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Kernel: Make kernel region allocators return KResultOr<NOP<Region>>
This expands the reach of error propagation greatly throughout the kernel. Sadly, it also exposes the fact that we're allocating (and doing other fallible things) in constructors all over the place. This patch doesn't attempt to address that of course. That's work for our future selves.
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parent
cb71a73708
commit
75564b4a5f
40 changed files with 173 additions and 193 deletions
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@ -120,7 +120,7 @@ UNMAP_AFTER_INIT void VirtualConsole::initialize()
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// Allocate twice of the max row * max column * sizeof(Cell) to ensure we can have some sort of history mechanism...
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auto size = GraphicsManagement::the().console()->max_column() * GraphicsManagement::the().console()->max_row() * sizeof(Cell) * 2;
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m_cells = MM.allocate_kernel_region(Memory::page_round_up(size), "Virtual Console Cells", Memory::Region::Access::ReadWrite, AllocationStrategy::AllocateNow);
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m_cells = MM.allocate_kernel_region(Memory::page_round_up(size), "Virtual Console Cells", Memory::Region::Access::ReadWrite, AllocationStrategy::AllocateNow).release_value();
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// Add the lines, so we also ensure they will be flushed now
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for (size_t row = 0; row < rows(); row++) {
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@ -139,7 +139,7 @@ void VirtualConsole::refresh_after_resolution_change()
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// Note: From now on, columns() and rows() are updated with the new settings.
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auto size = GraphicsManagement::the().console()->max_column() * GraphicsManagement::the().console()->max_row() * sizeof(Cell) * 2;
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auto new_cells = MM.allocate_kernel_region(Memory::page_round_up(size), "Virtual Console Cells", Memory::Region::Access::ReadWrite, AllocationStrategy::AllocateNow);
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auto new_cells = MM.allocate_kernel_region(Memory::page_round_up(size), "Virtual Console Cells", Memory::Region::Access::ReadWrite, AllocationStrategy::AllocateNow).release_value();
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if (rows() < old_rows_count) {
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m_lines.shrink(rows());
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