socket: Add num connections to qio_channel_socket_async()

[mirror_qemu.git] / io / channel-socket.c

diff --git a/io/channel-socket.c b/io/channel-socket.c
index f546c6830e2a2665fe6d75a4cf353cfd218fdcd9..b74f5b92a051a5f5a393ec5466c586efd0dde0e7 100644 (file)
--- a/io/channel-socket.c
+++ b/io/channel-socket.c
@@ -15,11 +15,13 @@
  *
  * You should have received a copy of the GNU Lesser General Public
  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
- *
  */
 
 #include "qemu/osdep.h"
+#include "qemu-common.h"
 #include "qapi/error.h"
+#include "qapi/qapi-visit-sockets.h"
+#include "qemu/module.h"
 #include "io/channel-socket.h"
 #include "io/channel-watch.h"
 #include "trace.h"
@@ -140,7 +142,7 @@ int qio_channel_socket_connect_sync(QIOChannelSocket *ioc,
     int fd;
 
     trace_qio_channel_socket_connect_sync(ioc, addr);
-    fd = socket_connect(addr, errp, NULL, NULL);
+    fd = socket_connect(addr, errp);
     if (fd < 0) {
         trace_qio_channel_socket_connect_fail(ioc);
         return -1;
@@ -173,7 +175,8 @@ void qio_channel_socket_connect_async(QIOChannelSocket *ioc,
                                       SocketAddress *addr,
                                       QIOTaskFunc callback,
                                       gpointer opaque,
-                                      GDestroyNotify destroy)
+                                      GDestroyNotify destroy,
+                                      GMainContext *context)
 {
     QIOTask *task = qio_task_new(
         OBJECT(ioc), callback, opaque, destroy);
@@ -187,18 +190,20 @@ void qio_channel_socket_connect_async(QIOChannelSocket *ioc,
     qio_task_run_in_thread(task,
                            qio_channel_socket_connect_worker,
                            addrCopy,
-                           (GDestroyNotify)qapi_free_SocketAddress);
+                           (GDestroyNotify)qapi_free_SocketAddress,
+                           context);
 }
 
 
 int qio_channel_socket_listen_sync(QIOChannelSocket *ioc,
                                    SocketAddress *addr,
+                                   int num,
                                    Error **errp)
 {
     int fd;
 
-    trace_qio_channel_socket_listen_sync(ioc, addr);
-    fd = socket_listen(addr, errp);
+    trace_qio_channel_socket_listen_sync(ioc, addr, num);
+    fd = socket_listen(addr, num, errp);
     if (fd < 0) {
         trace_qio_channel_socket_listen_fail(ioc);
         return -1;
@@ -215,14 +220,27 @@ int qio_channel_socket_listen_sync(QIOChannelSocket *ioc,
 }
 
 
+struct QIOChannelListenWorkerData {
+    SocketAddress *addr;
+    int num; /* amount of expected connections */
+};
+
+static void qio_channel_listen_worker_free(gpointer opaque)
+{
+    struct QIOChannelListenWorkerData *data = opaque;
+
+    qapi_free_SocketAddress(data->addr);
+    g_free(data);
+}
+
 static void qio_channel_socket_listen_worker(QIOTask *task,
                                              gpointer opaque)
 {
     QIOChannelSocket *ioc = QIO_CHANNEL_SOCKET(qio_task_get_source(task));
-    SocketAddress *addr = opaque;
+    struct QIOChannelListenWorkerData *data = opaque;
     Error *err = NULL;
 
-    qio_channel_socket_listen_sync(ioc, addr, &err);
+    qio_channel_socket_listen_sync(ioc, data->addr, data->num, &err);
 
     qio_task_set_error(task, err);
 }
@@ -230,22 +248,27 @@ static void qio_channel_socket_listen_worker(QIOTask *task,
 
 void qio_channel_socket_listen_async(QIOChannelSocket *ioc,
                                      SocketAddress *addr,
+                                     int num,
                                      QIOTaskFunc callback,
                                      gpointer opaque,
-                                     GDestroyNotify destroy)
+                                     GDestroyNotify destroy,
+                                     GMainContext *context)
 {
     QIOTask *task = qio_task_new(
         OBJECT(ioc), callback, opaque, destroy);
-    SocketAddress *addrCopy;
+    struct QIOChannelListenWorkerData *data;
 
-    addrCopy = QAPI_CLONE(SocketAddress, addr);
+    data = g_new0(struct QIOChannelListenWorkerData, 1);
+    data->addr = QAPI_CLONE(SocketAddress, addr);
+    data->num = num;
 
     /* socket_listen() blocks in DNS lookups, so we must use a thread */
-    trace_qio_channel_socket_listen_async(ioc, addr);
+    trace_qio_channel_socket_listen_async(ioc, addr, num);
     qio_task_run_in_thread(task,
                            qio_channel_socket_listen_worker,
-                           addrCopy,
-                           (GDestroyNotify)qapi_free_SocketAddress);
+                           data,
+                           qio_channel_listen_worker_free,
+                           context);
 }
 
 
@@ -307,7 +330,8 @@ void qio_channel_socket_dgram_async(QIOChannelSocket *ioc,
                                     SocketAddress *remoteAddr,
                                     QIOTaskFunc callback,
                                     gpointer opaque,
-                                    GDestroyNotify destroy)
+                                    GDestroyNotify destroy,
+                                    GMainContext *context)
 {
     QIOTask *task = qio_task_new(
         OBJECT(ioc), callback, opaque, destroy);
@@ -321,7 +345,8 @@ void qio_channel_socket_dgram_async(QIOChannelSocket *ioc,
     qio_task_run_in_thread(task,
                            qio_channel_socket_dgram_worker,
                            data,
-                           qio_channel_socket_dgram_worker_free);
+                           qio_channel_socket_dgram_worker_free,
+                           context);
 }
 
 
@@ -331,25 +356,20 @@ qio_channel_socket_accept(QIOChannelSocket *ioc,
 {
     QIOChannelSocket *cioc;
 
-    cioc = QIO_CHANNEL_SOCKET(object_new(TYPE_QIO_CHANNEL_SOCKET));
-    cioc->fd = -1;
+    cioc = qio_channel_socket_new();
     cioc->remoteAddrLen = sizeof(ioc->remoteAddr);
     cioc->localAddrLen = sizeof(ioc->localAddr);
 
-#ifdef WIN32
-    QIO_CHANNEL(cioc)->event = CreateEvent(NULL, FALSE, FALSE, NULL);
-#endif
-
-
  retry:
     trace_qio_channel_socket_accept(ioc);
     cioc->fd = qemu_accept(ioc->fd, (struct sockaddr *)&cioc->remoteAddr,
                            &cioc->remoteAddrLen);
     if (cioc->fd < 0) {
-        trace_qio_channel_socket_accept_fail(ioc);
         if (errno == EINTR) {
             goto retry;
         }
+        error_setg_errno(errp, errno, "Unable to accept connection");
+        trace_qio_channel_socket_accept_fail(ioc);
         goto error;
     }
 
@@ -683,11 +703,16 @@ qio_channel_socket_close(QIOChannel *ioc,
                          Error **errp)
 {
     QIOChannelSocket *sioc = QIO_CHANNEL_SOCKET(ioc);
+    int rc = 0;
 
     if (sioc->fd != -1) {
 #ifdef WIN32
         WSAEventSelect(sioc->fd, NULL, 0);
 #endif
+        if (qio_channel_has_feature(ioc, QIO_CHANNEL_FEATURE_LISTEN)) {
+            socket_listen_cleanup(sioc->fd, errp);
+        }
+
         if (closesocket(sioc->fd) < 0) {
             sioc->fd = -1;
             error_setg_errno(errp, errno,
@@ -696,7 +721,7 @@ qio_channel_socket_close(QIOChannel *ioc,
         }
         sioc->fd = -1;
     }
-    return 0;
+    return rc;
 }
 
 static int