| 1 | /* |
| 2 | * Copyright (c) 2020 Philippe Proulx <pproulx@efficios.com> |
| 3 | * |
| 4 | * SPDX-License-Identifier: MIT |
| 5 | */ |
| 6 | |
| 7 | #ifndef BABELTRACE_CPP_COMMON_BT2_CLOCK_SNAPSHOT_HPP |
| 8 | #define BABELTRACE_CPP_COMMON_BT2_CLOCK_SNAPSHOT_HPP |
| 9 | |
| 10 | #include <cstdint> |
| 11 | #include <babeltrace2/babeltrace.h> |
| 12 | |
| 13 | #include "internal/borrowed-obj.hpp" |
| 14 | #include "lib-error.hpp" |
| 15 | |
| 16 | namespace bt2 { |
| 17 | |
| 18 | class ConstClockSnapshot final : public internal::BorrowedObj<const bt_clock_snapshot> |
| 19 | { |
| 20 | public: |
| 21 | explicit ConstClockSnapshot(const _LibObjPtr libObjPtr) noexcept : _ThisBorrowedObj {libObjPtr} |
| 22 | { |
| 23 | } |
| 24 | |
| 25 | ConstClockSnapshot(const ConstClockSnapshot& clkSnapshot) noexcept : |
| 26 | _ThisBorrowedObj {clkSnapshot} |
| 27 | { |
| 28 | } |
| 29 | |
| 30 | ConstClockSnapshot& operator=(const ConstClockSnapshot& clkSnapshot) noexcept |
| 31 | { |
| 32 | _ThisBorrowedObj::operator=(clkSnapshot); |
| 33 | return *this; |
| 34 | } |
| 35 | |
| 36 | std::uint64_t value() const noexcept |
| 37 | { |
| 38 | return bt_clock_snapshot_get_value(this->_libObjPtr()); |
| 39 | } |
| 40 | |
| 41 | operator std::uint64_t() const noexcept |
| 42 | { |
| 43 | return this->value(); |
| 44 | } |
| 45 | |
| 46 | std::int64_t nsFromOrigin() const |
| 47 | { |
| 48 | std::int64_t nsFromOrigin; |
| 49 | const auto status = bt_clock_snapshot_get_ns_from_origin(this->_libObjPtr(), &nsFromOrigin); |
| 50 | |
| 51 | if (status == BT_CLOCK_SNAPSHOT_GET_NS_FROM_ORIGIN_STATUS_OVERFLOW_ERROR) { |
| 52 | throw LibOverflowError {}; |
| 53 | } |
| 54 | |
| 55 | return nsFromOrigin; |
| 56 | } |
| 57 | }; |
| 58 | |
| 59 | } // namespace bt2 |
| 60 | |
| 61 | #endif // BABELTRACE_CPP_COMMON_BT2_CLOCK_SNAPSHOT_HPP |