static
int ctf_text_close_trace(struct bt_trace_descriptor *descriptor);
+static
+struct bt_trace_descriptor *ctf_metadata_open_trace(const char *path, int flags,
+ void (*packet_seek)(struct bt_stream_pos *pos, size_t index,
+ int whence), FILE *metadata_fp);
+static
+int ctf_metadata_close_trace(struct bt_trace_descriptor *descriptor);
+
static
rw_dispatch write_dispatch_table[] = {
[ CTF_TYPE_INTEGER ] = ctf_text_integer_write,
.close_trace = ctf_text_close_trace,
};
+static
+struct bt_format ctf_metadata_format = {
+ .open_trace = ctf_metadata_open_trace,
+ .close_trace = ctf_metadata_close_trace,
+};
+
static GQuark Q_STREAM_PACKET_CONTEXT_TIMESTAMP_BEGIN,
Q_STREAM_PACKET_CONTEXT_TIMESTAMP_END,
Q_STREAM_PACKET_CONTEXT_EVENTS_DISCARDED,
return 0;
}
+static
+int ctf_metadata_trace_pre_handler(struct bt_stream_pos *ppos,
+ struct bt_trace_descriptor *td)
+{
+ struct ctf_text_stream_pos *pos =
+ container_of(ppos, struct ctf_text_stream_pos, parent);
+ struct ctf_trace *trace;
+
+ trace = container_of(td, struct ctf_trace, parent);
+ if (!trace->metadata_string)
+ return -EINVAL;
+ if (trace->metadata_packetized) {
+ fprintf(pos->fp, "/* CTF %u.%u */\n",
+ BT_CTF_MAJOR, BT_CTF_MINOR);
+ }
+ fprintf(pos->fp, "%s", trace->metadata_string);
+ return 0;
+}
+
+static
+struct bt_trace_descriptor *ctf_metadata_open_trace(const char *path, int flags,
+ void (*packet_seek)(struct bt_stream_pos *pos, size_t index,
+ int whence), FILE *metadata_fp)
+{
+ struct ctf_text_stream_pos *pos;
+ FILE *fp;
+
+ pos = g_new0(struct ctf_text_stream_pos, 1);
+
+ pos->last_real_timestamp = -1ULL;
+ pos->last_cycles_timestamp = -1ULL;
+ switch (flags & O_ACCMODE) {
+ case O_RDWR:
+ if (!path)
+ fp = stdout;
+ else
+ fp = fopen(path, "w");
+ if (!fp)
+ goto error;
+ pos->fp = fp;
+ pos->parent.pre_trace_cb = ctf_metadata_trace_pre_handler;
+ pos->print_names = 0;
+ break;
+ case O_RDONLY:
+ default:
+ fprintf(stderr, "[error] Incorrect open flags.\n");
+ goto error;
+ }
+
+ return &pos->trace_descriptor;
+error:
+ g_free(pos);
+ return NULL;
+}
+
+static
+int ctf_metadata_close_trace(struct bt_trace_descriptor *td)
+{
+ int ret;
+ struct ctf_text_stream_pos *pos =
+ container_of(td, struct ctf_text_stream_pos, trace_descriptor);
+ if (pos->fp != stdout) {
+ ret = fclose(pos->fp);
+ if (ret) {
+ perror("Error on fclose");
+ return -1;
+ }
+ }
+ g_free(pos);
+ return 0;
+}
+
static
void __attribute__((constructor)) ctf_text_init(void)
{
ctf_text_format.name = g_quark_from_static_string("text");
ret = bt_register_format(&ctf_text_format);
assert(!ret);
+ ctf_metadata_format.name = g_quark_from_static_string("ctf-metadata");
+ ret = bt_register_format(&ctf_metadata_format);
+ assert(!ret);
}
static
void __attribute__((destructor)) ctf_text_exit(void)
{
+ bt_unregister_format(&ctf_metadata_format);
bt_unregister_format(&ctf_text_format);
}