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Kernel: Use KResultOr<size_t> for the DoubleBuffer class

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This commit is contained in:
Gunnar Beutner 2021-06-16 15:33:14 +02:00 • committed by Andreas Kling
parent 1c3346e3ce
commit ca3cae81eb
4 changed files with 31 additions and 31 deletions
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12
Kernel/DoubleBuffer.h
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@ -18,19 +18,19 @@ class DoubleBuffer {
public:
explicit DoubleBuffer(size_t capacity = 65536);
[[nodiscard]] ssize_t write(const UserOrKernelBuffer&, size_t);
[[nodiscard]] ssize_t write(const u8* data, size_t size)
[[nodiscard]] KResultOr<size_t> write(const UserOrKernelBuffer&, size_t);
[[nodiscard]] KResultOr<size_t> write(const u8* data, size_t size)
{
return write(UserOrKernelBuffer::for_kernel_buffer(const_cast<u8*>(data)), size);
}
[[nodiscard]] ssize_t read(UserOrKernelBuffer&, size_t);
[[nodiscard]] ssize_t read(u8* data, size_t size)
[[nodiscard]] KResultOr<size_t> read(UserOrKernelBuffer&, size_t);
[[nodiscard]] KResultOr<size_t> read(u8* data, size_t size)
{
auto buffer = UserOrKernelBuffer::for_kernel_buffer(data);
return read(buffer, size);
}
[[nodiscard]] ssize_t peek(UserOrKernelBuffer&, size_t);
[[nodiscard]] ssize_t peek(u8* data, size_t size)
[[nodiscard]] KResultOr<size_t> peek(UserOrKernelBuffer&, size_t);
[[nodiscard]] KResultOr<size_t> peek(u8* data, size_t size)
{
auto buffer = UserOrKernelBuffer::for_kernel_buffer(data);
return peek(buffer, size);