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3aafc165 PP |
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 |