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[Qemu-devel] [PATCH v2 20/23] char: add chr_wait_connected callback
From: |
marcandre . lureau |
Subject: |
[Qemu-devel] [PATCH v2 20/23] char: add chr_wait_connected callback |
Date: |
Fri, 24 Jun 2016 15:51:07 +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 1eb2d0f..0e3c35f 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 06eaba3..a0e7736 100644
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -3140,6 +3140,15 @@ 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 v2 11/23] vhost: use error_report() instead of fprintf(stderr, ...), (continued)
- [Qemu-devel] [PATCH v2 11/23] vhost: use error_report() instead of fprintf(stderr, ...), marcandre . lureau, 2016/06/24
- [Qemu-devel] [PATCH v2 12/23] vhost-user: check qemu_chr_fe_set_msgfds() return value, marcandre . lureau, 2016/06/24
- [Qemu-devel] [PATCH v2 16/23] Revert "vhost-net: do not crash if backend is not present", marcandre . lureau, 2016/06/24
- [Qemu-devel] [PATCH v2 14/23] qemu-char: check socket is actually connected, marcandre . lureau, 2016/06/24
- [Qemu-devel] [PATCH v2 18/23] vhost-net: success if backend has no ops->vhost_migration_done, marcandre . lureau, 2016/06/24
- [Qemu-devel] [PATCH v2 17/23] get_vhost_net() should be != null after vhost_user_init, marcandre . lureau, 2016/06/24
- [Qemu-devel] [PATCH v2 22/23] vhost-user: wait until backend init is completed, marcandre . lureau, 2016/06/24
- [Qemu-devel] [PATCH v2 20/23] char: add chr_wait_connected callback,
marcandre . lureau <=
- [Qemu-devel] [PATCH v2 19/23] vhost: add assert() to check runtime behaviour, marcandre . lureau, 2016/06/24
- [Qemu-devel] [PATCH v2 13/23] vhost-user: check vhost_user_{read, write}() return value, marcandre . lureau, 2016/06/24
- [Qemu-devel] [PATCH v2 21/23] char: add and use tcp_chr_wait_connected, marcandre . lureau, 2016/06/24
- [Qemu-devel] [PATCH v2 23/23] tests: add /vhost-user/connect-fail test, marcandre . lureau, 2016/06/24