#include "xcbext.h"
#include "xcbint.h"
+#define XCBError 0
+#define XCBReply 1
+
struct event_list {
XCBGenericEvent *event;
struct event_list *next;
memcpy(&genrep, c->in.queue, sizeof(genrep));
/* Compute 32-bit sequence number of this packet. */
- if((genrep.response_type & 0x7f) != KeymapNotify)
+ if((genrep.response_type & 0x7f) != XCBKeymapNotify)
{
int lastread = c->in.request_read;
c->in.request_read = (lastread & 0xffff0000) | genrep.sequence;
+ if(c->in.request_read < lastread)
+ c->in.request_read += 0x10000;
+ if(c->in.request_read > c->in.request_expected)
+ c->in.request_expected = c->in.request_read;
+
if(c->in.request_read != lastread)
{
- while(c->in.pending_replies && c->in.pending_replies->request < c->in.request_read)
- {
- pending_reply *oldpend = c->in.pending_replies;
- c->in.pending_replies = oldpend->next;
- if(!oldpend->next)
- c->in.pending_replies_tail = &c->in.pending_replies;
- free(oldpend);
- }
if(c->in.current_reply)
{
_xcb_map_put(c->in.replies, lastread, c->in.current_reply);
c->in.current_reply = 0;
c->in.current_reply_tail = &c->in.current_reply;
}
+ c->in.request_completed = c->in.request_read - 1;
+ }
+ if(genrep.response_type != XCBReply) /* error or event */
+ c->in.request_completed = c->in.request_read; /* XXX: does event/error imply no more replies? */
+
+ while(c->in.pending_replies && c->in.pending_replies->request <= c->in.request_completed)
+ {
+ pending_reply *oldpend = c->in.pending_replies;
+ c->in.pending_replies = oldpend->next;
+ if(!oldpend->next)
+ c->in.pending_replies_tail = &c->in.pending_replies;
+ free(oldpend);
}
- if(c->in.request_read < lastread)
- c->in.request_read += 0x10000;
}
- if(genrep.response_type == 0 || genrep.response_type == 1)
+ if(genrep.response_type == XCBError || genrep.response_type == XCBReply)
{
pend = c->in.pending_replies;
if(pend && pend->request != c->in.request_read)
}
/* For reply packets, check that the entire packet is available. */
- if(genrep.response_type == 1)
+ if(genrep.response_type == XCBReply)
{
if(pend && pend->workaround == WORKAROUND_GLX_GET_FB_CONFIGS_BUG)
{
length += genrep.length * 4;
}
- buf = malloc(length);
+ buf = malloc(length + (genrep.response_type == XCBReply ? 0 : sizeof(CARD32)));
if(!buf)
return 0;
if(_xcb_in_read_block(c, buf, length) <= 0)
free(buf);
return 0;
}
+ if(pend && (pend->flags & XCB_REQUEST_DISCARD_REPLY))
+ {
+ free(buf);
+ return 1;
+ }
+
+ if(genrep.response_type != XCBReply)
+ ((XCBGenericEvent *) buf)->full_sequence = c->in.request_read;
/* reply, or checked error */
- if(genrep.response_type == 1 || (genrep.response_type == 0 && pend && (pend->flags & XCB_REQUEST_CHECKED)))
+ if( genrep.response_type == XCBReply ||
+ (genrep.response_type == XCBError && pend && (pend->flags & XCB_REQUEST_CHECKED)))
{
reader_list *reader;
struct reply_list *cur = malloc(sizeof(struct reply_list));
if(e)
*e = 0;
+ /* If an error occurred when issuing the request, fail immediately. */
+ if(!request)
+ return 0;
+
pthread_mutex_lock(&c->iolock);
/* If this request has not been written yet, write it. */
- if((signed int) (c->out.request_written - request) < 0)
- if(!_xcb_out_flush(c))
- goto done; /* error */
+ if(!_xcb_out_flush_to(c, request))
+ goto done; /* error */
for(prev_reader = &c->in.readers; *prev_reader && (*prev_reader)->request <= request; prev_reader = &(*prev_reader)->next)
if((*prev_reader)->request == request)
reader.next = *prev_reader;
*prev_reader = &reader;
- /* If this request has not been read yet, wait for it. */
- while(((signed int) (c->in.request_read - request) < 0 ||
- (c->in.request_read == request && !c->in.current_reply)))
- if(!_xcb_conn_wait(c, /*should_write*/ 0, &cond))
+ /* If this request has not completed yet and has no reply waiting,
+ * wait for one. */
+ while(c->in.request_completed < request &&
+ !(c->in.request_read == request && c->in.current_reply))
+ if(!_xcb_conn_wait(c, &cond, 0, 0))
goto done;
if(c->in.request_read != request)
ret = head->reply;
free(head);
- if(((XCBGenericRep *) ret)->response_type == 0) /* X error */
+ if(((XCBGenericRep *) ret)->response_type == XCBError)
{
if(e)
*e = ret;
pthread_mutex_lock(&c->iolock);
/* get_event returns 0 on empty list. */
while(!(ret = get_event(c)))
- if(!_xcb_conn_wait(c, /*should_write*/ 0, &c->in.event_cond))
+ if(!_xcb_conn_wait(c, &c->in.event_cond, 0, 0))
break;
wake_up_next_reader(c);
in->queue_len = 0;
in->request_read = 0;
+ in->request_completed = 0;
in->replies = _xcb_map_new();
if(!in->replies)