Rename C++ header files to .hpp

[lttng-tools.git] / src / lib / lttng-ctl / lttng-ctl-helper.hpp

diff --git a/src/lib/lttng-ctl/lttng-ctl-helper.hpp b/src/lib/lttng-ctl/lttng-ctl-helper.hpp
new file mode 100644 (file)
index 0000000..4b025a4
--- /dev/null
+++ b/src/lib/lttng-ctl/lttng-ctl-helper.hpp
@@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 2013 David Goulet <dgoulet@efficios.com>
+ *
+ * SPDX-License-Identifier: LGPL-2.1-only
+ *
+ */
+
+#ifndef LTTNG_CTL_HELPER_H
+#define LTTNG_CTL_HELPER_H
+
+#include <stdio.h>
+
+#include <common/sessiond-comm/sessiond-comm.hpp>
+#include <lttng/lttng.h>
+
+/* Copy helper functions. */
+void lttng_ctl_copy_lttng_domain(struct lttng_domain *dst,
+               struct lttng_domain *src);
+
+/*
+ * Sends the lttcomm message to the session daemon and fills buf if the
+ * returned data is not NULL.
+ *
+ * Return the size of the received data on success or else a negative lttng
+ * error code. If buf is NULL, 0 is returned on success.
+ */
+int lttng_ctl_ask_sessiond_fds_varlen(struct lttcomm_session_msg *lsm,
+               const int *fds, size_t nb_fd,
+               const void *vardata, size_t vardata_len,
+               void **user_payload_buf, void **user_cmd_header_buf,
+               size_t *user_cmd_header_len);
+
+/*
+ * Sends the lttcomm message to the session daemon and fills the reply payload.
+ *
+ * Return the size of the received data on success or else a negative lttng
+ * error code.
+ */
+int lttng_ctl_ask_sessiond_payload(struct lttng_payload_view *message,
+               struct lttng_payload *reply);
+
+/*
+ * Calls lttng_ctl_ask_sessiond_fds_varlen() with no expected command header.
+ */
+static inline int lttng_ctl_ask_sessiond_varlen_no_cmd_header(
+               struct lttcomm_session_msg *lsm,
+               const void *vardata,
+               size_t vardata_len,
+               void **user_payload_buf)
+{
+       return lttng_ctl_ask_sessiond_fds_varlen(lsm, NULL, 0, vardata,
+               vardata_len, user_payload_buf, NULL, NULL);
+}
+
+/*
+ * Calls lttng_ctl_ask_sessiond_fds_varlen() with fds and no expected command header.
+ */
+static inline
+int lttng_ctl_ask_sessiond_fds_no_cmd_header(struct lttcomm_session_msg *lsm,
+               const int *fds, size_t nb_fd, void **buf __attribute__((unused)))
+{
+       return lttng_ctl_ask_sessiond_fds_varlen(lsm, fds, nb_fd, NULL,
+               0, NULL, NULL, NULL);
+}
+/*
+ * Use this if no variable length data needs to be sent.
+ */
+static inline
+int lttng_ctl_ask_sessiond(struct lttcomm_session_msg *lsm, void **buf)
+{
+       return lttng_ctl_ask_sessiond_varlen_no_cmd_header(lsm, NULL, 0, buf);
+}
+
+int lttng_check_tracing_group(void);
+
+int connect_sessiond(void);
+
+#endif /* LTTNG_CTL_HELPER_H */