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migration: use QEMUFile for migration channel lifetime

Browse source 
As a start, use QEMUFile to store the destination and close it.
qemu_get_fd gets a file descriptor that will be used by the write
callbacks.

Reviewed-by: Orit Wasserman <owasserm@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
This commit is contained in:
Paolo Bonzini 2013-02-22 17:36:41 +01:00 • committed by Juan Quintela
parent 3f2d38faab
commit f8bbc12863
7 changed files with 21 additions and 89 deletions
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19
migration-tcp.c
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@ -39,28 +39,17 @@ static int socket_write(MigrationState *s, const void * buf, size_t size)
return send(s->fd, buf, size, 0);
}
static int tcp_close(MigrationState *s)
{
int r = 0;
DPRINTF("tcp_close\n");
if (closesocket(s->fd) < 0) {
r = -socket_error();
}
return r;
}
static void tcp_wait_for_connect(int fd, void *opaque)
{
MigrationState *s = opaque;
if (fd < 0) {
DPRINTF("migrate connect error\n");
s->fd = -1;
s->migration_file = NULL;
migrate_fd_error(s);
} else {
DPRINTF("migrate connect success\n");
s->fd = fd;
socket_set_block(s->fd);
s->migration_file = qemu_fopen_socket(fd, "wb");
migrate_fd_connect(s);
}
}
@ -69,9 +58,7 @@ void tcp_start_outgoing_migration(MigrationState *s, const char *host_port, Erro
{
s->get_error = socket_errno;
s->write = socket_write;
s->close = tcp_close;
s->fd = inet_nonblocking_connect(host_port, tcp_wait_for_connect, s, errp);
inet_nonblocking_connect(host_port, tcp_wait_for_connect, s, errp);
}
static void tcp_accept_incoming_migration(void *opaque)