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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/DoubleBuffer.h
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@ -36,8 +36,8 @@ class DoubleBuffer {
public:
explicit DoubleBuffer(size_t capacity = 65536);
ssize_t write(const u8*, ssize_t);
ssize_t read(u8*, ssize_t);
size_t write(const u8*, size_t);
size_t read(u8*, size_t);
bool is_empty() const { return m_empty; }