/*
* Initialize the free block bitmap.
*/
static
void
initfreemap(uint32_t fsblocks)
{
uint32_t freemapbits = SFS_FREEMAPBITS(fsblocks);
uint32_t freemapblocks = SFS_FREEMAPBLOCKS(fsblocks);
uint32_t i;
if (freemapblocks > MAXFREEMAPBLOCKS) {
errx(1, "Filesystem too large -- "
"increase MAXFREEMAPBLOCKS and recompile");
}
/* mark the superblock and root inode in use */
allocblock(SFS_SUPER_BLOCK);
allocblock(SFS_ROOTDIR_INO);
/* the freemap blocks must be in use */
for (i=0; i<freemapblocks; i++) {
allocblock(SFS_FREEMAP_START + i);
}
/* all blocks in the freemap but past the volume end are "in use" */
for (i=fsblocks; i<freemapbits; i++) {
allocblock(i);
}
}
/* Create a string in the heap. */
long newstring(avm* vm, char* s)
{
objheader* obj;
heap* hp = &vm->hp;
long size = strlen(s)+1;
long offset = allocblock(vm, size);
obj = (objheader*)getobj(hp->heap, offset);
obj->type = TSTRING;
obj->size = size;
obj->offset = (long)sizeof(mblock)+offset;
strcpy(getdata(hp->heap, offset), (const char*)s);
return offset;
}
