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[Qemu-devel] [PULL 05/32] qemu-char: add qemu_chr_disconnect to close a
From: |
Michael S. Tsirkin |
Subject: |
[Qemu-devel] [PULL 05/32] qemu-char: add qemu_chr_disconnect to close a fd accepted by listen fd |
Date: |
Mon, 13 Jun 2016 23:39:06 +0300 |
From: Tetsuya Mukawa <address@hidden>
The patch introduces qemu_chr_disconnect(). The function is used for
closing a fd accepted by listen fd. Though we already have qemu_chr_delete(),
but it closes not only accepted fd but also listen fd. This new function
is used when we still want to keep listen fd.
Signed-off-by: Tetsuya Mukawa <address@hidden>
Reviewed-by: Marc-André Lureau <address@hidden>
Tested-by: Yuanhan Liu <address@hidden>
Reviewed-by: Yuanhan Liu <address@hidden>
Reviewed-by: Victor Kaplansky <address@hidden>
Reviewed-by: Michael S. Tsirkin <address@hidden>
Signed-off-by: Michael S. Tsirkin <address@hidden>
---
include/sysemu/char.h | 7 +++++++
qemu-char.c | 8 ++++++++
2 files changed, 15 insertions(+)
diff --git a/include/sysemu/char.h b/include/sysemu/char.h
index 372a6fd..1eb2d0f 100644
--- a/include/sysemu/char.h
+++ b/include/sysemu/char.h
@@ -75,6 +75,7 @@ struct CharDriverState {
IOReadHandler *chr_read;
void *handler_opaque;
void (*chr_close)(struct CharDriverState *chr);
+ void (*chr_disconnect)(struct CharDriverState *chr);
void (*chr_accept_input)(struct CharDriverState *chr);
void (*chr_set_echo)(struct CharDriverState *chr, bool echo);
void (*chr_set_fe_open)(struct CharDriverState *chr, int fe_open);
@@ -143,6 +144,12 @@ void qemu_chr_parse_common(QemuOpts *opts, ChardevCommon
*backend);
*/
CharDriverState *qemu_chr_new(const char *label, const char *filename,
void (*init)(struct CharDriverState *s));
+/**
+ * @qemu_chr_disconnect:
+ *
+ * Close a fd accpeted by character backend.
+ */
+void qemu_chr_disconnect(CharDriverState *chr);
/**
* @qemu_chr_new_noreplay:
diff --git a/qemu-char.c b/qemu-char.c
index b13ecbb..e312777 100644
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -4012,6 +4012,13 @@ void qemu_chr_fe_release(CharDriverState *s)
s->avail_connections++;
}
+void qemu_chr_disconnect(CharDriverState *chr)
+{
+ if (chr->chr_disconnect) {
+ chr->chr_disconnect(chr);
+ }
+}
+
static void qemu_chr_free_common(CharDriverState *chr)
{
g_free(chr->filename);
@@ -4389,6 +4396,7 @@ static CharDriverState *qmp_chardev_open_socket(const
char *id,
chr->chr_write = tcp_chr_write;
chr->chr_sync_read = tcp_chr_sync_read;
chr->chr_close = tcp_chr_close;
+ chr->chr_disconnect = tcp_chr_disconnect;
chr->get_msgfds = tcp_get_msgfds;
chr->set_msgfds = tcp_set_msgfds;
chr->chr_add_client = tcp_chr_add_client;
--
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