Add basic exception types and throwing facilities

[lttng-tools.git] / src / common / exception.hpp

diff --git a/src/common/exception.hpp b/src/common/exception.hpp
new file mode 100644 (file)
index 0000000..20731c0
--- /dev/null
+++ b/src/common/exception.hpp
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2022 Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ *
+ * SPDX-License-Identifier: LGPL-2.1-only
+ *
+ */
+
+#ifndef LTTNG_EXCEPTION_H_
+#define LTTNG_EXCEPTION_H_
+
+#include <string>
+#include <stdexcept>
+#include <system_error>
+
+#include <lttng/lttng-error.h>
+
+#define LTTNG_THROW_CTL(error_code) \
+       throw lttng::ctl::error(msg, error_code, __FILE__, __func__, __LINE__)
+#define LTTNG_THROW_POSIX(msg, errno_code) \
+       throw lttng::posix_error(msg, errno_code, __FILE__, __func__, __LINE__)
+
+namespace lttng {
+
+namespace ctl {
+/* Wrap lttng_error_code errors which may be reported through liblttng-ctl's interface. */
+class error : public std::runtime_error {
+public:
+       explicit error(lttng_error_code error_code,
+               const char *file_name,
+               const char *function_name,
+               unsigned int line_number);
+       lttng_error_code get_code() const;
+
+private:
+       lttng_error_code _error_code;
+};
+} /* namespace ctl */
+
+class posix_error : public std::system_error {
+public:
+       explicit posix_error(const std::string &msg,
+               int errno_code,
+               const char *file_name,
+               const char *function_name,
+               unsigned int line_number);
+};
+
+}; /* namespace lttng */
+
+#endif /* LTTNG_EXCEPTION_H_ */