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qemu-char: Add fe_open tracking

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Add tracking of the fe_open state to struct CharDriverState.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Message-id: 1364292483-16564-4-git-send-email-hdegoede@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Hans de Goede 2013-03-26 11:07:55 +01:00 committed by Anthony Liguori
parent fee204fd46
commit c0c4bd2cfa
2 changed files with 9 additions and 0 deletions
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1
include/char/char.h
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@ -75,6 +75,7 @@ struct CharDriverState {
char *label; char *label;
char *filename; char *filename;
int be_open; int be_open;
int fe_open;
int avail_connections; int avail_connections;
QemuOpts *opts; QemuOpts *opts;
QTAILQ_ENTRY(CharDriverState) next; QTAILQ_ENTRY(CharDriverState) next;

8
qemu-char.c
View File

@ -3412,6 +3412,10 @@ void qemu_chr_fe_set_echo(struct CharDriverState *chr, bool echo)
void qemu_chr_fe_open(struct CharDriverState *chr) void qemu_chr_fe_open(struct CharDriverState *chr)
{ {
if (chr->fe_open) {
return;
}
chr->fe_open = 1;
if (chr->chr_guest_open) { if (chr->chr_guest_open) {
chr->chr_guest_open(chr); chr->chr_guest_open(chr);
} }
@ -3419,6 +3423,10 @@ void qemu_chr_fe_open(struct CharDriverState *chr)
void qemu_chr_fe_close(struct CharDriverState *chr) void qemu_chr_fe_close(struct CharDriverState *chr)
{ {
if (!chr->fe_open) {
return;
}
chr->fe_open = 0;
if (chr->chr_guest_close) { if (chr->chr_guest_close) {
chr->chr_guest_close(chr); chr->chr_guest_close(chr);
} }