New config subsystem

src/base/io/Json.cpp

@@ -27,6 +27,13 @@
 #include "rapidjson/document.h"
 
 
+namespace xmrig {
+
+static const rapidjson::Value kNullValue;
+
+}
+
+
 bool xmrig::Json::getBool(const rapidjson::Value &obj, const char *key, bool defaultValue)
 {
     auto i = obj.FindMember(key);
@@ -49,6 +56,39 @@ const char *xmrig::Json::getString(const rapidjson::Value &obj, const char *key,
 }
 
 
+const rapidjson::Value &xmrig::Json::getArray(const rapidjson::Value &obj, const char *key)
+{
+    auto i = obj.FindMember(key);
+    if (i != obj.MemberEnd() && i->value.IsArray()) {
+        return i->value;
+    }
+
+    return kNullValue;
+}
+
+
+const rapidjson::Value &xmrig::Json::getObject(const rapidjson::Value &obj, const char *key)
+{
+    auto i = obj.FindMember(key);
+    if (i != obj.MemberEnd() && i->value.IsObject()) {
+        return i->value;
+    }
+
+    return kNullValue;
+}
+
+
+const rapidjson::Value &xmrig::Json::getValue(const rapidjson::Value &obj, const char *key)
+{
+    auto i = obj.FindMember(key);
+    if (i != obj.MemberEnd()) {
+        return i->value;
+    }
+
+    return kNullValue;
+}
+
+
 int xmrig::Json::getInt(const rapidjson::Value &obj, const char *key, int defaultValue)
 {
     auto i = obj.FindMember(key);
@@ -91,3 +131,9 @@ unsigned xmrig::Json::getUint(const rapidjson::Value &obj, const char *key, unsi
 
     return defaultValue;
 }
+
+
+bool xmrig::JsonReader::isEmpty() const
+{
+    return !m_obj.IsObject() || m_obj.ObjectEmpty();
+}

src/base/io/Json.h

@@ -26,6 +26,7 @@
 #define XMRIG_JSON_H
 
 
+#include "base/kernel/interfaces/IJsonReader.h"
 #include "rapidjson/fwd.h"
 
 
@@ -37,6 +38,9 @@ class Json
 public:
     static bool getBool(const rapidjson::Value &obj, const char *key, bool defaultValue = false);
     static const char *getString(const rapidjson::Value &obj, const char *key, const char *defaultValue = nullptr);
+    static const rapidjson::Value &getArray(const rapidjson::Value &obj, const char *key);
+    static const rapidjson::Value &getObject(const rapidjson::Value &obj, const char *key);
+    static const rapidjson::Value &getValue(const rapidjson::Value &obj, const char *key);
     static int getInt(const rapidjson::Value &obj, const char *key, int defaultValue = 0);
     static int64_t getInt64(const rapidjson::Value &obj, const char *key, int64_t defaultValue = 0);
     static uint64_t getUint64(const rapidjson::Value &obj, const char *key, uint64_t defaultValue = 0);
@@ -47,6 +51,28 @@ public:
 };
 
 
+class JsonReader : public IJsonReader
+{
+public:
+    inline JsonReader(const rapidjson::Value &obj) : m_obj(obj) {}
+
+    inline bool getBool(const char *key, bool defaultValue = false) const override                   { return Json::getBool(m_obj, key, defaultValue); }
+    inline const char *getString(const char *key, const char *defaultValue = nullptr) const override { return Json::getString(m_obj, key, defaultValue); }
+    inline const rapidjson::Value &getArray(const char *key) const override                          { return Json::getArray(m_obj, key); }
+    inline const rapidjson::Value &getObject(const char *key) const override                         { return Json::getObject(m_obj, key); }
+    inline const rapidjson::Value &getValue(const char *key) const override                          { return Json::getValue(m_obj, key); }
+    inline int getInt(const char *key, int defaultValue = 0) const override                          { return Json::getInt(m_obj, key, defaultValue); }
+    inline int64_t getInt64(const char *key, int64_t defaultValue = 0) const override                { return Json::getInt64(m_obj, key, defaultValue); }
+    inline uint64_t getUint64(const char *key, uint64_t defaultValue = 0) const override             { return Json::getUint64(m_obj, key, defaultValue); }
+    inline unsigned getUint(const char *key, unsigned defaultValue = 0) const override               { return Json::getUint(m_obj, key, defaultValue); }
+
+    bool isEmpty() const override;
+
+private:
+    const rapidjson::Value &m_obj;
+};
+
+
 } /* namespace xmrig */
 
 

src/base/io/JsonChain.cpp

@@ -0,0 +1,201 @@
+/* XMRig
+ * Copyright 2010      Jeff Garzik <jgarzik@pobox.com>
+ * Copyright 2012-2014 pooler      <pooler@litecoinpool.org>
+ * Copyright 2014      Lucas Jones <https://github.com/lucasjones>
+ * Copyright 2014-2016 Wolf9466    <https://github.com/OhGodAPet>
+ * Copyright 2016      Jay D Dee   <jayddee246@gmail.com>
+ * Copyright 2017-2018 XMR-Stak    <https://github.com/fireice-uk>, <https://github.com/psychocrypt>
+ * Copyright 2018-2019 SChernykh   <https://github.com/SChernykh>
+ * Copyright 2016-2019 XMRig       <https://github.com/xmrig>, <support@xmrig.com>
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   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
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#include "base/io/Json.h"
+#include "base/io/JsonChain.h"
+#include "base/io/log/Log.h"
+#include "rapidjson/error/en.h"
+
+
+namespace xmrig {
+
+static const rapidjson::Value kNullValue;
+
+}
+
+
+xmrig::JsonChain::JsonChain()
+{
+}
+
+
+bool xmrig::JsonChain::add(rapidjson::Document &&doc)
+{
+    if (doc.HasParseError() || !doc.IsObject() || doc.ObjectEmpty()) {
+        return false;
+    }
+
+    m_chain.push_back(std::move(doc));
+
+    return true;
+}
+
+
+bool xmrig::JsonChain::addFile(const char *fileName)
+{
+    using namespace rapidjson;
+    Document doc;
+    if (Json::get(fileName, doc)) {
+        m_fileName = fileName;
+
+        return add(std::move(doc));
+    }
+
+    if (doc.HasParseError()) {
+        LOG_ERR("%s<offset:%zu>: \"%s\"", fileName, doc.GetErrorOffset(), GetParseError_En(doc.GetParseError()));
+    }
+    else {
+        LOG_ERR("unable to open \"%s\".", fileName);
+    }
+
+    return false;
+}
+
+
+bool xmrig::JsonChain::addRaw(const char *json)
+{
+    using namespace rapidjson;
+    Document doc;
+    doc.Parse<kParseCommentsFlag | kParseTrailingCommasFlag>(json);
+
+    return add(std::move(doc));
+}
+
+
+bool xmrig::JsonChain::getBool(const char *key, bool defaultValue) const
+{
+    for (auto it = m_chain.rbegin(); it != m_chain.rend(); ++it) {
+        auto i = it->FindMember(key);
+        if (i != it->MemberEnd() && i->value.IsBool()) {
+            return i->value.GetBool();
+        }
+    }
+
+    return defaultValue;
+}
+
+
+const char *xmrig::JsonChain::getString(const char *key, const char *defaultValue) const
+{
+    for (auto it = m_chain.rbegin(); it != m_chain.rend(); ++it) {
+        auto i = it->FindMember(key);
+        if (i != it->MemberEnd() && i->value.IsString()) {
+            return i->value.GetString();
+        }
+    }
+
+    return defaultValue;
+}
+
+
+const rapidjson::Value &xmrig::JsonChain::getArray(const char *key) const
+{
+    for (auto it = m_chain.rbegin(); it != m_chain.rend(); ++it) {
+        auto i = it->FindMember(key);
+        if (i != it->MemberEnd() && i->value.IsArray()) {
+            return i->value;
+        }
+    }
+
+    return kNullValue;
+}
+
+
+const rapidjson::Value &xmrig::JsonChain::getObject(const char *key) const
+{
+    for (auto it = m_chain.rbegin(); it != m_chain.rend(); ++it) {
+        auto i = it->FindMember(key);
+        if (i != it->MemberEnd() && i->value.IsObject()) {
+            return i->value;
+        }
+    }
+
+    return kNullValue;
+}
+
+
+const rapidjson::Value &xmrig::JsonChain::getValue(const char *key) const
+{
+    for (auto it = m_chain.rbegin(); it != m_chain.rend(); ++it) {
+        auto i = it->FindMember(key);
+        if (i != it->MemberEnd()) {
+            return i->value;
+        }
+    }
+
+    return kNullValue;
+}
+
+
+int xmrig::JsonChain::getInt(const char *key, int defaultValue) const
+{
+    for (auto it = m_chain.rbegin(); it != m_chain.rend(); ++it) {
+        auto i = it->FindMember(key);
+        if (i != it->MemberEnd() && i->value.IsInt()) {
+            return i->value.GetInt();
+        }
+    }
+
+    return defaultValue;
+}
+
+
+int64_t xmrig::JsonChain::getInt64(const char *key, int64_t defaultValue) const
+{
+    for (auto it = m_chain.rbegin(); it != m_chain.rend(); ++it) {
+        auto i = it->FindMember(key);
+        if (i != it->MemberEnd() && i->value.IsInt64()) {
+            return i->value.GetInt64();
+        }
+    }
+
+    return defaultValue;
+}
+
+
+uint64_t xmrig::JsonChain::getUint64(const char *key, uint64_t defaultValue) const
+{
+    for (auto it = m_chain.rbegin(); it != m_chain.rend(); ++it) {
+        auto i = it->FindMember(key);
+        if (i != it->MemberEnd() && i->value.IsUint64()) {
+            return i->value.GetUint64();
+        }
+    }
+
+    return defaultValue;
+}
+
+
+unsigned xmrig::JsonChain::getUint(const char *key, unsigned defaultValue) const
+{
+    for (auto it = m_chain.rbegin(); it != m_chain.rend(); ++it) {
+        auto i = it->FindMember(key);
+        if (i != it->MemberEnd() && i->value.IsUint()) {
+            return i->value.GetUint();
+        }
+    }
+
+    return defaultValue;
+}

src/base/io/JsonChain.h

@@ -0,0 +1,74 @@
+/* XMRig
+ * Copyright 2010      Jeff Garzik <jgarzik@pobox.com>
+ * Copyright 2012-2014 pooler      <pooler@litecoinpool.org>
+ * Copyright 2014      Lucas Jones <https://github.com/lucasjones>
+ * Copyright 2014-2016 Wolf9466    <https://github.com/OhGodAPet>
+ * Copyright 2016      Jay D Dee   <jayddee246@gmail.com>
+ * Copyright 2017-2018 XMR-Stak    <https://github.com/fireice-uk>, <https://github.com/psychocrypt>
+ * Copyright 2018-2019 SChernykh   <https://github.com/SChernykh>
+ * Copyright 2016-2019 XMRig       <https://github.com/xmrig>, <support@xmrig.com>
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   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
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef XMRIG_JSONCHAIN_H
+#define XMRIG_JSONCHAIN_H
+
+
+#include <vector>
+
+
+#include "base/kernel/interfaces/IJsonReader.h"
+#include "base/tools/String.h"
+#include "rapidjson/document.h"
+
+
+namespace xmrig {
+
+
+class JsonChain : public IJsonReader
+{
+public:
+    JsonChain();
+
+    bool add(rapidjson::Document &&doc);
+    bool addFile(const char *fileName);
+    bool addRaw(const char *json);
+
+    inline const String &fileName() const { return m_fileName; }
+    inline size_t size() const            { return m_chain.size(); }
+
+protected:
+    inline bool isEmpty() const override  { return m_chain.empty(); }
+
+    bool getBool(const char *key, bool defaultValue = false) const override;
+    const char *getString(const char *key, const char *defaultValue = nullptr) const override;
+    const rapidjson::Value &getArray(const char *key) const override;
+    const rapidjson::Value &getObject(const char *key) const override;
+    const rapidjson::Value &getValue(const char *key) const override;
+    int getInt(const char *key, int defaultValue = 0) const override;
+    int64_t getInt64(const char *key, int64_t defaultValue = 0) const override;
+    uint64_t getUint64(const char *key, uint64_t defaultValue = 0) const override;
+    unsigned getUint(const char *key, unsigned defaultValue = 0) const override;
+
+private:
+    std::vector<rapidjson::Document> m_chain;
+    String m_fileName;
+};
+
+
+} /* namespace xmrig */
+
+
+#endif /* XMRIG_JSONCHAIN_H */

src/base/io/Json_win.cpp

@@ -102,7 +102,7 @@ bool xmrig::Json::save(const char *fileName, const rapidjson::Document &doc)
         return false;
     }
 #   elif defined(__GNUC__)
-    const int fd = _wopen(toUtf16(fileName).c_str(), _O_WRONLY | _O_BINARY | _O_TRUNC);
+    const int fd = _wopen(toUtf16(fileName).c_str(), _O_WRONLY | _O_BINARY | _O_CREAT | _O_TRUNC);
     if (fd == -1) {
         return false;
     }