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New API calls isoburn_ropt_set_data_cache(), isoburn_ropt_get_data_cache()

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This commit is contained in:
Thomas Schmitt
2012-03-11 16:20:30 +00:00
parent 8f48b854d8
commit b42293cd05
7 changed files with 279 additions and 70 deletions
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55
libisoburn/isoburn.c
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@@ -776,6 +776,8 @@ int isoburn_ropt_new(struct isoburn_read_opts **new_o, int flag)
"Cannot allocate memory for read options", 0, "FATAL", 0);
return(-1);
}
o->cache_tiles= Libisoburn_default_cache_tileS;
o->cache_tile_blocks= Libisoburn_default_tile_blockS;
o->norock= 0;
o->nojoliet= 0;
o->noiso1999= 1;
@@ -812,6 +814,59 @@ int isoburn_ropt_destroy(struct isoburn_read_opts **o, int flag)
}
int isoburn_ropt_set_data_cache(struct isoburn_read_opts *o,
int cache_tiles, int tile_blocks, int flag)
{
int i;
char msg[80];
if(cache_tiles < 1) {
isoburn_msgs_submit(NULL, 0x00060000,
"Requested number of data cache tiles is too small (< 1)",
0, "SORRY", 0);
return(0);
}
if(((double) cache_tiles) * ((double) tile_blocks)
> (double) Libisoburn_cache_max_sizE) {
sprintf(msg, "Requested size of data cache exceeds limit of %.f blocks",
(double) Libisoburn_cache_max_sizE);
isoburn_msgs_submit(NULL, 0x00060000, msg, 0, "SORRY", 0);
return(0);
}
for(i = 1; i <= Libisoburn_cache_max_sizE; i = i << 1)
if(i == tile_blocks)
break;
if(i > Libisoburn_cache_max_sizE) {
isoburn_msgs_submit(NULL, 0x00060000,
"Requested number of blocks per data cache tiles is not a power of 2",
0, "SORRY", 0);
return(0);
}
if(o != NULL) {
o->cache_tiles= cache_tiles;
o->cache_tile_blocks= tile_blocks;
}
return(1);
}
int isoburn_ropt_get_data_cache(struct isoburn_read_opts *o,
int *cache_tiles, int *tile_blocks,
int *set_flag, int flag)
{
if((flag & 1) || o == NULL) {
*cache_tiles= Libisoburn_default_cache_tileS;
*tile_blocks= Libisoburn_default_tile_blockS;
*set_flag= 0;
return(1);
}
*cache_tiles= o->cache_tiles;
*tile_blocks= o->cache_tile_blocks;
*set_flag= 0;
return(1);
}
int isoburn_ropt_set_extensions(struct isoburn_read_opts *o, int ext)
{
o->norock= !!(ext&1);