X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Fnotification-thread.cpp;h=320e639d0468bf917af7e3327c868c211e10a48d;hb=1524f98c04431d04e50796f83a9dd29184b3a8a4;hp=867fc7c044c679d658c331c3c94420bd8b1bf2e2;hpb=4bd69c5f1161cd065f487da0f4c1aa03a73c47e4;p=lttng-tools.git

diff --git a/src/bin/lttng-sessiond/notification-thread.cpp b/src/bin/lttng-sessiond/notification-thread.cpp
index 867fc7c04..320e639d0 100644
--- a/src/bin/lttng-sessiond/notification-thread.cpp
+++ b/src/bin/lttng-sessiond/notification-thread.cpp
@@ -7,30 +7,31 @@
 
 #define _LGPL_SOURCE
 #include <lttng/trigger/trigger.h>
-#include <lttng/notification/channel-internal.h>
-#include <lttng/notification/notification-internal.h>
-#include <lttng/condition/condition-internal.h>
-#include <lttng/condition/buffer-usage-internal.h>
-#include <common/error.h>
-#include <common/config/session-config.h>
-#include <common/defaults.h>
-#include <common/utils.h>
-#include <common/align.h>
-#include <common/time.h>
+#include <lttng/notification/channel-internal.hpp>
+#include <lttng/notification/notification-internal.hpp>
+#include <lttng/condition/condition-internal.hpp>
+#include <lttng/condition/buffer-usage-internal.hpp>
+#include <common/error.hpp>
+#include <common/config/session-config.hpp>
+#include <common/defaults.hpp>
+#include <common/utils.hpp>
+#include <common/align.hpp>
+#include <common/time.hpp>
 #include <sys/stat.h>
+#include <sys/eventfd.h>
 #include <time.h>
 #include <signal.h>
 
-#include "notification-thread.h"
-#include "notification-thread-events.h"
-#include "notification-thread-commands.h"
-#include "lttng-sessiond.h"
-#include "health-sessiond.h"
-#include "thread.h"
-#include "testpoint.h"
+#include "notification-thread.hpp"
+#include "notification-thread-events.hpp"
+#include "notification-thread-commands.hpp"
+#include "lttng-sessiond.hpp"
+#include "health-sessiond.hpp"
+#include "thread.hpp"
+#include "testpoint.hpp"
 
-#include "kernel.h"
-#include <common/kernel-ctl/kernel-ctl.h>
+#include "kernel.hpp"
+#include <common/kernel-ctl/kernel-ctl.hpp>
 
 #include <urcu.h>
 #include <urcu/list.h>
@@ -59,8 +60,11 @@ void notification_thread_handle_destroy(
 	pthread_mutex_destroy(&handle->cmd_queue.lock);
 	sem_destroy(&handle->ready);
 
-	if (handle->cmd_queue.event_pipe) {
-		lttng_pipe_destroy(handle->cmd_queue.event_pipe);
+	if (handle->cmd_queue.event_fd >= 0) {
+		ret = close(handle->cmd_queue.event_fd);
+		if (ret < 0) {
+			PERROR("Failed to close notification command queue event fd");
+		}
 	}
 	if (handle->channel_monitoring_pipes.ust32_consumer >= 0) {
 		ret = close(handle->channel_monitoring_pipes.ust32_consumer);
@@ -92,23 +96,22 @@ struct notification_thread_handle *notification_thread_handle_create(
 {
 	int ret;
 	struct notification_thread_handle *handle;
-	struct lttng_pipe *event_pipe = NULL;
+	int event_fd = -1;
 
-	handle = (notification_thread_handle *) zmalloc(sizeof(*handle));
+	handle = zmalloc<notification_thread_handle>();
 	if (!handle) {
 		goto end;
 	}
 
 	sem_init(&handle->ready, 0, 0);
 
-	event_pipe = lttng_pipe_open(FD_CLOEXEC);
-	if (!event_pipe) {
-		ERR("event_pipe creation");
+	event_fd =  eventfd(0, EFD_CLOEXEC | EFD_SEMAPHORE);
+	if (event_fd < 0) {
+		PERROR("event_fd creation");
 		goto error;
 	}
 
-	handle->cmd_queue.event_pipe = event_pipe;
-	event_pipe = NULL;
+	handle->cmd_queue.event_fd = event_fd;
 
 	CDS_INIT_LIST_HEAD(&handle->cmd_queue.list);
 	ret = pthread_mutex_init(&handle->cmd_queue.lock, NULL);
@@ -150,7 +153,6 @@ struct notification_thread_handle *notification_thread_handle_create(
 end:
 	return handle;
 error:
-	lttng_pipe_destroy(event_pipe);
 	notification_thread_handle_destroy(handle);
 	return NULL;
 }
@@ -162,7 +164,7 @@ char *get_notification_channel_sock_path(void)
 	bool is_root = !getuid();
 	char *sock_path;
 
-	sock_path = (char *) zmalloc(LTTNG_PATH_MAX);
+	sock_path = calloc<char>(LTTNG_PATH_MAX);
 	if (!sock_path) {
 		goto error;
 	}
@@ -290,28 +292,24 @@ int init_poll_set(struct lttng_poll_event *poll_set,
 		goto end;
 	}
 
-	ret = lttng_poll_add(poll_set, notification_channel_socket,
-			LPOLLIN | LPOLLERR | LPOLLHUP | LPOLLRDHUP);
+	ret = lttng_poll_add(poll_set, notification_channel_socket, LPOLLIN | LPOLLRDHUP);
 	if (ret < 0) {
 		ERR("Failed to add notification channel socket to pollset");
 		goto error;
 	}
-	ret = lttng_poll_add(poll_set, lttng_pipe_get_readfd(handle->cmd_queue.event_pipe),
-			LPOLLIN | LPOLLERR);
+	ret = lttng_poll_add(poll_set, handle->cmd_queue.event_fd, LPOLLIN);
 	if (ret < 0) {
 		ERR("Failed to add notification command queue event fd to pollset");
 		goto error;
 	}
 	ret = lttng_poll_add(poll_set,
-			handle->channel_monitoring_pipes.ust32_consumer,
-			LPOLLIN | LPOLLERR);
+			handle->channel_monitoring_pipes.ust32_consumer, LPOLLIN);
 	if (ret < 0) {
 		ERR("Failed to add ust-32 channel monitoring pipe fd to pollset");
 		goto error;
 	}
 	ret = lttng_poll_add(poll_set,
-			handle->channel_monitoring_pipes.ust64_consumer,
-			LPOLLIN | LPOLLERR);
+			handle->channel_monitoring_pipes.ust64_consumer, LPOLLIN);
 	if (ret < 0) {
 		ERR("Failed to add ust-64 channel monitoring pipe fd to pollset");
 		goto error;
@@ -320,8 +318,7 @@ int init_poll_set(struct lttng_poll_event *poll_set,
 		goto end;
 	}
 	ret = lttng_poll_add(poll_set,
-			handle->channel_monitoring_pipes.kernel_consumer,
-			LPOLLIN | LPOLLERR);
+			handle->channel_monitoring_pipes.kernel_consumer, LPOLLIN);
 	if (ret < 0) {
 		ERR("Failed to add kernel channel monitoring pipe fd to pollset");
 		goto error;
@@ -711,7 +708,7 @@ void *thread_notification(void *data)
 					ERR("Unexpected poll events %u for notification socket %i", revents, fd);
 					goto error;
 				}
-			} else if (fd == lttng_pipe_get_readfd(handle->cmd_queue.event_pipe)) {
+			} else if (fd == handle->cmd_queue.event_fd) {
 				ret = handle_notification_thread_command(handle,
 						&state);
 				if (ret < 0) {