Merge branch 'master' of git://github.com/topcat/xcb-win32

[free-sw/xcb/libxcb] / src / xcb_out.c

diff --git a/src/xcb_out.c b/src/xcb_out.c
index ad4240a..fbce7a0 100644 (file)
--- a/src/xcb_out.c
+++ b/src/xcb_out.c
@@ -52,7 +52,26 @@ static int write_block(xcb_connection_t *c, struct iovec *vector, int count)
     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 */
@@ -112,7 +131,7 @@ unsigned int xcb_send_request(xcb_connection_t *c, int flags, struct iovec *vect
         } fields;
         uint32_t packet;
     } sync_req = { { /* GetInputFocus */ 43, 0, 1 } };
-    unsigned int request;
+    uint64_t request;
     uint32_t prefix[3] = { 0 };
     int veclen = req->count;
     enum workarounds workaround = WORKAROUND_NONE;
@@ -191,6 +210,7 @@ unsigned int xcb_send_request(xcb_connection_t *c, int flags, struct iovec *vect
     /* 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_req) when 64k-2 requests have been sent without
@@ -222,7 +242,7 @@ 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];
     }
 
@@ -235,6 +255,39 @@ unsigned int xcb_send_request(xcb_connection_t *c, int flags, struct iovec *vect
     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;
@@ -250,6 +303,12 @@ 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;
@@ -272,29 +331,29 @@ void _xcb_out_destroy(_xcb_out *out)
     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);