From: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Date: Wed, 1 Mar 2017 03:04:26 +0000 (-0500)
Subject: Add deserialization of condition class
X-Git-Url: http://git.efficios.com/?p=lttng-tools.git;a=commitdiff_plain;h=a365f2d0cf10fad063176af841e359f517efa5a4

Add deserialization of condition class

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
---

diff --git a/include/lttng/condition/condition-internal.h b/include/lttng/condition/condition-internal.h
index 62df6c1e8..1c8f100e9 100644
--- a/include/lttng/condition/condition-internal.h
+++ b/include/lttng/condition/condition-internal.h
@@ -35,12 +35,17 @@ struct lttng_condition {
 };
 
 struct lttng_condition_comm {
+	/* enum lttng_condition_type */
 	int8_t condition_type;
 };
 
 LTTNG_HIDDEN
 bool lttng_condition_validate(struct lttng_condition *condition);
 
+LTTNG_HIDDEN
+ssize_t lttng_condition_create_from_buffer(const char *buf,
+		struct lttng_condition **condition);
+
 LTTNG_HIDDEN
 ssize_t lttng_condition_serialize(struct lttng_condition *action, char *buf);
 
diff --git a/src/lib/lttng-ctl/condition.c b/src/lib/lttng-ctl/condition.c
index b3091576a..9f9795d55 100644
--- a/src/lib/lttng-ctl/condition.c
+++ b/src/lib/lttng-ctl/condition.c
@@ -16,6 +16,7 @@
  */
 
 #include <lttng/condition/condition-internal.h>
+#include <lttng/condition/buffer-usage-internal.h>
 #include <common/macros.h>
 #include <stdbool.h>
 #include <assert.h>
@@ -84,3 +85,45 @@ ssize_t lttng_condition_serialize(struct lttng_condition *condition, char *buf)
 end:
 	return ret;
 }
+
+LTTNG_HIDDEN
+ssize_t lttng_condition_create_from_buffer(const char *buf,
+		struct lttng_condition **condition)
+{
+	ssize_t ret, condition_size = 0;
+	struct lttng_condition_comm *condition_comm =
+			(struct lttng_condition_comm *) buf;
+
+	if (!buf || !condition) {
+		ret = -1;
+		goto end;
+	}
+
+	condition_size += sizeof(*condition_comm);
+	buf += condition_size;
+
+	switch (condition_comm->condition_type) {
+	case LTTNG_CONDITION_TYPE_BUFFER_USAGE_LOW:
+		ret = lttng_condition_buffer_usage_low_create_from_buffer(buf,
+				condition);
+		if (ret < 0) {
+			goto end;
+		}
+		condition_size += ret;
+		break;
+	case LTTNG_CONDITION_TYPE_BUFFER_USAGE_HIGH:
+		ret = lttng_condition_buffer_usage_high_create_from_buffer(buf,
+				condition);
+		if (ret < 0) {
+			goto end;
+		}
+		condition_size += ret;
+		break;
+	default:
+		ret = -1;
+		goto end;
+	}
+	ret = condition_size;
+end:
+	return ret;
+}