configure: re-enable '-Wunused-parameter'
[babeltrace.git] / src / plugins / ctf / fs-src / metadata.cpp
CommitLineData
e98a2d6e 1/*
0235b0db 2 * SPDX-License-Identifier: MIT
e98a2d6e 3 *
0235b0db
MJ
4 * Copyright 2016 Philippe Proulx <pproulx@efficios.com>
5 * Copyright 2010-2011 EfficiOS Inc. and Linux Foundation
e98a2d6e
PP
6 */
7
4c65a157 8#define BT_COMP_LOG_SELF_COMP self_comp
4164020e
SM
9#define BT_LOG_OUTPUT_LEVEL log_level
10#define BT_LOG_TAG "PLUGIN/SRC.CTF.FS/META"
d9c39b0a 11#include "logging/comp-logging.h"
98903a3e 12
e98a2d6e
PP
13#include <stdio.h>
14#include <stdint.h>
15#include <stdlib.h>
578e048b 16#include "common/assert.h"
e98a2d6e 17#include <glib.h>
6162e6b7 18#include "common/uuid.h"
578e048b 19#include "compat/memstream.h"
3fadfbc0 20#include <babeltrace2/babeltrace.h>
e98a2d6e 21
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22#include "fs.hpp"
23#include "file.hpp"
24#include "metadata.hpp"
25#include "../common/metadata/decoder.hpp"
e98a2d6e 26
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27FILE *ctf_fs_metadata_open_file(const char *trace_path, bt_logging_level log_level,
28 bt_self_component_class *comp_class)
33f93973 29{
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30 GString *metadata_path;
31 FILE *fp = NULL;
33f93973 32
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33 metadata_path = g_string_new(trace_path);
34 if (!metadata_path) {
35 goto end;
36 }
33f93973 37
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38 g_string_append(metadata_path, G_DIR_SEPARATOR_S CTF_FS_METADATA_FILENAME);
39 fp = fopen(metadata_path->str, "rb");
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40 if (!fp) {
41 BT_COMP_CLASS_LOGE_APPEND_CAUSE_ERRNO(comp_class, "Failed to open metadata file",
42 ": path=\"%s\"", metadata_path->str);
43 }
44
4164020e 45 g_string_free(metadata_path, TRUE);
0ac40cd4 46
4dd8c9bf 47end:
4164020e 48 return fp;
33f93973
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49}
50
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51static struct ctf_fs_file *get_file(const char *trace_path, bt_logging_level log_level,
52 bt_self_component *self_comp)
e98a2d6e 53{
4164020e 54 struct ctf_fs_file *file = ctf_fs_file_create(log_level, self_comp);
e98a2d6e 55
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56 if (!file) {
57 goto error;
58 }
e98a2d6e 59
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60 g_string_append(file->path, trace_path);
61 g_string_append(file->path, G_DIR_SEPARATOR_S CTF_FS_METADATA_FILENAME);
e98a2d6e 62
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63 if (ctf_fs_file_open(file, "rb")) {
64 goto error;
65 }
e98a2d6e 66
4164020e 67 goto end;
e98a2d6e
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68
69error:
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70 if (file) {
71 ctf_fs_file_destroy(file);
72 file = NULL;
73 }
e98a2d6e
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74
75end:
4164020e 76 return file;
e98a2d6e
PP
77}
78
4164020e
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79int ctf_fs_metadata_set_trace_class(bt_self_component *self_comp, struct ctf_fs_trace *ctf_fs_trace,
80 struct ctf_fs_metadata_config *config)
e98a2d6e 81{
4164020e
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82 int ret = 0;
83 struct ctf_fs_file *file = NULL;
84 bt_logging_level log_level = ctf_fs_trace->log_level;
85
86 ctf_metadata_decoder_config decoder_config {};
87 decoder_config.log_level = ctf_fs_trace->log_level, decoder_config.self_comp = self_comp,
88 decoder_config.clock_class_offset_s = config ? config->clock_class_offset_s : 0,
89 decoder_config.clock_class_offset_ns = config ? config->clock_class_offset_ns : 0,
90 decoder_config.force_clock_class_origin_unix_epoch =
91 config ? config->force_clock_class_origin_unix_epoch : false,
92 decoder_config.create_trace_class = true,
93
94 file = get_file(ctf_fs_trace->path->str, log_level, self_comp);
95 if (!file) {
96 BT_COMP_LOGE("Cannot create metadata file object.");
97 ret = -1;
98 goto end;
99 }
100
101 ctf_fs_trace->metadata->decoder = ctf_metadata_decoder_create(&decoder_config);
102 if (!ctf_fs_trace->metadata->decoder) {
103 BT_COMP_LOGE("Cannot create metadata decoder object.");
104 ret = -1;
105 goto end;
106 }
107
108 ret = ctf_metadata_decoder_append_content(ctf_fs_trace->metadata->decoder, file->fp);
109 if (ret) {
110 BT_COMP_LOGE("Cannot update metadata decoder's content.");
111 goto end;
112 }
113
114 ctf_fs_trace->metadata->trace_class =
115 ctf_metadata_decoder_get_ir_trace_class(ctf_fs_trace->metadata->decoder);
116 BT_ASSERT(!self_comp || ctf_fs_trace->metadata->trace_class);
117 ctf_fs_trace->metadata->tc =
118 ctf_metadata_decoder_borrow_ctf_trace_class(ctf_fs_trace->metadata->decoder);
119 BT_ASSERT(ctf_fs_trace->metadata->tc);
4f1f88a6 120
e98a2d6e 121end:
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122 ctf_fs_file_destroy(file);
123 return ret;
e98a2d6e
PP
124}
125
ecd7492f 126int ctf_fs_metadata_init(struct ctf_fs_metadata *)
e98a2d6e 127{
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128 /* Nothing to initialize for the moment. */
129 return 0;
e98a2d6e
PP
130}
131
413bc2c4 132void ctf_fs_metadata_fini(struct ctf_fs_metadata *metadata)
e98a2d6e 133{
4164020e 134 free(metadata->text);
e98a2d6e 135
4164020e
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136 if (metadata->trace_class) {
137 BT_TRACE_CLASS_PUT_REF_AND_RESET(metadata->trace_class);
138 }
44c440bc 139
4164020e
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140 if (metadata->decoder) {
141 ctf_metadata_decoder_destroy(metadata->decoder);
142 }
e98a2d6e 143}
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