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[Qemu-devel] [PATCH] char: Emit 'OPENED' events on char device open
From: |
Amit Shah |
Subject: |
[Qemu-devel] [PATCH] char: Emit 'OPENED' events on char device open |
Date: |
Wed, 2 Sep 2009 17:46:45 +0530 |
Notify users of the char interface whenever the file / connection is
opened.
The existing RESET event is triggered when the qemu char state is reset
as well; which may not be as interesting as char device open events.
Signed-off-by: Amit Shah <address@hidden>
---
qemu-char.c | 14 +++++++++++++-
qemu-char.h | 1 +
2 files changed, 14 insertions(+), 1 deletions(-)
diff --git a/qemu-char.c b/qemu-char.c
index c25ed1c..5fe882a 100644
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -474,6 +474,8 @@ static CharDriverState *qemu_chr_open_mux(CharDriverState
*drv)
chr->chr_write = mux_chr_write;
chr->chr_update_read_handler = mux_chr_update_read_handler;
chr->chr_accept_input = mux_chr_accept_input;
+
+ qemu_chr_event(chr, CHR_EVENT_OPENED);
return chr;
}
@@ -622,6 +624,7 @@ static CharDriverState *qemu_chr_open_fd(int fd_in, int
fd_out)
chr->chr_close = fd_chr_close;
qemu_chr_reset(chr);
+ qemu_chr_event(chr, CHR_EVENT_OPENED);
return chr;
}
@@ -913,8 +916,10 @@ static void pty_chr_state(CharDriverState *chr, int
connected)
* the virtual device linked to our pty. */
qemu_mod_timer(s->timer, qemu_get_clock(rt_clock) + 1000);
} else {
- if (!s->connected)
+ if (!s->connected) {
qemu_chr_reset(chr);
+ qemu_chr_event(chr, CHR_EVENT_OPENED);
+ }
s->connected = 1;
}
}
@@ -1152,6 +1157,7 @@ static CharDriverState *qemu_chr_open_tty(const char
*filename)
}
chr->chr_ioctl = tty_serial_ioctl;
qemu_chr_reset(chr);
+ qemu_chr_event(chr, CHR_EVENT_OPENED);
return chr;
}
#else /* ! __linux__ && ! __sun__ */
@@ -1297,6 +1303,7 @@ static CharDriverState *qemu_chr_open_pp(const char
*filename)
chr->opaque = drv;
qemu_chr_reset(chr);
+ qemu_chr_event(chr, CHR_EVENT_OPENED);
return chr;
}
@@ -1576,6 +1583,7 @@ static CharDriverState *qemu_chr_open_win(const char
*filename)
return NULL;
}
qemu_chr_reset(chr);
+ qemu_chr_event(chr, CHR_EVENT_OPENED);
return chr;
}
@@ -1675,6 +1683,7 @@ static CharDriverState *qemu_chr_open_win_pipe(const char
*filename)
return NULL;
}
qemu_chr_reset(chr);
+ qemu_chr_event(chr, CHR_EVENT_OPENED);
return chr;
}
@@ -1689,6 +1698,7 @@ static CharDriverState *qemu_chr_open_win_file(HANDLE
fd_out)
chr->opaque = s;
chr->chr_write = win_chr_write;
qemu_chr_reset(chr);
+ qemu_chr_event(chr, CHR_EVENT_OPENED);
return chr;
}
@@ -1823,6 +1833,7 @@ static CharDriverState *qemu_chr_open_udp(const char *def)
chr->chr_write = udp_chr_write;
chr->chr_update_read_handler = udp_chr_update_read_handler;
chr->chr_close = udp_chr_close;
+ qemu_chr_event(chr, CHR_EVENT_OPENED);
return chr;
return_err:
@@ -2029,6 +2040,7 @@ static void tcp_chr_connect(void *opaque)
qemu_set_fd_handler2(s->fd, tcp_chr_read_poll,
tcp_chr_read, NULL, chr);
qemu_chr_reset(chr);
+ qemu_chr_event(chr, CHR_EVENT_OPENED);
}
#define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c;
diff --git a/qemu-char.h b/qemu-char.h
index df620bc..d725d48 100644
--- a/qemu-char.h
+++ b/qemu-char.h
@@ -12,6 +12,7 @@
#define CHR_EVENT_MUX_IN 3 /* mux-focus was set to this terminal */
#define CHR_EVENT_MUX_OUT 4 /* mux-focus will move on */
#define CHR_EVENT_CLOSED 5 /* connection closed */
+#define CHR_EVENT_OPENED 6 /* connection opened */
#define CHR_IOCTL_SERIAL_SET_PARAMS 1
--
1.6.2.5
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