From: songlinfeng <songlinf...@inspur.com> we want to export a image with qemu-nbd as server, in client we use libnbd to connect qemu-nbd,but when client power down,the server is still working. qemu-nbd will exit when last client exit.so,we still want server exit when client power down.maybe qmp can handle it,but i don't know how to do . Signed-off-by: songlinfeng <songlinf...@inspur.com> --- qemu-nbd.c | 23 ++++++++++++++++++++++- 1 file changed, 22 insertions(+), 1 deletion(-)
diff --git a/qemu-nbd.c b/qemu-nbd.c index 0cd5aa6..115ef2b 100644 --- a/qemu-nbd.c +++ b/qemu-nbd.c @@ -20,7 +20,8 @@ #include <getopt.h> #include <libgen.h> #include <pthread.h> - +#include <sys/types.h> +#include <sys/socket.h> #include "qemu/help-texts.h" #include "qapi/error.h" #include "qemu/cutils.h" @@ -365,6 +366,26 @@ static void nbd_accept(QIONetListener *listener, QIOChannelSocket *cioc, nb_fds++; nbd_update_server_watch(); nbd_client_new(cioc, tlscreds, tlsauthz, nbd_client_closed); + int tcp_keepalive_intvl = 5; + int tcp_keepalive_probes = 5; + int tcp_keepalive_time = 60; + int tcp_keepalive_on = 1; + if (setsockopt(cioc->fd, SOL_TCP, TCP_KEEPINTVL, + &tcp_keepalive_intvl, sizeof(tcp_keepalive_intvl)) < 0) { + perror("setsockopt failed\n"); + } + if (setsockopt(cioc->fd, SOL_TCP, TCP_KEEPCNT, + &tcp_keepalive_probes, sizeof(tcp_keepalive_probes)) < 0) { + perror("setsockopt failed\n"); + } + if (setsockopt(cioc->fd, SOL_TCP, TCP_KEEPIDLE, + &tcp_keepalive_time, sizeof(tcp_keepalive_time)) < 0) { + perror("setsockopt failed\n"); + } + if (setsockopt(cios->fd, SOL_SOCKET, SO_KEEPALIVE, + &tcp_keepalive_on, sizeof(tcp_keepalive_on)) < 0) { + perror("setsockopt failed\n"); + } } static void nbd_update_server_watch(void) -- 1.8.3.1