1 files changed, 142 insertions, 0 deletions
diff --git a/src/libstate/libstate.h b/src/libstate/libstate.h
new file mode 100644
index 000000000..74d3d8ef3
--- /dev/null
+++ b/src/libstate/libstate.h
@@ -0,0 +1,142 @@
+/*************************************************
+* Library Internal/Global State Header File      *
+* (C) 1999-2008 Jack Lloyd                       *
+*************************************************/
+
+#ifndef BOTAN_LIB_STATE_H__
+#define BOTAN_LIB_STATE_H__
+
+#include <botan/base.h>
+#include <botan/init.h>
+#include <string>
+#include <vector>
+#include <map>
+
+namespace Botan {
+
+/*************************************************
+* Global State Container Base                    *
+*************************************************/
+class BOTAN_DLL Library_State
+   {
+   public:
+      Library_State();
+      ~Library_State();
+
+      void initialize(const InitializerOptions&, Modules&);
+
+      void load(Modules&);
+
+      void add_engine(class Engine*);
+
+      class BOTAN_DLL Engine_Iterator
+         {
+         public:
+            class Engine* next();
+            Engine_Iterator(const Library_State& l) : lib(l) { n = 0; }
+         private:
+            const Library_State& lib;
+            u32bit n;
+         };
+      friend class Engine_Iterator;
+
+      Allocator* get_allocator(const std::string& = "") const;
+      void add_allocator(Allocator*);
+      void set_default_allocator(const std::string&);
+
+      /**
+      * Get a parameter value as std::string.
+      * @param section the section of the desired key
+      * @param key the desired keys name
+      * @result the value of the parameter
+      */
+      std::string get(const std::string& section,
+                      const std::string& key) const;
+
+      /**
+      * Check whether a certain parameter is set
+      * or not.
+      * @param section the section of the desired key
+      * @param key the desired keys name
+      * @result true if the parameters value is set,
+      * false otherwise
+      */
+      bool is_set(const std::string& section, const std::string& key) const;
+
+        /**
+        * Set a configuration parameter.
+        * @param section the section of the desired key
+        * @param key the desired keys name
+        * @param overwrite if set to true, the parameters value
+        * will be overwritten even if it is already set, otherwise
+        * no existing values will be overwritten.
+        */
+      void set(const std::string& section, const std::string& key,
+                 const std::string& value, bool overwrite = true);
+
+        /**
+        * Get a parameters value out of the "conf" section (
+        * referred to as option).
+        * @param key the desired keys name
+        */
+      std::string option(const std::string& key) const;
+
+      /**
+      * Set an option.
+      * @param key the key of the option to set
+      * @param value the value to set
+      */
+      /**
+      * Set an option.
+      * @param key the key of the option to set
+      * @param value the value to set
+      */
+      void set_option(const std::string key, const std::string& value);
+
+      /**
+      * Add a parameter value to the "alias" section.
+      * @param key the name of the parameter which shall have a new alias
+      * @param value the new alias
+      */
+      void add_alias(const std::string&, const std::string&);
+
+      /**
+      * Resolve an alias.
+      * @param alias the alias to resolve.
+      * @return what the alias stands for
+      */
+      std::string deref_alias(const std::string&) const;
+
+      class Mutex* get_mutex() const;
+   private:
+      void load_default_config();
+
+      Library_State(const Library_State&) {}
+      Library_State& operator=(const Library_State&) { return (*this); }
+
+      class Engine* get_engine_n(u32bit) const;
+
+      class Mutex_Factory* mutex_factory;
+
+      std::map<std::string, std::string> config;
+      class Mutex* config_lock;
+
+      class Mutex* allocator_lock;
+      std::map<std::string, Allocator*> alloc_factory;
+      mutable Allocator* cached_default_allocator;
+      std::vector<Allocator*> allocators;
+
+      class Mutex* engine_lock;
+      std::vector<class Engine*> engines;
+   };
+
+/*************************************************
+* Global State                                   *
+*************************************************/
+BOTAN_DLL Library_State& global_state();
+BOTAN_DLL void set_global_state(Library_State*);
+BOTAN_DLL Library_State* swap_global_state(Library_State*);
+
+}
+
+#endif