trace_id = bt_context_add_trace(ctx,
node->fts_accpath, format_str,
- packet_seek);
+ packet_seek, NULL, NULL);
if (trace_id < 0) {
fprintf(stderr, "[error] [Context] opening trace \"%s\" from %s "
"for reading.\n", node->fts_accpath, path);
*/
#include <unistd.h>
+#include <babeltrace/format.h>
/* struct bt_context is opaque to the user */
struct bt_context;
* and a "whence" parameter (either SEEK_CUR: seek to next packet, or
* SEEK_SET: seek to packet at packet index).
*
+ * If "path" is NULL, stream_list is used instread as a list of streams
+ * to open for the trace.
+
+ * The metadata parameter acts as a metadata override when not NULL.
+ *
* Return: the trace handle id (>= 0) on success, a negative
* value on error.
*/
int bt_context_add_trace(struct bt_context *ctx, const char *path,
const char *format,
void (*packet_seek)(struct stream_pos *pos,
- size_t index, int whence));
+ size_t index, int whence),
+ struct mmap_stream_list *stream_list,
+ FILE *metadata);
/*
* bt_context_remove_trace: Remove a trace from the context.
int bt_context_add_trace(struct bt_context *ctx, const char *path,
const char *format_name,
void (*packet_seek)(struct stream_pos *pos, size_t index,
- int whence))
+ int whence),
+ struct mmap_stream_list *stream_list,
+ FILE *metadata)
{
struct trace_descriptor *td;
struct format *fmt;
ret = -1;
goto end;
}
- td = fmt->open_trace(path, O_RDONLY, packet_seek, NULL);
- if (!td) {
- fprintf(stderr, "[error] [Context] Cannot open_trace of the format %s .\n\n",
- path);
- ret = -1;
- goto end;
+ if (path) {
+ td = fmt->open_trace(path, O_RDONLY, packet_seek, NULL);
+ if (!td) {
+ fprintf(stderr, "[error] [Context] Cannot open_trace of the format %s .\n\n",
+ path);
+ ret = -1;
+ goto end;
+ }
+ } else {
+ td = fmt->open_mmap_trace(stream_list, packet_seek, metadata);
+ if (!td) {
+ fprintf(stderr, "[error] [Context] Cannot open_trace of the format %s .\n\n",
+ path);
+ ret = -1;
+ goto end;
+ }
}
/* Create an handle for the trace */