Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* NBD and chardev conversion to QIONetListener (Daniel)
* MTTCG fixes (David)
* Hyper-V fixes (Roman, Evgeny)
* share-rw option (Fam)
* Mux chardev event bugfix (Marc-André)
* Add systemd unit files in contrib/ (me)
* SCSI and block/iscsi.c bugfixes (me, Peter L.)
* unassigned_mem_ops fixes (Peter M.)
* VEX decoding fix (Peter M.)
* "info pic" and "info irq" improvements (Peter Xu)
* vmport trace events (Philippe)
* Braille chardev bugfix (Samuel)
* Compiler warnings fix (Stefan)
* initial support for TCG smoke test of more boards (Thomas)
* New CPU features (Yang)
* Reduce startup memory usage (Yang)
* QemuThread race fix (linhecheng)

# gpg: Signature made Thu 21 Dec 2017 08:30:49 GMT
# gpg:                using RSA key 0xBFFBD25F78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>"
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* remotes/bonzini/tags/for-upstream: (41 commits)
  chardev: convert the socket server to QIONetListener
  blockdev: convert qemu-nbd server to QIONetListener
  blockdev: convert internal NBD server to QIONetListener
  test: add some chardev mux event tests
  chardev: fix backend events regression with mux chardev
  rcu: reduce more than 7MB heap memory by malloc_trim()
  checkpatch: volatile with a comment or sig_atomic_t is okay
  i8259: move TYPE_INTERRUPT_STATS_PROVIDER upper
  kvm-i8259: support "info pic" and "info irq"
  i8259: generalize statistics into common code
  i8259: use DEBUG_IRQ_COUNT always
  i8259: convert DPRINTFs into trace
  Remove legacy -no-kvm-pit option
  scsi: replace hex constants with #defines
  scsi: provide general-purpose functions to manage sense data
  hw/i386/vmport: replace fprintf() by trace events or LOG_UNIMP
  hw/mips/boston: Remove workaround for writes to ROM aborting
  exec: Don't reuse unassigned_mem_ops for io_mem_rom
  block/iscsi: only report an iSCSI Failure if we don't handle it gracefully
  block/iscsi: dont leave allocmap in an invalid state on UNMAP failure
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 24 insertions, 37 deletions

diff --git a/qemu-nbd.c b/qemu-nbd.c
index d75ca51482..3723493be1 100644
--- a/qemu-nbd.c
+++ b/qemu-nbd.c
@@ -37,6 +37,7 @@
 #include "qapi/qmp/qstring.h"
 #include "qom/object_interfaces.h"
 #include "io/channel-socket.h"
+#include "io/net-listener.h"
 #include "crypto/init.h"
 #include "trace/control.h"
 #include "qemu-version.h"
@@ -62,8 +63,7 @@ static int persistent = 0;
 static enum { RUNNING, TERMINATE, TERMINATING, TERMINATED } state;
 static int shared = 1;
 static int nb_fds;
-static QIOChannelSocket *server_ioc;
-static int server_watch = -1;
+static QIONetListener *server;
 static QCryptoTLSCreds *tlscreds;
 
 static void usage(const char *name)
@@ -344,44 +344,25 @@ static void nbd_client_closed(NBDClient *client, bool negotiated)
     nbd_client_put(client);
 }
 
-static gboolean nbd_accept(QIOChannel *ioc, GIOCondition cond, gpointer opaque)
+static void nbd_accept(QIONetListener *listener, QIOChannelSocket *cioc,
+                       gpointer opaque)
 {
-    QIOChannelSocket *cioc;
-
-    cioc = qio_channel_socket_accept(QIO_CHANNEL_SOCKET(ioc),
-                                     NULL);
-    if (!cioc) {
-        return TRUE;
-    }
-
     if (state >= TERMINATE) {
-        object_unref(OBJECT(cioc));
-        return TRUE;
+        return;
     }
 
     nb_fds++;
     nbd_update_server_watch();
     nbd_client_new(newproto ? NULL : exp, cioc,
                    tlscreds, NULL, nbd_client_closed);
-    object_unref(OBJECT(cioc));
-
-    return TRUE;
 }
 
 static void nbd_update_server_watch(void)
 {
     if (nbd_can_accept()) {
-        if (server_watch == -1) {
-            server_watch = qio_channel_add_watch(QIO_CHANNEL(server_ioc),
-                                                 G_IO_IN,
-                                                 nbd_accept,
-                                                 NULL, NULL);
-        }
+        qio_net_listener_set_client_func(server, nbd_accept, NULL, NULL);
     } else {
-        if (server_watch != -1) {
-            g_source_remove(server_watch);
-            server_watch = -1;
-        }
+        qio_net_listener_set_client_func(server, NULL, NULL, NULL);
     }
 }
 
@@ -915,23 +896,29 @@ int main(int argc, char **argv)
         snprintf(sockpath, 128, SOCKET_PATH, basename(device));
     }
 
+    server = qio_net_listener_new();
     if (socket_activation == 0) {
-        server_ioc = qio_channel_socket_new();
         saddr = nbd_build_socket_address(sockpath, bindto, port);
-        if (qio_channel_socket_listen_sync(server_ioc, saddr, &local_err) < 0) {
-            object_unref(OBJECT(server_ioc));
+        if (qio_net_listener_open_sync(server, saddr, &local_err) < 0) {
+            object_unref(OBJECT(server));
             error_report_err(local_err);
-            return 1;
+            exit(EXIT_FAILURE);
         }
     } else {
+        size_t i;
         /* See comment in check_socket_activation above. */
-        assert(socket_activation == 1);
-        server_ioc = qio_channel_socket_new_fd(FIRST_SOCKET_ACTIVATION_FD,
-                                               &local_err);
-        if (server_ioc == NULL) {
-            error_report("Failed to use socket activation: %s",
-                         error_get_pretty(local_err));
-            exit(EXIT_FAILURE);
+        for (i = 0; i < socket_activation; i++) {
+            QIOChannelSocket *sioc;
+            sioc = qio_channel_socket_new_fd(FIRST_SOCKET_ACTIVATION_FD + i,
+                                             &local_err);
+            if (sioc == NULL) {
+                object_unref(OBJECT(server));
+                error_report("Failed to use socket activation: %s",
+                             error_get_pretty(local_err));
+                exit(EXIT_FAILURE);
+            }
+            qio_net_listener_add(server, sioc);
+            object_unref(OBJECT(sioc));
         }
     }