serenity/VirtualFileSystem/NullDevice.cpp
2018-12-04 00:27:16 +01:00

29 lines
430 B
C++

#include "NullDevice.h"
#include "Limits.h"
#include <AK/StdLibExtras.h>
#include <AK/kstdio.h>
NullDevice::NullDevice()
: CharacterDevice(1, 3)
{
}
NullDevice::~NullDevice()
{
}
bool NullDevice::has_data_available_for_reading() const
{
return true;
}
ssize_t NullDevice::read(byte*, size_t)
{
return 0;
}
ssize_t NullDevice::write(const byte*, size_t bufferSize)
{
return min(GoodBufferSize, bufferSize);
}