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Stuffed memory leak with read cache. Economized on error retries.

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This commit is contained in:
Thomas Schmitt 2008-02-07 21:15:09 +00:00
parent ee9ffbefe0
commit 1b18c619f0
2 changed files with 25 additions and 5 deletions
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28
libisoburn/trunk/libisoburn/data_source.c
View File

@ -38,6 +38,8 @@ struct isoburn_cached_drive {
char cache_data[Libisoburn_cache_blockS * 2048];
uint32_t cache_lba;
uint32_t last_error_lba;
uint32_t last_aligned_error_lba;
int cache_hits;
};
@ -56,6 +58,7 @@ ds_read_block(IsoDataSource *src, uint32_t lba, uint8_t *buffer)
struct burn_drive *d;
off_t count;
uint32_t aligned_lba;
char msg[80];
struct isoburn_cached_drive *icd;
@ -74,15 +77,27 @@ ds_read_block(IsoDataSource *src, uint32_t lba, uint8_t *buffer)
}
icd->cache_lba= 0xffffffff; /* invalidate cache */
ret = burn_read_data(d, (off_t) aligned_lba * (off_t) 2048,
(char *) icd->cache_data,
Libisoburn_cache_blockS * 2048, &count, 0);
if(icd->last_aligned_error_lba == aligned_lba) {
ret = 0;
} else {
ret = burn_read_data(d, (off_t) aligned_lba * (off_t) 2048,
(char *) icd->cache_data,
Libisoburn_cache_blockS * 2048, &count, 0);
}
if (ret <= 0 ) {
icd->last_aligned_error_lba = aligned_lba;
/* Read-ahead failure ? Try to read 2048 directly. */
ret = burn_read_data(d, (off_t) lba * (off_t) 2048, (char *) buffer,
if(icd->last_error_lba == lba)
ret = 0;
else
ret = burn_read_data(d, (off_t) lba * (off_t) 2048, (char *) buffer,
2048, &count, 0);
if (ret > 0)
return 1;
icd->last_error_lba = lba;
sprintf(msg, "ds_read_block(%lu) returns -1", (unsigned long) lba);
burn_msgs_submit(0x00060000, msg, 0, "DEBUG", NULL);
return -1;
}
@ -142,6 +157,9 @@ static void
ds_free_data(IsoDataSource *src)
{
/* nothing to do */;
if(src->data != NULL)
free(src->data);
src->data= NULL;
}
IsoDataSource *
@ -165,6 +183,8 @@ isoburn_data_source_new(struct burn_drive *d)
icd->drive = d;
icd->cache_lba = 0xffffffff;
icd->cache_hits = 0;
icd->last_error_lba = 0xffffffff;
icd->last_aligned_error_lba = 0xffffffff;
return ret;
}

2
libisoburn/trunk/xorriso/xorriso_timestamp.h
View File

@ -1 +1 @@
#define Xorriso_timestamP "2008.02.07.154947"
#define Xorriso_timestamP "2008.02.07.211424"