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Implemented burn_source.cancel() in a binary backwards compatible way

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This commit is contained in:
Thomas Schmitt
2007-12-24 14:21:23 +00:00
parent 32a6bd1f82
commit d9e056c3ac
7 changed files with 88 additions and 237 deletions
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92
libburn/write.c
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@ -43,6 +43,7 @@
#include "write.h"
#include "options.h"
#include "structure.h"
#include "source.h"
#include "libdax_msgs.h"
extern struct libdax_msgs *libdax_messenger;
@ -836,6 +837,8 @@ int burn_write_track(struct burn_write_opts *o, struct burn_session *s,
/* ts A61103 */
ret = 1;
ex:;
if (d->cancel)
burn_source_cancel(t->source);
if (o->write_type == BURN_WRITE_TAO) {
/* ts A71002 */
@ -1273,6 +1276,8 @@ int burn_dvd_write_track(struct burn_write_opts *o,
}
ret = 1;
ex:;
if (d->cancel)
burn_source_cancel(t->source);
if (!is_flushed)
d->sync_cache(d); /* burn_write_flush() was not called */
return ret;
@ -1693,7 +1698,11 @@ int burn_stdio_read_source(struct burn_source *source, char *buf, int bufsize,
int count= 0, todo;
for(todo = bufsize; todo > 0; todo -= count) {
count = source->read(source,
if(source->read!=NULL)
count = source->read(source,
(unsigned char *) (buf + (bufsize - todo)), todo);
else
count = source->read_xt(source,
(unsigned char *) (buf + (bufsize - todo)), todo);
if (count <= 0)
break;
@ -1718,16 +1727,6 @@ int burn_stdio_write(int fd, char *buf, int count, struct burn_drive *d,
}
/* ts A70911
If defined this makes stdio run on top of sector_data() rather than
own stdio read and write functions. The MMC function pointers d->write()
and d->sync_cache() get replaced by stdio substitutes.
*/
#define Libburn_stdio_track_by_sector_datA 1
#ifdef Libburn_stdio_track_by_sector_datA
/* ts A70910 : to be used as burn_drive.write(), emulating mmc_write() */
int burn_stdio_mmc_write(struct burn_drive *d, int start, struct buffer *buf)
{
@ -1849,9 +1848,6 @@ int burn_stdio_slowdown(struct burn_drive *d, struct timeval *prev_time,
}
#endif /* Libburn_stdio_track_by_sector_datA */
/* ts A70904 */
int burn_stdio_write_track(struct burn_write_opts *o, struct burn_session *s,
int tnum, int flag)
@ -1860,14 +1856,9 @@ int burn_stdio_write_track(struct burn_write_opts *o, struct burn_session *s,
struct burn_track *t = s->track[tnum];
struct burn_drive *d = o->drive;
char buf[16*2048];
#ifdef Libburn_stdio_track_by_sector_datA
int i, prev_sync_sector = 0;
struct buffer *out = d->buffer;
struct timeval prev_time;
#else
int eof_seen = 0;
off_t t_size, w_count;
#endif
bufsize = sizeof(buf);
fd = d->stdio_fd;
@ -1876,8 +1867,6 @@ int burn_stdio_write_track(struct burn_write_opts *o, struct burn_session *s,
burn_disc_init_track_status(o, s, tnum, sectors);
open_ended = burn_track_is_open_ended(t);
#ifdef Libburn_stdio_track_by_sector_datA
/* attach stdio emulators for mmc_*() functions */
if (o->simulate)
d->write = burn_stdio_mmc_dummy_write;
@ -1889,7 +1878,7 @@ int burn_stdio_write_track(struct burn_write_opts *o, struct burn_session *s,
for (i = 0; open_ended || i < sectors; i++) {
/* transact a (CD sized) sector */
if (!sector_data(o, t, 0))
return 0;
{ret= 0; goto ex;}
if (open_ended) {
d->progress.sectors = sectors = d->progress.sector;
if (burn_track_is_data_done(t))
@ -1912,60 +1901,11 @@ int burn_stdio_write_track(struct burn_write_opts *o, struct burn_session *s,
out->bytes = o->obs;
}
ret = burn_write_flush(o, t);
#else /* Libburn_stdio_track_by_sector_datA */
t_size = t->source->get_size(t->source);
/* >>> write t->offset zeros */;
for(w_count = 0; w_count < t_size || open_ended; w_count += ret) {
if (t_size - w_count < bufsize && ! open_ended)
/* >>> what about final sector padding ? */
bufsize = t_size - w_count;
if (eof_seen)
ret = 0;
else
ret = burn_stdio_read_source(t->source, buf,
bufsize, o, 0);
if (ret < 0)
return ret;
if (ret == 0 && open_ended)
break;
if (ret < bufsize && !open_ended) {
memset(buf + ret, 0, bufsize - ret);
eof_seen = 1;
ret = bufsize;
}
t->sourcecount += ret;
if (!o->simulate)
ret = burn_stdio_write(fd, buf, ret, d, 0);
if (ret <= 0)
return ret;
d->progress.sector = (w_count + (off_t) ret) / (off_t) 2048;
if (open_ended)
d->progress.sectors = d->progress.sector;
t->writecount += ret;
t->written_sectors = t->writecount / 2048;
/* Flush to physical device after each full MB */
if (d->progress.sector - prev_sync_sector >= 512) {
prev_sync_sector = d->progress.sector;
if (!o->simulate)
burn_stdio_sync_cache(fd, d, 1);
}
}
/* >>> write t->tail zeros */;
#endif
return 1;
ret= 1;
ex:;
if (d->cancel)
burn_source_cancel(t->source);
return ret;
}