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[Qemu-devel] [PULL 33/41] char: add chr_wait_connected callback
From: |
Michael S. Tsirkin |
Subject: |
[Qemu-devel] [PULL 33/41] char: add chr_wait_connected callback |
Date: |
Fri, 29 Jul 2016 06:17:00 +0300 |
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>
Reviewed-by: Michael S. Tsirkin <address@hidden>
Signed-off-by: Michael S. Tsirkin <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 0ea9eac..ee7e554 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;
@@ -159,6 +160,13 @@ void qemu_chr_disconnect(CharDriverState *chr);
void qemu_chr_cleanup(void);
/**
+ * @qemu_chr_wait_connected:
+ *
+ * Wait for characted backend to be connected.
+ */
+int qemu_chr_wait_connected(CharDriverState *chr, Error **errp);
+
+/**
* @qemu_chr_new_noreplay:
*
* Create a new character backend from a URI.
diff --git a/qemu-char.c b/qemu-char.c
index 1274f50..6eba615 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;
--
MST
- [Qemu-devel] [PULL 23/41] vhost: use error_report() instead of fprintf(stderr, ...), (continued)
- [Qemu-devel] [PULL 23/41] vhost: use error_report() instead of fprintf(stderr, ...), Michael S. Tsirkin, 2016/07/28
- [Qemu-devel] [PULL 24/41] qemu-char: fix qemu_chr_fe_set_msgfds() crash when disconnected, Michael S. Tsirkin, 2016/07/28
- [Qemu-devel] [PULL 25/41] vhost-user: call set_msgfds unconditionally, Michael S. Tsirkin, 2016/07/28
- [Qemu-devel] [PULL 26/41] vhost-user: check qemu_chr_fe_set_msgfds() return value, Michael S. Tsirkin, 2016/07/28
- [Qemu-devel] [PULL 27/41] vhost-user: check vhost_user_{read, write}() return value, Michael S. Tsirkin, 2016/07/28
- [Qemu-devel] [PULL 28/41] vhost-user: keep vhost_net after a disconnection, Michael S. Tsirkin, 2016/07/28
- [Qemu-devel] [PULL 29/41] vhost-user: add get_vhost_net() assertions, Michael S. Tsirkin, 2016/07/28
- [Qemu-devel] [PULL 30/41] Revert "vhost-net: do not crash if backend is not present", Michael S. Tsirkin, 2016/07/28
- [Qemu-devel] [PULL 31/41] vhost-net: vhost_migration_done is vhost-user specific, Michael S. Tsirkin, 2016/07/28
- [Qemu-devel] [PULL 32/41] vhost: add assert() to check runtime behaviour, Michael S. Tsirkin, 2016/07/28
- [Qemu-devel] [PULL 33/41] char: add chr_wait_connected callback,
Michael S. Tsirkin <=
- [Qemu-devel] [PULL 35/41] vhost-user: wait until backend init is completed, Michael S. Tsirkin, 2016/07/28
- [Qemu-devel] [PULL 34/41] char: add and use tcp_chr_wait_connected, Michael S. Tsirkin, 2016/07/28
- [Qemu-devel] [PULL 36/41] tests: plug some leaks in virtio-net-test, Michael S. Tsirkin, 2016/07/28
- [Qemu-devel] [PULL 37/41] tests: fix vhost-user-test leak, Michael S. Tsirkin, 2016/07/28
- [Qemu-devel] [PULL 38/41] vhost-user: add error report in vhost_user_write(), Michael S. Tsirkin, 2016/07/28
- [Qemu-devel] [PULL 39/41] vhost: add vhost_net_set_backend(), Michael S. Tsirkin, 2016/07/28
- [Qemu-devel] [PULL 41/41] mptsas: Fix a migration compatible issue, Michael S. Tsirkin, 2016/07/28
- [Qemu-devel] [PULL 40/41] vhost: do not update last avail idx on get_vring_base() failure, Michael S. Tsirkin, 2016/07/28
- Re: [Qemu-devel] [PULL 00/41] pc, pci, virtio: cleanups, fixes, Peter Maydell, 2016/07/29