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buffered_file: reuse QEMUFile has_error field

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Instead of having two has_error fields in QEMUFile & QEMUBufferedFile,
reuse the 1st one.  Notice that the one in buffered_file is only set
after a file operation.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Juan Quintela 2011-09-21 22:32:08 +02:00
parent db448a088c
commit eff28a5c3b
1 changed files with 8 additions and 9 deletions
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17
buffered_file.c
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@ -27,7 +27,6 @@ typedef struct QEMUFileBuffered
BufferedCloseFunc *close;
void *opaque;
QEMUFile *file;
int has_error;
int freeze_output;
size_t bytes_xfer;
size_t xfer_limit;
@ -73,7 +72,7 @@ static void buffered_flush(QEMUFileBuffered *s)
{
size_t offset = 0;
if (s->has_error) {
if (qemu_file_has_error(s->file)) {
DPRINTF("flush when error, bailing\n");
return;
}
@ -93,7 +92,7 @@ static void buffered_flush(QEMUFileBuffered *s)
if (ret <= 0) {
DPRINTF("error flushing data, %zd\n", ret);
s->has_error = 1;
qemu_file_set_error(s->file);
break;
} else {
DPRINTF("flushed %zd byte(s)\n", ret);
@ -114,7 +113,7 @@ static int buffered_put_buffer(void *opaque, const uint8_t *buf, int64_t pos, in
DPRINTF("putting %d bytes at %" PRId64 "\n", size, pos);
if (s->has_error) {
if (qemu_file_has_error(s->file)) {
DPRINTF("flush when error, bailing\n");
return -EINVAL;
}
@ -139,7 +138,7 @@ static int buffered_put_buffer(void *opaque, const uint8_t *buf, int64_t pos, in
if (ret <= 0) {
DPRINTF("error putting\n");
s->has_error = 1;
qemu_file_set_error(s->file);
offset = -EINVAL;
break;
}
@ -173,7 +172,7 @@ static int buffered_close(void *opaque)
DPRINTF("closing\n");
while (!s->has_error && s->buffer_size) {
while (!qemu_file_has_error(s->file) && s->buffer_size) {
buffered_flush(s);
if (s->freeze_output)
s->wait_for_unfreeze(s->opaque);
@ -199,7 +198,7 @@ static int buffered_rate_limit(void *opaque)
{
QEMUFileBuffered *s = opaque;
if (s->has_error) {
if (qemu_file_has_error(s->file)) {
return -1;
}
if (s->freeze_output)
@ -214,7 +213,7 @@ static int buffered_rate_limit(void *opaque)
static int64_t buffered_set_rate_limit(void *opaque, int64_t new_rate)
{
QEMUFileBuffered *s = opaque;
if (s->has_error)
if (qemu_file_has_error(s->file))
goto out;
if (new_rate > SIZE_MAX) {
@ -238,7 +237,7 @@ static void buffered_rate_tick(void *opaque)
{
QEMUFileBuffered *s = opaque;
if (s->has_error) {
if (qemu_file_has_error(s->file)) {
buffered_close(s);
return;
}