Library: Foundation
Package: Streams
Header: Poco/StreamCopier.h
Description
This class provides static methods to copy the contents from one stream into another.
Member Summary
Member Functions: copyStream, copyStream64, copyStreamRange, copyStreamRange64, copyStreamRangeUnbuffered, copyStreamRangeUnbuffered64, copyStreamUnbuffered, copyStreamUnbuffered64, copyToString, copyToString64
Member Functions
copyStream 
static std::streamsize copyStream(
std::istream & istr,
std::ostream & ostr,
std::size_t bufferSize = 8192
);
Writes all bytes readable from istr to ostr, using an internal buffer.
Returns the number of bytes copied.
copyStream64
static Poco::UInt64 copyStream64(
std::istream & istr,
std::ostream & ostr,
std::size_t bufferSize = 8192
);
Writes all bytes readable from istr to ostr, using an internal buffer.
Returns the number of bytes copied as a 64-bit unsigned integer.
Note: the only difference to copyStream() is that a 64-bit unsigned integer is used to count the number of bytes copied.
copyStreamRange
static std::streamsize copyStreamRange(
std::istream & istr,
std::ostream & ostr,
std::streampos rangeStart,
std::streamsize rangeLength,
std::size_t bufferSize = 8192
);
Writes range of bytes readable from istr to ostr, using an internal buffer.
Returns the number of bytes copied.
copyStreamRange64
static Poco::UInt64 copyStreamRange64(
std::istream & istr,
std::ostream & ostr,
std::streampos rangeStart,
std::streamsize rangeLength,
std::size_t bufferSize = 8192
);
Writes range of bytes readable from istr to ostr, using an internal buffer.
Returns the number of bytes copied as a 64-bit unsigned integer.
Note: the only difference to copyStreamRange() is that a 64-bit unsigned integer is used to count the number of bytes copied.
copyStreamRangeUnbuffered
static std::streamsize copyStreamRangeUnbuffered(
std::istream & istr,
std::ostream & ostr,
std::streampos rangeStart,
std::streamsize rangeLength
);
Writes range of bytes readable from istr to ostr.
Returns the number of bytes copied.
copyStreamRangeUnbuffered64
static Poco::UInt64 copyStreamRangeUnbuffered64(
std::istream & istr,
std::ostream & ostr,
std::streampos rangeStart,
std::streamsize rangeLength
);
Writes range of bytes readable from istr to ostr.
Returns the number of bytes copied as a 64-bit unsigned integer.
Note: the only difference to copyStreamRangeUnbuffered() is that a 64-bit unsigned integer is used to count the number of bytes copied.
copyStreamUnbuffered
static std::streamsize copyStreamUnbuffered(
std::istream & istr,
std::ostream & ostr
);
Writes all bytes readable from istr to ostr.
Returns the number of bytes copied.
copyStreamUnbuffered64
static Poco::UInt64 copyStreamUnbuffered64(
std::istream & istr,
std::ostream & ostr
);
Writes all bytes readable from istr to ostr.
Returns the number of bytes copied as a 64-bit unsigned integer.
Note: the only difference to copyStreamUnbuffered() is that a 64-bit unsigned integer is used to count the number of bytes copied.
copyToString
static std::streamsize copyToString(
std::istream & istr,
std::string & str,
std::size_t bufferSize = 8192
);
Appends all bytes readable from istr to the given string, using an internal buffer.
Returns the number of bytes copied.
copyToString64
static Poco::UInt64 copyToString64(
std::istream & istr,
std::string & str,
std::size_t bufferSize = 8192
);
Appends all bytes readable from istr to the given string, using an internal buffer.
Returns the number of bytes copied as a 64-bit unsigned integer.
Note: the only difference to copyToString() is that a 64-bit unsigned integer is used to count the number of bytes copied.