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[statusbar] Fix multithread issue 

Signed-off-by: Julien Danjou <julien@danjou.info>
This commit is contained in:
Julien Danjou 2008-05-30 10:24:13 +02:00
parent e39bb8eac6
commit 106ed4ee65
1 changed files with 23 additions and 8 deletions
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31
statusbar.c
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@ -166,11 +166,18 @@ statusbar_position_update(statusbar_t *statusbar, position_t position)
globalconf.screens[statusbar->screen].need_arrange = true;
/* Lock the update thread.
* We will reinit every stuff so, it better do nothing at this moment. */
pthread_mutex_lock(&statusbar->need_update.lock);
simplewindow_delete(&statusbar->sw);
draw_context_delete(&statusbar->ctx);
if((statusbar->position = position) == Off)
{
pthread_mutex_unlock(&statusbar->need_update.lock);
return;
}
area = screen_get_area(statusbar->screen,
NULL,
@ -348,7 +355,11 @@ statusbar_position_update(statusbar_t *statusbar, position_t position)
}
xcb_map_window(globalconf.connection, statusbar->sw->window);
statusbar_draw(statusbar);
/* Set need update, and release everything out! */
statusbar->need_update.value = true;
pthread_mutex_unlock(&statusbar->need_update.lock);
pthread_cond_broadcast(&statusbar->need_update.cond);
}
/** Update the need_update attribute of a statusbar to true.
@ -475,17 +486,21 @@ luaA_statusbar_add(lua_State *L)
}
(*sb)->screen = screen;
statusbar_list_append(&globalconf.screens[screen].statusbar, *sb);
for(s = globalconf.screens[(*sb)->screen].statusbar; s; s = s->next)
statusbar_position_update(s, s->position);
statusbar_ref(sb);
(*sb)->screen = screen;
(*sb)->phys_screen = screen_virttophys(screen);
/* Initialize thread stuffs and start it */
/* Initialize thread stuffs before any position update, since it will
* set a need_update and so lock */
pthread_cond_init(&(*sb)->need_update.cond, NULL);
pthread_mutex_init(&(*sb)->need_update.lock, NULL);
statusbar_list_append(&globalconf.screens[screen].statusbar, *sb);
statusbar_ref(sb);
/* All the other statusbar and ourselves need to be repositionned */
for(s = globalconf.screens[screen].statusbar; s; s = s->next)
statusbar_position_update(s, s->position);
/* Start the thread */
if(pthread_create(&(*sb)->tid, NULL, statusbar_refresh, *sb))
perror("unable to create thread");