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Uses the tar format to collect multiple output files. It can be inspected using the regular UNIX tools, but a later commit will add a specialized tool to perform common tasks. The tar implementation is enough to fulfill the current needs without adding a dependency. There's also a small test mostly to ensure scaffolding is there in case we need to expand the implementation. Acked-by: Kenneth Graunke <kenneth@whitecape.org> Acked-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29146>
70 lines
1.3 KiB
C
70 lines
1.3 KiB
C
/*
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* Copyright 2023 Intel Corporation
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* SPDX-License-Identifier: MIT
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*/
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#ifndef MDA_TAR_H
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#define MDA_TAR_H
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/* Subset of the tar archive format. The writer produces a fully valid tar file,
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* and the reader is capable to read files procuded by that writer.
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*/
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#include <assert.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <time.h>
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#include "slice.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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enum {
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RECORD_SIZE = 512,
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};
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typedef long archive_pos;
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typedef struct tar_writer {
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FILE *file;
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archive_pos header_pos;
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char header[RECORD_SIZE];
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bool error;
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const char *prefix;
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time_t timestamp;
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} tar_writer;
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void tar_writer_init(tar_writer *tw, FILE *f);
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void tar_writer_start_file(tar_writer *tw, const char *filename);
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void tar_writer_finish_file(tar_writer *tw);
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void tar_writer_file_from_bytes(tar_writer *tw, const char *filename,
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const char *contents, unsigned contents_size);
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typedef struct {
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slice contents;
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bool error;
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archive_pos pos;
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} tar_reader;
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void tar_reader_init_from_bytes(tar_reader *tr, const char *contents, unsigned contents_size);
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typedef struct {
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slice prefix;
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slice name;
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slice contents;
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time_t mtime;
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} tar_reader_entry;
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bool tar_reader_next(tar_reader *tr, tar_reader_entry *entry);
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#ifdef __cplusplus
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}
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#endif
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#endif /* MDA_TAR_H */
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