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Correctly support -default-to-nil-allocator for all platforms

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This commit is contained in:
gingerBill
2021-11-04 11:03:21 +00:00
parent 1980f32bd6
commit 3fa7dabaa8
8 changed files with 81 additions and 92 deletions
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core/runtime/default_allocators_windows.odin
+32 -26
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@@ -1,38 +1,44 @@
//+build windows
package runtime
default_allocator_proc :: proc(allocator_data: rawptr, mode: Allocator_Mode,
size, alignment: int,
old_memory: rawptr, old_size: int, loc := #caller_location) -> (data: []byte, err: Allocator_Error) {
switch mode {
case .Alloc:
data, err = _windows_default_alloc(size, alignment)
when ODIN_DEFAULT_TO_NIL_ALLOCATOR {
// mem.nil_allocator reimplementation
default_allocator_proc :: nil_allocator_proc
default_allocator :: nil_allocator
} else {
default_allocator_proc :: proc(allocator_data: rawptr, mode: Allocator_Mode,
size, alignment: int,
old_memory: rawptr, old_size: int, loc := #caller_location) -> (data: []byte, err: Allocator_Error) {
switch mode {
case .Alloc:
data, err = _windows_default_alloc(size, alignment)
case .Free:
_windows_default_free(old_memory)
case .Free:
_windows_default_free(old_memory)
case .Free_All:
// NOTE(tetra): Do nothing.
case .Free_All:
// NOTE(tetra): Do nothing.
case .Resize:
data, err = _windows_default_resize(old_memory, old_size, size, alignment)
case .Resize:
data, err = _windows_default_resize(old_memory, old_size, size, alignment)
case .Query_Features:
set := (^Allocator_Mode_Set)(old_memory)
if set != nil {
set^ = {.Alloc, .Free, .Resize, .Query_Features}
case .Query_Features:
set := (^Allocator_Mode_Set)(old_memory)
if set != nil {
set^ = {.Alloc, .Free, .Resize, .Query_Features}
}
case .Query_Info:
// Do nothing
}
case .Query_Info:
// Do nothing
return
}
return
}
default_allocator :: proc() -> Allocator {
return Allocator{
procedure = default_allocator_proc,
data = nil,
default_allocator :: proc() -> Allocator {
return Allocator{
procedure = default_allocator_proc,
data = nil,
}
}
}
}