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Add Protect_Flags for virtual.protect

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This commit is contained in:
gingerBill
2021-10-04 17:42:15 +01:00
parent 728f143e33
commit 586a000152
3 changed files with 38 additions and 9 deletions
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core/mem/virtual/virtual_windows.odin
+18 -2
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@@ -77,9 +77,25 @@ _decommit :: proc(data: rawptr, size: uint) {
_release :: proc(data: rawptr, size: uint) {
VirtualFree(data, 0, MEM_RELEASE)
}
_protect :: proc(data: rawptr, size: uint) -> bool {
_protect :: proc(data: rawptr, size: uint, flags: Protect_Flags) -> bool {
pflags: u32
pflags = PAGE_NOACCESS
switch flags {
case {}: pflags = PAGE_NOACCESS
case {.Read}: pflags = PAGE_READONLY
case {.Read, .Write}: pflags = PAGE_READWRITE
case {.Write}: pflags = PAGE_WRITECOPY
case {.Execute}: pflags = PAGE_EXECUTE
case {.Execute, .Read}: pflags = PAGE_EXECUTE_READ
case {.Execute, .Read, .Write}: pflags = PAGE_EXECUTE_READWRITE
case {.Execute, .Write}: pflags = PAGE_EXECUTE_WRITECOPY
case:
return false
}
old_protect: u32
ok := VirtualProtect(data, size, PAGE_NOACCESS, &old_protect)
ok := VirtualProtect(data, size, pflags, &old_protect)
return bool(ok)
}