Update upstream source from tag 'upstream/6.0.0'master

Update to upstream version '6.0.0'
with Debian dir 5604a80ec1c96ca76f25f40d78e6ef855abec322

5 files changed, 0 insertions, 483 deletions

diff --git a/src/mongo/db/query/util/deferred.h b/src/mongo/db/query/util/deferred.h
deleted file mode 100644
index a2609bb6b49..00000000000
--- a/src/mongo/db/query/util/deferred.h
+++ /dev/null
@@ -1,118 +0,0 @@
-/**
- *    Copyright (C) 2023-present MongoDB, Inc.
- *
- *    This program is free software: you can redistribute it and/or modify
- *    it under the terms of the Server Side Public License, version 1,
- *    as published by MongoDB, Inc.
- *
- *    This program is distributed in the hope that it will be useful,
- *    but WITHOUT ANY WARRANTY; without even the implied warranty of
- *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *    Server Side Public License for more details.
- *
- *    You should have received a copy of the Server Side Public License
- *    along with this program. If not, see
- *    <http://www.mongodb.com/licensing/server-side-public-license>.
- *
- *    As a special exception, the copyright holders give permission to link the
- *    code of portions of this program with the OpenSSL library under certain
- *    conditions as described in each individual source file and distribute
- *    linked combinations including the program with the OpenSSL library. You
- *    must comply with the Server Side Public License in all respects for
- *    all of the code used other than as permitted herein. If you modify file(s)
- *    with this exception, you may extend this exception to your version of the
- *    file(s), but you are not obligated to do so. If you do not wish to do so,
- *    delete this exception statement from your version. If you delete this
- *    exception statement from all source files in the program, then also delete
- *    it in the license file.
- */
-
-#pragma once
-
-#include <functional>
-
-namespace mongo {
-
-/**
- * A template class that provides a way to defer the initialization of an object until its value is
- * actually required. This is also commonly referred to as lazy initialization.
- *
- * Dangers:
- * - This implementation is currently not thread safe, and it shouldn't be used in multi-threaded
- *   fashion.
- * - Be careful about using this for lazy initialization of data members and capturing the 'this'
- *   variable. Code like this will result in buggy/unsafe move constructors, which would have a
- *   dangling reference to the moved-from type:
- *
- *   class MyType {
- *       int x;
- *       // !!! Dangling 'this' when moved !!!
- *       Deferred<int> xSquared{[this]() { return this->x * this-> x; };
- *   };
- *   Instead, it is better to do something like this:
- *   class MyType {
- *       int xSquared() const {
- *          return *_xSquared.get(_x);
- *       }
- *
- *       int _x;
- *       Deferred<int, int> _xSquared{[](int x) { return x * x; };
- *   };
- * - As a similar danger, the value is only computed once. if you initialize it with arguments like
- *   the above 'xSquared()' implementation, then be cogniscent that the value will never change. If
- *   '_x' changes, '_xSquared' will not.
- *
- * A Deferred class can be constructed with either an initial value (eager initialization) or a
- * function that will generate the value when needed.
- */
-template <typename T, typename... Args>
-class Deferred {
-public:
-    /**
-     * Instantiates a Deffered<T> with the given data - no callbacks or lazy initialization.
-     */
-    Deferred(T data) : _data(data) {}
-
-    /**
-     * Stores a function to compute a T later. Please note the warnings described in this class
-     * comment.
-     */
-    Deferred(std::function<T(Args&&...)> initializer) : _initializer(std::move(initializer)) {}
-
-    /**
-     * Returns a pointer to the managed object. Initializes the object if it hasn't done so already.
-     */
-    T& get(Args&&... args) const {
-        if (_initializer) {
-            _data = _initializer(std::forward<Args>(args)...);
-            _initializer = nullptr;
-        }
-        return _data;
-    }
-
-    /**
-     * Dereferences the pointer to the managed object. Note this is only a valid shortcut if there
-     * are no arguments to '_initializer'.
-     */
-    T* operator->() const {
-        return &get();
-    }
-
-    /**
-     * Returns a referenced to the managed object. Initializes the object if it hasn't done so
-     * already. Note this is only a valid shortcut if there are no arguments to '_initializer'.
-     */
-    const T& operator*() const {
-        return get();
-    }
-
-    bool isInitialized() const {
-        return _initializer ? false : true;
-    }
-
-private:
-    mutable T _data;
-    mutable std::function<T(Args&&...)> _initializer;
-};
-
-}  // namespace mongo
diff --git a/src/mongo/db/query/util/deferred_test.cpp b/src/mongo/db/query/util/deferred_test.cpp
deleted file mode 100644
index de256394787..00000000000
--- a/src/mongo/db/query/util/deferred_test.cpp
+++ /dev/null
@@ -1,98 +0,0 @@
-/**
- *    Copyright (C) 2023-present MongoDB, Inc.
- *
- *    This program is free software: you can redistribute it and/or modify
- *    it under the terms of the Server Side Public License, version 1,
- *    as published by MongoDB, Inc.
- *
- *    This program is distributed in the hope that it will be useful,
- *    but WITHOUT ANY WARRANTY; without even the implied warranty of
- *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *    Server Side Public License for more details.
- *
- *    You should have received a copy of the Server Side Public License
- *    along with this program. If not, see
- *    <http://www.mongodb.com/licensing/server-side-public-license>.
- *
- *    As a special exception, the copyright holders give permission to link the
- *    code of portions of this program with the OpenSSL library under certain
- *    conditions as described in each individual source file and distribute
- *    linked combinations including the program with the OpenSSL library. You
- *    must comply with the Server Side Public License in all respects for
- *    all of the code used other than as permitted herein. If you modify file(s)
- *    with this exception, you may extend this exception to your version of the
- *    file(s), but you are not obligated to do so. If you do not wish to do so,
- *    delete this exception statement from your version. If you delete this
- *    exception statement from all source files in the program, then also delete
- *    it in the license file.
- */
-
-#include "mongo/db/query/util/deferred.h"
-
-#include "mongo/unittest/unittest.h"
-
-namespace mongo {
-using std::string;
-using namespace std::string_literals;
-
-
-TEST(DeferredTest, EagerInitialization) {
-    Deferred<string> eager{"someString"};
-    ASSERT_TRUE(eager.isInitialized());
-    ASSERT_EQ(eager.get(), "someString"s);
-    ASSERT_EQ(*eager, "someString"s);
-}
-
-TEST(DeferredTest, DeferredInitialization) {
-    size_t initializationCount = 0;
-    Deferred<string> deferred{[&]() {
-        initializationCount++;
-        return "someString"s;
-    }};
-    ASSERT_FALSE(deferred.isInitialized());
-
-    // Ensure the deferred object wasn't initialized on creation.
-    ASSERT_EQ(initializationCount, 0);
-
-    // Ensure that the deferred object is initialized on pointer dereferences.
-    ASSERT_FALSE(deferred->empty());
-    ASSERT_TRUE(deferred.isInitialized());
-
-    ASSERT_EQ(initializationCount, 1);
-
-    // Ensure that the content of the deferred object is equal to its raw counterpart, while also
-    // verifing that it is initialized at most once.
-    ASSERT_EQ(deferred.get(), "someString"s);
-    ASSERT_EQ(initializationCount, 1);
-}
-
-TEST(DeferredTest, DeferredInitializationWithOneArgument) {
-    size_t initializationCount = 0;
-    Deferred<string, const string&> deferred{[&](const string& input) {
-        initializationCount++;
-        return "{" + input + "}";
-    }};
-
-    // Ensure the deferred object wasn't initialized on creation.
-    ASSERT_EQ(initializationCount, 0);
-
-    // Ensure that the content of the deferred object is equal to its raw counterpart, while also
-    // verifing that it is initialized at most once.
-    ASSERT_EQ(deferred.get("more curlies"), "{more curlies}"s);
-    ASSERT_EQ(initializationCount, 1);
-
-    // Note that the value is cached, so it's not really valid to call it with a different argument.
-    ASSERT_EQ(deferred.get("merganser"), "{more curlies}"s);
-    ASSERT_EQ(initializationCount, 1);
-}
-
-TEST(DeferredTest, DeferredInitializationWithTwoArgs) {
-    Deferred<string, const string&, const string&> deferred{
-        [&](const auto& input, const auto& prefix) { return prefix + input; }};
-
-    ASSERT_EQ(deferred.get("cowbell", "more "), "more cowbell"s);
-    ASSERT_EQ(deferred.get("cowbell", "more "), "more cowbell"s);
-    ASSERT_EQ(deferred.get("cowbell", "less?"), "more cowbell"s);
-    ASSERT_EQ(deferred.get("tests", "better"), "more cowbell"s);
-}
-}  // namespace mongo
diff --git a/src/mongo/db/query/util/memory_util.cpp b/src/mongo/db/query/util/memory_util.cpp
deleted file mode 100644
index 8a206deb2b7..00000000000
--- a/src/mongo/db/query/util/memory_util.cpp
+++ /dev/null
@@ -1,128 +0,0 @@
-/**
- *    Copyright (C) 2021-present MongoDB, Inc.
- *
- *    This program is free software: you can redistribute it and/or modify
- *    it under the terms of the Server Side Public License, version 1,
- *    as published by MongoDB, Inc.
- *
- *    This program is distributed in the hope that it will be useful,
- *    but WITHOUT ANY WARRANTY; without even the implied warranty of
- *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *    Server Side Public License for more details.
- *
- *    You should have received a copy of the Server Side Public License
- *    along with this program. If not, see
- *    <http://www.mongodb.com/licensing/server-side-public-license>.
- *
- *    As a special exception, the copyright holders give permission to link the
- *    code of portions of this program with the OpenSSL library under certain
- *    conditions as described in each individual source file and distribute
- *    linked combinations including the program with the OpenSSL library. You
- *    must comply with the Server Side Public License in all respects for
- *    all of the code used other than as permitted herein. If you modify file(s)
- *    with this exception, you may extend this exception to your version of the
- *    file(s), but you are not obligated to do so. If you do not wish to do so,
- *    delete this exception statement from your version. If you delete this
- *    exception statement from all source files in the program, then also delete
- *    it in the license file.
- */
-
-#define MONGO_LOGV2_DEFAULT_COMPONENT ::mongo::logv2::LogComponent::kQuery
-
-#include "mongo/db/query/util/memory_util.h"
-
-#include <cstddef>
-#include <pcrecpp.h>
-
-#include "mongo/logv2/log.h"
-#include "mongo/util/processinfo.h"
-
-
-namespace mongo::memory_util {
-
-StatusWith<MemoryUnits> parseUnitString(const std::string& strUnit) {
-    if (strUnit.empty()) {
-        return Status(ErrorCodes::Error{6007010}, "Unit value cannot be empty");
-    }
-
-    if (strUnit[0] == '%') {
-        return MemoryUnits::kPercent;
-    } else if (strUnit[0] == 'M' || strUnit[0] == 'm') {
-        return MemoryUnits::kMB;
-    } else if (strUnit[0] == 'G' || strUnit[0] == 'g') {
-        return MemoryUnits::kGB;
-    }
-
-    return Status(ErrorCodes::Error{6007011}, "Incorrect unit value");
-}
-
-StatusWith<MemorySize> MemorySize::parse(const std::string& str) {
-    pcrecpp::RE_Options opt;
-    opt.set_caseless(true);
-    // Looks for a floating point number with followed by a unit suffix (MB, GB, %).
-    pcrecpp::RE re("\\s*(\\d+\\.?\\d*)\\s*(MB|GB|%)\\s*", opt);
-
-    double size{};
-    std::string strUnit{};
-    if (!re.FullMatch(str, &size, &strUnit)) {
-        return {ErrorCodes::Error{6007012}, "Unable to parse memory size string"};
-    }
-
-    auto statusWithUnit = parseUnitString(strUnit);
-    if (!statusWithUnit.isOK()) {
-        return statusWithUnit.getStatus();
-    }
-    return MemorySize{size, statusWithUnit.getValue()};
-}
-
-size_t convertToSizeInBytes(const MemorySize& memSize) {
-    constexpr size_t kBytesInMB = 1024 * 1024;
-    constexpr size_t kMBytesInGB = 1024;
-
-    double sizeInMB = memSize.size;
-
-    switch (memSize.units) {
-        case MemoryUnits::kPercent:
-            sizeInMB *= ProcessInfo::getMemSizeMB() / 100.0;
-            break;
-        case MemoryUnits::kMB:
-            break;
-        case MemoryUnits::kGB:
-            sizeInMB *= kMBytesInGB;
-            break;
-    }
-
-    return static_cast<size_t>(sizeInMB * kBytesInMB);
-}
-
-size_t getRequestedMemSizeInBytes(const MemorySize& memSize) {
-    size_t planCacheSize = convertToSizeInBytes(memSize);
-    uassert(5968001,
-            "Cache size must be at least 1KB * number of cores",
-            planCacheSize >= 1024 * ProcessInfo::getNumCores());
-    return planCacheSize;
-}
-
-/**
- * Sets upper limit on a storage structure's size. Either that structure's maximumSize or to
- * percentage of the total system's memory (both known at call site), whichever is smaller.
- */
-size_t capMemorySize(size_t requestedSizeBytes,
-                     size_t maximumSizeGB,
-                     double percentTotalSystemMemory) {
-    constexpr size_t kBytesInGB = 1024 * 1024 * 1024;
-    // Express maximum size in bytes.
-    const size_t maximumSizeBytes = maximumSizeGB * kBytesInGB;
-    const memory_util::MemorySize limitToProcessSize{percentTotalSystemMemory,
-                                                     memory_util::MemoryUnits::kPercent};
-    const size_t limitToProcessSizeInBytes = convertToSizeInBytes(limitToProcessSize);
-
-    // The size will be capped by the minimum of the two values defined above.
-    const size_t upperLimit = std::min(maximumSizeBytes, limitToProcessSizeInBytes);
-
-    if (requestedSizeBytes > upperLimit) {
-        requestedSizeBytes = upperLimit;
-    }
-    return requestedSizeBytes;
-}
-}  // namespace mongo::memory_util
diff --git a/src/mongo/db/query/util/memory_util.h b/src/mongo/db/query/util/memory_util.h
deleted file mode 100644
index 345780b4c84..00000000000
--- a/src/mongo/db/query/util/memory_util.h
+++ /dev/null
@@ -1,66 +0,0 @@
-/**
- *    Copyright (C) 2021-present MongoDB, Inc.
- *
- *    This program is free software: you can redistribute it and/or modify
- *    it under the terms of the Server Side Public License, version 1,
- *    as published by MongoDB, Inc.
- *
- *    This program is distributed in the hope that it will be useful,
- *    but WITHOUT ANY WARRANTY; without even the implied warranty of
- *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *    Server Side Public License for more details.
- *
- *    You should have received a copy of the Server Side Public License
- *    along with this program. If not, see
- *    <http://www.mongodb.com/licensing/server-side-public-license>.
- *
- *    As a special exception, the copyright holders give permission to link the
- *    code of portions of this program with the OpenSSL library under certain
- *    conditions as described in each individual source file and distribute
- *    linked combinations including the program with the OpenSSL library. You
- *    must comply with the Server Side Public License in all respects for
- *    all of the code used other than as permitted herein. If you modify file(s)
- *    with this exception, you may extend this exception to your version of the
- *    file(s), but you are not obligated to do so. If you do not wish to do so,
- *    delete this exception statement from your version. If you delete this
- *    exception statement from all source files in the program, then also delete
- *    it in the license file.
- */
-
-#pragma once
-
-#include <string>
-
-#include "mongo/base/error_codes.h"
-#include "mongo/base/status_with.h"
-
-namespace mongo::memory_util {
-
-/**
- * Defines units of memory.
- */
-enum class MemoryUnits {
-    kPercent,
-    kMB,
-    kGB,
-};
-
-/**
- * Represents parsed memory size parameter.
- */
-struct MemorySize {
-    static StatusWith<MemorySize> parse(const std::string& str);
-
-    const double size;
-    const MemoryUnits units;
-};
-
-StatusWith<MemoryUnits> parseUnitString(const std::string& strUnit);
-size_t convertToSizeInBytes(const MemorySize& memSize);
-size_t capMemorySize(size_t requestedSizeBytes,
-                     size_t maximumSizeGB,
-                     double percentTotalSystemMemory);
-size_t getRequestedMemSizeInBytes(const MemorySize& memSize);
-
-
-}  // namespace mongo::memory_util
diff --git a/src/mongo/db/query/util/memory_util_test.cpp b/src/mongo/db/query/util/memory_util_test.cpp
deleted file mode 100644
index 78f7b3098d6..00000000000
--- a/src/mongo/db/query/util/memory_util_test.cpp
+++ /dev/null
@@ -1,73 +0,0 @@
-/**
- *    Copyright (C) 2021-present MongoDB, Inc.
- *
- *    This program is free software: you can redistribute it and/or modify
- *    it under the terms of the Server Side Public License, version 1,
- *    as published by MongoDB, Inc.
- *
- *    This program is distributed in the hope that it will be useful,
- *    but WITHOUT ANY WARRANTY; without even the implied warranty of
- *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *    Server Side Public License for more details.
- *
- *    You should have received a copy of the Server Side Public License
- *    along with this program. If not, see
- *    <http://www.mongodb.com/licensing/server-side-public-license>.
- *
- *    As a special exception, the copyright holders give permission to link the
- *    code of portions of this program with the OpenSSL library under certain
- *    conditions as described in each individual source file and distribute
- *    linked combinations including the program with the OpenSSL library. You
- *    must comply with the Server Side Public License in all respects for
- *    all of the code used other than as permitted herein. If you modify file(s)
- *    with this exception, you may extend this exception to your version of the
- *    file(s), but you are not obligated to do so. If you do not wish to do so,
- *    delete this exception statement from your version. If you delete this
- *    exception statement from all source files in the program, then also delete
- *    it in the license file.
- */
-
-#include "mongo/db/query/util/memory_util.h"
-
-#include "mongo/unittest/unittest.h"
-
-namespace mongo::memory_util {
-
-bool operator==(const MemorySize& lhs, const MemorySize& rhs) {
-    constexpr double kEpsilon = 1e-10;
-    return std::abs(lhs.size - rhs.size) < kEpsilon && lhs.units == rhs.units;
-}
-
-TEST(MemorySizeTest, ParseUnitStringPercent) {
-    ASSERT_TRUE(MemoryUnits::kPercent == parseUnitString("%"));
-}
-
-TEST(MemorySizeTest, ParseUnitStringMB) {
-    ASSERT_TRUE(MemoryUnits::kMB == parseUnitString("MB"));
-    ASSERT_TRUE(MemoryUnits::kMB == parseUnitString("mb"));
-    ASSERT_TRUE(MemoryUnits::kMB == parseUnitString("mB"));
-    ASSERT_TRUE(MemoryUnits::kMB == parseUnitString("Mb"));
-}
-
-TEST(MemorySizeTest, ParseUnitStringGB) {
-    ASSERT_TRUE(MemoryUnits::kGB == parseUnitString("GB"));
-    ASSERT_TRUE(MemoryUnits::kGB == parseUnitString("gb"));
-    ASSERT_TRUE(MemoryUnits::kGB == parseUnitString("gB"));
-    ASSERT_TRUE(MemoryUnits::kGB == parseUnitString("Gb"));
-}
-
-TEST(MemorySizeTest, ParseUnitStringIncorrectValue) {
-    ASSERT_NOT_OK(parseUnitString("").getStatus());
-    ASSERT_NOT_OK(parseUnitString(" ").getStatus());
-    ASSERT_NOT_OK(parseUnitString("KB").getStatus());
-}
-
-TEST(MemorySizeTest, ParseMemorySize) {
-    ASSERT_TRUE((MemorySize{10.0, MemoryUnits::kPercent}) == MemorySize::parse("10%"));
-    ASSERT_TRUE((MemorySize{300.0, MemoryUnits::kMB}) == MemorySize::parse("300MB"));
-    ASSERT_TRUE((MemorySize{4.0, MemoryUnits::kGB}) == MemorySize::parse("4GB"));
-    ASSERT_TRUE((MemorySize{5.1, MemoryUnits::kPercent}) == MemorySize::parse(" 5.1%"));
-    ASSERT_TRUE((MemorySize{11.1, MemoryUnits::kMB}) == MemorySize::parse("11.1 mb"));
-    ASSERT_TRUE((MemorySize{12.1, MemoryUnits::kGB}) == MemorySize::parse("  12.1    Gb  "));
-}
-}  // namespace mongo::memory_util