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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /security/nss/gtests/nss_bogo_shim/config.h
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'security/nss/gtests/nss_bogo_shim/config.h')
-rw-r--r--security/nss/gtests/nss_bogo_shim/config.h93
1 files changed, 93 insertions, 0 deletions
diff --git a/security/nss/gtests/nss_bogo_shim/config.h b/security/nss/gtests/nss_bogo_shim/config.h
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+++ b/security/nss/gtests/nss_bogo_shim/config.h
@@ -0,0 +1,93 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+// Generic command line flags system for NSS BoGo shim. This class
+// could actually in principle handle other programs. The flags are
+// defined in the consumer code.
+
+#ifndef config_h_
+#define config_h_
+
+#include <cassert>
+
+#include <iostream>
+#include <map>
+#include <memory>
+#include <queue>
+#include <string>
+#include <typeinfo>
+
+// Abstract base class for a given config flag.
+class ConfigEntryBase {
+ public:
+ ConfigEntryBase(const std::string& name, const std::string& type)
+ : name_(name), type_(type) {}
+
+ virtual ~ConfigEntryBase() {}
+
+ const std::string& type() const { return type_; }
+ virtual bool Parse(std::queue<const char*>* args) = 0;
+
+ protected:
+ bool ParseInternal(std::queue<const char*>* args, std::string* out);
+ bool ParseInternal(std::queue<const char*>* args, int* out);
+ bool ParseInternal(std::queue<const char*>* args, bool* out);
+
+ const std::string name_;
+ const std::string type_;
+};
+
+// Template specializations for the concrete flag types.
+template <typename T>
+class ConfigEntry : public ConfigEntryBase {
+ public:
+ ConfigEntry(const std::string& name, T init)
+ : ConfigEntryBase(name, typeid(T).name()), value_(init) {}
+ T get() const { return value_; }
+
+ bool Parse(std::queue<const char*>* args) {
+ return ParseInternal(args, &value_);
+ }
+
+ private:
+ T value_;
+};
+
+// The overall configuration (I.e., the total set of flags).
+class Config {
+ public:
+ enum Status { kOK, kUnknownFlag, kMalformedArgument, kMissingValue };
+
+ Config() : entries_() {}
+
+ template <typename T>
+ void AddEntry(const std::string& name, T init) {
+ entries_[name] = std::unique_ptr<ConfigEntryBase>(
+ new ConfigEntry<T>(name, init));
+ }
+
+ Status ParseArgs(int argc, char** argv);
+
+ template <typename T>
+ T get(const std::string& key) const {
+ auto e = entry(key);
+ assert(e->type() == typeid(T).name());
+ return static_cast<const ConfigEntry<T>*>(e)->get();
+ }
+
+ private:
+ static std::string XformFlag(const std::string& arg);
+
+ std::map<std::string, std::unique_ptr<ConfigEntryBase>> entries_;
+
+ const ConfigEntryBase* entry(const std::string& key) const {
+ auto e = entries_.find(key);
+ if (e == entries_.end()) return nullptr;
+ return e->second.get();
+ }
+};
+
+#endif // config_h_