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char: add backend hotswap handler

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Frontends should have an interface to setup the handler of a backend change.
The interface will be used in the next commits

Signed-off-by: Anton Nefedov <anton.nefedov@virtuozzo.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <1499342940-56739-3-git-send-email-anton.nefedov@virtuozzo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Anton Nefedov 2017-07-06 15:08:49 +03:00 • committed by Paolo Bonzini
parent 313e45b5fe
commit 81517ba37a
48 changed files with 77 additions and 58 deletions
Download patch file Download diff file Expand all files Collapse all files

10
net/colo-compare.c
View file

@ -543,7 +543,7 @@ static void compare_pri_chr_in(void *opaque, const uint8_t *buf, int size)
ret = net_fill_rstate(&s->pri_rs, buf, size);
if (ret == -1) {
qemu_chr_fe_set_handlers(&s->chr_pri_in, NULL, NULL, NULL,
qemu_chr_fe_set_handlers(&s->chr_pri_in, NULL, NULL, NULL, NULL,
NULL, NULL, true);
error_report("colo-compare primary_in error");
}
@ -560,7 +560,7 @@ static void compare_sec_chr_in(void *opaque, const uint8_t *buf, int size)
ret = net_fill_rstate(&s->sec_rs, buf, size);
if (ret == -1) {
qemu_chr_fe_set_handlers(&s->chr_sec_in, NULL, NULL, NULL,
qemu_chr_fe_set_handlers(&s->chr_sec_in, NULL, NULL, NULL, NULL,
NULL, NULL, true);
error_report("colo-compare secondary_in error");
}
@ -588,9 +588,11 @@ static void *colo_compare_thread(void *opaque)
s->worker_context = g_main_context_new();
qemu_chr_fe_set_handlers(&s->chr_pri_in, compare_chr_can_read,
compare_pri_chr_in, NULL, s, s->worker_context, true);
compare_pri_chr_in, NULL, NULL,
s, s->worker_context, true);
qemu_chr_fe_set_handlers(&s->chr_sec_in, compare_chr_can_read,
compare_sec_chr_in, NULL, s, s->worker_context, true);
compare_sec_chr_in, NULL, NULL,
s, s->worker_context, true);
s->compare_loop = g_main_loop_new(s->worker_context, FALSE);

6
net/filter-mirror.c
View file

@ -112,7 +112,7 @@ static void redirector_chr_read(void *opaque, const uint8_t *buf, int size)
if (ret == -1) {
qemu_chr_fe_set_handlers(&s->chr_in, NULL, NULL, NULL,
NULL, NULL, true);
NULL, NULL, NULL, true);
}
}
@ -124,7 +124,7 @@ static void redirector_chr_event(void *opaque, int event)
switch (event) {
case CHR_EVENT_CLOSED:
qemu_chr_fe_set_handlers(&s->chr_in, NULL, NULL, NULL,
NULL, NULL, true);
NULL, NULL, NULL, true);
break;
default:
break;
@ -245,7 +245,7 @@ static void filter_redirector_setup(NetFilterState *nf, Error **errp)
qemu_chr_fe_set_handlers(&s->chr_in, redirector_chr_can_read,
redirector_chr_read, redirector_chr_event,
nf, NULL, true);
NULL, nf, NULL, true);
}
if (s->outdev) {

2
net/slirp.c
View file

@ -778,7 +778,7 @@ static int slirp_guestfwd(SlirpState *s, const char *config_str,
fwd->slirp = s->slirp;
qemu_chr_fe_set_handlers(&fwd->hd, guestfwd_can_read, guestfwd_read,
NULL, fwd, NULL, true);
NULL, NULL, fwd, NULL, true);
}
return 0;

7
net/vhost-user.c
View file

@ -211,7 +211,7 @@ static void chr_closed_bh(void *opaque)
vhost_user_stop(queues, ncs);
qemu_chr_fe_set_handlers(&s->chr, NULL, NULL, net_vhost_user_event,
opaque, NULL, true);
NULL, opaque, NULL, true);
if (err) {
error_report_err(err);
@ -257,7 +257,7 @@ static void net_vhost_user_event(void *opaque, int event)
g_source_remove(s->watch);
s->watch = 0;
qemu_chr_fe_set_handlers(&s->chr, NULL, NULL, NULL,
qemu_chr_fe_set_handlers(&s->chr, NULL, NULL, NULL, NULL,
NULL, NULL, false);
aio_bh_schedule_oneshot(ctx, chr_closed_bh, opaque);
@ -305,7 +305,8 @@ static int net_vhost_user_init(NetClientState *peer, const char *device,
return -1;
}
qemu_chr_fe_set_handlers(&s->chr, NULL, NULL,
net_vhost_user_event, nc0->name, NULL, true);
net_vhost_user_event, NULL, nc0->name, NULL,
true);
} while (!s->started);
assert(s->vhost_net);