[Qemu-devel] [PULL 30/32] chardev: add Chardev.gcontext field

[Paolo Bonzini <pbonzini@redhat.com>]

From: Peter Xu <peterx@redhat.com>

It caches the gcontext that is used to poll the chardev IO.  Before this
patch, we only passed it in via chr_update_read_handlers().  However
that may not be enough if the char backend is disconnected and
reconnected afterward.  There are chardev codes that still assumed the
context be NULL (which is the main context).  Will fix that up in
following up patches.

Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <1505975754-21555-3-git-send-email-peterx@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 chardev/char.c         | 1 +
 include/chardev/char.h | 1 +
 2 files changed, 2 insertions(+)

diff --git a/chardev/char.c b/chardev/char.c
index e090dd5..89eabea 100644
--- a/chardev/char.c
+++ b/chardev/char.c
@@ -185,6 +185,7 @@ void qemu_chr_be_update_read_handlers(Chardev *s,
 {
     ChardevClass *cc = CHARDEV_GET_CLASS(s);
 
+    s->gcontext = context;
     if (cc->chr_update_read_handler) {
         cc->chr_update_read_handler(s, context);
     }
diff --git a/include/chardev/char.h b/include/chardev/char.h
index 2068ea4..84fb773 100644
--- a/include/chardev/char.h
+++ b/include/chardev/char.h
@@ -55,6 +55,7 @@ struct Chardev {
     int logfd;
     int be_open;
     GSource *gsource;
+    GMainContext *gcontext;
     DECLARE_BITMAP(features, QEMU_CHAR_FEATURE_LAST);
 };
 
-- 
1.8.3.1