aboutsummaryrefslogtreecommitdiff
path: root/migration-unix.c
diff options
context:
space:
mode:
authorPaolo Bonzini <pbonzini@redhat.com>2012-10-03 14:05:49 +0200
committerPaolo Bonzini <pbonzini@redhat.com>2012-10-23 13:54:56 +0200
commite08c95ce8d66276198704f21ed9df6d99b3477e0 (patch)
treec326e3e2db35714ef0804b85bf6969e76ed5ae4a /migration-unix.c
parent342ab8d1e4f8650a22a3a1c9fade31df3fd9c1c1 (diff)
downloadqemu-arm-e08c95ce8d66276198704f21ed9df6d99b3477e0.tar.gz
migration: use qemu-sockets to establish Unix sockets
This makes migration-unix.c again a cut-and-paste job from migration-tcp.c, exactly as it was in the beginning. :) Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'migration-unix.c')
-rw-r--r--migration-unix.c94
1 files changed, 17 insertions, 77 deletions
diff --git a/migration-unix.c b/migration-unix.c
index d349662498..5387c213ef 100644
--- a/migration-unix.c
+++ b/migration-unix.c
@@ -53,67 +53,34 @@ static int unix_close(MigrationState *s)
return r;
}
-static void unix_wait_for_connect(void *opaque)
+static void unix_wait_for_connect(int fd, void *opaque)
{
MigrationState *s = opaque;
- int val, ret;
- socklen_t valsize = sizeof(val);
- DPRINTF("connect completed\n");
- do {
- ret = getsockopt(s->fd, SOL_SOCKET, SO_ERROR, (void *) &val, &valsize);
- } while (ret == -1 && errno == EINTR);
-
- if (ret < 0) {
+ if (fd < 0) {
+ DPRINTF("migrate connect error\n");
+ s->fd = -1;
migrate_fd_error(s);
- return;
- }
-
- qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
-
- if (val == 0)
+ } else {
+ DPRINTF("migrate connect success\n");
+ s->fd = fd;
migrate_fd_connect(s);
- else {
- DPRINTF("error connecting %d\n", val);
- migrate_fd_error(s);
}
}
-int unix_start_outgoing_migration(MigrationState *s, const char *path)
+int unix_start_outgoing_migration(MigrationState *s, const char *path, Error **errp)
{
- struct sockaddr_un addr;
- int ret;
+ Error *local_err = NULL;
- addr.sun_family = AF_UNIX;
- snprintf(addr.sun_path, sizeof(addr.sun_path), "%s", path);
s->get_error = unix_errno;
s->write = unix_write;
s->close = unix_close;
- s->fd = qemu_socket(PF_UNIX, SOCK_STREAM, 0);
- if (s->fd == -1) {
- DPRINTF("Unable to open socket");
- return -errno;
- }
-
- socket_set_nonblock(s->fd);
-
- do {
- ret = connect(s->fd, (struct sockaddr *)&addr, sizeof(addr));
- if (ret == -1) {
- ret = -errno;
- }
- if (ret == -EINPROGRESS || ret == -EWOULDBLOCK) {
- qemu_set_fd_handler2(s->fd, NULL, NULL, unix_wait_for_connect, s);
- return 0;
- }
- } while (ret == -EINTR);
-
- if (ret < 0) {
- DPRINTF("connect failed\n");
- return ret;
+ s->fd = unix_nonblocking_connect(path, unix_wait_for_connect, s, &local_err);
+ if (local_err != NULL) {
+ error_propagate(errp, local_err);
+ return -1;
}
- migrate_fd_connect(s);
return 0;
}
@@ -151,43 +118,16 @@ out2:
close(s);
}
-int unix_start_incoming_migration(const char *path)
+int unix_start_incoming_migration(const char *path, Error **errp)
{
- struct sockaddr_un addr;
int s;
- int ret;
-
- DPRINTF("Attempting to start an incoming migration\n");
-
- s = qemu_socket(PF_UNIX, SOCK_STREAM, 0);
- if (s == -1) {
- fprintf(stderr, "Could not open unix socket: %s\n", strerror(errno));
- return -errno;
- }
-
- memset(&addr, 0, sizeof(addr));
- addr.sun_family = AF_UNIX;
- snprintf(addr.sun_path, sizeof(addr.sun_path), "%s", path);
- unlink(addr.sun_path);
- if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
- ret = -errno;
- fprintf(stderr, "bind(unix:%s): %s\n", addr.sun_path, strerror(errno));
- goto err;
- }
- if (listen(s, 1) == -1) {
- fprintf(stderr, "listen(unix:%s): %s\n", addr.sun_path,
- strerror(errno));
- ret = -errno;
- goto err;
+ s = unix_listen(path, NULL, 0, errp);
+ if (s < 0) {
+ return -1;
}
qemu_set_fd_handler2(s, NULL, unix_accept_incoming_migration, NULL,
(void *)(intptr_t)s);
-
return 0;
-
-err:
- close(s);
- return ret;
}