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Kernel: Add a simple shared memory API for two processes only.

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And use this to implement shared bitmaps between WindowServer and clients.
This commit is contained in:
Andreas Kling 2019-02-16 12:13:43 +01:00
parent 4db78dabd3
commit 4ea28bf0a5
13 changed files with 240 additions and 48 deletions
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6
Kernel/Syscall.cpp
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@ -211,6 +211,12 @@ static dword handle(RegisterDump& regs, dword function, dword arg1, dword arg2,
return current->sys$accept((int)arg1, (sockaddr*)arg2, (socklen_t*)arg3);
case Syscall::SC_connect:
return current->sys$connect((int)arg1, (const sockaddr*)arg2, (socklen_t)arg3);
case Syscall::SC_create_shared_buffer:
return current->sys$create_shared_buffer((pid_t)arg1, (size_t)arg2, (void**)arg3);
case Syscall::SC_get_shared_buffer:
return (dword)current->sys$get_shared_buffer((int)arg1);
case Syscall::SC_release_shared_buffer:
return current->sys$release_shared_buffer((int)arg1);
default:
kprintf("<%u> int0x80: Unknown function %u requested {%x, %x, %x}\n", current->pid(), function, arg1, arg2, arg3);
break;