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Kernel: SYS_FORK can now fail instead of panicing on error

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Bananymous
2023-07-19 17:47:12 +03:00
parent 8b34880064
commit 5d2bfc858e
8 changed files with 79 additions and 67 deletions
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14
kernel/kernel/Memory/VirtualRange.cpp
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@@ -4,7 +4,7 @@
namespace Kernel
{
VirtualRange* VirtualRange::create(PageTable& page_table, vaddr_t vaddr, size_t size, uint8_t flags)
BAN::ErrorOr<BAN::UniqPtr<VirtualRange>> VirtualRange::create(PageTable& page_table, vaddr_t vaddr, size_t size, uint8_t flags)
{
ASSERT(size % PAGE_SIZE == 0);
ASSERT(vaddr % PAGE_SIZE == 0);
@@ -37,10 +37,10 @@ namespace Kernel
}
page_table.unlock();
return result;
return BAN::UniqPtr<VirtualRange>::adopt(result);
}
VirtualRange* VirtualRange::create_kmalloc(size_t size)
BAN::ErrorOr<BAN::UniqPtr<VirtualRange>> VirtualRange::create_kmalloc(size_t size)
{
VirtualRange* result = new VirtualRange(PageTable::kernel());
ASSERT(result);
@@ -52,10 +52,10 @@ namespace Kernel
if (result->m_vaddr == 0)
{
delete result;
return nullptr;
return BAN::UniqPtr<VirtualRange>();
}
return result;
return BAN::UniqPtr<VirtualRange>::adopt(result);
}
VirtualRange::VirtualRange(PageTable& page_table)
@@ -75,9 +75,9 @@ namespace Kernel
Heap::get().release_page(page);
}
VirtualRange* VirtualRange::clone(PageTable& page_table)
BAN::ErrorOr<BAN::UniqPtr<VirtualRange>> VirtualRange::clone(PageTable& page_table)
{
VirtualRange* result = create(page_table, vaddr(), size(), flags());
auto result = TRY(create(page_table, vaddr(), size(), flags()));
m_page_table.lock();