cfg_var_reader

#include <cfg_var.h>

Inheritance diagram for cfg_var_reader:

Public Member Functions
	cfg_var_reader (const GUID &guid)
	~cfg_var_reader ()
virtual void	set_data_raw (stream_reader *p_stream, t_size p_sizehint, abort_callback &p_abort)=0

Static Public Member Functions
static void	config_read_file (stream_reader *p_stream, abort_callback &p_abort)

Data Fields
const GUID	m_guid

Private Attributes
cfg_var_reader *	m_next

Static Private Attributes
static cfg_var_reader *	g_list = NULL

Detailed Description

Reader part of cfg_var object. In most cases, you should use cfg_var instead of using cfg_var_reader directly.

Definition at line 8 of file cfg_var.h.

Constructor & Destructor Documentation

cfg_var_reader::cfg_var_reader ( const GUID &  guid )

inline

Parameters

p_guid

GUID of the variable, used to identify variable implementations owning specific configuration file entries when reading the configuration file back. You must generate a new GUID every time you declare a new cfg_var.

Definition at line 11 of file cfg_var.h.

: m_guid(guid) { CFG_VAR_ASSERT_SAFEINIT; m_next = g_list; g_list = this; }

cfg_var_reader::~cfg_var_reader ( )

inline

Definition at line 12 of file cfg_var.h.

{ CFG_VAR_ASSERT_SAFEINIT; }

Member Function Documentation

void cfg_var_reader::config_read_file ( stream_reader *  p_stream, abort_callback &  p_abort  )

static

For internal use only, do not call.

Definition at line 6 of file cfg_var.cpp.

{
    pfc::map_t<GUID,cfg_var_reader*> vars;
    for(cfg_var_reader * walk = g_list; walk != NULL; walk = walk->m_next) {
        vars.set(walk->m_guid,walk);
    }
    for(;;) {
        
        GUID guid;
        t_uint32 size;

        if (p_stream->read(&guid,sizeof(guid),p_abort) != sizeof(guid)) break;
        guid = pfc::byteswap_if_be_t(guid);
        p_stream->read_lendian_t(size,p_abort);

        cfg_var_reader * var;
        if (vars.query(guid,var)) {
            stream_reader_limited_ref wrapper(p_stream,size);
            try {
                var->set_data_raw(&wrapper,size,p_abort);
            } catch(exception_io_data) {}
            wrapper.flush_remaining(p_abort);
        } else {
            p_stream->skip_object(size,p_abort);
        }
    }
}

virtual void cfg_var_reader::set_data_raw ( stream_reader *  p_stream, t_size  p_sizehint, abort_callback &  p_abort  )

pure virtual

Sets state of the variable. Called only from main thread, when reading configuration file.

Parameters

p_stream	Stream containing new state of the variable.
p_sizehint	Number of bytes contained in the stream; reading past p_sizehint bytes will fail (EOF).

Implemented in cfg_dsp_chain_config, cfgDialogPosition, cfg_objMap< TMap >, cfg_objListImporter< TObj, TImport >, cfg_obj< TObj >, cfg_objListEx< TList >, cfg_objList< TObj >, cfg_struct_t< t_struct >, cfg_string_mt, cfg_string, config_object_fixed_impl_t< p_size >, cfg_int_t< t_inttype >, cfg_int_t< t_uint64 >, cfg_int_t< bool >, cfgWindowSize, config_object_impl, cfg_window_size, cfg_window_placement, and cfg_guidlist.

Field Documentation

cfg_var_reader * cfg_var_reader::g_list = NULL

staticprivate

Definition at line 24 of file cfg_var.h.

const GUID cfg_var_reader::m_guid

Definition at line 22 of file cfg_var.h.

cfg_var_reader* cfg_var_reader::m_next

private

Definition at line 25 of file cfg_var.h.

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

• foobar2000/SDK/cfg_var.h
• foobar2000/SDK/cfg_var.cpp