Rename C++ header files to .hpp

[lttng-tools.git] / src / common / sessiond-comm / agent.hpp

diff --git a/src/common/sessiond-comm/agent.hpp b/src/common/sessiond-comm/agent.hpp
new file mode 100644 (file)
index 0000000..9fcb1f3
--- /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 */