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LibGUI+Kernel: Add a GLock class (userspace mutex.)

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It's basically a userspace port of the kernel's Lock class.
Added gettid() and donate() syscalls to support the timeslice donation
feature we already enjoyed in the kernel.
This commit is contained in:
Andreas Kling 2019-03-25 13:03:49 +01:00
commit 500df578fe
Notes: sideshowbarker 2024-07-19 14:56:50 +09:00
10 changed files with 176 additions and 12 deletions
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4
Kernel/Syscall.cpp
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@ -57,6 +57,10 @@ static dword handle(RegisterDump& regs, dword function, dword arg1, dword arg2,
case Syscall::SC_yield:
Scheduler::yield();
break;
case Syscall::SC_donate:
return current->process().sys$donate((int)arg1);
case Syscall::SC_gettid:
return current->process().sys$gettid();
case Syscall::SC_putch:
Console::the().put_char(arg1 & 0xff);
break;