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Add error value to commit

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This commit is contained in:
gingerBill
2021-10-05 17:11:12 +01:00
parent 16ca677c1f
commit 455d64fbd4
4 changed files with 29 additions and 10 deletions
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core/mem/virtual/virtual_windows.odin
+16 -2
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@@ -50,11 +50,15 @@ PAGE_WRITECOPY :: 0x08
PAGE_TARGETS_INVALID :: 0x40000000
PAGE_TARGETS_NO_UPDATE :: 0x40000000
ERROR_INVALID_ADDRESS :: 487
@(default_calling_convention="stdcall")
foreign Kernel32 {
GetSystemInfo :: proc(lpSystemInfo: LPSYSTEM_INFO) ---
VirtualAlloc :: proc(lpAddress: rawptr, dwSize: uint, flAllocationType: u32, flProtect: u32) -> rawptr ---
VirtualFree :: proc(lpAddress: rawptr, dwSize: uint, dwFreeType: u32) -> b32 ---
VirtualProtect :: proc(lpAddress: rawptr, dwSize: uint, flNewProtect: u32, lpflOldProtect: ^u32) -> b32 ---
GetLastError :: proc() -> u32 ---
}
@@ -68,8 +72,18 @@ _reserve :: proc(size: uint) -> (data: []byte, err: Allocator_Error) {
return
}
_commit :: proc(data: rawptr, size: uint) {
VirtualAlloc(data, size, MEM_COMMIT, PAGE_READWRITE)
_commit :: proc(data: rawptr, size: uint) -> Allocator_Error {
result := VirtualAlloc(data, size, MEM_COMMIT, PAGE_READWRITE)
if result == nil {
switch err := GetLastError(); err {
case ERROR_INVALID_ADDRESS:
return .Out_Of_Memory
}
// TODO(bill): Handle errors correctly
return .Invalid_Argument
}
return nil
}
_decommit :: proc(data: rawptr, size: uint) {
VirtualFree(data, size, MEM_DECOMMIT)