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[Qemu-devel] [PATCH 1/2] char: add qemu_chr_be_is_fe_connected
From: |
Alon Levy |
Subject: |
[Qemu-devel] [PATCH 1/2] char: add qemu_chr_be_is_fe_connected |
Date: |
Thu, 21 Mar 2013 18:35:15 +0200 |
Note that the handler is called chr_is_guest_connected and not
chr_is_fe_connected, consistent with other members of CharDriverState.
Signed-off-by: Alon Levy <address@hidden>
---
hw/virtio-console.c | 9 +++++++++
include/char/char.h | 11 +++++++++++
qemu-char.c | 9 +++++++++
3 files changed, 29 insertions(+)
diff --git a/hw/virtio-console.c b/hw/virtio-console.c
index e2d1c58..643e24e 100644
--- a/hw/virtio-console.c
+++ b/hw/virtio-console.c
@@ -120,6 +120,13 @@ static void chr_event(void *opaque, int event)
}
}
+static bool chr_is_guest_connected(void *opaque)
+{
+ VirtConsole *vcon = opaque;
+
+ return vcon->port.guest_connected;
+}
+
static int virtconsole_initfn(VirtIOSerialPort *port)
{
VirtConsole *vcon = DO_UPCAST(VirtConsole, port, port);
@@ -133,6 +140,8 @@ static int virtconsole_initfn(VirtIOSerialPort *port)
if (vcon->chr) {
qemu_chr_add_handlers(vcon->chr, chr_can_read, chr_read, chr_event,
vcon);
+ /* only user of chr_is_guest_connected so leave it as special cased*/
+ vcon->chr->chr_is_guest_connected = chr_is_guest_connected;
}
return 0;
diff --git a/include/char/char.h b/include/char/char.h
index 0326b2a..b41ddc0 100644
--- a/include/char/char.h
+++ b/include/char/char.h
@@ -52,6 +52,7 @@ typedef struct {
#define CHR_TIOCM_RTS 0x004
typedef void IOEventHandler(void *opaque, int event);
+typedef bool IOIsGuestConnectedHandler(void *opaque);
struct CharDriverState {
void (*init)(struct CharDriverState *s);
@@ -64,6 +65,7 @@ struct CharDriverState {
IOEventHandler *chr_event;
IOCanReadHandler *chr_can_read;
IOReadHandler *chr_read;
+ IOIsGuestConnectedHandler *chr_is_guest_connected;
void *handler_opaque;
void (*chr_close)(struct CharDriverState *chr);
void (*chr_accept_input)(struct CharDriverState *chr);
@@ -229,6 +231,15 @@ void qemu_chr_be_write(CharDriverState *s, uint8_t *buf,
int len);
*/
void qemu_chr_be_event(CharDriverState *s, int event);
+/**
+ * @qemu_chr_be_is_fe_connected:
+ *
+ * Back end calls this to check if the front end is connected.
+ *
+ * Returns: true if the guest (front end) is connected, false otherwise.
+ */
+bool qemu_chr_be_is_fe_connected(CharDriverState *s);
+
void qemu_chr_add_handlers(CharDriverState *s,
IOCanReadHandler *fd_can_read,
IOReadHandler *fd_read,
diff --git a/qemu-char.c b/qemu-char.c
index 4e011df..77a501a 100644
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -120,6 +120,15 @@ void qemu_chr_be_event(CharDriverState *s, int event)
s->chr_event(s->handler_opaque, event);
}
+bool qemu_chr_be_is_fe_connected(CharDriverState *s)
+{
+ if (s->chr_is_guest_connected) {
+ return s->chr_is_guest_connected(s->handler_opaque);
+ }
+ /* default to always connected */
+ return true;
+}
+
static gboolean qemu_chr_generic_open_bh(gpointer opaque)
{
CharDriverState *s = opaque;
--
1.8.1.4
- [Qemu-devel] [PATCH 1/4] char: add a post_load callback, (continued)
- [Qemu-devel] [PATCH 1/4] char: add a post_load callback, Alon Levy, 2013/03/20
- Re: [Qemu-devel] [PATCH 1/4] char: add a post_load callback, Alon Levy, 2013/03/20
- Re: [Qemu-devel] [PATCH 1/4] char: add a post_load callback, Anthony Liguori, 2013/03/20
- Re: [Qemu-devel] [PATCH 1/4] char: add a post_load callback, Hans de Goede, 2013/03/21
- Re: [Qemu-devel] [PATCH 1/4] char: add a post_load callback, Hans de Goede, 2013/03/21
- [Qemu-devel] [PATCH v3 0/2] spice-qemu-char fix agent mouse after migration, Alon Levy, 2013/03/21
- [Qemu-devel] [PATCH 1/2] char: add qemu_chr_be_is_fe_connected,
Alon Levy <=
- Re: [Qemu-devel] [PATCH 1/2] char: add qemu_chr_be_is_fe_connected, Anthony Liguori, 2013/03/21
- Re: [Qemu-devel] [PATCH 1/2] char: add qemu_chr_be_is_fe_connected, Alon Levy, 2013/03/21
- Re: [Qemu-devel] [PATCH 1/2] char: add qemu_chr_be_is_fe_connected, Anthony Liguori, 2013/03/21
- Re: [Qemu-devel] [PATCH 1/2] char: add qemu_chr_be_is_fe_connected, Alon Levy, 2013/03/21
- Re: [Qemu-devel] [PATCH 1/2] char: add qemu_chr_be_is_fe_connected, Alon Levy, 2013/03/21
- Re: [Qemu-devel] [PATCH 1/2] char: add qemu_chr_be_is_fe_connected, Hans de Goede, 2013/03/22
- Re: [Qemu-devel] [PATCH 1/2] char: add qemu_chr_be_is_fe_connected, Anthony Liguori, 2013/03/22
- Re: [Qemu-devel] [PATCH 1/2] char: add qemu_chr_be_is_fe_connected, Gerd Hoffmann, 2013/03/22
- Re: [Qemu-devel] [PATCH 1/2] char: add qemu_chr_be_is_fe_connected, Hans de Goede, 2013/03/22
- Re: [Qemu-devel] [PATCH 1/2] char: add qemu_chr_be_is_fe_connected, Anthony Liguori, 2013/03/22