X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fcommon%2Fsessiond-comm%2Fagent.hpp;fp=src%2Fcommon%2Fsessiond-comm%2Fagent.hpp;h=9fcb1f34956be67f4a5329e4a8c5cd9d2158a10f;hp=0000000000000000000000000000000000000000;hb=c9e313bc594f40a86eed237dce222c0fc99c957f;hpb=4878de5c7deb512bbdac4fdfc498907efa06fb7c

diff --git a/src/common/sessiond-comm/agent.hpp b/src/common/sessiond-comm/agent.hpp
new file mode 100644
index 000000000..9fcb1f349
--- /dev/null
+++ b/src/common/sessiond-comm/agent.hpp
@@ -0,0 +1,93 @@
+/*
+ * Copyright (C) 2013 David Goulet <dgoulet@efficios.com>
+ * Copyright (C) 2016 Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0-only
+ *
+ */
+
+#ifndef AGENT_COMM
+#define AGENT_COMM
+
+#include <stdint.h>
+
+#include <common/macros.hpp>
+#include <lttng/lttng.h>
+
+/*
+ * Command value passed in the header.
+ */
+enum lttcomm_agent_command {
+	AGENT_CMD_LIST			= 1,
+	AGENT_CMD_ENABLE		= 2,
+	AGENT_CMD_DISABLE		= 3,
+	AGENT_CMD_REG_DONE		= 4,	/* End registration process. */
+	AGENT_CMD_APP_CTX_ENABLE	= 5,
+	AGENT_CMD_APP_CTX_DISABLE	= 6,
+};
+
+/*
+ * Return codes from the agent.
+ */
+enum lttcomm_agent_ret_code {
+	/* Success, assumed to be the first entry */
+	AGENT_RET_CODE_SUCCESS		= 1,
+	/* Invalid command */
+	AGENT_RET_CODE_INVALID		= 2,
+	/* Unknown logger name */
+	AGENT_RET_CODE_UNKNOWN_NAME	= 3,
+	AGENT_RET_CODE_NR,
+};
+
+/*
+ * Agent application communication header.
+ */
+struct lttcomm_agent_hdr {
+	uint64_t data_size;		/* data size following this header */
+	uint32_t cmd;			/* Enum of agent command. */
+	uint32_t cmd_version;	/* command version */
+} LTTNG_PACKED;
+
+/*
+ * Enable event command payload. Will be immediately followed by the
+ * variable-length string representing the filter expression.
+ */
+struct lttcomm_agent_enable_event {
+	uint32_t loglevel_value;
+	uint32_t loglevel_type;
+	char name[LTTNG_SYMBOL_NAME_LEN];
+	uint32_t filter_expression_length;
+} LTTNG_PACKED;
+
+/*
+ * Disable event command payload.
+ */
+struct lttcomm_agent_disable_event {
+	char name[LTTNG_SYMBOL_NAME_LEN];
+} LTTNG_PACKED;
+
+/*
+ * Generic reply coming from the agent.
+ */
+struct lttcomm_agent_generic_reply {
+	uint32_t ret_code;
+} LTTNG_PACKED;
+
+/*
+ * List command reply header.
+ */
+struct lttcomm_agent_list_reply_hdr {
+	uint32_t ret_code;
+	uint32_t data_size;
+} LTTNG_PACKED;
+
+/*
+ * List command reply payload coming from the agent.
+ */
+struct lttcomm_agent_list_reply {
+	uint32_t nb_event;
+	/* List of event name each of them ending by a NULL byte. */
+	char payload[];
+} LTTNG_PACKED;
+
+#endif	/* AGENT_COMM */