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Kernel+LibC: Turn errno codes into a strongly typed enum

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..and allow implicit creation of KResult and KResultOr from ErrnoCode.
This means that kernel functions that return those types can finally
do "return EINVAL;" and it will just work.

There's a handful of functions that still deal with signed integers
that should be converted to return KResults.
This commit is contained in:
Andreas Kling 2021-01-20 23:11:17 +01:00
parent e279b45aed
commit 19d3f8cab7
48 changed files with 591 additions and 506 deletions
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4
Kernel/PerformanceEventBuffer.cpp
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@ -51,7 +51,7 @@ KResult PerformanceEventBuffer::append(int type, FlatPtr arg1, FlatPtr arg2)
KResult PerformanceEventBuffer::append_with_eip_and_ebp(u32 eip, u32 ebp, int type, FlatPtr arg1, FlatPtr arg2)
{
if (count() >= capacity())
return KResult(-ENOBUFS);
return ENOBUFS;
PerformanceEvent event;
event.type = type;
@ -67,7 +67,7 @@ KResult PerformanceEventBuffer::append_with_eip_and_ebp(u32 eip, u32 ebp, int ty
event.data.free.ptr = arg1;
break;
default:
return KResult(-EINVAL);
return EINVAL;
}
auto current_thread = Thread::current();