forked from 0ad/0ad
janwas
c817566222
replaced all (*) CStr / CStrW by-value params with const reference. hoo boy. please always perform this optimization (actually standard idiom) when writing the code - it takes little work, tells the next guy that the string won't be modified, and makes a large performance difference. (* where possible.. a few require other changes and will follow later) This was SVN commit r4151.
142 lines
4.3 KiB
C++
142 lines
4.3 KiB
C++
/*
|
|
CConfigDB - Load, access and store configuration variables
|
|
|
|
TDD : http://forums.wildfiregames.com/0ad/index.php?showtopic=1125
|
|
AUTHOR : Simon Brenner <simon@wildfiregames.com>, <simon.brenner@home.se>
|
|
OVERVIEW:
|
|
|
|
JavaScript:
|
|
All the javascript interfaces are provided through the global object
|
|
g_ConfigDB.
|
|
|
|
g_ConfigDB Properties:
|
|
system:
|
|
All CFG_SYSTEM values are linked to properties of this object.
|
|
a=g_ConfigDB.system.foo; is equivalent to C++ code
|
|
g_ConfigDB.GetValue(CFG_SYSTEM, "foo");
|
|
mod: Ditto, but linked to CFG_MOD
|
|
user: Ditto, but linked to CFG_USER
|
|
|
|
g_ConfigDB Functions: None so far
|
|
|
|
ConfigNamespace Functions: (applicable to the system, mod or user
|
|
properties of g_ConfigDB)
|
|
|
|
boolean WriteFile(boolean useVFS, string path):
|
|
JS interface to g_ConfigDB.WriteFile - should work exactly the
|
|
same.
|
|
|
|
boolean Reload() => g_ConfigDB.Reload()
|
|
void SetFile() => g_ConfigDB.SetConfigFile()
|
|
*/
|
|
|
|
#ifndef _ps_ConfigDB_H
|
|
#define _ps_ConfigDB_H
|
|
|
|
#include "Pyrogenesis.h"
|
|
#include "Parser.h"
|
|
#include "CStr.h"
|
|
#include "Singleton.h"
|
|
|
|
// Namespace priorities: User supersedes mod supersedes system.
|
|
// Command-line arguments override everything.
|
|
|
|
enum EConfigNamespace
|
|
{
|
|
CFG_SYSTEM,
|
|
CFG_MOD,
|
|
CFG_USER,
|
|
CFG_COMMAND,
|
|
CFG_LAST
|
|
};
|
|
|
|
typedef CParserValue CConfigValue;
|
|
typedef std::vector<CParserValue> CConfigValueSet;
|
|
|
|
#define g_ConfigDB CConfigDB::GetSingleton()
|
|
|
|
class CConfigDB: public Singleton<CConfigDB>
|
|
{
|
|
static std::map <CStr, CConfigValueSet> m_Map[];
|
|
static CStr m_ConfigFile[];
|
|
static bool m_UseVFS[];
|
|
|
|
public:
|
|
// NOTE: Construct the Singleton Object *after* JavaScript init, so that
|
|
// the JS interface can be registered.
|
|
CConfigDB();
|
|
|
|
// GetValue()
|
|
// Attempt to find a config variable with the given name; will search all
|
|
// namespaces from system up to the specified namespace.
|
|
//
|
|
// Returns a pointer to the config value structure for the variable, or
|
|
// NULL if such a variable could not be found
|
|
CConfigValue *GetValue(EConfigNamespace ns, const CStr& name);
|
|
|
|
// GetValues()
|
|
// Attempt to retrieve a vector of values corresponding to the given setting;
|
|
// will search all namespaces from system up to the specified namespace.
|
|
//
|
|
// Returns a pointer to the vector, or NULL if the setting could not be found.
|
|
CConfigValueSet *GetValues(EConfigNamespace ns, const CStr& name);
|
|
|
|
// CreateValue()
|
|
// Create a new config value in the specified namespace. If such a
|
|
// variable already exists, the old value is returned and the effect is
|
|
// exactly the same as that of GetValue()
|
|
//
|
|
// Returns a pointer to the value of the newly created config variable, or
|
|
// that of the already existing config variable.
|
|
CConfigValue *CreateValue(EConfigNamespace ns, const CStr& name);
|
|
|
|
// SetConfigFile()
|
|
// Set the path to the config file used to populate the specified namespace
|
|
// Note that this function does not actually load the config file. Use
|
|
// the Reload() method if you want to read the config file at the same time.
|
|
//
|
|
// 'path': The path to the config file.
|
|
// VFS: relative to VFS root
|
|
// non-VFS: relative to current working directory (binaries/data/)
|
|
// 'useVFS': true if the path is a VFS path, false if it is a real path
|
|
void SetConfigFile(EConfigNamespace ns, bool useVFS, const CStr& path);
|
|
|
|
// Reload()
|
|
// Reload the config file associated with the specified config namespace
|
|
// (the last config file path set with SetConfigFile)
|
|
//
|
|
// Returns:
|
|
// true: if the reload succeeded,
|
|
// false: if the reload failed
|
|
bool Reload(EConfigNamespace);
|
|
|
|
// WriteFile()
|
|
// Write the current state of the specified config namespace to the file
|
|
// specified by 'path'
|
|
//
|
|
// Returns:
|
|
// true: if the config namespace was successfully written to the file
|
|
// false: if an error occured
|
|
bool WriteFile(EConfigNamespace ns, bool useVFS, const CStr& path);
|
|
};
|
|
|
|
|
|
// stores the value of the given key into <destination>. this quasi-template
|
|
// convenience wrapper on top of CConfigValue::Get* simplifies user code and
|
|
// avoids "assignment within condition expression" warnings.
|
|
#define CFG_GET_SYS_VAL(name, type, destination)\
|
|
STMT(\
|
|
CConfigValue* val = g_ConfigDB.GetValue(CFG_SYSTEM, name);\
|
|
if(val)\
|
|
val->Get##type(destination);\
|
|
)
|
|
#define CFG_GET_USER_VAL(name, type, destination)\
|
|
STMT(\
|
|
CConfigValue* val = g_ConfigDB.GetValue(CFG_USER, name);\
|
|
if(val)\
|
|
val->Get##type(destination);\
|
|
)
|
|
|
|
|
|
#endif
|