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/* SPDX-License-Identifier: LGPL-3.0-or-later */
/*
* fragtbl.c
*
* Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
*/
#define SQFS_BUILDING_DLL
#include "internal.h"
int sqfs_block_processor_write_fragment_table(sqfs_block_processor_t *proc,
sqfs_super_t *super)
{
uint64_t start;
size_t size;
int ret;
if (proc->num_fragments == 0) {
super->fragment_entry_count = 0;
super->fragment_table_start = 0xFFFFFFFFFFFFFFFFUL;
super->flags &= ~SQFS_FLAG_ALWAYS_FRAGMENTS;
super->flags |= SQFS_FLAG_NO_FRAGMENTS;
return 0;
}
size = sizeof(proc->fragments[0]) * proc->num_fragments;
ret = sqfs_write_table(proc->file, proc->cmp,
proc->fragments, size, &start);
if (ret)
return ret;
super->flags &= ~SQFS_FLAG_NO_FRAGMENTS;
super->flags |= SQFS_FLAG_ALWAYS_FRAGMENTS;
super->fragment_entry_count = proc->num_fragments;
super->fragment_table_start = start;
return 0;
}
int grow_fragment_table(sqfs_block_processor_t *proc, size_t index)
{
size_t newsz;
void *new;
if (index < proc->max_fragments)
return 0;
do {
newsz = proc->max_fragments ? proc->max_fragments * 2 : 16;
} while (index >= newsz);
new = realloc(proc->fragments, sizeof(proc->fragments[0]) * newsz);
if (new == NULL)
return SQFS_ERROR_ALLOC;
proc->max_fragments = newsz;
proc->fragments = new;
return 0;
}
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