Live migration for Win32 (Hervé Poussineau)

This patch fixes migration so that it works on Win32.  This requires using
socket specific calls since sockets cannot be treated like file descriptors
on win32.

Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5525 c046a42c-6fe2-441c-8c8c-71466251a162

1 files changed, 11 insertions, 11 deletions

diff --git a/migration-tcp.c b/migration-tcp.c
index a011a53..64b64d6 100644
--- a/migration-tcp.c
+++ b/migration-tcp.c
@@ -85,10 +85,10 @@ static ssize_t fd_put_buffer(void *opaque, const void *data, size_t size)
 
     do {
         ret = send(s->fd, data, size, 0);
-    } while (ret == -1 && errno == EINTR);
+    } while (ret == -1 && (socket_error() == EINTR || socket_error() == EWOULDBLOCK));
 
     if (ret == -1)
-        ret = -errno;
+        ret = -socket_error();
 
     if (ret == -EAGAIN)
         qemu_set_fd_handler2(s->fd, NULL, NULL, fd_put_notify, s);
@@ -123,7 +123,7 @@ static void fd_wait_for_unfreeze(void *opaque)
         FD_SET(s->fd, &wfds);
 
         ret = select(s->fd + 1, NULL, &wfds, NULL, NULL);
-    } while (ret == -1 && errno == EINTR);
+    } while (ret == -1 && socket_error() == EINTR);
 }
 
 static void fd_put_ready(void *opaque)
@@ -178,7 +178,7 @@ static void tcp_wait_for_connect(void *opaque)
     dprintf("connect completed\n");
     do {
         ret = getsockopt(s->fd, SOL_SOCKET, SO_ERROR, &val, &valsize);
-    } while (ret == -1 && errno == EINTR);
+    } while (ret == -1 && socket_error() == EINTR);
 
     if (ret < 0) {
 	tcp_error(s);
@@ -273,13 +273,13 @@ MigrationState *tcp_start_outgoing_migration(const char *host_port,
     do {
         ret = connect(s->fd, (struct sockaddr *)&addr, sizeof(addr));
         if (ret == -1)
-            ret = -errno;
+            ret = -socket_error();
 
-        if (ret == -EINPROGRESS)
+        if (ret == -EINPROGRESS || ret == -EWOULDBLOCK)
             qemu_set_fd_handler2(s->fd, NULL, NULL, tcp_wait_for_connect, s);
     } while (ret == -EINTR);
 
-    if (ret < 0 && ret != -EINPROGRESS) {
+    if (ret < 0 && ret != -EINPROGRESS && ret != -EWOULDBLOCK) {
         dprintf("connect failed\n");
         close(s->fd);
         qemu_free(s);
@@ -300,7 +300,7 @@ static void tcp_accept_incoming_migration(void *opaque)
 
     do {
         c = accept(s, (struct sockaddr *)&addr, &addrlen);
-    } while (c == -1 && errno == EINTR);
+    } while (c == -1 && socket_error() == EINTR);
 
     dprintf("accepted migration\n");
 
@@ -309,7 +309,7 @@ static void tcp_accept_incoming_migration(void *opaque)
         return;
     }
 
-    f = qemu_fopen_fd(c);
+    f = qemu_fopen_socket(c);
     if (f == NULL) {
         fprintf(stderr, "could not qemu_fopen socket\n");
         goto out;
@@ -349,7 +349,7 @@ int tcp_start_incoming_migration(const char *host_port)
 
     s = socket(PF_INET, SOCK_STREAM, 0);
     if (s == -1)
-        return -errno;
+        return -socket_error();
 
     val = 1;
     setsockopt(s, SOL_SOCKET, SO_REUSEADDR, (const char *)&val, sizeof(val));
@@ -367,5 +367,5 @@ int tcp_start_incoming_migration(const char *host_port)
 
 err:
     close(s);
-    return -errno;
+    return -socket_error();
 }