Fixes #918
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
int kernel_track_pid(struct ltt_kernel_session *session, int pid)
{
int kernel_track_pid(struct ltt_kernel_session *session, int pid)
{
DBG("Kernel track PID %d for session id %" PRIu64 ".",
pid, session->id);
DBG("Kernel track PID %d for session id %" PRIu64 ".",
pid, session->id);
- return kernctl_track_pid(session->fd, pid);
+ ret = kernctl_track_pid(session->fd, pid);
+ if (!ret) {
+ return LTTNG_OK;
+ }
+ switch (errno) {
+ case EINVAL:
+ return LTTNG_ERR_INVALID;
+ case ENOMEM:
+ return LTTNG_ERR_NOMEM;
+ case EEXIST:
+ return LTTNG_ERR_PID_TRACKED;
+ default:
+ return LTTNG_ERR_UNK;
+ }
}
int kernel_untrack_pid(struct ltt_kernel_session *session, int pid)
{
}
int kernel_untrack_pid(struct ltt_kernel_session *session, int pid)
{
DBG("Kernel untrack PID %d for session id %" PRIu64 ".",
pid, session->id);
DBG("Kernel untrack PID %d for session id %" PRIu64 ".",
pid, session->id);
- return kernctl_untrack_pid(session->fd, pid);
+ ret = kernctl_untrack_pid(session->fd, pid);
+ if (!ret) {
+ return LTTNG_OK;
+ }
+ switch (errno) {
+ case EINVAL:
+ return LTTNG_ERR_INVALID;
+ case ENOMEM:
+ return LTTNG_ERR_NOMEM;
+ case ENOENT:
+ return LTTNG_ERR_PID_NOT_TRACKED;
+ default:
+ return LTTNG_ERR_UNK;
+ }
}
ssize_t kernel_list_tracker_pids(struct ltt_kernel_session *session,
}
ssize_t kernel_list_tracker_pids(struct ltt_kernel_session *session,