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4cac7d2d30
Basic implementation of the system path class and several fuctions to retrieve information about the running system.
317 lines
13 KiB
C++
317 lines
13 KiB
C++
#ifndef _LIBRARY_SYSENV_HPP_
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#define _LIBRARY_SYSENV_HPP_
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// ------------------------------------------------------------------------------------------------
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#include "Base/Shared.hpp"
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#include "Base/Buffer.hpp"
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// ------------------------------------------------------------------------------------------------
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namespace SqMod {
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/* ------------------------------------------------------------------------------------------------
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* This class provides access to environment variables and some general system information.
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*/
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struct SysEnv
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{
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/* --------------------------------------------------------------------------------------------
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* Default constructor. (disabled)
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*/
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SysEnv() = delete;
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/* --------------------------------------------------------------------------------------------
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* Copy constructor. (disabled)
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*/
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SysEnv(const SysEnv &) = delete;
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/* --------------------------------------------------------------------------------------------
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* Move constructor. (disabled)
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*/
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SysEnv(SysEnv &&) = delete;
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/* --------------------------------------------------------------------------------------------
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* Destructor. (disabled)
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*/
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~SysEnv() = delete;
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/* --------------------------------------------------------------------------------------------
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* Copy assignment operator. (disabled)
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*/
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SysEnv & operator = (const SysEnv &) = delete;
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/* --------------------------------------------------------------------------------------------
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* Move assignment operator. (disabled)
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*/
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SysEnv & operator = (SysEnv &&) = delete;
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public:
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/* --------------------------------------------------------------------------------------------
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* Returns true if an environment variable with the given name is defined.
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*/
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static bool Has(CCStr name);
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/* --------------------------------------------------------------------------------------------
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* Returns true if an environment variable with the given name is defined.
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*/
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static bool Has(const String & name);
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/* --------------------------------------------------------------------------------------------
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* Returns the value of the environment variable with the given name.
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* If the environment variable is undefined, returns fallback value instead.
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*/
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static void Get(Buffer & b, CCStr name, CCStr fallback);
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/* --------------------------------------------------------------------------------------------
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* Returns the value of the environment variable with the given name.
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*/
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static Buffer Get(CCStr name)
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{
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return Get(name, nullptr);
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}
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/* --------------------------------------------------------------------------------------------
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* Returns the value of the environment variable with the given name.
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*/
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static Buffer Get(const String & name)
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{
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return Get(name.c_str(), nullptr);
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}
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/* --------------------------------------------------------------------------------------------
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* Returns the value of the environment variable with the given name.
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* If the environment variable is undefined, returns fallback value instead.
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*/
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static Buffer Get(CCStr name, CCStr fallback);
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/* --------------------------------------------------------------------------------------------
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* Returns the value of the environment variable with the given name.
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* If the environment variable is undefined, returns fallback value instead.
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*/
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static Buffer Get(CCStr name, const String & fallback)
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{
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return Get(name, fallback.c_str());
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}
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/* --------------------------------------------------------------------------------------------
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* Returns the value of the environment variable with the given name.
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* If the environment variable is undefined, returns fallback value instead.
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*/
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static Buffer Get(const String & name, CCStr fallback)
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{
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return Get(name.c_str(), fallback);
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}
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/* --------------------------------------------------------------------------------------------
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* Returns the value of the environment variable with the given name.
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* If the environment variable is undefined, returns fallback value instead.
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*/
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static Buffer Get(const String & name, const String & fallback)
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{
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return Get(name.c_str(), fallback.c_str());
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}
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/* --------------------------------------------------------------------------------------------
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* Sets the environment variable with the given name to the given value.
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*/
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static bool Set(CCStr name, CCStr value);
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/* --------------------------------------------------------------------------------------------
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* Sets the environment variable with the given name to the given value.
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*/
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static bool Set(const String & name, const String & value);
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/* --------------------------------------------------------------------------------------------
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* Returns the operating system name.
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*/
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static String OSName();
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/* --------------------------------------------------------------------------------------------
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* Returns the operating system name in a more "user-friendly" way. This only affects Windows.
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*/
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static String OSDisplayName();
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/* --------------------------------------------------------------------------------------------
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* Returns the operating system version.
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*/
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static String OSVersion();
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/* --------------------------------------------------------------------------------------------
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* Returns the operating system architecture.
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*/
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static String OSArchitecture();
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/* --------------------------------------------------------------------------------------------
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* Returns the node (or host) name.
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*/
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static String NodeName();
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/* --------------------------------------------------------------------------------------------
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* Returns the number of processors installed in the system. If the number of processors
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* cannot be determined, returns 1.
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*/
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static Uint32 ProcessorCount();
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protected:
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/* --------------------------------------------------------------------------------------------
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* Make sure that the path in the specified buffer contains a trailing slash.
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*/
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static void TerminatePath(Buffer & b);
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/* --------------------------------------------------------------------------------------------
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* Expands all environment variables contained in the string.
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*/
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static void ExpandVars(Buffer & b, CCStr pos, CCStr end);
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/* --------------------------------------------------------------------------------------------
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* Expands all environment variables contained in the path. Uses the Unix variable style.
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*/
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static void ExpandPath(Buffer & b, CCStr pos, CCStr end);
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public:
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/* --------------------------------------------------------------------------------------------
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* Expands all environment variables contained in the string.
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*/
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static void ExpandVars(Buffer & b, CCStr str);
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/* --------------------------------------------------------------------------------------------
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* Expands all environment variables contained in the string.
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*/
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static void ExpandVars(Buffer & b, const String & str);
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/* --------------------------------------------------------------------------------------------
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* Expands all environment variables contained in the string.
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*/
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static Buffer ExpandVars(CCStr str);
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/* --------------------------------------------------------------------------------------------
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* Expands all environment variables contained in the string.
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*/
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static Buffer ExpandVars(const String & str);
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/* --------------------------------------------------------------------------------------------
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* Expands all environment variables contained in the path. Uses the Unix variable style.
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*/
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static void ExpandPath(Buffer & b, CCStr path);
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/* --------------------------------------------------------------------------------------------
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* Expands all environment variables contained in the path. Uses the Unix variable style.
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*/
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static void ExpandPath(Buffer & b, const String & path);
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/* --------------------------------------------------------------------------------------------
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* Expands all environment variables contained in the path. Uses the Unix variable style.
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*/
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static Buffer ExpandPath(CCStr path);
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/* --------------------------------------------------------------------------------------------
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* Expands all environment variables contained in the path. Uses the Unix variable style.
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*/
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static Buffer ExpandPath(const String & path);
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/* --------------------------------------------------------------------------------------------
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* Obtain the current working directory within the specified buffer.
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*/
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static void WorkingDir(Buffer & b);
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/* --------------------------------------------------------------------------------------------
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* Obtain the current working directory within a buffer and return it.
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*/
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static Buffer WorkingDir();
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/* --------------------------------------------------------------------------------------------
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* Obtain the user's home directory within the specified buffer.
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*/
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static void HomeDir(Buffer & b);
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/* --------------------------------------------------------------------------------------------
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* Obtain the user's home directory within a buffer and return it.
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*/
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static Buffer HomeDir();
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/* --------------------------------------------------------------------------------------------
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* Obtain the user's config directory within the specified buffer.
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*/
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static void ConfigHomeDir(Buffer & b);
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/* --------------------------------------------------------------------------------------------
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* Obtain the user's config directory within a buffer and return it.
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*/
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static Buffer ConfigHomeDir();
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/* --------------------------------------------------------------------------------------------
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* Obtain the user's data directory within the specified buffer.
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*/
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static void DataHomeDir(Buffer & b);
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/* --------------------------------------------------------------------------------------------
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* Obtain the user's data directory within a buffer and return it.
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*/
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static Buffer DataHomeDir();
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/* --------------------------------------------------------------------------------------------
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* Obtain the user's temporary directory within the specified buffer.
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*/
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static void TempHomeDir(Buffer & b);
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/* --------------------------------------------------------------------------------------------
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* Obtain the user's temporary directory within a buffer and return it.
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*/
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static Buffer TempHomeDir();
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/* --------------------------------------------------------------------------------------------
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* Obtain the user's cache directory within the specified buffer.
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*/
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static void CacheHomeDir(Buffer & b);
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/* --------------------------------------------------------------------------------------------
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* Obtain the user's cache directory within a buffer and return it.
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*/
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static Buffer CacheHomeDir();
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/* --------------------------------------------------------------------------------------------
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* Obtain the temporary directory within the specified buffer.
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*/
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static void TempDir(Buffer & b);
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/* --------------------------------------------------------------------------------------------
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* Obtain the temporary directory within a buffer and return it.
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*/
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static Buffer TempDir();
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/* --------------------------------------------------------------------------------------------
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* Obtain the systemwide config directory within the specified buffer.
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*/
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static void ConfigDir(Buffer & b);
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/* --------------------------------------------------------------------------------------------
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* Obtain the systemwide config directory within a buffer and return it.
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*/
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static Buffer ConfigDir();
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/* --------------------------------------------------------------------------------------------
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* Obtain the system directory within the specified buffer.
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*/
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static void SystemDir(Buffer & b);
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/* --------------------------------------------------------------------------------------------
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* Obtain the system directory within a buffer and return it.
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*/
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static Buffer SystemDir();
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/* --------------------------------------------------------------------------------------------
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* Obtain the null directory within the specified buffer.
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*/
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static void NullDir(Buffer & b);
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/* --------------------------------------------------------------------------------------------
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* Obtain the null directory within a buffer and return it.
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*/
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static Buffer NullDir();
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};
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} // Namespace:: SqMod
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#endif // _LIBRARY_SYSENV_HPP_
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