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chardev: introduce chr_machine_done hook

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Introduce ChardevClass.chr_machine_done() hook so that chardevs can run
customized procedures after machine init.

There was an existing mux user already that did similar thing but used a
raw machine done notifier.  Generalize it into a framework, and let the
mux chardevs provide such a class-specific hook to achieve the same
thing.  Then we can move the mux related code to the char-mux.c file.

Since at it, replace the mux_realized variable with the global
machine_init_done varible.

This notifier framework will be further leverged by other type of
chardevs soon.

Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20180306053320.15401-6-peterx@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Peter Xu 2018-03-06 13:33:16 +08:00 • committed by Paolo Bonzini
parent ce1230c054
commit c7278b4355
5 changed files with 48 additions and 33 deletions
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2
include/chardev/char.h
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@ -248,6 +248,8 @@ typedef struct ChardevClass {
void (*chr_set_echo)(Chardev *chr, bool echo);
void (*chr_set_fe_open)(Chardev *chr, int fe_open);
void (*chr_be_event)(Chardev *s, int event);
/* Return 0 if succeeded, 1 if failed */
int (*chr_machine_done)(Chardev *chr);
} ChardevClass;
Chardev *qemu_chardev_new(const char *id, const char *typename,