From c410093711c2e01db9ace97e5ed1b35e4b612d7d Mon Sep 17 00:00:00 2001
From: Thomas Schmitt <scdbackup@gmx.net>
Date: Thu, 22 May 2008 19:27:13 +0000
Subject: [PATCH] Removed outdated code branch

---
 libisoburn/data_source.c    | 152 ++----------------------------------
 xorriso/xorriso_timestamp.h |   2 +-
 2 files changed, 9 insertions(+), 145 deletions(-)

diff --git a/libisoburn/data_source.c b/libisoburn/data_source.c
index 13e4beba..0c202315 100644
--- a/libisoburn/data_source.c
+++ b/libisoburn/data_source.c
@@ -27,24 +27,24 @@
 #include "isoburn.h"
 
 
-/* Powers of 2 only ! Less than 16 makes not much sense. */
+/* Cached reading of image tree data */
+/* Multi tile:  32 * 64 kB */
+
+/* The size of a single tile.
+   Powers of 2 only ! Less than 16 makes not much sense.
+*/
 #define Libisoburn_tile_blockS 32
 
-/* Undef to get to older single tile version
+/* The number of tiles in the cache
 */
 #define Libisoburn_cache_tileS 32
 
+
 /* Debugging only: This reports cache loads on stderr.
 #define Libisoburn_read_cache_reporT 1
 */
 
 
-/* Cached reading of image tree data */
-
-#ifdef Libisoburn_cache_tileS
-
-/* Multi tile:  32 * 64 kB */
-
 struct isoburn_cache_tile {
  char cache_data[Libisoburn_tile_blockS * 2048];
  uint32_t cache_lba;
@@ -234,139 +234,3 @@ static int ds_inc_age(struct isoburn_cached_drive *icd, int idx, int flag)
 }
 
 
-#else /* Libisoburn_cache_tileS */
-
-
-/* Single tile 128 kB */
-
-
-struct isoburn_cached_drive {
- struct burn_drive *drive;
-
- char cache_data[Libisoburn_tile_blockS * 2048];
- uint32_t cache_lba;
- uint32_t last_error_lba;
- uint32_t last_aligned_error_lba;
- int cache_hits;
-};
-
-
-/* Debugging only: This reports cache loads on stderr.
-#define Libisoburn_read_cache_reporT 1
-*/
-
-int 
-ds_read_block(IsoDataSource *src, uint32_t lba, uint8_t *buffer)
-{
- int ret;
- struct burn_drive *d;
- off_t count;
- uint32_t aligned_lba;
- char msg[80];
-
- struct isoburn_cached_drive *icd;
-
- if(src == NULL || buffer == NULL)
-   return -1;
-
- icd = (struct isoburn_cached_drive *) src->data;
- d = (struct burn_drive*) icd->drive;
-
- aligned_lba= lba & ~(Libisoburn_tile_blockS - 1);
- if(aligned_lba == icd->cache_lba && icd->cache_lba != 0xffffffff) {
-   (icd->cache_hits)++;
-   memcpy(buffer, icd->cache_data + (lba - aligned_lba) * 2048, 2048);
-   count= 2048;
-   return 1;
- } 
-
- icd->cache_lba= 0xffffffff; /* invalidate cache */
- 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_tile_blockS * 2048, &count, 0);
- }
- if (ret <= 0 ) {
-   icd->last_aligned_error_lba = aligned_lba;
-
-   /* Read-ahead failure ? Try to read 2048 directly. */
-   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;
- }
-
-#ifdef Libisoburn_read_cache_reporT
- fprintf(stderr, "After %3d hits, new load from %8x , count= %d\n",
-         icd->cache_hits, aligned_lba, (int) count);
-#endif
-
- icd->cache_lba= aligned_lba;
- icd->cache_hits= 1;
- memcpy(buffer, icd->cache_data + (lba - aligned_lba) * 2048, 2048);
- count= 2048;
-
- return 1;
-}
-
-
-static int
-ds_open(IsoDataSource *src)
-{
- /* nothing to do, device is always grabbed */
- return 1;
-}
-
-static int
-ds_close(IsoDataSource *src)
-{
- /* nothing to do, device is always grabbed */
- return 1;
-}
-
-static void 
-ds_free_data(IsoDataSource *src)
-{
- /* nothing to do */;
- if(src->data != NULL)
-   free(src->data);
- src->data= NULL;
-}
-
-IsoDataSource *
-isoburn_data_source_new(struct burn_drive *d)
-{
- IsoDataSource *ret;
- struct isoburn_cached_drive *icd= NULL;
-
- if (d==NULL)
-   return NULL;
- ret = malloc(sizeof(IsoDataSource));
- icd = calloc(1,sizeof(struct isoburn_cached_drive));
- if (ret == NULL || icd == NULL)
-   return NULL;
- ret->refcount = 1;
- ret->read_block = ds_read_block;
- ret->open = ds_open;
- ret->close = ds_close;
- ret->free_data = ds_free_data;
- ret->data = icd;
- icd->drive = d;
- icd->cache_lba = 0xffffffff;
- icd->cache_hits = 0;
- icd->last_error_lba = 0xffffffff;
- icd->last_aligned_error_lba = 0xffffffff;
- return ret;
-}
-
-#endif /* ! Libisoburn_cache_tileS */
-
diff --git a/xorriso/xorriso_timestamp.h b/xorriso/xorriso_timestamp.h
index 52004233..2d119a55 100644
--- a/xorriso/xorriso_timestamp.h
+++ b/xorriso/xorriso_timestamp.h
@@ -1 +1 @@
-#define Xorriso_timestamP "2008.05.22.192618"
+#define Xorriso_timestamP "2008.05.22.192737"