aboutsummaryrefslogtreecommitdiff
path: root/qemu-char.c
diff options
context:
space:
mode:
authorAmit Shah <amit.shah@redhat.com>2013-08-28 15:23:37 +0530
committerAmit Shah <amit.shah@redhat.com>2013-09-05 18:30:31 +0530
commit26da70c72524eb22c946ab19ec98a217b8252f7e (patch)
treed7a30f5d87ad0eaf815520c8219de5c54d04b9fb /qemu-char.c
parent7ba9addc165b37b764baa08c02518b15b2361707 (diff)
char: use common function to disable callbacks on chardev close
This deduplicates code used a lot of times. CC: <qemu-stable@nongnu.org> Reviewed-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
Diffstat (limited to 'qemu-char.c')
-rw-r--r--qemu-char.c62
1 files changed, 19 insertions, 43 deletions
diff --git a/qemu-char.c b/qemu-char.c
index 99f2b949f4..0a0833f77b 100644
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -725,6 +725,14 @@ static void io_remove_watch_poll(guint tag)
g_source_destroy(&iwp->parent);
}
+static void remove_fd_in_watch(CharDriverState *chr)
+{
+ if (chr->fd_in_tag) {
+ io_remove_watch_poll(chr->fd_in_tag);
+ chr->fd_in_tag = 0;
+ }
+}
+
#ifndef _WIN32
static GIOChannel *io_channel_from_fd(int fd)
{
@@ -829,10 +837,7 @@ static gboolean fd_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
status = g_io_channel_read_chars(chan, (gchar *)buf,
len, &bytes_read, NULL);
if (status == G_IO_STATUS_EOF) {
- if (chr->fd_in_tag) {
- io_remove_watch_poll(chr->fd_in_tag);
- chr->fd_in_tag = 0;
- }
+ remove_fd_in_watch(chr);
qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
return FALSE;
}
@@ -862,11 +867,7 @@ static void fd_chr_update_read_handler(CharDriverState *chr)
{
FDCharDriver *s = chr->opaque;
- if (chr->fd_in_tag) {
- io_remove_watch_poll(chr->fd_in_tag);
- chr->fd_in_tag = 0;
- }
-
+ remove_fd_in_watch(chr);
if (s->fd_in) {
chr->fd_in_tag = io_add_watch_poll(s->fd_in, fd_chr_read_poll,
fd_chr_read, chr);
@@ -877,11 +878,7 @@ static void fd_chr_close(struct CharDriverState *chr)
{
FDCharDriver *s = chr->opaque;
- if (chr->fd_in_tag) {
- io_remove_watch_poll(chr->fd_in_tag);
- chr->fd_in_tag = 0;
- }
-
+ remove_fd_in_watch(chr);
if (s->fd_in) {
g_io_channel_unref(s->fd_in);
}
@@ -1126,10 +1123,7 @@ static void pty_chr_state(CharDriverState *chr, int connected)
PtyCharDriver *s = chr->opaque;
if (!connected) {
- if (chr->fd_in_tag) {
- io_remove_watch_poll(chr->fd_in_tag);
- chr->fd_in_tag = 0;
- }
+ remove_fd_in_watch(chr);
s->connected = 0;
/* (re-)connect poll interval for idle guests: once per second.
* We check more frequently in case the guests sends data to
@@ -1155,10 +1149,7 @@ static void pty_chr_close(struct CharDriverState *chr)
PtyCharDriver *s = chr->opaque;
int fd;
- if (chr->fd_in_tag) {
- io_remove_watch_poll(chr->fd_in_tag);
- chr->fd_in_tag = 0;
- }
+ remove_fd_in_watch(chr);
fd = g_io_channel_unix_get_fd(s->fd);
g_io_channel_unref(s->fd);
close(fd);
@@ -2220,10 +2211,7 @@ static gboolean udp_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
s->bufcnt = bytes_read;
s->bufptr = s->bufcnt;
if (status != G_IO_STATUS_NORMAL) {
- if (chr->fd_in_tag) {
- io_remove_watch_poll(chr->fd_in_tag);
- chr->fd_in_tag = 0;
- }
+ remove_fd_in_watch(chr);
return FALSE;
}
@@ -2241,11 +2229,7 @@ static void udp_chr_update_read_handler(CharDriverState *chr)
{
NetCharDriver *s = chr->opaque;
- if (chr->fd_in_tag) {
- io_remove_watch_poll(chr->fd_in_tag);
- chr->fd_in_tag = 0;
- }
-
+ remove_fd_in_watch(chr);
if (s->chan) {
chr->fd_in_tag = io_add_watch_poll(s->chan, udp_chr_read_poll,
udp_chr_read, chr);
@@ -2255,10 +2239,8 @@ static void udp_chr_update_read_handler(CharDriverState *chr)
static void udp_chr_close(CharDriverState *chr)
{
NetCharDriver *s = chr->opaque;
- if (chr->fd_in_tag) {
- io_remove_watch_poll(chr->fd_in_tag);
- chr->fd_in_tag = 0;
- }
+
+ remove_fd_in_watch(chr);
if (s->chan) {
g_io_channel_unref(s->chan);
closesocket(s->fd);
@@ -2493,10 +2475,7 @@ static gboolean tcp_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque)
if (s->listen_chan) {
s->listen_tag = g_io_add_watch(s->listen_chan, G_IO_IN, tcp_chr_accept, chr);
}
- if (chr->fd_in_tag) {
- io_remove_watch_poll(chr->fd_in_tag);
- chr->fd_in_tag = 0;
- }
+ remove_fd_in_watch(chr);
g_io_channel_unref(s->chan);
s->chan = NULL;
closesocket(s->fd);
@@ -2610,10 +2589,7 @@ static void tcp_chr_close(CharDriverState *chr)
{
TCPCharDriver *s = chr->opaque;
if (s->fd >= 0) {
- if (chr->fd_in_tag) {
- io_remove_watch_poll(chr->fd_in_tag);
- chr->fd_in_tag = 0;
- }
+ remove_fd_in_watch(chr);
if (s->chan) {
g_io_channel_unref(s->chan);
}