libtracefs 1.6
Changes since libtracefs 1.5.0
New API:
- Can now read the trace_pipe_raw files and send data to file descriptors and
pipes. The following APIs were added:
tracefs_cpu_open() - Open a per CPU raw trace file
tracefs_cpu_close() - Close the pre CPU raw trace file
tracefs_cpu_read_size() - Get the buffer size to use
tracefs_cpu_read() - Read from a pre CPU trace file
tracefs_cpu_buffered_read() - Read buffered (piped) from the file
tracefs_cpu_write() - Send the per CPU buffer to a file descriptor
tracefs_cpu_stop() - Stop the reader that is blocked on the file
tracefs_cpu_flush() - Flush out the rest of the file
tracefs_cpu_flush_write() - Flush out the rest of the file to another file.
tracefs_cpu_alloc_fd() - Open a descriptor from an existing open buffer file
tracefs_cpu_free_fd() - Close just the descriptor.
tracefs_cpu_pipe() - Send the per CPU file to a pipe.
- Added tracefs_event_is_enabled() - Returns the state of an event (or events)
- tracefs_instance_get_buffer_size() - Return the current buffer size
- tracefs_instance_set_buffer_size() - Set the buffer size.
- tracefs_tracing_dir_is_mounted() - Check if tracefs is already mounted
(and mount if asked)
- Added tracefs_follow_event() - Call a callback when an event is hit
in tracefs_iterate_raw_events()
- Added tracefs_follow_missed_events() - Call a callback when missed events
are hit in tracefs_iterate_raw_events()
- Created a bunch of unit tests for the above.
- Updated the man pages to reflect the updates.
Fixes:
- Added "buckets" field to tracefs_sql()
- Allow filters to use "COMM" keyword
- Build fixes.
libtracefs: version 1.6
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
1 file changed
