flip NO_ASYNC; turn on as needed, if a layer requiring it is included

src/artifact_cache/artifact_cache.h

@@ -179,6 +179,9 @@ internal AC_Artifact ac_artifact_from_key_(Access *access, String8 key, AC_Artif
 ////////////////////////////////
 //~ rjf: Asynchronous Tick
 
+#if !defined(NEED_ASYNC)
+# define NEED_ASYNC 1
+#endif
 internal void ac_async_tick(void);
 
 ////////////////////////////////

src/base/base_entry_point.c

@@ -101,8 +101,8 @@ main_thread_base_entry_point(int arguments_count, char **arguments)
   rd_init(&cmdline);
 #endif
   
-#if !NO_ASYNC
   //- rjf: launch async threads
+#if NEED_ASYNC
   Thread *async_threads = 0;
   U64 lane_broadcast_val = 0;
   {
@@ -137,9 +137,10 @@ main_thread_base_entry_point(int arguments_count, char **arguments)
   //- rjf: call into entry point
   entry_point(&cmdline);
   
-#if !NO_ASYNC
   //- rjf: join async threads
+#if NEED_ASYNC
   ins_atomic_u32_inc_eval(&global_async_exit);
+  ins_atomic_u32_inc_eval(&async_loop_again);
   cond_var_broadcast(async_tick_start_cond_var);
   for EachIndex(idx, async_threads_count)
   {

src/com_shim/com_shim_main.c

@@ -1,7 +1,6 @@
 // Copyright (c) Epic Games Tools
 // Licensed under the MIT license (https://opensource.org/license/mit/)
 
-#define NO_ASYNC 1
 #define BUILD_CONSOLE_INTERFACE 1
 #define BUILD_TITLE "The RAD Debugger (Command Line Launcher)"
 #include "base/base_inc.h"

src/content/content.h

@@ -238,6 +238,9 @@ internal String8 c_data_from_hash(Access *access, U128 hash);
 ////////////////////////////////
 //~ rjf: Asynchronous Tick
 
+#if !defined(NEED_ASYNC)
+# define NEED_ASYNC 1
+#endif
 internal void c_async_tick(void);
 
 #endif // CONTENT_H

src/dbg_info/dbg_info.h

@@ -352,6 +352,9 @@ internal DI_EventList di_get_events(Arena *arena);
 ////////////////////////////////
 //~ rjf: Asynchronous Tick
 
+#if !defined(NEED_ASYNC)
+# define NEED_ASYNC 1
+#endif
 internal void di_async_tick(void);
 
 ////////////////////////////////

src/file_stream/file_stream.h

@@ -66,6 +66,9 @@ internal U128 fs_hash_from_path_range(String8 path, Rng1U64 range, U64 endt_us);
 ////////////////////////////////
 //~ rjf: Asynchronous Tick
 
+#if !defined(NEED_ASYNC)
+# define NEED_ASYNC 1
+#endif
 internal void fs_async_tick(void);
 
 #endif // FILE_STREAM_H

src/http/http.h

@@ -161,6 +161,9 @@ internal HTTP_StatusKind http_status_kind_from_code(HTTP_StatusCode code);
 ////////////////////////////////////////////////////////////////
 //~ rjf: @per_os_impl Top-Level Layer Calls
 
+#if !defined(NEED_ASYNC)
+# define NEED_ASYNC 1
+#endif
 internal void http_init(void);
 internal void http_async_tick(void);
 

src/symbol_server/symbol_server.h

@@ -11,6 +11,10 @@ typedef enum SMSV_Status
 }
 SMSV_Status;
 
+#if !defined(NEED_ASYNC)
+# define NEED_ASYNC 1
+#endif
+
 internal void smsv_init(void);
 internal void smsv_async_tick(void);
 internal String8 smsv_cache_path(void);

src/torture/torture_main.c

@@ -16,7 +16,6 @@
 #define R_INIT_MANUAL 1
 #define FNT_INIT_MANUAL 1
 #define RD_INIT_MANUAL 1
-#define NO_ASYNC 1
 
 ////////////////////////////////