/*
* memfile_free_blocks_in_table
*
* This is a support routine for IMFS_memfile_remove. It frees all the
* blocks in one of the indirection tables.
*/
static void memfile_free_blocks_in_table(
block_p **block_table,
int entries
)
{
int i;
block_p *b;
/*
* Perform internal consistency checks
*/
IMFS_assert( block_table );
/*
* Now go through all the slots in the table and free the memory.
*/
b = *block_table;
for ( i=0 ; i<entries ; i++ ) {
if ( b[i] ) {
memfile_free_block( b[i] );
b[i] = 0;
}
}
/*
* Now that all the blocks in the block table are free, we can
* free the block table itself.
*/
memfile_free_block( *block_table );
*block_table = 0;
}
/*
* IMFS_memfile_remove_block
*
* This routine removes the specified block from the in-memory file.
*
* NOTE: This is a support routine and is called only to remove
* the last block or set of blocks in a file. Removing a
* block from the middle of a file would be exceptionally
* dangerous and the results unpredictable.
*/
MEMFILE_STATIC void IMFS_memfile_remove_block(
IMFS_jnode_t *the_jnode,
unsigned int block
)
{
block_p *block_ptr;
block_p ptr;
block_ptr = IMFS_memfile_get_block_pointer( the_jnode, block, 0 );
if ( block_ptr ) {
ptr = *block_ptr;
*block_ptr = 0;
memfile_free_block( ptr );
}
}
/*
* IMFS_memfile_remove_block
*
* This routine removes the specified block from the in-memory file.
*
* NOTE: This is a support routine and is called only to remove
* the last block or set of blocks in a file. Removing a
* block from the middle of a file would be exceptionally
* dangerous and the results unpredictable.
*/
static void IMFS_memfile_remove_block(
IMFS_memfile_t *memfile,
unsigned int block
)
{
block_p *block_ptr;
block_p ptr;
block_ptr = IMFS_memfile_get_block_pointer( memfile, block, 0 );
if ( block_ptr ) {
ptr = *block_ptr;
*block_ptr = 0;
memfile_free_block( ptr );
}
}
/*
* IMFS_memfile_remove_block
*
* This routine removes the specified block from the in-memory file.
*
* NOTE: This is a support routine and is called only to remove
* the last block or set of blocks in a file. Removing a
* block from the middle of a file would be exceptionally
* dangerous and the results unpredictable.
*/
MEMFILE_STATIC int IMFS_memfile_remove_block(
IMFS_jnode_t *the_jnode,
unsigned int block
)
{
block_p *block_ptr;
block_p ptr;
block_ptr = IMFS_memfile_get_block_pointer( the_jnode, block, 0 );
IMFS_assert( block_ptr );
ptr = *block_ptr;
*block_ptr = 0;
memfile_free_block( ptr );
return 1;
}
