2460319284

Committed 17 Apr 2026 11:02AM UTC coverage: 81.435% (-0.3%) from 81.695%

Build # 2460319284

Build Type

push

gitlab-ci

Committed by

web-flow

Commit Message

Merge pull request #1938 from michalkopczan/MEN-9075-mender-marks-download-as-imcomplete-when-update-module-returns-too-fast

chore: Document stream tree flow synchronization

Coverage Stats

9181 of 11274 relevant lines covered (81.44%)

20188.59 hits per line

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82.35

/src/common/key_value_database.cpp

// Copyright 2023 Northern.tech AS
//
//    Licensed under the Apache License, Version 2.0 (the "License");
//    you may not use this file except in compliance with the License.
//    You may obtain a copy of the License at
//
//        http://www.apache.org/licenses/LICENSE-2.0
//
//    Unless required by applicable law or agreed to in writing, software
//    distributed under the License is distributed on an "AS IS" BASIS,
//    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//    See the License for the specific language governing permissions and
//    limitations under the License.

#include <common/key_value_database.hpp>

#include <common/common.hpp>

namespace mender {
namespace common {
namespace key_value_database {

namespace common = mender::common;

const KeyValueDatabaseErrorCategoryClass KeyValueDatabaseErrorCategory =
        KeyValueDatabaseErrorCategoryClass();

const char *KeyValueDatabaseErrorCategoryClass::name() const noexcept {
        return "KeyValueDatabaseErrorCategory";
}

string KeyValueDatabaseErrorCategoryClass::message(int code) const {
        switch (code) {
        case NoError:
                return "Success";
        case KeyError:
                return "Key error";
        case LmdbError:
                return "LMDB error";
        case AlreadyExistsError:
                return "Key already exists";
        default:
                return "Unknown";
        }
}

Error MakeError(ErrorCode code, const string &msg) {
        return Error(error_condition(code, KeyValueDatabaseErrorCategory), msg);
}

expected::ExpectedBytes KeyValueDatabase::Read(const string &key) {
        vector<uint8_t> ret;
        auto err = ReadTransaction([&key, &ret](Transaction &txn) -> error::Error {
                auto result = txn.Read(key);
                if (result) {
                        ret = std::move(result.value());
                        return error::NoError;
                } else {
                        return result.error();
                }
        });
        if (mender::common::error::NoError != err) {
                return expected::unexpected(err);
        } else {
                return ret;
        }
}

error::Error KeyValueDatabase::Write(const string &key, const vector<uint8_t> &value) {
        return WriteTransaction(
                [&key, &value](Transaction &txn) -> error::Error { return txn.Write(key, value); });
}

error::Error KeyValueDatabase::Remove(const string &key) {
        return WriteTransaction([&key](Transaction &txn) -> error::Error { return txn.Remove(key); });
}

Error ReadString(Transaction &txn, const string &key, string &value_str, bool missing_ok) {
        auto ex_bytes = txn.Read(key);
        if (!ex_bytes) {
                if (!missing_ok || (ex_bytes.error().code != MakeError(KeyError, "").code)) {
                        return ex_bytes.error();
                }
        } else {
                value_str = common::StringFromByteVector(ex_bytes.value());
        }
        return error::NoError;
}

} // namespace key_value_database
} // namespace common
} // namespace mender

1	// Copyright 2023 Northern.tech AS
2	//
3	// Licensed under the Apache License, Version 2.0 (the "License");
4	// you may not use this file except in compliance with the License.
5	// You may obtain a copy of the License at
6	//
7	// http://www.apache.org/licenses/LICENSE-2.0
8	//
9	// Unless required by applicable law or agreed to in writing, software
10	// distributed under the License is distributed on an "AS IS" BASIS,
11	// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12	// See the License for the specific language governing permissions and
13	// limitations under the License.
14
15	#include <common/key_value_database.hpp>
16
17	#include <common/common.hpp>
18
19	namespace mender {
20	namespace common {
21	namespace key_value_database {
22
23	namespace common = mender::common;
24
25	const KeyValueDatabaseErrorCategoryClass KeyValueDatabaseErrorCategory =
26	KeyValueDatabaseErrorCategoryClass();
27
28	const char *KeyValueDatabaseErrorCategoryClass::name() const noexcept {	×
29	return "KeyValueDatabaseErrorCategory";	×
30	}
31
32	string KeyValueDatabaseErrorCategoryClass::message(int code) const {	3✔
33	switch (code) {	3✔
34	case NoError:
35	return "Success";	×
36	case KeyError:
37	return "Key error";	1✔
38	case LmdbError:
39	return "LMDB error";	2✔
40	case AlreadyExistsError:
41	return "Key already exists";	×
42	default:
43	return "Unknown";	×
44	}
45	}
46
47	Error MakeError(ErrorCode code, const string &msg) {	1,454✔
48	return Error(error_condition(code, KeyValueDatabaseErrorCategory), msg);	2,348✔
49	}
50
51	expected::ExpectedBytes KeyValueDatabase::Read(const string &key) {	271✔
52	vector<uint8_t> ret;
53	auto err = ReadTransaction([&key, &ret](Transaction &txn) -> error::Error {	271✔
54	auto result = txn.Read(key);	271✔
55	if (result) {	271✔
56	ret = std::move(result.value());	115✔
57	return error::NoError;	115✔
58	} else {
59	return result.error();	156✔
60	}
61	});	271✔
62	if (mender::common::error::NoError != err) {	271✔
63	return expected::unexpected(err);	312✔
64	} else {
65	return ret;	115✔
66	}
67	}
68
69	error::Error KeyValueDatabase::Write(const string &key, const vector<uint8_t> &value) {	284✔
70	return WriteTransaction(	284✔
71	[&key, &value](Transaction &txn) -> error::Error { return txn.Write(key, value); });	852✔
72	}
73
74	error::Error KeyValueDatabase::Remove(const string &key) {	980✔
75	return WriteTransaction([&key](Transaction &txn) -> error::Error { return txn.Remove(key); });	2,940✔
76	}
77
78	Error ReadString(Transaction &txn, const string &key, string &value_str, bool missing_ok) {	1,524✔
79	auto ex_bytes = txn.Read(key);	1,524✔
80	if (!ex_bytes) {	1,524✔
81	if (!missing_ok \|\| (ex_bytes.error().code != MakeError(KeyError, "").code)) {	3,576✔
82	return ex_bytes.error();	×
83	}
84	} else {
85	value_str = common::StringFromByteVector(ex_bytes.value());	1,260✔
86	}
87	return error::NoError;	1,524✔
88	}
89
90	} // namespace key_value_database
91	} // namespace common
92	} // namespace mender

mendersoftware / mender / 2460319284

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