X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=src%2Flib%2Flttng-ctl%2Flttng-ctl.c;h=48d7f8890c9b0184f1e08299a7122b9211fde689;hb=a03e83c35e9b1534952a57d64bab6beb728a990e;hp=6bd3f80ec3f8f3a77941d30c67936b98c05efed3;hpb=7955af2dca5ddbcce6fa2afa6be862318ba46b44;p=lttng-tools.git

diff --git a/src/lib/lttng-ctl/lttng-ctl.c b/src/lib/lttng-ctl/lttng-ctl.c
index 6bd3f80ec..48d7f8890 100644
--- a/src/lib/lttng-ctl/lttng-ctl.c
+++ b/src/lib/lttng-ctl/lttng-ctl.c
@@ -1659,6 +1659,26 @@ int lttng_create_session(const char *name, const char *url)
 	return ret;
 }
 
+/*
+ * Clear the session
+ */
+int lttng_clear_session(const char *session_name)
+{
+	struct lttcomm_session_msg lsm;
+
+	if (session_name == NULL) {
+		return -LTTNG_ERR_INVALID;
+	}
+
+	memset(&lsm, 0, sizeof(lsm));
+
+	lsm.cmd_type = LTTNG_CLEAR_SESSION;
+	lttng_ctl_copy_string(lsm.session.name, session_name,
+			sizeof(lsm.session.name));
+
+	return lttng_ctl_ask_sessiond(&lsm, NULL);
+}
+
 /*
  * Destroy session using name.
  * Returns size of returned session payload data or a negative error code.
@@ -2073,6 +2093,8 @@ void lttng_channel_set_default_attr(struct lttng_domain *domain,
 		if (extended) {
 			extended->monitor_timer_interval =
 					DEFAULT_KERNEL_CHANNEL_MONITOR_TIMER;
+			extended->blocking_timeout =
+					DEFAULT_KERNEL_CHANNEL_BLOCKING_TIMEOUT;
 		}
 		break;
 	case LTTNG_DOMAIN_UST:
@@ -2088,6 +2110,8 @@ void lttng_channel_set_default_attr(struct lttng_domain *domain,
 			if (extended) {
 				extended->monitor_timer_interval =
 						DEFAULT_UST_UID_CHANNEL_MONITOR_TIMER;
+				extended->blocking_timeout =
+						DEFAULT_UST_UID_CHANNEL_BLOCKING_TIMEOUT;
 			}
 			break;
 		case LTTNG_BUFFER_PER_PID:
@@ -2102,6 +2126,8 @@ void lttng_channel_set_default_attr(struct lttng_domain *domain,
 			if (extended) {
 				extended->monitor_timer_interval =
 						DEFAULT_UST_PID_CHANNEL_MONITOR_TIMER;
+				extended->blocking_timeout =
+						DEFAULT_UST_PID_CHANNEL_BLOCKING_TIMEOUT;
 			}
 			break;
 		}
@@ -2203,6 +2229,61 @@ end:
 	return ret;
 }
 
+int lttng_channel_get_blocking_timeout(struct lttng_channel *chan,
+		int64_t *blocking_timeout)
+{
+	int ret = 0;
+
+	if (!chan || !blocking_timeout) {
+		ret = -LTTNG_ERR_INVALID;
+		goto end;
+	}
+
+	if (!chan->attr.extended.ptr) {
+		ret = -LTTNG_ERR_INVALID;
+		goto end;
+	}
+
+	*blocking_timeout = ((struct lttng_channel_extended *)
+			chan->attr.extended.ptr)->blocking_timeout;
+end:
+	return ret;
+}
+
+int lttng_channel_set_blocking_timeout(struct lttng_channel *chan,
+		int64_t blocking_timeout)
+{
+	int ret = 0;
+	int64_t msec_timeout;
+
+	if (!chan || !chan->attr.extended.ptr) {
+		ret = -LTTNG_ERR_INVALID;
+		goto end;
+	}
+
+	if (blocking_timeout < 0 && blocking_timeout != -1) {
+		ret = -LTTNG_ERR_INVALID;
+		goto end;
+	}
+
+	/*
+	 * LTTng-ust's use of poll() to implement this timeout mechanism forces
+	 * us to accept a narrower range of values (msecs expressed as a signed
+	 * 32-bit integer).
+	 */
+	msec_timeout = blocking_timeout / 1000;
+	if (msec_timeout != (int32_t) msec_timeout) {
+		ret = -LTTNG_ERR_INVALID;
+		goto end;
+	}
+
+	((struct lttng_channel_extended *)
+			chan->attr.extended.ptr)->blocking_timeout =
+			blocking_timeout;
+end:
+	return ret;
+}
+
 /*
  * Check if session daemon is alive.
  *
@@ -2497,7 +2578,7 @@ int lttng_list_tracker_pids(struct lttng_handle *handle,
 	int enabled = 1;
 	struct lttcomm_session_msg lsm;
 	size_t nr_pids;
-	int32_t *pids;
+	int32_t *pids = NULL;
 
 	if (handle == NULL) {
 		return -LTTNG_ERR_INVALID;
@@ -2514,6 +2595,9 @@ int lttng_list_tracker_pids(struct lttng_handle *handle,
 		return ret;
 	}
 	nr_pids = ret / sizeof(int32_t);
+	if (nr_pids > 0 && !pids) {
+		return -LTTNG_ERR_UNK;
+	}
 	if (nr_pids == 1 && pids[0] == -1) {
 		free(pids);
 		pids = NULL;
@@ -2607,7 +2691,7 @@ int lttng_register_trigger(struct lttng_trigger *trigger)
 	}
 
 	if (!lttng_trigger_validate(trigger)) {
-		ret = -LTTNG_ERR_INVALID;
+		ret = -LTTNG_ERR_INVALID_TRIGGER;
 		goto end;
 	}