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chardev: add Chardev.gcontext field 

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>
This commit is contained in:
Peter Xu 2017-09-21 14:35:52 +08:00 committed by Paolo Bonzini
parent 07241c205c
commit 95eeeba669
2 changed files with 2 additions and 0 deletions
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1
chardev/char.c
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@ -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);
}

1
include/chardev/char.h
View File

@ -55,6 +55,7 @@ struct Chardev {
int logfd;
int be_open;
GSource *gsource;
GMainContext *gcontext;
DECLARE_BITMAP(features, QEMU_CHAR_FEATURE_LAST);
};