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Kernel: Make File::write() and File::read() return KResultOr<size_t>

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Instead of returning a ssize_t where negative values mean error,
we now return KResultOr<size_t> and use the error state to report
errors exclusively.
This commit is contained in:
Andreas Kling 2020-08-04 18:02:23 +02:00
parent 58feebeed2
commit 7a3ab6c517
58 changed files with 223 additions and 229 deletions
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4
Kernel/Devices/DiskPartition.cpp
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@ -48,7 +48,7 @@ DiskPartition::~DiskPartition()
{
}
ssize_t DiskPartition::read(FileDescription& fd, size_t offset, u8* outbuf, ssize_t len)
KResultOr<size_t> DiskPartition::read(FileDescription& fd, size_t offset, u8* outbuf, size_t len)
{
unsigned adjust = m_block_offset * block_size();
@ -70,7 +70,7 @@ bool DiskPartition::can_read(const FileDescription& fd, size_t offset) const
return m_device->can_read(fd, offset + adjust);
}
ssize_t DiskPartition::write(FileDescription& fd, size_t offset, const u8* inbuf, ssize_t len)
KResultOr<size_t> DiskPartition::write(FileDescription& fd, size_t offset, const u8* inbuf, size_t len)
{
unsigned adjust = m_block_offset * block_size();