Re-organize sources

[babeltrace.git] / src / plugins / ctf / fs-src / metadata.c

diff --git a/src/plugins/ctf/fs-src/metadata.c b/src/plugins/ctf/fs-src/metadata.c
new file mode 100644 (file)
index 0000000..3074461
--- /dev/null
+++ b/src/plugins/ctf/fs-src/metadata.c
@@ -0,0 +1,159 @@
+/*
+ * Copyright 2016 - Philippe Proulx <pproulx@efficios.com>
+ * Copyright 2010-2011 - EfficiOS Inc. and Linux Foundation
+ *
+ * Some functions are based on older functions written by Mathieu Desnoyers.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include "common/assert.h"
+#include <glib.h>
+#include "compat/uuid.h"
+#include "compat/memstream.h"
+#include <babeltrace2/babeltrace.h>
+
+#include "fs.h"
+#include "file.h"
+#include "metadata.h"
+#include "../common/metadata/decoder.h"
+
+#define BT_LOG_TAG "PLUGIN-CTF-FS-METADATA-SRC"
+#include "logging.h"
+
+BT_HIDDEN
+FILE *ctf_fs_metadata_open_file(const char *trace_path)
+{
+       GString *metadata_path;
+       FILE *fp = NULL;
+
+       metadata_path = g_string_new(trace_path);
+       if (!metadata_path) {
+               goto end;
+       }
+
+       g_string_append(metadata_path, G_DIR_SEPARATOR_S CTF_FS_METADATA_FILENAME);
+       fp = fopen(metadata_path->str, "rb");
+       g_string_free(metadata_path, TRUE);
+end:
+       return fp;
+}
+
+static struct ctf_fs_file *get_file(const char *trace_path)
+{
+       struct ctf_fs_file *file = ctf_fs_file_create();
+
+       if (!file) {
+               goto error;
+       }
+
+       g_string_append(file->path, trace_path);
+       g_string_append(file->path, G_DIR_SEPARATOR_S CTF_FS_METADATA_FILENAME);
+
+       if (ctf_fs_file_open(file, "rb")) {
+               goto error;
+       }
+
+       goto end;
+
+error:
+       if (file) {
+               ctf_fs_file_destroy(file);
+               file = NULL;
+       }
+
+end:
+       return file;
+}
+
+BT_HIDDEN
+int ctf_fs_metadata_set_trace_class(
+               bt_self_component_source *self_comp,
+               struct ctf_fs_trace *ctf_fs_trace,
+               struct ctf_fs_metadata_config *config)
+{
+       int ret = 0;
+       struct ctf_fs_file *file = NULL;
+       struct ctf_metadata_decoder_config decoder_config = {
+               .clock_class_offset_s = config ? config->clock_class_offset_s : 0,
+               .clock_class_offset_ns = config ? config->clock_class_offset_ns : 0,
+       };
+
+       file = get_file(ctf_fs_trace->path->str);
+       if (!file) {
+               BT_LOGE("Cannot create metadata file object");
+               ret = -1;
+               goto end;
+       }
+
+       ctf_fs_trace->metadata->decoder = ctf_metadata_decoder_create(self_comp,
+               config ? &decoder_config : NULL);
+       if (!ctf_fs_trace->metadata->decoder) {
+               BT_LOGE("Cannot create metadata decoder object");
+               ret = -1;
+               goto end;
+       }
+
+       ret = ctf_metadata_decoder_decode(ctf_fs_trace->metadata->decoder,
+               file->fp);
+       if (ret) {
+               BT_LOGE("Cannot decode metadata file");
+               goto end;
+       }
+
+       ctf_fs_trace->metadata->trace_class =
+               ctf_metadata_decoder_get_ir_trace_class(
+                       ctf_fs_trace->metadata->decoder);
+       BT_ASSERT(!self_comp || ctf_fs_trace->metadata->trace_class);
+       ctf_fs_trace->metadata->tc =
+               ctf_metadata_decoder_borrow_ctf_trace_class(
+                       ctf_fs_trace->metadata->decoder);
+       BT_ASSERT(ctf_fs_trace->metadata->tc);
+
+end:
+       ctf_fs_file_destroy(file);
+       return ret;
+}
+
+BT_HIDDEN
+int ctf_fs_metadata_init(struct ctf_fs_metadata *metadata)
+{
+       /* Nothing to initialize for the moment. */
+       return 0;
+}
+
+BT_HIDDEN
+void ctf_fs_metadata_fini(struct ctf_fs_metadata *metadata)
+{
+       if (metadata->text) {
+               free(metadata->text);
+       }
+
+       if (metadata->trace_class) {
+               BT_TRACE_CLASS_PUT_REF_AND_RESET(metadata->trace_class);
+       }
+
+       if (metadata->decoder) {
+               ctf_metadata_decoder_destroy(metadata->decoder);
+       }
+}