vector[0].iov_base = c->out.queue;
vector[0].iov_len = c->out.queue_len;
c->out.queue_len = 0;
- return _xcb_out_send(c, &vector, &count);
+ return _xcb_out_send(c, vector, count);
+}
+
+static void get_socket_back(xcb_connection_t *c)
+{
+ while(c->out.return_socket && c->out.socket_moving)
+ pthread_cond_wait(&c->out.socket_cond, &c->iolock);
+ if(!c->out.return_socket)
+ return;
+
+ c->out.socket_moving = 1;
+ pthread_mutex_unlock(&c->iolock);
+ c->out.return_socket(c->out.socket_closure);
+ pthread_mutex_lock(&c->iolock);
+ c->out.socket_moving = 0;
+
+ pthread_cond_broadcast(&c->out.socket_cond);
+ c->out.return_socket = 0;
+ c->out.socket_closure = 0;
+ _xcb_in_replies_done(c);
}
/* Public interface */
-uint32_t xcb_get_maximum_request_length(xcb_connection_t *c)
+void xcb_prefetch_maximum_request_length(xcb_connection_t *c)
{
if(c->has_error)
- return 0;
+ return;
pthread_mutex_lock(&c->out.reqlenlock);
- if(!c->out.maximum_request_length)
+ if(c->out.maximum_request_length_tag == LAZY_NONE)
{
const xcb_query_extension_reply_t *ext;
- c->out.maximum_request_length = c->setup->maximum_request_length;
ext = xcb_get_extension_data(c, &xcb_big_requests_id);
if(ext && ext->present)
{
- xcb_big_requests_enable_reply_t *r = xcb_big_requests_enable_reply(c, xcb_big_requests_enable(c), 0);
- c->out.maximum_request_length = r->maximum_request_length;
+ c->out.maximum_request_length_tag = LAZY_COOKIE;
+ c->out.maximum_request_length.cookie = xcb_big_requests_enable(c);
+ }
+ else
+ {
+ c->out.maximum_request_length_tag = LAZY_FORCED;
+ c->out.maximum_request_length.value = c->setup->maximum_request_length;
+ }
+ }
+ pthread_mutex_unlock(&c->out.reqlenlock);
+}
+
+uint32_t xcb_get_maximum_request_length(xcb_connection_t *c)
+{
+ if(c->has_error)
+ return 0;
+ xcb_prefetch_maximum_request_length(c);
+ pthread_mutex_lock(&c->out.reqlenlock);
+ if(c->out.maximum_request_length_tag == LAZY_COOKIE)
+ {
+ xcb_big_requests_enable_reply_t *r = xcb_big_requests_enable_reply(c, c->out.maximum_request_length.cookie, 0);
+ c->out.maximum_request_length_tag = LAZY_FORCED;
+ if(r)
+ {
+ c->out.maximum_request_length.value = r->maximum_request_length;
free(r);
}
+ else
+ c->out.maximum_request_length.value = c->setup->maximum_request_length;
}
pthread_mutex_unlock(&c->out.reqlenlock);
- return c->out.maximum_request_length;
+ return c->out.maximum_request_length.value;
}
unsigned int xcb_send_request(xcb_connection_t *c, int flags, struct iovec *vector, const xcb_protocol_request_t *req)
uint16_t len;
} fields;
uint32_t packet;
- } sync = { { /* GetInputFocus */ 43, 0, 1 } };
- unsigned int request;
+ } sync_req = { { /* GetInputFocus */ 43, 0, 1 } };
+ uint64_t request;
uint32_t prefix[3] = { 0 };
int veclen = req->count;
enum workarounds workaround = WORKAROUND_NONE;
if(!(flags & XCB_REQUEST_RAW))
{
static const char pad[3];
- int i;
+ unsigned int i;
uint16_t shortlen = 0;
size_t longlen = 0;
assert(vector[0].iov_len >= 4);
/* wait for other writing threads to get out of my way. */
while(c->out.writing)
pthread_cond_wait(&c->out.cond, &c->iolock);
+ get_socket_back(c);
request = ++c->out.request;
- /* send GetInputFocus (sync) when 64k-2 requests have been sent without
+ /* send GetInputFocus (sync_req) when 64k-2 requests have been sent without
* a reply.
- * Also send sync (could use NoOp) at 32-bit wrap to avoid having
+ * Also send sync_req (could use NoOp) at 32-bit wrap to avoid having
* applications see sequence 0 as that is used to indicate
* an error in sending the request */
while((req->isvoid &&
c->out.request == c->in.request_expected + (1 << 16) - 1) ||
request == 0)
{
- prefix[0] = sync.packet;
+ prefix[0] = sync_req.packet;
_xcb_in_expect_reply(c, request, WORKAROUND_NONE, XCB_REQUEST_DISCARD_REPLY);
c->in.request_expected = c->out.request;
request = ++c->out.request;
vector[1].iov_base = (uint32_t *) vector[1].iov_base + 1;
vector[1].iov_len -= sizeof(uint32_t);
}
- vector[0].iov_len = sizeof(uint32_t) * (prefix[0] ? 1 : 0 | prefix[2] ? 2 : 0);
+ vector[0].iov_len = sizeof(uint32_t) * ((prefix[0] ? 1 : 0) + (prefix[2] ? 2 : 0));
vector[0].iov_base = prefix + !prefix[0];
}
return request;
}
+int xcb_take_socket(xcb_connection_t *c, void (*return_socket)(void *closure), void *closure, int flags, uint64_t *sent)
+{
+ int ret;
+ if(c->has_error)
+ return 0;
+ pthread_mutex_lock(&c->iolock);
+ get_socket_back(c);
+ ret = _xcb_out_flush_to(c, c->out.request);
+ if(ret)
+ {
+ c->out.return_socket = return_socket;
+ c->out.socket_closure = closure;
+ if(flags)
+ _xcb_in_expect_reply(c, c->out.request, WORKAROUND_EXTERNAL_SOCKET_OWNER, flags);
+ assert(c->out.request == c->out.request_written);
+ *sent = c->out.request;
+ }
+ pthread_mutex_unlock(&c->iolock);
+ return ret;
+}
+
+int xcb_writev(xcb_connection_t *c, struct iovec *vector, int count, uint64_t requests)
+{
+ int ret;
+ if(c->has_error)
+ return 0;
+ pthread_mutex_lock(&c->iolock);
+ c->out.request += requests;
+ ret = _xcb_out_send(c, vector, count);
+ pthread_mutex_unlock(&c->iolock);
+ return ret;
+}
+
int xcb_flush(xcb_connection_t *c)
{
int ret;
int _xcb_out_init(_xcb_out *out)
{
+ if(pthread_cond_init(&out->socket_cond, 0))
+ return 0;
+ out->return_socket = 0;
+ out->socket_closure = 0;
+ out->socket_moving = 0;
+
if(pthread_cond_init(&out->cond, 0))
return 0;
out->writing = 0;
if(pthread_mutex_init(&out->reqlenlock, 0))
return 0;
- out->maximum_request_length = 0;
+ out->maximum_request_length_tag = LAZY_NONE;
return 1;
}
pthread_mutex_destroy(&out->reqlenlock);
}
-int _xcb_out_send(xcb_connection_t *c, struct iovec **vector, int *count)
+int _xcb_out_send(xcb_connection_t *c, struct iovec *vector, int count)
{
int ret = 1;
- while(ret && *count)
- ret = _xcb_conn_wait(c, &c->out.cond, vector, count);
+ while(ret && count)
+ ret = _xcb_conn_wait(c, &c->out.cond, &vector, &count);
c->out.request_written = c->out.request;
pthread_cond_broadcast(&c->out.cond);
+ _xcb_in_wake_up_next_reader(c);
return ret;
}
-int _xcb_out_flush_to(xcb_connection_t *c, unsigned int request)
+int _xcb_out_flush_to(xcb_connection_t *c, uint64_t request)
{
assert(XCB_SEQUENCE_COMPARE(request, <=, c->out.request));
if(XCB_SEQUENCE_COMPARE(c->out.request_written, >=, request))
return 1;
if(c->out.queue_len)
{
- struct iovec vec, *vec_ptr = &vec;
- int count = 1;
+ struct iovec vec;
vec.iov_base = c->out.queue;
vec.iov_len = c->out.queue_len;
c->out.queue_len = 0;
- return _xcb_out_send(c, &vec_ptr, &count);
+ return _xcb_out_send(c, &vec, 1);
}
while(c->out.writing)
pthread_cond_wait(&c->out.cond, &c->iolock);
projects / free-sw / xcb / libxcb / blobdiff