Streaming of input and output.
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#include <JFileStream.hh>
Streaming of input and output.
Definition at line 68 of file JFileStream.hh.
Constructor.
- Parameters
-
in | input file |
out | output file |
size | size of internal buffer |
Definition at line 80 of file JFileStream.hh.
JFileStreamBuffer(const JAbstractFile &in, const JAbstractFile &out, const std::size_t size=65536, const std::size_t put_back=8)
Constructor.
virtual int_type JLANG::JFileInputStreamBuffer::underflow |
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inlineoverridevirtualinherited |
Check underflow.
This method reads as many bytes as possible.
- Returns
- first character if OK; else EOF
Definition at line 60 of file JFileStreamBuffer.hh.
62 if (gptr() >= egptr()) {
64 char* __begin = this->data();
66 if (eback() == __begin) {
75 const size_t len =
in.
read(__begin, this->size() - (__begin - this->data()));
78 setg(this->data(), __begin, __begin + len);
80 return traits_type::eof();
virtual int read(char *buffer, const int length)
Read data from file.
Check availability of input.
This method returns true if at least one byte can be read without blocking.
- Parameters
-
- Returns
- true if ready to read; else false
Definition at line 94 of file JFileStreamBuffer.hh.
Auxiliary class for method select.
bool in_avail(JTimeval timeout=JTimeval::min())
Check availability of input.
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inlineoverridevirtualinherited |
Check overflow.
This method writes one byte if possible.
- Parameters
-
- Returns
- c if OK; else EOF
Definition at line 153 of file JFileStreamBuffer.hh.
155 if (c != traits_type::eof()) {
161 if (
flush() == traits_type::eof()) {
162 return traits_type::eof();
int flush()
Flush internal buffer.
virtual int JLANG::JFileOutputStreamBuffer::sync |
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inlineoverridevirtualinherited |
Synchronise buffer.
Definition at line 173 of file JFileStreamBuffer.hh.
175 if (
flush() == traits_type::eof())
int flush()
Flush internal buffer.
Check availability of output.
This method returns true if at least one byte can be written without blocking.
- Parameters
-
- Returns
- true if ready to write; else false
Definition at line 189 of file JFileStreamBuffer.hh.
bool out_avail(JTimeval timeout=JTimeval::min())
Check availability of output.
Auxiliary class for method select.
int JLANG::JFileOutputStreamBuffer::flush |
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inlineprotectedinherited |
Flush internal buffer.
Definition at line 198 of file JFileStreamBuffer.hh.
200 const int len = pptr() - pbase();
204 if (
out.
write(this->data(), len) != len) {
205 return traits_type::eof();
virtual int write(const char *buffer, const int length)
Write data to file.
JFile JLANG::JFileInputStreamBuffer::in |
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protectedinherited |
std::size_t JLANG::JFileInputStreamBuffer::memory |
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protectedinherited |
JFile JLANG::JFileOutputStreamBuffer::out |
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protectedinherited |
The documentation for this class was generated from the following file: