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Rework WindowServer to use select() in its main event loop.

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The system can finally idle without burning CPU. :^)

There are some issues with scheduling making the mouse cursor sloppy
and unresponsive that need to be dealt with.
This commit is contained in:
Andreas Kling
2019-01-16 17:20:58 +01:00
parent f7ca6d254d
commit 4fef895eda
15 changed files with 121 additions and 33 deletions
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4
Kernel/MemoryManager.cpp
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@@ -537,7 +537,7 @@ bool MemoryManager::validate_user_read(const Process& process, LinearAddress lad
auto pte = PageTableEntry(&pde.pageTableBase()[pageTableIndex]);
if (!pte.is_present())
return false;
if (!pte.is_user_allowed())
if (process.isRing3() && !pte.is_user_allowed())
return false;
return true;
}
@@ -552,7 +552,7 @@ bool MemoryManager::validate_user_write(const Process& process, LinearAddress la
auto pte = PageTableEntry(&pde.pageTableBase()[pageTableIndex]);
if (!pte.is_present())
return false;
if (!pte.is_user_allowed())
if (process.isRing3() && !pte.is_user_allowed())
return false;
if (!pte.is_writable())
return false;