motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-05 00:33:55 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

char: add backend hotswap handler

Browse source 
Frontends should have an interface to setup the handler of a backend change.
The interface will be used in the next commits

Signed-off-by: Anton Nefedov <anton.nefedov@virtuozzo.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <1499342940-56739-3-git-send-email-anton.nefedov@virtuozzo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Anton Nefedov 2017-07-06 15:08:49 +03:00 • committed by Paolo Bonzini
parent 313e45b5fe
commit 81517ba37a
48 changed files with 77 additions and 58 deletions
Download patch file Download diff file Expand all files Collapse all files

5
include/chardev/char-fe.h
View file

@ -4,6 +4,7 @@
#include "chardev/char.h"
typedef void IOEventHandler(void *opaque, int event);
typedef int BackendChangeHandler(void *opaque);
/* This is the backend as seen by frontend, the actual backend is
* Chardev */
@ -12,6 +13,7 @@ struct CharBackend {
IOEventHandler *chr_event;
IOCanReadHandler *chr_can_read;
IOReadHandler *chr_read;
BackendChangeHandler *chr_be_change;
void *opaque;
int tag;
int fe_open;
@ -54,6 +56,8 @@ Chardev *qemu_chr_fe_get_driver(CharBackend *be);
* receive
* @fd_read: callback to receive data from char
* @fd_event: event callback
* @be_change: backend change callback; passing NULL means hot backend change
* is not supported and will not be attempted
* @opaque: an opaque pointer for the callbacks
* @context: a main loop context or NULL for the default
* @set_open: whether to call qemu_chr_fe_set_open() implicitely when
@ -68,6 +72,7 @@ void qemu_chr_fe_set_handlers(CharBackend *b,
IOCanReadHandler *fd_can_read,
IOReadHandler *fd_read,
IOEventHandler *fd_event,
BackendChangeHandler *be_change,
void *opaque,
GMainContext *context,
bool set_open);