add new pa_socket_udp_low_delay() API

git-svn-id: file:///home/lennart/svn/public/pulseaudio/branches/lennart@1860 fefdeb5f-60dc-0310-8127-8f9354f1896f

2 files changed, 36 insertions, 1 deletions

diff --git a/src/pulsecore/socket-util.c b/src/pulsecore/socket-util.c
index 4026b9b1..cd912bf0 100644
--- a/src/pulsecore/socket-util.c
+++ b/src/pulsecore/socket-util.c
@@ -144,13 +144,16 @@ void pa_socket_peer_to_string(int fd, char *c, size_t l) {
 }
 
 int pa_socket_low_delay(int fd) {
+    
 #ifdef SO_PRIORITY
     int priority;
     pa_assert(fd >= 0);
 
     priority = 7;
-    if (setsockopt(fd, SOL_SOCKET, SO_PRIORITY, (void*)&priority, sizeof(priority)) < 0)
+    if (setsockopt(fd, SOL_SOCKET, SO_PRIORITY, (void*)&priority, sizeof(priority)) < 0) {
+        pa_log_warn("SO_PRIORITY failed: %s", pa_cstrerror(errno));
         return -1;
+    }
 #endif
 
     return 0;
@@ -172,9 +175,37 @@ int pa_socket_tcp_low_delay(int fd) {
 #else
     if (setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (void*)&on, sizeof(on)) < 0)
 #endif
+    {
+        pa_log_warn("TCP_NODELAY failed: %s", pa_cstrerror(errno));
+        ret = -1;
+    }
+#endif
+
+#if defined(IPTOS_LOWDELAY) && defined(IP_TOS) && (defined(SOL_IP) || defined(IPPROTO_IP))
+    tos = IPTOS_LOWDELAY;
+#ifdef SOL_IP
+    if (setsockopt(fd, SOL_IP, IP_TOS, (void*)&tos, sizeof(tos)) < 0)
+#else
+    if (setsockopt(fd, IPPROTO_IP, IP_TOS, (void*)&tos, sizeof(tos)) < 0)
+#endif
+    {
+        pa_log_warn("IP_TOS failed: %s", pa_cstrerror(errno));
         ret = -1;
+    }
 #endif
 
+    return ret;
+}
+
+int pa_socket_udp_low_delay(int fd) {
+    int ret, tos;
+
+    pa_assert(fd >= 0);
+
+    ret = pa_socket_low_delay(fd);
+
+    tos = 0;
+
 #if defined(IPTOS_LOWDELAY) && defined(IP_TOS) && (defined(SOL_IP) || defined(IPPROTO_IP))
     tos = IPTOS_LOWDELAY;
 #ifdef SOL_IP
@@ -182,7 +213,10 @@ int pa_socket_tcp_low_delay(int fd) {
 #else
     if (setsockopt(fd, IPPROTO_IP, IP_TOS, (void*)&tos, sizeof(tos)) < 0)
 #endif
+    {
         ret = -1;
+        pa_log_warn("IP_TOS failed: %s", pa_cstrerror(errno));
+    }
 #endif
 
     return ret;
diff --git a/src/pulsecore/socket-util.h b/src/pulsecore/socket-util.h
index 616c40ac..abe9ce10 100644
--- a/src/pulsecore/socket-util.h
+++ b/src/pulsecore/socket-util.h
@@ -31,6 +31,7 @@ void pa_socket_peer_to_string(int fd, char *c, size_t l);
 
 int pa_socket_low_delay(int fd);
 int pa_socket_tcp_low_delay(int fd);
+int pa_socket_udp_low_delay(int fd);
 
 int pa_socket_set_sndbuf(int fd, size_t l);
 int pa_socket_set_rcvbuf(int fd, size_t l);