X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fbin%2Flttng%2Fcommands%2Fenable_events.c;h=1a53448c647ebd8469871b916258726649a78c5b;hp=cdd137cc9193d3aed0efdfee037546b97c958402;hb=025faf73cdb6942ebf437dc4c4f6631f0134b128;hpb=18eace3ba4aeaa6b869c8ad9ec1273381b4cbdee diff --git a/src/bin/lttng/commands/enable_events.c b/src/bin/lttng/commands/enable_events.c index cdd137cc9..1a53448c6 100644 --- a/src/bin/lttng/commands/enable_events.c +++ b/src/bin/lttng/commands/enable_events.c @@ -301,7 +301,6 @@ int loglevel_str_to_value(const char *inputstr) static int enable_events(char *session_name) { int err, ret = CMD_SUCCESS, warn = 0; - unsigned int event_enabled = 0; char *event_name, *channel_name = NULL; struct lttng_event ev; struct lttng_domain dom; @@ -367,62 +366,60 @@ static int enable_events(char *session_name) } } - /* Reset flag before enabling a new event. */ - event_enabled = 0; - - ret = lttng_enable_event(handle, &ev, channel_name); - if (ret < 0) { - switch (-ret) { - case LTTNG_ERR_KERN_EVENT_EXIST: - WARN("Kernel events already enabled (channel %s, session %s)", - channel_name, session_name); - break; - default: - ERR("Events: %s (channel %s, session %s)", - lttng_strerror(ret), channel_name, session_name); - break; + if (!opt_filter) { + ret = lttng_enable_event(handle, &ev, channel_name); + if (ret < 0) { + switch (-ret) { + case LTTNG_ERR_KERN_EVENT_EXIST: + WARN("Kernel events already enabled (channel %s, session %s)", + channel_name, session_name); + break; + default: + ERR("Events: %s (channel %s, session %s)", + lttng_strerror(ret), channel_name, session_name); + break; + } + goto end; } - goto end; - } - event_enabled = 1; - switch (opt_event_type) { - case LTTNG_EVENT_TRACEPOINT: - if (opt_loglevel) { - MSG("All %s tracepoints are enabled in channel %s for loglevel %s", - opt_kernel ? "kernel" : "UST", channel_name, - opt_loglevel); - } else { - MSG("All %s tracepoints are enabled in channel %s", - opt_kernel ? "kernel" : "UST", channel_name); + switch (opt_event_type) { + case LTTNG_EVENT_TRACEPOINT: + if (opt_loglevel) { + MSG("All %s tracepoints are enabled in channel %s for loglevel %s", + opt_kernel ? "kernel" : "UST", channel_name, + opt_loglevel); + } else { + MSG("All %s tracepoints are enabled in channel %s", + opt_kernel ? "kernel" : "UST", channel_name); + } + break; + case LTTNG_EVENT_SYSCALL: + if (opt_kernel) { + MSG("All kernel system calls are enabled in channel %s", + channel_name); + } + break; + case LTTNG_EVENT_ALL: + if (opt_loglevel) { + MSG("All %s events are enabled in channel %s for loglevel %s", + opt_kernel ? "kernel" : "UST", channel_name, + opt_loglevel); + } else { + MSG("All %s events are enabled in channel %s", + opt_kernel ? "kernel" : "UST", channel_name); + } + break; + default: + /* + * We should not be here since lttng_enable_event should have + * failed on the event type. + */ + goto error; } - break; - case LTTNG_EVENT_SYSCALL: - if (opt_kernel) { - MSG("All kernel system calls are enabled in channel %s", - channel_name); - } - break; - case LTTNG_EVENT_ALL: - if (opt_loglevel) { - MSG("All %s events are enabled in channel %s for loglevel %s", - opt_kernel ? "kernel" : "UST", channel_name, - opt_loglevel); - } else { - MSG("All %s events are enabled in channel %s", - opt_kernel ? "kernel" : "UST", channel_name); - } - break; - default: - /* - * We should not be here since lttng_enable_event should have - * failed on the event type. - */ - goto error; } - if (opt_filter && event_enabled) { - ret = lttng_set_event_filter(handle, &ev, channel_name, + if (opt_filter) { + ret = lttng_enable_event_with_filter(handle, &ev, channel_name, opt_filter); if (ret < 0) { fprintf(stderr, "Ret filter: %d\n", ret); @@ -437,19 +434,6 @@ static int enable_events(char *session_name) ERR("%s", lttng_strerror(ret)); default: ERR("Setting filter: '%s'", opt_filter); - /* - * The event was successfully enabled before so when - * failing to set a filter, disable the event. This has - * been discussed in bug #343 on why we do that. - */ - err = lttng_disable_event(handle, ev.name, channel_name); - if (err < 0) { - ERR("Disabling all events after filter error: %s", - lttng_strerror(err)); - } else { - WARN("All events of channel %s have been disabled due " - "to a filter error", channel_name); - } break; } goto error; @@ -564,30 +548,29 @@ static int enable_events(char *session_name) goto error; } - /* Reset flag before enabling a new event. */ - event_enabled = 0; - - ret = lttng_enable_event(handle, &ev, channel_name); - if (ret < 0) { - /* Turn ret to positive value to handle the positive error code */ - switch (-ret) { - case LTTNG_ERR_KERN_EVENT_EXIST: - WARN("Kernel event %s already enabled (channel %s, session %s)", - event_name, channel_name, session_name); - break; - default: - ERR("Event %s: %s (channel %s, session %s)", event_name, - lttng_strerror(ret), channel_name, session_name); - break; + if (!opt_filter) { + ret = lttng_enable_event(handle, &ev, channel_name); + if (ret < 0) { + /* Turn ret to positive value to handle the positive error code */ + switch (-ret) { + case LTTNG_ERR_KERN_EVENT_EXIST: + WARN("Kernel event %s already enabled (channel %s, session %s)", + event_name, channel_name, session_name); + break; + default: + ERR("Event %s: %s (channel %s, session %s)", event_name, + lttng_strerror(ret), channel_name, session_name); + break; + } + warn = 1; + } else { + MSG("%s event %s created in channel %s", + opt_kernel ? "kernel": "UST", event_name, channel_name); } - warn = 1; - } else { - MSG("%s event %s created in channel %s", - opt_kernel ? "kernel": "UST", event_name, channel_name); - event_enabled = 1; } - if (opt_filter && event_enabled) { - ret = lttng_set_event_filter(handle, &ev, channel_name, + + if (opt_filter) { + ret = lttng_enable_event_with_filter(handle, &ev, channel_name, opt_filter); if (ret < 0) { switch (-ret) { @@ -602,19 +585,6 @@ static int enable_events(char *session_name) default: ERR("Setting filter for event %s: '%s'", ev.name, opt_filter); - /* - * The event was successfully enabled before so when - * failing to set a filter, disable the event. This has - * been discussed in bug #343 on why we do that. - */ - err = lttng_disable_event(handle, ev.name, channel_name); - if (err < 0) { - ERR("Disabling event %s after filter error: %s", - ev.name, lttng_strerror(err)); - } else { - WARN("Event %s of channel %s has been disabled due " - "to a filter error", ev.name, channel_name); - } break; } goto error;