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Ensure thread safety during window buffer things

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This commit is contained in:
Kevin Lange 2014-04-19 19:11:10 -07:00
parent 05e3276858
commit 6300959b12
2 changed files with 6 additions and 0 deletions
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4
userspace/gui/compositor/compositor.c
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@ -344,7 +344,9 @@ static void server_window_resize_finish(yutani_globals_t * yg, yutani_server_win
{
char key[1024];
YUTANI_SHMKEY_EXP(key, 1024, oldbufid);
spin_lock(&yg->redraw_lock);
syscall_shm_release(key);
spin_unlock(&yg->redraw_lock);
}
win->buffer = win->newbuffer;
@ -718,11 +720,13 @@ static void redraw_windows(yutani_globals_t * yg) {
* but calculating that may be more trouble than it's worth;
* we also need to render windows in stacking order...
*/
spin_lock(&yg->redraw_lock);
for (unsigned int i = 0; i <= YUTANI_ZORDER_MAX; ++i) {
if (yg->zlist[i]) {
yutani_blit_window(yg, yg->zlist[i], yg->zlist[i]->x, yg->zlist[i]->y);
}
}
spin_unlock(&yg->redraw_lock);
if (yg->resizing_window) {
/* Draw box */

2
userspace/gui/compositor/yutani_int.h
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@ -116,6 +116,8 @@ typedef struct {
int tick_count;
volatile int redraw_lock;
} yutani_globals_t;
static void mark_window(yutani_globals_t * yg, yutani_server_window_t * window);