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ACE_Configuration_Win32Registry Class Reference

The win32 registry implementation of a configuration database. More...

#include <Configuration.h>

Inheritance diagram for ACE_Configuration_Win32Registry:
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Collaboration diagram for ACE_Configuration_Win32Registry:
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Public Member Functions

 ACE_Configuration_Win32Registry (HKEY hKey)
 
virtual ~ACE_Configuration_Win32Registry (void)
 Destructor. More...
 
virtual int open_section (const ACE_Configuration_Section_Key &base, const ACE_TCHAR *sub_section, int create, ACE_Configuration_Section_Key &result)
 
virtual int remove_section (const ACE_Configuration_Section_Key &key, const ACE_TCHAR *sub_section, bool recursive)
 Removes a named section. More...
 
virtual int enumerate_values (const ACE_Configuration_Section_Key &key, int index, ACE_TString &name, VALUETYPE &type)
 
virtual int enumerate_sections (const ACE_Configuration_Section_Key &key, int index, ACE_TString &name)
 
virtual int set_string_value (const ACE_Configuration_Section_Key &key, const ACE_TCHAR *name, const ACE_TString &value)
 Sets a string-typed value. More...
 
virtual int set_integer_value (const ACE_Configuration_Section_Key &key, const ACE_TCHAR *name, u_int value)
 Sets a integer-typed value. More...
 
virtual int set_binary_value (const ACE_Configuration_Section_Key &key, const ACE_TCHAR *name, const void *data, size_t length)
 Sets a binary-typed value. More...
 
virtual int get_string_value (const ACE_Configuration_Section_Key &key, const ACE_TCHAR *name, ACE_TString &value)
 Gets a string-typed value. More...
 
virtual int get_integer_value (const ACE_Configuration_Section_Key &key, const ACE_TCHAR *name, u_int &value)
 Gets an integer-typed value. More...
 
virtual int get_binary_value (const ACE_Configuration_Section_Key &key, const ACE_TCHAR *name, void *&data, size_t &length)
 Gets a binary-typed value. More...
 
virtual int find_value (const ACE_Configuration_Section_Key &key, const ACE_TCHAR *name, VALUETYPE &type)
 
virtual int remove_value (const ACE_Configuration_Section_Key &key, const ACE_TCHAR *name)
 Removes the the value name from key. returns non zero on error. More...
 
virtual bool operator== (const ACE_Configuration_Win32Registry &rhs) const
 
virtual bool operator!= (const ACE_Configuration_Win32Registry &rhs) const
 
- Public Member Functions inherited from ACE_Configuration
virtual ~ACE_Configuration (void)
 Destructor. More...
 
virtual const
ACE_Configuration_Section_Key
root_section (void) const
 Obtain a reference to the root section of this configuration. More...
 
int expand_path (const ACE_Configuration_Section_Key &key, const ACE_TString &path_in, ACE_Configuration_Section_Key &key_out, int create=1)
 
bool operator== (const ACE_Configuration &rhs) const
 
bool operator!= (const ACE_Configuration &rhs) const
 

Static Public Member Functions

static HKEY resolve_key (HKEY hKey, const ACE_TCHAR *path, int create=1)
 

Protected Member Functions

int load_key (const ACE_Configuration_Section_Key &key, HKEY &hKey)
 Gets the HKEY for a configuration section. More...
 
 ACE_Configuration_Win32Registry (void)
 
 ACE_Configuration_Win32Registry (const ACE_Configuration_Win32Registry &rhs)
 
ACE_Configuration_Win32Registryoperator= (const ACE_Configuration_Win32Registry &rhs)
 
- Protected Member Functions inherited from ACE_Configuration
 ACE_Configuration (void)
 Default ctor. More...
 
ACE_Section_Key_Internalget_internal_key (const ACE_Configuration_Section_Key &key)
 Resolves the internal key from a section key. More...
 
int validate_name (const ACE_TCHAR *name, int allow_path=0)
 
int validate_value_name (const ACE_TCHAR *name)
 
 ACE_Configuration (const ACE_Configuration &rhs)
 
ACE_Configurationoperator= (const ACE_Configuration &rhs)
 

Additional Inherited Members

- Public Types inherited from ACE_Configuration
enum  VALUETYPE { STRING, INTEGER, BINARY, INVALID }
 Enumeration for the various types of values we can store. More...
 
- Static Public Attributes inherited from ACE_Configuration
static ACE_TCHAR NULL_String_ = '\0'
 
- Protected Attributes inherited from ACE_Configuration
ACE_Configuration_Section_Key root_
 

Detailed Description

The win32 registry implementation of a configuration database.

The win32 implementation basically makes calls through to the registry functions. The API is very similar so very little work must be done

Constructor & Destructor Documentation

ACE_Configuration_Win32Registry::ACE_Configuration_Win32Registry ( HKEY  hKey)
explicit

Constructor for registry configuration database. hKey is the base registry key to attach to. This class takes ownership of hKey, it will invoke <RegCloseKey> on it upon destruction.

ACE_Configuration_Win32Registry::~ACE_Configuration_Win32Registry ( void  )
virtual

Destructor.

ACE_Configuration_Win32Registry::ACE_Configuration_Win32Registry ( void  )
protected
ACE_Configuration_Win32Registry::ACE_Configuration_Win32Registry ( const ACE_Configuration_Win32Registry rhs)
protected

Member Function Documentation

int ACE_Configuration_Win32Registry::enumerate_sections ( const ACE_Configuration_Section_Key key,
int  index,
ACE_TString name 
)
virtual

Enumerates through the subsections in a section.

Parameters
keySection key to iterate through.
indexIteration position. Must be zero on the first call to iterate through key. Increment index by one on each successive call to this method.
nameReceives the subsection's name.
Note
You may not modify the key section while enumerating. If the section is modified during enumeration, results are undefined; you must restart the enumeration from index 0.
Return values
0for success, name has a valid name.
1there are no more subsections in the section.
-1for error; ACE_OS::last_error() retrieves error code.

Implements ACE_Configuration.

int ACE_Configuration_Win32Registry::enumerate_values ( const ACE_Configuration_Section_Key key,
int  index,
ACE_TString name,
VALUETYPE type 
)
virtual

Enumerates through the values in a section.

Parameters
keySection key to iterate through.
indexIteration position. Must be zero on the first call to iterate through key. Increment index by one on each successive call to this method.
nameReceives the value's name.
typeReceives the value's data type.
Note
You may not delete or add values while enumerating. If the section is modified during enumeration, results are undefined; you must restart the enumeration from index 0.
Return values
0for success, name and type are valid.
1there are no more values in the section.
-1for error; ACE_OS::last_error() retrieves error code.

Implements ACE_Configuration.

int ACE_Configuration_Win32Registry::find_value ( const ACE_Configuration_Section_Key key,
const ACE_TCHAR name,
VALUETYPE type 
)
virtual

Retrieves the type of a named configuration value.

Parameters
keyConfiguration section to look up the name in.
nameName of the configuration value to get the type of.
typeReceives the data type of the named value, if it exists.
Return values
0for success.
-1for error; ACE_OS::last_error() retrieves error code.

Implements ACE_Configuration.

int ACE_Configuration_Win32Registry::get_binary_value ( const ACE_Configuration_Section_Key key,
const ACE_TCHAR name,
void *&  data,
size_t &  length 
)
virtual

Gets a binary-typed value.

Parameters
keyConfiguration section to get the value from.
nameName of the configuration value to get.
dataReceives a pointer to memory holding the binary data for the value. This method allocates the memory pointed to using operator new[]. The caller is responsible for freeing the memory using operator delete[].
lengthReceives the number of bytes in the value.
Return values
0for success; caller is responsible for freeing the returned memory.
-1for error; ACE_OS::last_error() retrieves error code.

Implements ACE_Configuration.

int ACE_Configuration_Win32Registry::get_integer_value ( const ACE_Configuration_Section_Key key,
const ACE_TCHAR name,
u_int &  value 
)
virtual

Gets an integer-typed value.

Parameters
keyConfiguration section to get the value from.
nameName of the configuration value to get.
valueReceives the configuration value if it exists and has type INTEGER.
Return values
0for success.
-1for error; ACE_OS::last_error() retrieves error code.

Implements ACE_Configuration.

int ACE_Configuration_Win32Registry::get_string_value ( const ACE_Configuration_Section_Key key,
const ACE_TCHAR name,
ACE_TString value 
)
virtual

Gets a string-typed value.

Parameters
keyConfiguration section to get the value from.
nameName of the configuration value to get.
valueReceives the configuration value if it exists and has type STRING.
Return values
0for success.
-1for error; ACE_OS::last_error() retrieves error code.

Implements ACE_Configuration.

int ACE_Configuration_Win32Registry::load_key ( const ACE_Configuration_Section_Key key,
HKEY &  hKey 
)
protected

Gets the HKEY for a configuration section.

int ACE_Configuration_Win32Registry::open_section ( const ACE_Configuration_Section_Key base,
const ACE_TCHAR sub_section,
int  create,
ACE_Configuration_Section_Key result 
)
virtual

Opens a named section in an existing section.

Parameters
baseExisting section in which to open the named section.
sub_sectionName of the section to open.
createIf zero, the named section must exist. If non-zero, the named section will be created if it does not exist.
resultReference; receives the section key for the new section.
Return values
0for success.
-1for error; ACE_OS::last_error() retrieves error code.

Implements ACE_Configuration.

bool ACE_Configuration_Win32Registry::operator!= ( const ACE_Configuration_Win32Registry rhs) const
virtual
ACE_Configuration_Win32Registry& ACE_Configuration_Win32Registry::operator= ( const ACE_Configuration_Win32Registry rhs)
protected
bool ACE_Configuration_Win32Registry::operator== ( const ACE_Configuration_Win32Registry rhs) const
virtual
int ACE_Configuration_Win32Registry::remove_section ( const ACE_Configuration_Section_Key key,
const ACE_TCHAR sub_section,
bool  recursive 
)
virtual

Removes a named section.

Parameters
keySection key to remove the named section from.
sub_sectionName of the section to remove.
recursiveIf true, any subkeys below sub_section are removed as well.
Return values
0for success.
-1for error; ACE_OS::last_error() retrieves error code.

Implements ACE_Configuration.

int ACE_Configuration_Win32Registry::remove_value ( const ACE_Configuration_Section_Key key,
const ACE_TCHAR name 
)
virtual

Removes the the value name from key. returns non zero on error.

Implements ACE_Configuration.

HKEY ACE_Configuration_Win32Registry::resolve_key ( HKEY  hKey,
const ACE_TCHAR path,
int  create = 1 
)
static

This method traverses <path> through <hKey>. It is useful when you want the HKEY for a specific registry key, especially when initializing this implementation. Caller is responsible for closeing this key when it is no longer used. If create is 1 (default) the keys are create if they don't already exist. Returns 0 on error

int ACE_Configuration_Win32Registry::set_binary_value ( const ACE_Configuration_Section_Key key,
const ACE_TCHAR name,
const void *  data,
size_t  length 
)
virtual

Sets a binary-typed value.

Parameters
keyConfiguration section to set the value in.
nameName of the configuration value to set. If a value with the specified name exists, it is replaced.
dataPointer to the binary data for the value.
lengthNumber of bytes for the new value.
Return values
0for success.
-1for error; ACE_OS::last_error() retrieves error code.

Implements ACE_Configuration.

int ACE_Configuration_Win32Registry::set_integer_value ( const ACE_Configuration_Section_Key key,
const ACE_TCHAR name,
u_int  value 
)
virtual

Sets a integer-typed value.

Parameters
keyConfiguration section to set the value in.
nameName of the configuration value to set. If a value with the specified name exists, it is replaced.
valueThe integer to set the configuration value to.
Return values
0for success.
-1for error; ACE_OS::last_error() retrieves error code.

Implements ACE_Configuration.

int ACE_Configuration_Win32Registry::set_string_value ( const ACE_Configuration_Section_Key key,
const ACE_TCHAR name,
const ACE_TString value 
)
virtual

Sets a string-typed value.

Parameters
keyConfiguration section to set the value in.
nameName of the configuration value to set. If a value with the specified name exists, it is replaced.
valueThe string to set the configuration value to.
Return values
0for success.
-1for error; ACE_OS::last_error() retrieves error code.

Implements ACE_Configuration.


The documentation for this class was generated from the following files: