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[2/2] spice-char: notify the server when chardev is writable

Message ID 1430837936-24321-2-git-send-email-marcandre.lureau@gmail.com
State New
Headers show

Commit Message

Marc-André Lureau May 5, 2015, 2:58 p.m. UTC 
The spice server is polling on write, unless
SPICE_CHAR_DEVICE_NOTIFY_WRITABLE flag is set. In this case, qemu must
call spice_server_char_device_wakeup() when the frontend is writable.

Signed-off-by: Marc-André Lureau <marcandre.lureau@gmail.com>
---
 spice-qemu-char.c | 11 +++++++++++
 1 file changed, 11 insertions(+)
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Patch

diff --git a/spice-qemu-char.c b/spice-qemu-char.c
index a4f4e57..0f8903e 100644
--- a/spice-qemu-char.c
+++ b/spice-qemu-char.c
@@ -110,6 +110,9 @@  static SpiceCharDeviceInterface vmc_interface = {
 #if SPICE_SERVER_VERSION >= 0x000c02
     .event              = vmc_event,
 #endif
+#if SPICE_SERVER_VERSION >= 0x000c06
+    .flags              = SPICE_CHAR_DEVICE_NOTIFY_WRITABLE,
+#endif
 };
 
 
@@ -260,6 +263,13 @@  static void print_allowed_subtypes(void)
     fprintf(stderr, "\n");
 }
 
+static void spice_chr_accept_input(struct CharDriverState *chr)
+{
+    SpiceCharDriver *s = chr->opaque;
+
+    spice_server_char_device_wakeup(&s->sin);
+}
+
 static CharDriverState *chr_open(const char *subtype,
     void (*set_fe_open)(struct CharDriverState *, int))
 
@@ -279,6 +289,7 @@  static CharDriverState *chr_open(const char *subtype,
     chr->chr_set_fe_open = set_fe_open;
     chr->explicit_be_open = true;
     chr->chr_fe_event = spice_chr_fe_event;
+    chr->chr_accept_input = spice_chr_accept_input;
 
     QLIST_INSERT_HEAD(&spice_chars, s, next);