X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=src%2Fcommon%2Fconfig%2Fsession-config.c;h=eea6c0a81d5062e7db0047252f4309d5c3ec7c5c;hb=ec2ed7da32f703bcacefca6a57865887700b780a;hp=87e9c03c8f667a65efee86dead199f77d7ee8884;hpb=f40ef1d56886bc58f5d7e147d77f818f46b66456;p=lttng-tools.git

diff --git a/src/common/config/session-config.c b/src/common/config/session-config.c
index 87e9c03c8..eea6c0a81 100644
--- a/src/common/config/session-config.c
+++ b/src/common/config/session-config.c
@@ -95,17 +95,23 @@ const char * const config_element_output_type = "output_type";
 const char * const config_element_tracefile_size = "tracefile_size";
 const char * const config_element_tracefile_count = "tracefile_count";
 const char * const config_element_live_timer_interval = "live_timer_interval";
+LTTNG_HIDDEN const char * const config_element_discarded_events = "discarded_events";
+LTTNG_HIDDEN const char * const config_element_lost_packets = "lost_packets";
 const char * const config_element_type = "type";
 const char * const config_element_buffer_type = "buffer_type";
 const char * const config_element_session = "session";
 const char * const config_element_sessions = "sessions";
-const char * const config_element_perf = "perf";
+LTTNG_HIDDEN const char * const config_element_context_perf = "perf";
+LTTNG_HIDDEN const char * const config_element_context_app = "app";
+LTTNG_HIDDEN const char * const config_element_context_app_provider_name = "provider_name";
+LTTNG_HIDDEN const char * const config_element_context_app_ctx_name = "ctx_name";
 const char * const config_element_config = "config";
 const char * const config_element_started = "started";
 const char * const config_element_snapshot_mode = "snapshot_mode";
 const char * const config_element_loglevel = "loglevel";
 const char * const config_element_loglevel_type = "loglevel_type";
 const char * const config_element_filter = "filter";
+LTTNG_HIDDEN const char * const config_element_filter_expression = "filter_expression";
 const char * const config_element_snapshot_outputs = "snapshot_outputs";
 const char * const config_element_consumer_output = "consumer_output";
 const char * const config_element_destination = "destination";
@@ -165,6 +171,11 @@ const char * const config_event_context_pthread_id = "PTHREAD_ID";
 const char * const config_event_context_hostname = "HOSTNAME";
 const char * const config_event_context_ip = "IP";
 const char * const config_event_context_perf_thread_counter = "PERF_THREAD_COUNTER";
+LTTNG_HIDDEN const char * const config_event_context_app = "APP";
+LTTNG_HIDDEN const char * const config_event_context_interruptible = "INTERRUPTIBLE";
+LTTNG_HIDDEN const char * const config_event_context_preemptible = "PREEMPTIBLE";
+LTTNG_HIDDEN const char * const config_event_context_need_reschedule = "NEED_RESCHEDULE";
+LTTNG_HIDDEN const char * const config_event_context_migratable = "MIGRATABLE";
 
 struct consumer_output {
 	int enabled;
@@ -449,7 +460,40 @@ int config_writer_open_element(struct config_writer *writer,
 	ret = xmlTextWriterStartElement(writer->writer, encoded_element_name);
 	xmlFree(encoded_element_name);
 end:
-	return ret > 0 ? 0 : ret;
+	return ret >= 0 ? 0 : ret;
+}
+
+LTTNG_HIDDEN
+int config_writer_write_attribute(struct config_writer *writer,
+		const char *name, const char *value)
+{
+	int ret;
+	xmlChar *encoded_name = NULL;
+	xmlChar *encoded_value = NULL;
+
+	if (!writer || !writer->writer || !name || !name[0]) {
+		ret = -1;
+		goto end;
+	}
+
+	encoded_name = encode_string(name);
+	if (!encoded_name) {
+		ret = -1;
+		goto end;
+	}
+
+	encoded_value = encode_string(value);
+	if (!encoded_value) {
+		ret = -1;
+		goto end;
+	}
+
+	ret = xmlTextWriterWriteAttribute(writer->writer, encoded_name,
+			encoded_value);
+end:
+	xmlFree(encoded_name);
+	xmlFree(encoded_value);
+	return ret >= 0 ? 0 : ret;
 }
 
 LTTNG_HIDDEN
@@ -464,7 +508,7 @@ int config_writer_close_element(struct config_writer *writer)
 
 	ret = xmlTextWriterEndElement(writer->writer);
 end:
-	return ret > 0 ? 0 : ret;
+	return ret >= 0 ? 0 : ret;
 }
 
 LTTNG_HIDDEN
@@ -489,7 +533,7 @@ int config_writer_write_element_unsigned_int(struct config_writer *writer,
 		encoded_element_name, "%" PRIu64, value);
 	xmlFree(encoded_element_name);
 end:
-	return ret > 0 ? 0 : ret;
+	return ret >= 0 ? 0 : ret;
 }
 
 LTTNG_HIDDEN
@@ -514,7 +558,7 @@ int config_writer_write_element_signed_int(struct config_writer *writer,
 		encoded_element_name, "%" PRIi64, value);
 	xmlFree(encoded_element_name);
 end:
-	return ret > 0 ? 0 : ret;
+	return ret >= 0 ? 0 : ret;
 }
 
 LTTNG_HIDDEN
@@ -556,7 +600,7 @@ int config_writer_write_element_string(struct config_writer *writer,
 end:
 	xmlFree(encoded_element_name);
 	xmlFree(encoded_value);
-	return ret > 0 ? 0 : ret;
+	return ret >= 0 ? 0 : ret;
 }
 
 static
@@ -946,6 +990,18 @@ int get_context_type(xmlChar *context_type)
 	} else if (!strcmp((char *) context_type,
 		config_event_context_ip)) {
 		ret = LTTNG_EVENT_CONTEXT_IP;
+	} else if (!strcmp((char *) context_type,
+		config_event_context_interruptible)) {
+		ret = LTTNG_EVENT_CONTEXT_INTERRUPTIBLE;
+	} else if (!strcmp((char *) context_type,
+		config_event_context_preemptible)) {
+		ret = LTTNG_EVENT_CONTEXT_PREEMPTIBLE;
+	} else if (!strcmp((char *) context_type,
+		config_event_context_need_reschedule)) {
+		ret = LTTNG_EVENT_CONTEXT_NEED_RESCHEDULE;
+	} else if (!strcmp((char *) context_type,
+		config_event_context_migratable)) {
+		ret = LTTNG_EVENT_CONTEXT_MIGRATABLE;
 	} else {
 		goto error;
 	}
@@ -1991,6 +2047,7 @@ int process_context_node(xmlNodePtr context_node,
 		config_element_type)) {
 		/* type */
 		xmlChar *content = xmlNodeGetContent(context_child_node);
+
 		if (!content) {
 			ret = -LTTNG_ERR_NOMEM;
 			goto end;
@@ -2004,10 +2061,11 @@ int process_context_node(xmlNodePtr context_node,
 		}
 
 		context.ctx = ret;
-	} else {
+	} else if (!strcmp((const char *) context_child_node->name,
+		config_element_context_perf)) {
+		/* perf */
 		xmlNodePtr perf_attr_node;
 
-		/* perf */
 		context.ctx = handle->domain.type == LTTNG_DOMAIN_KERNEL ?
 			LTTNG_EVENT_CONTEXT_PERF_CPU_COUNTER :
 			LTTNG_EVENT_CONTEXT_PERF_THREAD_COUNTER;
@@ -2085,9 +2143,41 @@ int process_context_node(xmlNodePtr context_node,
 				free(content);
 			}
 		}
+	} else if (!strcmp((const char *) context_child_node->name,
+		config_element_context_app)) {
+		/* application context */
+		xmlNodePtr app_ctx_node;
+
+		context.ctx = LTTNG_EVENT_CONTEXT_APP_CONTEXT;
+		for (app_ctx_node = xmlFirstElementChild(context_child_node);
+				app_ctx_node; app_ctx_node =
+				xmlNextElementSibling(app_ctx_node)) {
+			xmlChar *content;
+			char **target = strcmp(
+				(const char *) app_ctx_node->name,
+				config_element_context_app_provider_name) == 0 ?
+					&context.u.app_ctx.provider_name :
+					&context.u.app_ctx.ctx_name;
+
+			content = xmlNodeGetContent(app_ctx_node);
+			if (!content) {
+				ret = -LTTNG_ERR_NOMEM;
+				goto end;
+			}
+
+			*target = (char *) content;
+		}
+	} else {
+		/* Unrecognized context type */
+		ret = -LTTNG_ERR_LOAD_INVALID_CONFIG;
+		goto end;
 	}
 
 	ret = lttng_add_context(handle, &context, NULL, channel_name);
+	if (context.ctx == LTTNG_EVENT_CONTEXT_APP_CONTEXT) {
+		free(context.u.app_ctx.provider_name);
+		free(context.u.app_ctx.ctx_name);
+	}
 end:
 	return ret;
 }