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Kernel: Add explicit offset parameter to File::read etc

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This commit is contained in:
Conrad Pankoff 2020-04-10 19:44:42 +10:00 • committed by Andreas Kling
parent 68c7ca7d3b
commit a3edeb5868
45 changed files with 199 additions and 183 deletions
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6
Kernel/Devices/ZeroDevice.cpp
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@ -39,19 +39,19 @@ ZeroDevice::~ZeroDevice()
{
}
bool ZeroDevice::can_read(const FileDescription&) const
bool ZeroDevice::can_read(const FileDescription&, size_t) const
{
return true;
}
ssize_t ZeroDevice::read(FileDescription&, u8* buffer, ssize_t size)
ssize_t ZeroDevice::read(FileDescription&, size_t, u8* buffer, ssize_t size)
{
ssize_t count = min(PAGE_SIZE, size);
memset(buffer, 0, (size_t)count);
return count;
}
ssize_t ZeroDevice::write(FileDescription&, const u8*, ssize_t size)
ssize_t ZeroDevice::write(FileDescription&, size_t, const u8*, ssize_t size)
{
return min(PAGE_SIZE, size);
}