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Kernel: Replace KResult and KResultOr<T> with Error and ErrorOr<T>

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We now use AK::Error and AK::ErrorOr<T> in both kernel and userspace!
This was a slightly tedious refactoring that took a long time, so it's
not unlikely that some bugs crept in.

Nevertheless, it does pass basic functionality testing, and it's just
real nice to finally see the same pattern in all contexts. :^)
This commit is contained in:
Andreas Kling 2021-11-08 00:51:39 +01:00
parent 7ee10c6926
commit 79fa9765ca
262 changed files with 2415 additions and 2600 deletions
Download patch file Download diff file Expand all files Collapse all files

12
Kernel/Syscalls/write.cpp
View file

@ -11,7 +11,7 @@
namespace Kernel {
KResultOr<FlatPtr> Process::sys$writev(int fd, Userspace<const struct iovec*> iov, int iov_count)
ErrorOr<FlatPtr> Process::sys$writev(int fd, Userspace<const struct iovec*> iov, int iov_count)
{
VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this)
REQUIRE_PROMISE(stdio);
@ -45,7 +45,7 @@ KResultOr<FlatPtr> Process::sys$writev(int fd, Userspace<const struct iovec*> io
auto result = do_write(*description, buffer.value(), vec.iov_len);
if (result.is_error()) {
if (nwritten == 0)
return result.error();
return result.release_error();
return nwritten;
}
nwritten += result.value();
@ -54,7 +54,7 @@ KResultOr<FlatPtr> Process::sys$writev(int fd, Userspace<const struct iovec*> io
return nwritten;
}
KResultOr<FlatPtr> Process::do_write(OpenFileDescription& description, const UserOrKernelBuffer& data, size_t data_size)
ErrorOr<FlatPtr> Process::do_write(OpenFileDescription& description, const UserOrKernelBuffer& data, size_t data_size)
{
size_t total_nwritten = 0;
@ -81,9 +81,9 @@ KResultOr<FlatPtr> Process::do_write(OpenFileDescription& description, const Use
if (nwritten_or_error.is_error()) {
if (total_nwritten > 0)
return total_nwritten;
if (nwritten_or_error.error() == EAGAIN)
if (nwritten_or_error.error().code() == EAGAIN)
continue;
return nwritten_or_error.error();
return nwritten_or_error.release_error();
}
VERIFY(nwritten_or_error.value() > 0);
total_nwritten += nwritten_or_error.value();
@ -91,7 +91,7 @@ KResultOr<FlatPtr> Process::do_write(OpenFileDescription& description, const Use
return total_nwritten;
}
KResultOr<FlatPtr> Process::sys$write(int fd, Userspace<const u8*> data, size_t size)
ErrorOr<FlatPtr> Process::sys$write(int fd, Userspace<const u8*> data, size_t size)
{
VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this)
REQUIRE_PROMISE(stdio);