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Dequeue readers that can't receive any new responses. 

Signed-off-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Josh Triplett <josh@freedesktop.org>
This commit is contained in:
Jamey Sharp 2011-03-18 17:36:32 -07:00
parent 131e867fca
commit 29a974f212
1 changed files with 15 additions and 12 deletions
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27
src/xcb_in.c
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@ -80,6 +80,17 @@ typedef struct reader_list {
struct reader_list *next;
} reader_list;
static void remove_finished_readers(reader_list **prev_reader, uint64_t completed)
{
while(*prev_reader && XCB_SEQUENCE_COMPARE((*prev_reader)->request, <=, completed))
{
/* If you don't have what you're looking for now, you never
* will. Wake up and leave me alone. */
pthread_cond_signal((*prev_reader)->data);
*prev_reader = (*prev_reader)->next;
}
}
static int read_packet(xcb_connection_t *c)
{
xcb_generic_reply_t genrep;
@ -130,6 +141,8 @@ static int read_packet(xcb_connection_t *c)
if(genrep.response_type == XCB_ERROR)
c->in.request_completed = c->in.request_read;
remove_finished_readers(&c->in.readers, c->in.request_completed);
}
if(genrep.response_type == XCB_ERROR || genrep.response_type == XCB_REPLY)
@ -194,7 +207,6 @@ static int read_packet(xcb_connection_t *c)
if( genrep.response_type == XCB_REPLY ||
(genrep.response_type == XCB_ERROR && pend && (pend->flags & XCB_REQUEST_CHECKED)))
{
reader_list *reader;
struct reply_list *cur = malloc(sizeof(struct reply_list));
if(!cur)
{
@ -206,17 +218,8 @@ static int read_packet(xcb_connection_t *c)
cur->next = 0;
*c->in.current_reply_tail = cur;
c->in.current_reply_tail = &cur->next;
for(reader = c->in.readers;
reader &&
XCB_SEQUENCE_COMPARE(reader->request, <=, c->in.request_read);
reader = reader->next)
{
pthread_cond_signal(reader->data);
if(reader->request == c->in.request_read)
{
break;
}
}
if(c->in.readers && c->in.readers->request == c->in.request_read)
pthread_cond_signal(c->in.readers->data);
return 1;
}