1b2ef8582c
Asking a File if we could possibly read or write it will never mutate the asking FileDescription&, so it should be const.
32 lines
578 B
C++
32 lines
578 B
C++
#include "FullDevice.h"
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#include <AK/StdLibExtras.h>
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#include <AK/kstdio.h>
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#include <LibC/errno_numbers.h>
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FullDevice::FullDevice()
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: CharacterDevice(1, 7)
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{
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}
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FullDevice::~FullDevice()
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{
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}
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bool FullDevice::can_read(const FileDescription&) const
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{
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return true;
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}
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ssize_t FullDevice::read(FileDescription&, u8* buffer, ssize_t size)
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{
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ssize_t count = min(PAGE_SIZE, size);
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memset(buffer, 0, (size_t)count);
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return count;
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}
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ssize_t FullDevice::write(FileDescription&, const u8*, ssize_t size)
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{
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if (size == 0)
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return 0;
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return -ENOSPC;
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}
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