#include "health-sessiond.h"
#include "thread.h"
+#include "kernel.h"
+#include <common/kernel-ctl/kernel-ctl.h>
+
#include <urcu.h>
#include <urcu/list.h>
#include <urcu/rculfhash.h>
PERROR("close kernel consumer channel monitoring pipe");
}
}
+
end:
free(handle);
}
return ret;
}
+static int handle_event_notification_pipe(int event_source_fd,
+ enum lttng_domain_type domain,
+ uint32_t revents,
+ struct notification_thread_state *state)
+{
+ int ret = 0;
+
+ if (revents & (LPOLLERR | LPOLLHUP | LPOLLRDHUP)) {
+ ret = handle_notification_thread_remove_tracer_event_source_no_result(
+ state, event_source_fd);
+ if (ret) {
+ ERR("[notification-thread] Failed to remove event notification pipe from poll set: fd = %d",
+ event_source_fd);
+ }
+ goto end;
+ }
+
+ ret = handle_notification_thread_event_notification(
+ state, event_source_fd, domain);
+ if (ret) {
+ ERR("[notification-thread] Event notification handling error occurred for fd: %d",
+ event_source_fd);
+ ret = -1;
+ goto end;
+ }
+end:
+ return ret;
+}
+
+/*
+ * Return the event source domain type via parameter.
+ */
+static bool fd_is_event_notification_source(const struct notification_thread_state *state,
+ int fd,
+ enum lttng_domain_type *domain)
+{
+ struct notification_event_tracer_event_source_element *source_element;
+
+ assert(domain);
+
+ cds_list_for_each_entry(source_element,
+ &state->tracer_event_sources_list, node) {
+ if (source_element->fd != fd) {
+ continue;
+ }
+
+ *domain = source_element->domain;
+ return true;
+ }
+
+ return false;
+}
+
/*
* This thread services notification channel clients and commands received
* from various lttng-sessiond components over a command queue.
int ret;
struct notification_thread_handle *handle = data;
struct notification_thread_state state;
+ enum lttng_domain_type domain;
DBG("[notification-thread] Started notification thread");
if (ret) {
goto error;
}
+ } else if (fd_is_event_notification_source(&state, fd, &domain)) {
+ ret = handle_event_notification_pipe(fd, domain, revents, &state);
+ if (ret) {
+ goto error;
+ }
} else {
/* Activity on a client's socket. */
if (revents & (LPOLLERR | LPOLLHUP | LPOLLRDHUP)) {