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[Qemu-devel] [PATCH v4 21/29] char: add chr_wait_connected callback
From: |
marcandre . lureau |
Subject: |
[Qemu-devel] [PATCH v4 21/29] char: add chr_wait_connected callback |
Date: |
Thu, 7 Jul 2016 03:00:45 +0200 |
From: Marc-André Lureau <address@hidden>
A function to wait on the backend to be connected, to be used in the
following patches.
Signed-off-by: Marc-André Lureau <address@hidden>
---
include/sysemu/char.h | 8 ++++++++
qemu-char.c | 9 +++++++++
2 files changed, 17 insertions(+)
diff --git a/include/sysemu/char.h b/include/sysemu/char.h
index 57df10a..15aa8ee 100644
--- a/include/sysemu/char.h
+++ b/include/sysemu/char.h
@@ -70,6 +70,7 @@ struct CharDriverState {
int (*get_msgfds)(struct CharDriverState *s, int* fds, int num);
int (*set_msgfds)(struct CharDriverState *s, int *fds, int num);
int (*chr_add_client)(struct CharDriverState *chr, int fd);
+ int (*chr_wait_connected)(struct CharDriverState *chr, Error **errp);
IOEventHandler *chr_event;
IOCanReadHandler *chr_can_read;
IOReadHandler *chr_read;
@@ -151,6 +152,13 @@ CharDriverState *qemu_chr_new(const char *label, const
char *filename,
*/
void qemu_chr_disconnect(CharDriverState *chr);
+/**
+ * @qemu_chr_wait_connected:
+ *
+ * Wait for characted backend to be connected.
+ */
+int qemu_chr_wait_connected(CharDriverState *chr, Error **errp);
+
/**
* @qemu_chr_new_noreplay:
*
diff --git a/qemu-char.c b/qemu-char.c
index c4fa779..1daadc1 100644
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -3139,6 +3139,15 @@ static gboolean tcp_chr_accept(QIOChannel *channel,
return TRUE;
}
+int qemu_chr_wait_connected(CharDriverState *chr, Error **errp)
+{
+ if (chr->chr_wait_connected) {
+ return chr->chr_wait_connected(chr, errp);
+ }
+
+ return 0;
+}
+
static void tcp_chr_close(CharDriverState *chr)
{
TCPCharDriver *s = chr->opaque;
--
2.9.0
- [Qemu-devel] [PATCH v4 12/29] qemu-char: fix qemu_chr_fe_set_msgfds() crash when disconnected, (continued)
- [Qemu-devel] [PATCH v4 12/29] qemu-char: fix qemu_chr_fe_set_msgfds() crash when disconnected, marcandre . lureau, 2016/07/06
- [Qemu-devel] [PATCH v4 15/29] vhost-user: check vhost_user_{read, write}() return value, marcandre . lureau, 2016/07/06
- [Qemu-devel] [PATCH v4 14/29] vhost-user: check qemu_chr_fe_set_msgfds() return value, marcandre . lureau, 2016/07/06
- [Qemu-devel] [PATCH v4 13/29] vhost-user: call set_msgfds unconditionally, marcandre . lureau, 2016/07/06
- [Qemu-devel] [PATCH v4 17/29] vhost-user: add get_vhost_net() assertions, marcandre . lureau, 2016/07/06
- [Qemu-devel] [PATCH v4 16/29] vhost-user: keep vhost_net after a disconnection, marcandre . lureau, 2016/07/06
- [Qemu-devel] [PATCH v4 18/29] Revert "vhost-net: do not crash if backend is not present", marcandre . lureau, 2016/07/06
- [Qemu-devel] [PATCH v4 19/29] vhost-net: vhost_migration_done is vhost-user specific, marcandre . lureau, 2016/07/06
- [Qemu-devel] [PATCH v4 20/29] vhost: add assert() to check runtime behaviour, marcandre . lureau, 2016/07/06
- [Qemu-devel] [PATCH v4 22/29] char: add and use tcp_chr_wait_connected, marcandre . lureau, 2016/07/06
- [Qemu-devel] [PATCH v4 21/29] char: add chr_wait_connected callback,
marcandre . lureau <=
- [Qemu-devel] [PATCH v4 23/29] vhost-user: wait until backend init is completed, marcandre . lureau, 2016/07/06
- [Qemu-devel] [PATCH v4 24/29] tests: plug some leaks in virtio-net-test, marcandre . lureau, 2016/07/06
- [Qemu-devel] [PATCH v4 25/29] tests: fix vhost-user-test leak, marcandre . lureau, 2016/07/06
- [Qemu-devel] [PATCH v4 26/29] tests: add /vhost-user/connect-fail test, marcandre . lureau, 2016/07/06
- [Qemu-devel] [PATCH v4 27/29] tests: add a simple /vhost-user/multiqueue test, marcandre . lureau, 2016/07/06
- [Qemu-devel] [PATCH v4 28/29] vhost-user: add error report in vhost_user_write(), marcandre . lureau, 2016/07/06
- [Qemu-devel] [PATCH v4 29/29] vhost: add vhost_net_set_backend(), marcandre . lureau, 2016/07/06
- Re: [Qemu-devel] [PATCH v4 00/29] vhost-user reconnect fixes, Marc-André Lureau, 2016/07/07
- Re: [Qemu-devel] [PATCH v4 00/29] vhost-user reconnect fixes, Michael S. Tsirkin, 2016/07/20