FileOutputStream Class Reference

#include <FileOutputStream.h>

Inheritance diagram for FileOutputStream:

Protected Member Functions
void	init (File *_file) __DCL_THROWS1(IOException *)
Protected Member Functions inherited from Object
virtual	~Object ()
	Object ()

Protected Attributes
File *	__file
bool	__closeDestroy
byte_t *	__buf
size_t	__bufSize
size_t	__dataSize

Additional Inherited Members
Public Member Functions inherited from Object
virtual String	toString () const
virtual void	destroy ()
String	className () const
bool	isInstanceOf (const std::type_info &typeinfo) const
virtual const std::type_info &	typeInfo () const

Detailed Description

파일에 바이트 스트림을 출력한다. UNIX 운영체제에서 파일이 블록 장치이면 블록의 크기 단위로 버퍼링을 하여 출력하고, 그 외에는 4096바이트 단위로 버퍼링을 한다.

Author

Daejung Kim

Since

DCL Version 1.0

See also

File

Definition at line 23 of file FileOutputStream.h.

Member Function Documentation

init()

void FileOutputStream::init ( File * _file )

protected

블록장치 여부를 확인하고, 출력버퍼의 크기를 설정한다.

Definition at line 48 of file FileOutputStream.cpp.

{
    __buf = NULL;
    __bufSize = 0;
#ifdef __WINNT__
    switch (_file->fileType()) {
        case File::REGULAR: {
            __bufSize = 4096;
            break;
        }
        case File::PIPE: {
            DWORD dwOutBufferSize = 0;
            if (GetNamedPipeInfo(_file->handle(), NULL, &dwOutBufferSize, NULL, NULL)) {
                __bufSize = dwOutBufferSize;
            }
            break;
        }
        default: {
            // __bufSize = 0;
        }
    }
#else
    if (!isatty(_file->handle())) {
        struct stat st;
        if (fstat(_file->handle(), &st)) {
            throw new IOException(_file->path(), errno);
        }
        __bufSize = st.st_blksize;
    }
#endif
    __dataSize = 0;
}

Member Data Documentation

__buf

byte_t* FileOutputStream::__buf

protected

Definition at line 106 of file FileOutputStream.h.

__bufSize

size_t FileOutputStream::__bufSize

protected

Definition at line 107 of file FileOutputStream.h.

__closeDestroy

bool FileOutputStream::__closeDestroy

protected

Definition at line 104 of file FileOutputStream.h.

__dataSize

size_t FileOutputStream::__dataSize

protected

Definition at line 108 of file FileOutputStream.h.

__file

File* FileOutputStream::__file

protected

Definition at line 103 of file FileOutputStream.h.

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

• FileOutputStream.h
• FileOutputStream.cpp