adjusting repo for removing extra features not part of the original library

source/base/thread_context.c

@@ -0,0 +1,87 @@
+#ifdef INTELLISENSE_DIRECTIVES
+#	include "arena.h"
+#	include "thread_context.h"
+#endif
+
+// Copyright (c) 2024 Epic Games Tools
+// Licensed under the MIT license (https://opensource.org/license/mit/)
+
+////////////////////////////////
+// NOTE(allen): Thread Context Functions
+
+MD_API_C thread_static TCTX* tctx_thread_local;
+
+#if ! MD_BUILD_SUPPLEMENTARY_UNIT
+MD_API_C thread_static TCTX* tctx_thread_local = 0;
+#endif
+
+void
+tctx_init_and_equip(TCTX* tctx)
+{
+	// memory_zero_struct(tctx);
+
+	Arena** arena_ptr = tctx->arenas;
+	for (U64 i = 0; i < array_count(tctx->arenas); i += 1, arena_ptr += 1)
+	{
+		if (*arena_ptr == nullptr)
+		{
+			VArena* vm = varena_alloc(.reserve_size = VARENA_DEFAULT_RESERVE, .commit_size = VARENA_DEFAULT_COMMIT);
+			*arena_ptr = arena_alloc(.backing = varena_allocator(vm));
+		}
+	}
+	tctx_thread_local = tctx;
+}
+
+void
+tctx_init_and_equip_alloc(TCTX* tctx, AllocatorInfo ainfo)
+{
+	memory_zero_struct(tctx);
+
+	Arena** arena_ptr = tctx->arenas;
+	for (U64 i = 0; i < array_count(tctx->arenas); i += 1, arena_ptr += 1)
+	{
+		if (*arena_ptr == nullptr)
+		{
+			*arena_ptr = arena_alloc(.backing = ainfo);
+		}
+	}
+	tctx_thread_local = tctx;
+}
+
+void
+tctx_release(void) {
+  for (U64 i = 0; i < array_count(tctx_thread_local->arenas); i += 1) {
+    arena_release(tctx_thread_local->arenas[i]);
+  }
+}
+
+TCTX*
+tctx_get_equipped(void){
+  return(tctx_thread_local);
+}
+
+Arena*
+tctx_get_scratch(Arena** conflicts, U64 count)
+{
+	TCTX* tctx = tctx_get_equipped();
+
+	Arena*  result    = 0;
+	Arena** arena_ptr = tctx->arenas;
+	for (U64 i = 0; i < array_count(tctx->arenas); i += 1, arena_ptr += 1)
+	{
+		Arena** conflict_ptr = conflicts;
+		B32     has_conflict = 0;
+		for (U64 j = 0; j < count; j += 1, conflict_ptr += 1)
+		{
+			if (*arena_ptr == *conflict_ptr) {
+				has_conflict = 1;
+				break;
+			}
+		}
+		if ( ! has_conflict){
+			result = *arena_ptr;
+			break;
+		}
+	}
+	return(result);
+}