Add `mem.Allocator_Query_Info` and `mem.query_info`

2 files changed, 13 insertions, 4 deletions

diff --git a/core/runtime/core.odin b/core/runtime/core.odin
index d3522c268..4e871351b 100644
--- a/core/runtime/core.odin
+++ b/core/runtime/core.odin
@@ -234,6 +234,9 @@ args__: []cstring;
 
 // IMPORTANT NOTE(bill): Must be in this order (as the compiler relies upon it)
 
+@builtin
+Maybe :: union(T: typeid) #maybe {T};
+
 
 Source_Code_Location :: struct {
 	file_path:    string,
@@ -252,10 +255,17 @@ Allocator_Mode :: enum byte {
 	Free_All,
 	Resize,
 	Query_Features,
+	Query_Info,
 }
 
 Allocator_Mode_Set :: distinct bit_set[Allocator_Mode];
 
+Allocator_Query_Info :: struct {
+	pointer:   rawptr,
+	size:      Maybe(int),
+	alignment: Maybe(int),
+}
+
 Allocator_Proc :: #type proc(allocator_data: rawptr, mode: Allocator_Mode,
                              size, alignment: int,
                              old_memory: rawptr, old_size: int, flags: u64 = 0, location: Source_Code_Location = #caller_location) -> rawptr;
@@ -310,10 +320,6 @@ Context :: struct {
 }
 
 
-@builtin
-Maybe :: union(T: typeid) #maybe {T};
-
-
 
 @thread_local global_default_temp_allocator_data: Default_Temp_Allocator;
 
diff --git a/core/runtime/default_allocators.odin b/core/runtime/default_allocators.odin
index 3643fccdf..14f4edcda 100644
--- a/core/runtime/default_allocators.odin
+++ b/core/runtime/default_allocators.odin
@@ -139,6 +139,9 @@ default_temp_allocator_proc :: proc(allocator_data: rawptr, mode: Allocator_Mode
 			set^ = {.Alloc, .Free, .Free_All, .Resize, .Query_Features};
 		}
 		return set;
+
+	case .Query_Info:
+		return nil;
 	}
 
 	return nil;