Move exception lock to ModuleInstance data.

This lock acquired on each native function call. This cause performance impact
on programs, containing many native function calls, and running in multithreaded environment.

Author: vchigrin

core/iwasm/aot/aot_runtime.c

@@ -1963,6 +1963,12 @@ aot_instantiate(AOTModule *module, AOTModuleInstance *parent,
     module_inst->e =
         (WASMModuleInstanceExtra *)((uint8 *)module_inst + extra_info_offset);
     extra = (AOTModuleInstanceExtra *)module_inst->e;
+#if WASM_ENABLE_THREAD_MGR != 0
+    if (os_mutex_init(&extra->common.exception_lock) != 0) {
+        wasm_runtime_free(module_inst);
+        return NULL;
+    }
+#endif
 
 #if WASM_ENABLE_GC != 0
     /* Initialize gc heap first since it may be used when initializing
@@ -2353,6 +2359,10 @@ aot_deinstantiate(AOTModuleInstance *module_inst, bool is_sub_inst)
         wasm_exec_env_destroy((WASMExecEnv *)module_inst->exec_env_singleton);
     }
 
+#if WASM_ENABLE_THREAD_MGR != 0
+    os_mutex_destroy(&extra->common.exception_lock);
+#endif
+
 #if WASM_ENABLE_PERF_PROFILING != 0
     if (module_inst->func_perf_profilings)
         wasm_runtime_free(module_inst->func_perf_profilings);

core/iwasm/interpreter/wasm_runtime.c

@@ -2512,6 +2512,12 @@ wasm_instantiate(WASMModule *module, WASMModuleInstance *parent,
     module_inst->module = module;
     module_inst->e =
         (WASMModuleInstanceExtra *)((uint8 *)module_inst + extra_info_offset);
+#if WASM_ENABLE_THREAD_MGR != 0
+    if (os_mutex_init(&module_inst->e->common.exception_lock) != 0) {
+        wasm_runtime_free(module_inst);
+        return NULL;
+    }
+#endif
 
 #if WASM_ENABLE_MULTI_MODULE != 0
     module_inst->e->sub_module_inst_list =
@@ -3501,6 +3507,9 @@ wasm_deinstantiate(WASMModuleInstance *module_inst, bool is_sub_inst)
     bh_bitmap_delete(module_inst->e->common.elem_dropped);
 #endif
 
+#if WASM_ENABLE_THREAD_MGR != 0
+    os_mutex_destroy(&module_inst->e->common.exception_lock);
+#endif
     wasm_runtime_free(module_inst);
 }
 

core/iwasm/interpreter/wasm_runtime.h

@@ -334,6 +334,9 @@ typedef struct WASMModuleInstanceExtraCommon {
     /* The gc heap created */
     void *gc_heap_handle;
 #endif
+#if WASM_ENABLE_THREAD_MGR != 0
+    korp_mutex exception_lock;
+#endif
 } WASMModuleInstanceExtraCommon;
 
 /* Extra info of WASM module instance for interpreter/jit mode */

core/iwasm/libraries/thread-mgr/thread_manager.c

@@ -29,8 +29,6 @@ static bh_list cluster_list_head;
 static bh_list *const cluster_list = &cluster_list_head;
 static korp_mutex cluster_list_lock;
 
-static korp_mutex _exception_lock;
-
 typedef void (*list_visitor)(void *, void *);
 
 static uint32 cluster_max_thread_num = CLUSTER_MAX_THREAD_NUM;
@@ -51,10 +49,6 @@ thread_manager_init()
         return false;
     if (os_mutex_init(&cluster_list_lock) != 0)
         return false;
-    if (os_mutex_init(&_exception_lock) != 0) {
-        os_mutex_destroy(&cluster_list_lock);
-        return false;
-    }
     return true;
 }
 
@@ -69,7 +63,6 @@ thread_manager_destroy()
         cluster = next;
     }
     wasm_cluster_cancel_all_callbacks();
-    os_mutex_destroy(&_exception_lock);
     os_mutex_destroy(&cluster_list_lock);
 }
 
@@ -1537,22 +1530,31 @@ wasm_cluster_is_thread_terminated(WASMExecEnv *exec_env)
     return is_thread_terminated;
 }
 
+static WASMModuleInstanceExtraCommon *
+GetModuleinstanceCommon(WASMModuleInstance *module_inst)
+{
+#if WASM_ENABLE_AOT != 0
+    if (module_inst->module_type == Wasm_Module_AoT) {
+        return &((AOTModuleInstanceExtra *)module_inst->e)->common;
+    }
+    else {
+        return &module_inst->e->common;
+    }
+#else
+    return &module_inst->e->common;
+#endif
+}
+
 void
 exception_lock(WASMModuleInstance *module_inst)
 {
-    /*
-     * Note: this lock could be per module instance if desirable.
-     * We can revisit on AOT version bump.
-     * It probably doesn't matter though because the exception handling
-     * logic should not be executed too frequently anyway.
-     */
-    os_mutex_lock(&_exception_lock);
+    os_mutex_lock(&GetModuleinstanceCommon(module_inst)->exception_lock);
 }
 
 void
 exception_unlock(WASMModuleInstance *module_inst)
 {
-    os_mutex_unlock(&_exception_lock);
+    os_mutex_unlock(&GetModuleinstanceCommon(module_inst)->exception_lock);
 }
 
 void