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-rw-r--r--lib/sqfshelper/writer.c281
1 files changed, 0 insertions, 281 deletions
diff --git a/lib/sqfshelper/writer.c b/lib/sqfshelper/writer.c
deleted file mode 100644
index fa732ad..0000000
--- a/lib/sqfshelper/writer.c
+++ /dev/null
@@ -1,281 +0,0 @@
-/* SPDX-License-Identifier: GPL-3.0-or-later */
-/*
- * writer.c
- *
- * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
- */
-#include "common.h"
-
-#include <string.h>
-#include <stdlib.h>
-
-#ifdef HAVE_SYS_SYSINFO_H
-#include <sys/sysinfo.h>
-
-static size_t os_get_num_jobs(void)
-{
- int nprocs;
-
- nprocs = get_nprocs_conf();
- return nprocs < 1 ? 1 : nprocs;
-}
-
-static size_t os_get_max_ram(void)
-{
- struct sysinfo info;
-
- if (sysinfo(&info)) {
- perror("sysinfo");
- return 0;
- }
-
- return info.totalram;
-}
-#else
-static size_t os_get_num_jobs(void)
-{
- return 1;
-}
-
-static size_t os_get_max_ram(void)
-{
- (void)cfg;
- return 0;
-}
-#endif
-
-static int padd_sqfs(sqfs_file_t *file, sqfs_u64 size, size_t blocksize)
-{
- size_t padd_sz = size % blocksize;
- int status = -1;
- sqfs_u8 *buffer;
-
- if (padd_sz == 0)
- return 0;
-
- padd_sz = blocksize - padd_sz;
-
- buffer = calloc(1, padd_sz);
- if (buffer == NULL)
- goto fail_errno;
-
- if (file->write_at(file, file->get_size(file),
- buffer, padd_sz)) {
- goto fail_errno;
- }
-
- status = 0;
-out:
- free(buffer);
- return status;
-fail_errno:
- perror("padding output file to block size");
- goto out;
-}
-
-void sqfs_writer_cfg_init(sqfs_writer_cfg_t *cfg)
-{
- size_t max_ram;
-
- memset(cfg, 0, sizeof(*cfg));
-
- cfg->num_jobs = os_get_num_jobs();
- cfg->block_size = SQFS_DEFAULT_BLOCK_SIZE;
- cfg->devblksize = SQFS_DEVBLK_SIZE;
- cfg->comp_id = compressor_get_default();
-
- max_ram = os_get_max_ram();
- cfg->max_backlog = (max_ram / 2) / cfg->block_size;
-
- if (cfg->max_backlog < 1)
- cfg->max_backlog = 10 * cfg->num_jobs;
-}
-
-int sqfs_writer_init(sqfs_writer_t *sqfs, const sqfs_writer_cfg_t *wrcfg)
-{
- sqfs_compressor_config_t cfg;
- int ret;
-
- if (compressor_cfg_init_options(&cfg, wrcfg->comp_id,
- wrcfg->block_size,
- wrcfg->comp_extra)) {
- return -1;
- }
-
- sqfs->outfile = sqfs_open_file(wrcfg->filename, wrcfg->outmode);
- if (sqfs->outfile == NULL) {
- perror(wrcfg->filename);
- return -1;
- }
-
- if (fstree_init(&sqfs->fs, wrcfg->fs_defaults))
- goto fail_file;
-
- sqfs->cmp = sqfs_compressor_create(&cfg);
- if (sqfs->cmp == NULL) {
- fputs("Error creating compressor\n", stderr);
- goto fail_fs;
- }
-
- ret = sqfs_super_init(&sqfs->super, wrcfg->block_size,
- sqfs->fs.defaults.st_mtime, wrcfg->comp_id);
- if (ret) {
- sqfs_perror(wrcfg->filename, "initializing super block", ret);
- goto fail_cmp;
- }
-
- ret = sqfs_super_write(&sqfs->super, sqfs->outfile);
- if (ret) {
- sqfs_perror(wrcfg->filename, "writing super block", ret);
- goto fail_cmp;
- }
-
- ret = sqfs->cmp->write_options(sqfs->cmp, sqfs->outfile);
- if (ret < 0) {
- sqfs_perror(wrcfg->filename, "writing compressor options", ret);
- goto fail_cmp;
- }
-
- if (ret > 0)
- sqfs->super.flags |= SQFS_FLAG_COMPRESSOR_OPTIONS;
-
- sqfs->data = sqfs_data_writer_create(sqfs->super.block_size,
- sqfs->cmp, wrcfg->num_jobs,
- wrcfg->max_backlog,
- wrcfg->devblksize,
- sqfs->outfile);
- if (sqfs->data == NULL) {
- perror("creating data block processor");
- goto fail_cmp;
- }
-
- register_stat_hooks(sqfs->data, &sqfs->stats);
-
- sqfs->idtbl = sqfs_id_table_create();
- if (sqfs->idtbl == NULL) {
- sqfs_perror(wrcfg->filename, "creating ID table",
- SQFS_ERROR_ALLOC);
- goto fail_data;
- }
-
- if (!wrcfg->no_xattr) {
- sqfs->xwr = sqfs_xattr_writer_create();
-
- if (sqfs->xwr == NULL) {
- sqfs_perror(wrcfg->filename, "creating xattr writer",
- SQFS_ERROR_ALLOC);
- goto fail;
- }
- }
-
- return 0;
-fail:
- if (sqfs->xwr != NULL)
- sqfs_xattr_writer_destroy(sqfs->xwr);
- sqfs_id_table_destroy(sqfs->idtbl);
-fail_data:
- sqfs_data_writer_destroy(sqfs->data);
-fail_cmp:
- sqfs->cmp->destroy(sqfs->cmp);
-fail_fs:
- fstree_cleanup(&sqfs->fs);
-fail_file:
- sqfs->outfile->destroy(sqfs->outfile);
- return -1;
-}
-
-int sqfs_writer_finish(sqfs_writer_t *sqfs, const sqfs_writer_cfg_t *cfg)
-{
- int ret;
-
- if (!cfg->quiet)
- fputs("Waiting for remaining data blocks...\n", stdout);
-
- ret = sqfs_data_writer_finish(sqfs->data);
- if (ret) {
- sqfs_perror(cfg->filename, "finishing data blocks", ret);
- return -1;
- }
-
- if (!cfg->quiet)
- fputs("Writing inodes and directories...\n", stdout);
-
- tree_node_sort_recursive(sqfs->fs.root);
- if (fstree_gen_inode_table(&sqfs->fs))
- return -1;
-
- sqfs->super.inode_count = sqfs->fs.inode_tbl_size;
-
- if (sqfs_serialize_fstree(cfg->filename, sqfs->outfile, &sqfs->super,
- &sqfs->fs, sqfs->cmp, sqfs->idtbl)) {
- return -1;
- }
-
- if (!cfg->quiet)
- fputs("Writing fragment table...\n", stdout);
-
- ret = sqfs_data_writer_write_fragment_table(sqfs->data, &sqfs->super);
- if (ret) {
- sqfs_perror(cfg->filename, "writing fragment table", ret);
- return -1;
- }
-
- if (cfg->exportable) {
- if (!cfg->quiet)
- fputs("Writing export table...\n", stdout);
-
- if (write_export_table(cfg->filename, sqfs->outfile, &sqfs->fs,
- &sqfs->super, sqfs->cmp)) {
- return -1;
- }
- }
-
- if (!cfg->quiet)
- fputs("Writing ID table...\n", stdout);
-
- ret = sqfs_id_table_write(sqfs->idtbl, sqfs->outfile,
- &sqfs->super, sqfs->cmp);
- if (ret) {
- sqfs_perror(cfg->filename, "writing ID table", ret);
- return -1;
- }
-
- if (!cfg->quiet)
- fputs("Writing extended attributes...\n", stdout);
-
- ret = sqfs_xattr_writer_flush(sqfs->xwr, sqfs->outfile,
- &sqfs->super, sqfs->cmp);
- if (ret) {
- sqfs_perror(cfg->filename, "writing extended attributes", ret);
- return -1;
- }
-
- sqfs->super.bytes_used = sqfs->outfile->get_size(sqfs->outfile);
-
- ret = sqfs_super_write(&sqfs->super, sqfs->outfile);
- if (ret) {
- sqfs_perror(cfg->filename, "updating super block", ret);
- return -1;
- }
-
- if (padd_sqfs(sqfs->outfile, sqfs->super.bytes_used,
- cfg->devblksize)) {
- return -1;
- }
-
- if (!cfg->quiet)
- sqfs_print_statistics(&sqfs->super, &sqfs->stats);
-
- return 0;
-}
-
-void sqfs_writer_cleanup(sqfs_writer_t *sqfs)
-{
- if (sqfs->xwr != NULL)
- sqfs_xattr_writer_destroy(sqfs->xwr);
- sqfs_id_table_destroy(sqfs->idtbl);
- sqfs_data_writer_destroy(sqfs->data);
- sqfs->cmp->destroy(sqfs->cmp);
- fstree_cleanup(&sqfs->fs);
- sqfs->outfile->destroy(sqfs->outfile);
-}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-01 16:27:30 +0000