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qemu-char: add qemu_chr_disconnect to close a fd accepted by listen fd

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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 <mukawa@igel.co.jp>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Tested-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Reviewed-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Reviewed-by: Victor Kaplansky <victork@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Tetsuya Mukawa 2016-06-06 18:45:02 +02:00 • committed by Michael S. Tsirkin
parent 523b018dde
commit 7d9d17f71e
2 changed files with 15 additions and 0 deletions
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7
include/sysemu/char.h
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@ -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: