libburnia/libisofs
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Better handling of cancelation. Just join thread if image already consumed.

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This commit is contained in:
Vreixo Formoso 2008-02-04 02:02:00 +01:00
parent 8930de4026
commit 3510f56966
1 changed files with 25 additions and 10 deletions
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17
libisofs/ecma119.c
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@ -1095,15 +1095,21 @@ static off_t bs_get_size(struct burn_source *bs)
static void bs_free_data(struct burn_source *bs) static void bs_free_data(struct burn_source *bs)
{ {
int st;
Ecma119Image *target = (Ecma119Image*)bs->data; Ecma119Image *target = (Ecma119Image*)bs->data;
st = iso_ring_buffer_get_status(bs, NULL, NULL);
/* was read already finished (i.e, canceled)? */
if (st < 4) {
/* forces writer to stop if it is still running */ /* forces writer to stop if it is still running */
iso_ring_buffer_reader_close(target->buffer, 0); iso_ring_buffer_reader_close(target->buffer, 0);
/* wait until writer thread finishes */ /* wait until writer thread finishes */
pthread_join(target->wthread, NULL); pthread_join(target->wthread, NULL);
iso_msg_debug(target->image->id, "Writer thread joined"); iso_msg_debug(target->image->id, "Writer thread joined");
}
iso_msg_debug(target->image->id, iso_msg_debug(target->image->id,
"Ring buffer was %d times full and %d times empty", "Ring buffer was %d times full and %d times empty",
iso_ring_buffer_get_times_full(target->buffer), iso_ring_buffer_get_times_full(target->buffer),
@ -1116,12 +1122,21 @@ static void bs_free_data(struct burn_source *bs)
static static
int bs_cancel(struct burn_source *bs) int bs_cancel(struct burn_source *bs)
{ {
int st;
size_t cap, free;
Ecma119Image *target = (Ecma119Image*)bs->data; Ecma119Image *target = (Ecma119Image*)bs->data;
st = iso_ring_buffer_get_status(bs, &cap, &free);
if (free == cap && (st == 2 || st == 3)) {
/* image was already consumed */
iso_ring_buffer_reader_close(target->buffer, 0);
} else {
iso_msg_debug(target->image->id, "Reader thread being cancelled"); iso_msg_debug(target->image->id, "Reader thread being cancelled");
/* forces writer to stop if it is still running */ /* forces writer to stop if it is still running */
iso_ring_buffer_reader_close(target->buffer, ISO_CANCELED); iso_ring_buffer_reader_close(target->buffer, ISO_CANCELED);
}
/* wait until writer thread finishes */ /* wait until writer thread finishes */
pthread_join(target->wthread, NULL); pthread_join(target->wthread, NULL);