if (w->fDirectConnected)
w->RefreshStars(&w->direct_buffer, time_factor * 2.4);
release_sem(w->fDrawingLock);
@@ -2213,9 +2216,13 @@ ChartWindow::Animation2(void *data)
/* This thread need to both wait for its master to unblock
him to do some real work, or for the main control to
set the fKillThread flag, asking it to quit. */
while (acquire_sem_etc(w->second_thread_lock, 1, B_TIMEOUT, 500000) == B_TIMED_OUT)
if (w->fKillThread)
return 0;
status_t status;
do {
status = acquire_sem_etc(w->second_thread_lock, 1, B_TIMEOUT, 500000);
} while (status == B_TIMED_OUT || status == B_INTERRUPTED);
if (w->fKillThread)
return 0;
/* the duration of the processing is needed to control the
dynamic load split (see RefreshStar) */
@@ -2757,7 +2764,8 @@ ChartWindow::RefreshStars(buffer *buf, float time_step)
after = system_time();
/* wait for completion of the second thread */
acquire_sem(second_thread_release);
while (acquire_sem(second_thread_release) == B_INTERRUPTED)
;
/* calculate the new optimal split ratio depending
of the previous one and the time used by both
@@ -2879,7 +2887,8 @@ void
ChartWindow::DirectConnected(direct_buffer_info *info)
{
/* block the animation thread. */
acquire_sem(fDrawingLock);
while (acquire_sem(fDrawingLock) == B_INTERRUPTED)
;
/* update the direct screen infos. */
SwitchContext(info);
/* unblock the animation thread. */