[PATCH v1 0/3] libtracefs: Add APIs for user_events to libtracefs

[Beau Belgrave <beaub@linux.microsoft.com>]

New APIs added:
struct tracefs_user_event_group *tracefs_user_event_group_create(void);

void tracefs_user_event_group_close(struct tracefs_user_event_group *group);

int tracefs_user_event_delete(const char *name);

struct tracefs_user_event *
tracefs_user_event_register(struct tracefs_user_event_group *group,
                            const char *name, enum tracefs_uevent_flags flags,
                            struct tracefs_uevent_item *items);

bool tracefs_user_event_test(struct tracefs_user_event *event);

int tracefs_user_event_write(struct tracefs_user_event *event,
                             struct tracefs_uevent_item *items);

Documentation updates in this series describes the various APIs and the reason
for a group.

Items are described with a struct to better ensure contracts for things like
custom structs or static length strings. Items are allowed to be mixed/different
than what they were when registered. This allows callers the ability to describe
events verbosely, but write out via packed structs in their own code if needed.

Beau Belgrave (3):
  libtracefs: Add user_events to libtracefs sources
  libtracefs: Add documentation and sample code for user_events
  libtracefs: Add unit tests for user_events

 Documentation/libtracefs-userevents.txt | 258 +++++++++++
 Makefile                                |   8 +
 include/tracefs-local.h                 |  24 ++
 include/tracefs.h                       |  60 +++
 samples/Makefile                        |   4 +
 src/Makefile                            |   4 +
 src/tracefs-userevents.c                | 545 ++++++++++++++++++++++++
 utest/tracefs-utest.c                   | 233 ++++++++++
 8 files changed, 1136 insertions(+)
 create mode 100644 Documentation/libtracefs-userevents.txt
 create mode 100644 src/tracefs-userevents.c


base-commit: e579ba38ff6bc07cd2278faf9d3ac08c15d4e9e8
-- 
2.17.1