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ui: add some vdagent related traces

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This helps debugging clipboard serial sync issues.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20220912102455.111765-2-marcandre.lureau@redhat.com>

[ kraxel: code style fix ]

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Marc-André Lureau 2022-09-12 14:24:51 +04:00 committed by Gerd Hoffmann
parent 64d3fec76c
commit 410840cdb1
3 changed files with 18 additions and 2 deletions
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11
ui/clipboard.c
View File

@ -1,5 +1,6 @@
#include "qemu/osdep.h"
#include "ui/clipboard.h"
#include "trace.h"
static NotifierList clipboard_notifiers =
NOTIFIER_LIST_INITIALIZER(clipboard_notifiers);
@ -43,17 +44,23 @@ void qemu_clipboard_peer_release(QemuClipboardPeer *peer,
bool qemu_clipboard_check_serial(QemuClipboardInfo *info, bool client)
{
bool ok;
if (!info->has_serial ||
!cbinfo[info->selection] ||
!cbinfo[info->selection]->has_serial) {
trace_clipboard_check_serial(-1, -1, true);
return true;
}
if (client) {
return cbinfo[info->selection]->serial >= info->serial;
ok = cbinfo[info->selection]->serial >= info->serial;
} else {
return cbinfo[info->selection]->serial > info->serial;
ok = cbinfo[info->selection]->serial > info->serial;
}
trace_clipboard_check_serial(cbinfo[info->selection]->serial, info->serial, ok);
return ok;
}
void qemu_clipboard_update(QemuClipboardInfo *info)

5
ui/trace-events
View File

@ -127,15 +127,20 @@ xkeymap_vendor(const char *name) "vendor '%s'"
xkeymap_keycodes(const char *name) "keycodes '%s'"
xkeymap_keymap(const char *name) "keymap '%s'"
# clipboard.c
clipboard_check_serial(int cur, int recv, bool ok) "cur:%d recv:%d %d"
# vdagent.c
vdagent_open(void) ""
vdagent_close(void) ""
vdagent_disconnect(void) ""
vdagent_send(const char *name) "msg %s"
vdagent_send_empty_clipboard(void) ""
vdagent_recv_chunk(uint32_t size) "size %d"
vdagent_recv_msg(const char *name, uint32_t size) "msg %s, size %d"
vdagent_peer_cap(const char *name) "cap %s"
vdagent_cb_grab_selection(const char *name) "selection %s"
vdagent_cb_grab_discard(const char *name, int cur, int recv) "selection %s, cur:%d recv:%d"
vdagent_cb_grab_type(const char *name) "type %s"
vdagent_cb_serial_discard(uint32_t current, uint32_t received) "current=%u, received=%u"

4
ui/vdagent.c
View File

@ -533,6 +533,8 @@ static void vdagent_clipboard_recv_grab(VDAgentChardev *vd, uint8_t s, uint32_t
info->has_serial = true;
info->serial = *(uint32_t *)data;
if (info->serial < vd->last_serial[s]) {
trace_vdagent_cb_grab_discard(GET_NAME(sel_name, s),
vd->last_serial[s], info->serial);
/* discard lower-ordering guest grab */
return;
}
@ -853,6 +855,8 @@ static void vdagent_chr_accept_input(Chardev *chr)
static void vdagent_disconnect(VDAgentChardev *vd)
{
trace_vdagent_disconnect();
buffer_reset(&vd->outbuf);
vdagent_reset_bufs(vd);
vd->caps = 0;