diff options
| author | Hans de Goede <hdegoede@redhat.com> | 2013-03-26 11:07:56 +0100 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2013-03-27 10:26:49 -0500 |
| commit | 190832289fe670f764fb277e4dcaf00f94ca6553 (patch) | |
| tree | a8ba5e23991ffb6f2c229f52dd553677e14f1906 /qemu-char.c | |
| parent | c0c4bd2cfae0fb83696000f1bfc355f22e2b41cb (diff) | |
qemu-char: Automatically do fe_open / fe_close on qemu_chr_add_handlers
Most frontends can't really determine if the guest actually has the frontend
side open. So lets automatically generate fe_open / fe_close as soon as a
frontend becomes ready (as signalled by calling qemu_chr_add_handlers) /
becomes non ready (as signalled by setting all handlers to NULL).
And allow frontends which can actually determine if the guest is listening to
opt-out of this.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Message-id: 1364292483-16564-5-git-send-email-hdegoede@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'qemu-char.c')
| -rw-r--r-- | qemu-char.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/qemu-char.c b/qemu-char.c index c9890ad20f..947541a559 100644 --- a/qemu-char.c +++ b/qemu-char.c @@ -221,9 +221,14 @@ void qemu_chr_add_handlers(CharDriverState *s, IOEventHandler *fd_event, void *opaque) { + int fe_open; + if (!opaque && !fd_can_read && !fd_read && !fd_event) { /* chr driver being released. */ ++s->avail_connections; + fe_open = 0; + } else { + fe_open = 1; } s->chr_can_read = fd_can_read; s->chr_read = fd_read; @@ -232,6 +237,14 @@ void qemu_chr_add_handlers(CharDriverState *s, if (s->chr_update_read_handler) s->chr_update_read_handler(s); + if (!s->explicit_fe_open) { + if (fe_open) { + qemu_chr_fe_open(s); + } else { + qemu_chr_fe_close(s); + } + } + /* We're connecting to an already opened device, so let's make sure we also get the open event */ if (s->be_open) { |