X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=src%2Fbin%2Flttng%2Futils.c;h=0e96ef0c3daf36f08b41c26749356a56705dac01;hb=e7ab49a85e4e5c5749949191bdeefa21a9aef9b1;hp=9957b378162b897a8743c8897425da51d27e0cb7;hpb=3ecec76a3cd1eb6b301d03895ab425976ba28dee;p=lttng-tools.git

diff --git a/src/bin/lttng/utils.c b/src/bin/lttng/utils.c
index 9957b3781..0e96ef0c3 100644
--- a/src/bin/lttng/utils.c
+++ b/src/bin/lttng/utils.c
@@ -15,7 +15,6 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#define _GNU_SOURCE
 #define _LGPL_SOURCE
 #include <assert.h>
 #include <stdlib.h>
@@ -26,9 +25,12 @@
 #include <signal.h>
 #include <netinet/in.h>
 #include <arpa/inet.h>
+#include <inttypes.h>
+#include <unistd.h>
 
 #include <common/error.h>
 #include <common/utils.h>
+#include <common/defaults.h>
 
 #include "conf.h"
 #include "utils.h"
@@ -39,6 +41,12 @@ static const char *str_ust = "UST";
 static const char *str_jul = "JUL";
 static const char *str_log4j = "LOG4J";
 static const char *str_python = "Python";
+static const char *str_all = "ALL";
+static const char *str_tracepoint = "Tracepoint";
+static const char *str_syscall = "Syscall";
+static const char *str_probe = "Probe";
+static const char *str_userspace_probe = "Userspace Probe";
+static const char *str_function = "Function";
 
 static
 char *_get_session_name(int quiet)
@@ -309,6 +317,37 @@ const char *get_domain_str(enum lttng_domain_type domain)
 	return str_dom;
 }
 
+const char *get_event_type_str(enum lttng_event_type type)
+{
+	const char *str_event_type;
+
+	switch (type) {
+	case LTTNG_EVENT_ALL:
+		str_event_type = str_all;
+		break;
+	case LTTNG_EVENT_TRACEPOINT:
+		str_event_type = str_tracepoint;
+		break;
+	case LTTNG_EVENT_SYSCALL:
+		str_event_type = str_syscall;
+		break;
+	case LTTNG_EVENT_PROBE:
+		str_event_type = str_probe;
+		break;
+	case LTTNG_EVENT_USERSPACE_PROBE:
+		str_event_type = str_userspace_probe;
+		break;
+	case LTTNG_EVENT_FUNCTION:
+		str_event_type = str_function;
+		break;
+	default:
+		/* Should not have an unknown event type or else define it. */
+		assert(0);
+	}
+
+	return str_event_type;
+}
+
 /*
  * Spawn a lttng relayd daemon by forking and execv.
  */
@@ -385,7 +424,7 @@ int check_relayd(void)
 	 * A successful connect means the relayd exists thus returning 0 else a
 	 * negative value means it does NOT exists.
 	 */
-	ret = connect(fd, &sin, sizeof(sin));
+	ret = connect(fd, (struct sockaddr *) &sin, sizeof(sin));
 	if (ret < 0) {
 		/* Not found. */
 		ret = 0;
@@ -416,3 +455,102 @@ int print_missing_or_multiple_domains(unsigned int sum)
 
 	return ret;
 }
+
+/*
+ * Get the discarded events and lost packet counts.
+ */
+void print_session_stats(const char *session_name)
+{
+	int count, nb_domains, domain_idx, channel_idx, session_idx;
+	struct lttng_domain *domains;
+	struct lttng_channel *channels;
+	uint64_t discarded_events_total = 0, lost_packets_total = 0;
+	struct lttng_session *sessions = NULL;
+	const struct lttng_session *selected_session = NULL;
+
+	count = lttng_list_sessions(&sessions);
+	if (count < 1) {
+		ERR("Failed to retrieve session descriptions while printing session statistics.");
+		goto end;
+	}
+
+	/* Identify the currently-selected sessions. */
+	for (session_idx = 0; session_idx < count; session_idx++) {
+		if (!strcmp(session_name, sessions[session_idx].name)) {
+			selected_session = &sessions[session_idx];
+			break;
+		}
+	}
+	if (!selected_session) {
+		ERR("Failed to retrieve session \"%s\" description while printing session statistics.", session_name);
+		goto end;
+	}
+
+	nb_domains = lttng_list_domains(session_name, &domains);
+	if (nb_domains < 0) {
+		goto end;
+	}
+	for (domain_idx = 0; domain_idx < nb_domains; domain_idx++) {
+		struct lttng_handle *handle = lttng_create_handle(session_name,
+				&domains[domain_idx]);
+
+		if (!handle) {
+			ERR("Failed to create session handle while printing session statistics.");
+			goto end;
+		}
+
+		count = lttng_list_channels(handle, &channels);
+		for (channel_idx = 0; channel_idx < count; channel_idx++) {
+			int ret;
+			uint64_t discarded_events = 0, lost_packets = 0;
+			struct lttng_channel *channel = &channels[channel_idx];
+
+			ret = lttng_channel_get_discarded_event_count(channel,
+					&discarded_events);
+			if (ret) {
+				ERR("Failed to retrieve discarded event count from channel %s",
+						channel->name);
+			}
+
+			ret = lttng_channel_get_lost_packet_count(channel,
+					&lost_packets);
+			if (ret) {
+				ERR("Failed to retrieve lost packet count from channel %s",
+						channel->name);
+			}
+
+			discarded_events_total += discarded_events;
+			lost_packets_total += lost_packets;
+		}
+		lttng_destroy_handle(handle);
+	}
+	if (discarded_events_total > 0 && !selected_session->snapshot_mode) {
+		MSG("[warning] %" PRIu64 " events discarded, please refer to "
+				"the documentation on channel configuration.",
+				discarded_events_total);
+	}
+	if (lost_packets_total > 0 && !selected_session->snapshot_mode) {
+		MSG("[warning] %" PRIu64 " packets lost, please refer to "
+				"the documentation on channel configuration.",
+				lost_packets_total);
+	}
+
+end:
+	free(sessions);
+}
+
+int show_cmd_help(const char *cmd_name, const char *help_msg)
+{
+	int ret;
+	char page_name[32];
+
+	ret = sprintf(page_name, "lttng-%s", cmd_name);
+	assert(ret > 0 && ret < 32);
+	ret = utils_show_help(1, page_name, help_msg);
+	if (ret && !help_msg) {
+		ERR("Cannot view man page `lttng-%s(1)`", cmd_name);
+		perror("exec");
+	}
+
+	return ret;
+}