Update -dbg package handling to work with debhelper compat level 5.

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

diff --git a/src/xcb_conn.c b/src/xcb_conn.c
index 1b3e1a2..1e93137 100644 (file)
--- a/src/xcb_conn.c
+++ b/src/xcb_conn.c
@@ -33,6 +33,7 @@
 #include <netinet/in.h>
 #include <sys/select.h>
 #include <sys/fcntl.h>
+#include <errno.h>
 
 #include "xcb.h"
 #include "xcbint.h"
@@ -73,18 +74,18 @@ static int write_setup(XCBConnection *c, XCBAuthInfo *auth_info)
     parts[count].iov_len = sizeof(XCBConnSetupReq);
     parts[count++].iov_base = &out;
     parts[count].iov_len = XCB_PAD(sizeof(XCBConnSetupReq));
-    parts[count++].iov_base = (caddr_t) pad;
+    parts[count++].iov_base = (char *) pad;
 
     if(auth_info)
     {
         parts[count].iov_len = out.authorization_protocol_name_len = auth_info->namelen;
         parts[count++].iov_base = auth_info->name;
         parts[count].iov_len = XCB_PAD(out.authorization_protocol_name_len);
-        parts[count++].iov_base = (caddr_t) pad;
+        parts[count++].iov_base = (char *) pad;
         parts[count].iov_len = out.authorization_protocol_data_len = auth_info->datalen;
         parts[count++].iov_base = auth_info->data;
         parts[count].iov_len = XCB_PAD(out.authorization_protocol_data_len);
-        parts[count++].iov_base = (caddr_t) pad;
+        parts[count++].iov_base = (char *) pad;
     }
     assert(count <= sizeof(parts) / sizeof(*parts));
 
@@ -138,9 +139,37 @@ static int read_setup(XCBConnection *c)
     return 1;
 }
 
+/* precondition: there must be something for us to write. */
+static int write_vec(XCBConnection *c, struct iovec **vector, int *count)
+{
+    int n;
+    assert(!c->out.queue_len);
+    n = writev(c->fd, *vector, *count);
+    if(n < 0 && errno == EAGAIN)
+        return 1;
+    if(n <= 0)
+        return 0;
+
+    for(; *count; --*count, ++*vector)
+    {
+        int cur = (*vector)->iov_len;
+        if(cur > n)
+            cur = n;
+        (*vector)->iov_len -= cur;
+        (*vector)->iov_base = (char *) (*vector)->iov_base + cur;
+        n -= cur;
+        if((*vector)->iov_len)
+            break;
+    }
+    if(!*count)
+        *vector = 0;
+    assert(n == 0);
+    return 1;
+}
+
 /* Public interface */
 
-XCBConnSetupSuccessRep *XCBGetSetup(XCBConnection *c)
+const XCBConnSetupSuccessRep *XCBGetSetup(XCBConnection *c)
 {
     /* doesn't need locking because it's never written to. */
     return c->setup;
@@ -233,7 +262,7 @@ int _xcb_conn_wait(XCBConnection *c, pthread_cond_t *cond, struct iovec **vector
             ret = ret && _xcb_in_read(c);
 
         if(FD_ISSET(c->fd, &wfds))
-            ret = ret && _xcb_out_write(c, vector, count);
+            ret = ret && write_vec(c, vector, count);
     }
 
     if(count)