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Diffstat (limited to 'libxcb/src/xcb_out.c')
-rw-r--r--libxcb/src/xcb_out.c89
1 files changed, 73 insertions, 16 deletions
diff --git a/libxcb/src/xcb_out.c b/libxcb/src/xcb_out.c
index 52a2abc87..08d19c65c 100644
--- a/libxcb/src/xcb_out.c
+++ b/libxcb/src/xcb_out.c
@@ -27,9 +27,7 @@
#include <assert.h>
#include <stdlib.h>
-#ifndef _MSC_VER
#include <unistd.h>
-#endif
#include <string.h>
#include <X11/Xtrans/Xtrans.h>
@@ -58,6 +56,25 @@ static int write_block(xcb_connection_t *c, struct iovec *vector, int 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 */
void xcb_prefetch_maximum_request_length(xcb_connection_t *c)
@@ -114,8 +131,8 @@ unsigned int xcb_send_request(xcb_connection_t *c, int flags, struct iovec *vect
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;
@@ -130,7 +147,7 @@ unsigned int xcb_send_request(xcb_connection_t *c, int flags, struct iovec *vect
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);
@@ -190,22 +207,23 @@ unsigned int xcb_send_request(xcb_connection_t *c, int flags, struct iovec *vect
workaround = WORKAROUND_GLX_GET_FB_CONFIGS_BUG;
/* get a sequence number and arrange for delivery. */
- _xcb_lock_io(c);
+ pthread_mutex_lock(&c->iolock);
/* wait for other writing threads to get out of my way. */
while(c->out.writing)
- _xcb_wait_io(c, &c->out.cond);
+ 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;
@@ -225,7 +243,7 @@ unsigned int xcb_send_request(xcb_connection_t *c, int flags, struct iovec *vect
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];
}
@@ -234,18 +252,51 @@ unsigned int xcb_send_request(xcb_connection_t *c, int flags, struct iovec *vect
_xcb_conn_shutdown(c);
request = 0;
}
- _xcb_unlock_io(c);
+ pthread_mutex_unlock(&c->iolock);
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;
if(c->has_error)
return 0;
- _xcb_lock_io(c);
+ pthread_mutex_lock(&c->iolock);
ret = _xcb_out_flush_to(c, c->out.request);
- _xcb_unlock_io(c);
+ pthread_mutex_unlock(&c->iolock);
return ret;
}
@@ -253,6 +304,12 @@ int xcb_flush(xcb_connection_t *c)
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;
@@ -285,7 +342,7 @@ int _xcb_out_send(xcb_connection_t *c, struct iovec **vector, int *count)
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))
@@ -300,7 +357,7 @@ int _xcb_out_flush_to(xcb_connection_t *c, unsigned int request)
return _xcb_out_send(c, &vec_ptr, &count);
}
while(c->out.writing)
- _xcb_wait_io(c, &c->out.cond);
+ pthread_cond_wait(&c->out.cond, &c->iolock);
assert(XCB_SEQUENCE_COMPARE(c->out.request_written, >=, request));
return 1;
}