Revert "metrics have been added"

This reverts commit 16e792be75335b09a4f9f254e3972030af83b1ad, reversing
changes made to 3790f3d771d1a65ed6c0d05f3e0d79ff13308142.

10 files changed, 0 insertions, 476 deletions

diff --git a/library/cpp/string_utils/secret_string/secret_string.cpp b/library/cpp/string_utils/secret_string/secret_string.cpp
deleted file mode 100644
index 3b68d3cd27..0000000000
--- a/library/cpp/string_utils/secret_string/secret_string.cpp
+++ /dev/null
@@ -1,68 +0,0 @@
-#include "secret_string.h"
-
-#include <util/system/madvise.h>
-
-namespace NSecretString {
-    TSecretString::TSecretString(TStringBuf value) {
-        Init(value);
-    }
-
-    TSecretString::~TSecretString() {
-        try {
-            Clear();
-        } catch (...) {
-        }
-    }
-
-    TSecretString& TSecretString::operator=(const TSecretString& o) {
-        if (&o == this) {
-            return *this;
-        }
-
-        Init(o.Value_);
-
-        return *this;
-    }
-
-    /**
-     * It is not honest "move". Actually it is copy-assignment with cleaning of other instance.
-     * This way allowes to avoid side effects of string optimizations:
-     *   Copy-On-Write or Short-String-Optimization
-     */
-    TSecretString& TSecretString::operator=(TSecretString&& o) {
-        if (&o == this) {
-            return *this;
-        }
-
-        Init(o.Value_);
-        o.Clear();
-
-        return *this;
-    }
-
-    TSecretString& TSecretString::operator=(const TStringBuf o) {
-        Init(o);
-
-        return *this;
-    }
-
-    void TSecretString::Init(TStringBuf value) {
-        Clear();
-        if (value.empty()) {
-            return;
-        }
-
-        Value_ = value;
-        MadviseExcludeFromCoreDump(Value_);
-    }
-
-    void TSecretString::Clear() {
-        if (Value_.empty()) {
-            return;
-        }
-
-        SecureZero((void*)Value_.data(), Value_.size());
-        MadviseIncludeIntoCoreDump(Value_);
-        Value_.clear();
-    }
-}
diff --git a/library/cpp/string_utils/secret_string/secret_string.h b/library/cpp/string_utils/secret_string/secret_string.h
deleted file mode 100644
index fdb9f6a85c..0000000000
--- a/library/cpp/string_utils/secret_string/secret_string.h
+++ /dev/null
@@ -1,74 +0,0 @@
-#pragma once
-
-#include <library/cpp/string_utils/ztstrbuf/ztstrbuf.h>
-
-#include <util/generic/string.h>
-
-namespace NSecretString {
-    /**
-     * TSecretString allowes to store some long lived secrets in "secure" storage in memory.
-     * Common usage:
-     *  1) read secret value from disk/env/etc
-     *  2) put it into TSecretString
-     *  3) destory secret copy from 1)
-     *
-     * Useful scenerios for TSecretString:
-     *   - in memory only tasks: using key to create crypto signature;
-     *   - rare network cases: db password on connection or OAuth token in background tasks.
-     *     These cases disclosure the secret
-     *       because of sending it over network with some I/O frameworks.
-     *     Usually such frameworks copy input params to provide network protocol: gRPC, for example.
-     *
-     * Supported features:
-     *  1. Exclude secret from core dump.
-     *     madvise(MADV_DONTDUMP) in ctor excludes full memory page from core dump.
-     *     madvise(MADV_DODUMP) in dtor reverts previous action.
-     *  2. Zero memory before free.
-     *
-     * Code dump looks like this:
-(gdb) print s
-$1 = (const TSecretString &) @0x7fff23c4c560: {
-  Value_ = {<TStringBase<TBasicString<char, std::__y1::char_traits<char> >, char, std::__y1::char_traits<char> >> = {
-      static npos = <optimized out>}, Data_ = 0x107c001d8 <error: Cannot access memory at address 0x107c001d8>}}
-     */
-
-    class TSecretString {
-    public:
-        TSecretString() = default;
-        TSecretString(TStringBuf value);
-        ~TSecretString();
-
-        TSecretString(const TSecretString& o)
-            : TSecretString(o.Value())
-        {
-        }
-
-        TSecretString(TSecretString&& o)
-            : TSecretString(o.Value())
-        {
-            o.Clear();
-        }
-
-        TSecretString& operator=(const TSecretString& o);
-        TSecretString& operator=(TSecretString&& o);
-
-        TSecretString& operator=(const TStringBuf o);
-
-        operator TZtStringBuf() const {
-            return Value();
-        }
-
-        // Provides zero terminated string
-        TZtStringBuf Value() const {
-            return TZtStringBuf(Value_);
-        }
-
-    private:
-        // TStringBuf breaks Copy-On-Write to provide correct copy-ctor and copy-assignment
-        void Init(TStringBuf value);
-        void Clear();
-
-    private:
-        TString Value_;
-    };
-}
diff --git a/library/cpp/string_utils/secret_string/ya.make b/library/cpp/string_utils/secret_string/ya.make
deleted file mode 100644
index c1d43f7a1d..0000000000
--- a/library/cpp/string_utils/secret_string/ya.make
+++ /dev/null
@@ -1,13 +0,0 @@
-LIBRARY()
-
-SRCS(
-    secret_string.cpp
-)
-
-PEERDIR(
-    library/cpp/string_utils/ztstrbuf
-)
-
-END()
-
-RECURSE_FOR_TESTS(ut)
diff --git a/library/cpp/string_utils/tskv_format/builder.cpp b/library/cpp/string_utils/tskv_format/builder.cpp
deleted file mode 100644
index ede9074022..0000000000
--- a/library/cpp/string_utils/tskv_format/builder.cpp
+++ /dev/null
@@ -1 +0,0 @@
-#include "builder.h"
diff --git a/library/cpp/string_utils/tskv_format/builder.h b/library/cpp/string_utils/tskv_format/builder.h
deleted file mode 100644
index 40689ddc85..0000000000
--- a/library/cpp/string_utils/tskv_format/builder.h
+++ /dev/null
@@ -1,67 +0,0 @@
-#pragma once
-
-#include "escape.h"
-
-#include <util/stream/str.h>
-
-namespace NTskvFormat {
-    class TLogBuilder {
-    private:
-        TStringStream Out;
-
-    public:
-        TLogBuilder() = default;
-
-        TLogBuilder(TStringBuf logType, ui32 unixtime) {
-            Begin(logType, unixtime);
-        }
-
-        TLogBuilder(TStringBuf logType) {
-            Begin(logType);
-        }
-
-        TLogBuilder& Add(TStringBuf fieldName, TStringBuf fieldValue) {
-            if (!Out.Empty()) {
-                Out << '\t';
-            }
-            Escape(fieldName, Out.Str());
-            Out << '=';
-            Escape(fieldValue, Out.Str());
-
-            return *this;
-        }
-
-        TLogBuilder& AddUnescaped(TStringBuf fieldName, TStringBuf fieldValue) {
-            if (!Out.Empty()) {
-                Out << '\t';
-            }
-            Out << fieldName << '=' << fieldValue;
-            return *this;
-        }
-
-        TLogBuilder& Begin(TStringBuf logType, ui32 unixtime) {
-            Out << "tskv\ttskv_format=" << logType << "\tunixtime=" << unixtime;
-            return *this;
-        }
-
-        TLogBuilder& Begin(TStringBuf logType) {
-            Out << "tskv\ttskv_format=" << logType;
-            return *this;
-        }
-
-        TLogBuilder& End() {
-            Out << '\n';
-            return *this;
-        }
-
-        TLogBuilder& Clear() {
-            Out.Clear();
-            return *this;
-        }
-
-        TString& Str() {
-            return Out.Str();
-        }
-    };
-
-}
diff --git a/library/cpp/string_utils/tskv_format/escape.cpp b/library/cpp/string_utils/tskv_format/escape.cpp
deleted file mode 100644
index 3dc78bec8c..0000000000
--- a/library/cpp/string_utils/tskv_format/escape.cpp
+++ /dev/null
@@ -1,112 +0,0 @@
-#include <util/generic/yexception.h>
-#include "escape.h"
-
-namespace NTskvFormat {
-    namespace {
-        const TStringBuf ESCAPE_CHARS("\t\n\r\\\0=\"", 7);
-
-        TString& EscapeImpl(const char* src, size_t len, TString& dst) {
-            TStringBuf srcStr(src, len);
-            size_t noEscapeStart = 0;
-
-            while (noEscapeStart < len) {
-                size_t noEscapeEnd = srcStr.find_first_of(ESCAPE_CHARS, noEscapeStart);
-
-                if (noEscapeEnd == TStringBuf::npos) {
-                    dst.append(src + noEscapeStart, len - noEscapeStart);
-                    break;
-                }
-
-                dst.append(src + noEscapeStart, noEscapeEnd - noEscapeStart);
-
-                switch (src[noEscapeEnd]) {
-                    case '\t':
-                        dst.append(TStringBuf("\\t"));
-                        break;
-                    case '\n':
-                        dst.append(TStringBuf("\\n"));
-                        break;
-                    case '\r':
-                        dst.append(TStringBuf("\\r"));
-                        break;
-                    case '\0':
-                        dst.append(TStringBuf("\\0"));
-                        break;
-                    case '\\':
-                        dst.append(TStringBuf("\\\\"));
-                        break;
-                    case '=':
-                        dst.append(TStringBuf("\\="));
-                        break;
-                    case '"':
-                        dst.append(TStringBuf("\\\""));
-                        break;
-                }
-
-                noEscapeStart = noEscapeEnd + 1;
-            }
-
-            return dst;
-        }
-
-        TString& UnescapeImpl(const char* src, const size_t len, TString& dst) {
-            TStringBuf srcStr(src, len);
-            size_t noEscapeStart = 0;
-
-            while (noEscapeStart < len) {
-                size_t noEscapeEnd = srcStr.find('\\', noEscapeStart);
-
-                if (noEscapeEnd == TStringBuf::npos) {
-                    dst.append(src + noEscapeStart, len - noEscapeStart);
-                    break;
-                }
-
-                dst.append(src + noEscapeStart, noEscapeEnd - noEscapeStart);
-
-                if (noEscapeEnd + 1 >= len) {
-                    throw yexception() << "expected (t|n|r|0|\\|=|\"|) after \\. Got end of line.";
-                }
-
-                switch (src[noEscapeEnd + 1]) {
-                    case 't':
-                        dst.append('\t');
-                        break;
-                    case 'n':
-                        dst.append('\n');
-                        break;
-                    case 'r':
-                        dst.append('\r');
-                        break;
-                    case '0':
-                        dst.append('\0');
-                        break;
-                    case '\\':
-                        dst.append('\\');
-                        break;
-                    case '=':
-                        dst.append('=');
-                        break;
-                    case '"':
-                        dst.append('"');
-                        break;
-                    default:
-                        throw yexception() << "unexpected symbol '" << src[noEscapeEnd + 1] << "' after \\";
-                }
-
-                noEscapeStart = noEscapeEnd + 2;
-            }
-
-            return dst;
-        }
-
-    }
-
-    TString& Escape(const TStringBuf& src, TString& dst) {
-        return EscapeImpl(src.data(), src.size(), dst);
-    }
-
-    TString& Unescape(const TStringBuf& src, TString& dst) {
-        return UnescapeImpl(src.data(), src.size(), dst);
-    }
-
-}
diff --git a/library/cpp/string_utils/tskv_format/escape.h b/library/cpp/string_utils/tskv_format/escape.h
deleted file mode 100644
index 2e3dd02c98..0000000000
--- a/library/cpp/string_utils/tskv_format/escape.h
+++ /dev/null
@@ -1,10 +0,0 @@
-#pragma once
-
-#include <util/generic/strbuf.h>
-#include <util/generic/string.h>
-
-namespace NTskvFormat {
-    TString& Escape(const TStringBuf& src, TString& dst);
-    TString& Unescape(const TStringBuf& src, TString& dst);
-
-}
diff --git a/library/cpp/string_utils/tskv_format/tskv_map.cpp b/library/cpp/string_utils/tskv_format/tskv_map.cpp
deleted file mode 100644
index 99e5f19731..0000000000
--- a/library/cpp/string_utils/tskv_format/tskv_map.cpp
+++ /dev/null
@@ -1,60 +0,0 @@
-#include "tskv_map.h"
-
-namespace {
-    void Split(const TStringBuf& kv, TStringBuf& key, TStringBuf& value, bool& keyHasEscapes) {
-        size_t delimiter = 0;
-        keyHasEscapes = false;
-        for (delimiter = 0; delimiter < kv.size() && kv[delimiter] != '='; ++delimiter) {
-            if (kv[delimiter] == '\\') {
-                ++delimiter;
-                keyHasEscapes = true;
-            }
-        }
-
-        if (delimiter < kv.size()) {
-            key = kv.Head(delimiter);
-            value = kv.Tail(delimiter + 1);
-        } else {
-            throw yexception() << "Incorrect tskv format";
-        }
-    }
-
-    TStringBuf DeserializeTokenToBuffer(const TStringBuf& token, TString& buffer) {
-        size_t tokenStart = buffer.size();
-        NTskvFormat::Unescape(token, buffer);
-        return TStringBuf(buffer).Tail(tokenStart);
-    }
-
-    void DeserializeTokenToString(const TStringBuf& token, TString& result, bool unescape) {
-        if (unescape) {
-            result.clear();
-            NTskvFormat::Unescape(token, result);
-        } else {
-            result = token;
-        }
-
-    }
-}
-
-void NTskvFormat::NDetail::DeserializeKvToStringBufs(const TStringBuf& kv, TStringBuf& key, TStringBuf& value, TString& buffer, bool unescape) {
-    bool keyHasEscapes = false;
-    Split(kv, key, value, keyHasEscapes);
-    if (unescape) {
-        if (keyHasEscapes) {
-            key = DeserializeTokenToBuffer(key, buffer);
-        }
-        if (value.Contains('\\')) {
-            value = DeserializeTokenToBuffer(value, buffer);
-        }
-    }
-}
-
-void NTskvFormat::NDetail::DeserializeKvToStrings(const TStringBuf& kv, TString& key, TString& value, bool unescape) {
-    TStringBuf keyBuf, valueBuf;
-    bool keyHasEscapes = false;
-    Split(kv, keyBuf, valueBuf, keyHasEscapes);
-
-    Y_UNUSED(keyHasEscapes);
-    DeserializeTokenToString(keyBuf, key, unescape);
-    DeserializeTokenToString(valueBuf, value, unescape);
-}
diff --git a/library/cpp/string_utils/tskv_format/tskv_map.h b/library/cpp/string_utils/tskv_format/tskv_map.h
deleted file mode 100644
index 4f4978fcf5..0000000000
--- a/library/cpp/string_utils/tskv_format/tskv_map.h
+++ /dev/null
@@ -1,62 +0,0 @@
-#pragma once
-
-#include "escape.h"
-#include <util/string/cast.h>
-#include <util/string/split.h>
-
-namespace NTskvFormat {
-    namespace NDetail {
-        void DeserializeKvToStringBufs(const TStringBuf& kv, TStringBuf& key, TStringBuf& value, TString& buffer, bool unescape);
-        void DeserializeKvToStrings(const TStringBuf& kv, TString& key, TString& value, bool unescape);
-    }
-
-    template <typename T>
-    TString& SerializeMap(const T& data, TString& result) {
-        result.clear();
-        for (const auto& kv : data) {
-            if (result.size() > 0) {
-                result.push_back('\t');
-            }
-            Escape(ToString(kv.first), result);
-            result.push_back('=');
-            Escape(ToString(kv.second), result);
-        }
-        return result;
-    }
-
-    /**
-     * Deserializing to TStringBuf is faster, just remember that `data'
-     * must not be invalidated while `result' is still in use.
-     */
-    template <typename T>
-    void DeserializeMap(const TStringBuf& data, T& result, TString& buffer, bool unescape = true) {
-        result.clear();
-        buffer.clear();
-        buffer.reserve(data.size());
-        TStringBuf key, value;
-
-        StringSplitter(data.begin(), data.end()).Split('\t').Consume([&](const TStringBuf kv){
-            NDetail::DeserializeKvToStringBufs(kv, key, value, buffer, unescape);
-            result[key] = value;
-        });
-
-        Y_ASSERT(buffer.size() <= data.size());
-    }
-
-    template <typename T>
-    void DeserializeMap(const TStringBuf& data, T& result, bool unescape = true) {
-        if constexpr(std::is_same<typename T::key_type, TStringBuf>::value ||
-            std::is_same<typename T::mapped_type, TStringBuf>::value)
-        {
-            DeserializeMap(data, result, result.DeserializeBuffer, unescape); // we can't unescape values w/o buffer
-            return;
-        }
-        result.clear();
-        TString key, value;
-
-        StringSplitter(data.begin(), data.end()).Split('\t').Consume([&](const TStringBuf kv){
-            NDetail::DeserializeKvToStrings(kv, key, value, unescape);
-            result[key] = value;
-        });
-    }
-}
diff --git a/library/cpp/string_utils/tskv_format/ya.make b/library/cpp/string_utils/tskv_format/ya.make
deleted file mode 100644
index 1283d748b3..0000000000
--- a/library/cpp/string_utils/tskv_format/ya.make
+++ /dev/null
@@ -1,9 +0,0 @@
-LIBRARY()
-
-SRCS(
-    builder.cpp
-    escape.cpp
-    tskv_map.cpp
-)
-
-END()