add some fix for speed_limit

deps/oblib/src/lib/alloc/alloc_func.cpp

@@ -74,6 +74,16 @@ int64_t get_tenant_memory_hold(uint64_t tenant_id)
   return bytes;
 }
 
+int64_t get_tenant_memory_remain(uint64_t tenant_id)
+{
+  int64_t bytes = 0;
+  ObMallocAllocator *allocator = ObMallocAllocator::get_instance();
+  if (!OB_ISNULL(allocator)) {
+    bytes = allocator->get_tenant_remain(tenant_id);
+  }
+  return bytes;
+}
+
 int64_t get_tenant_memory_hold(const uint64_t tenant_id, const uint64_t ctx_id)
 {
   int64_t bytes = 0;

deps/oblib/src/lib/alloc/alloc_func.h

@@ -32,6 +32,7 @@ void set_tenant_memory_limit(uint64_t tenant_id, int64_t bytes);
 int64_t get_tenant_memory_limit(uint64_t tenant_id);
 int64_t get_tenant_memory_hold(uint64_t tenant_id);
 int64_t get_tenant_memory_hold(const uint64_t tenant_id, const uint64_t ctx_id);
+int64_t get_tenant_memory_remain(uint64_t tenant_id);
 void get_tenant_mod_memory(uint64_t tenant_id, int mod_id, common::ObModItem& ObModItem);
 void ob_set_reserved_memory(const int64_t bytes);
 void ob_set_urgent_memory(const int64_t bytes);

deps/oblib/src/lib/alloc/ob_malloc_allocator.cpp

@@ -420,6 +420,16 @@ int64_t ObMallocAllocator::get_tenant_hold(uint64_t tenant_id)
   return hold;
 }
 
+int64_t ObMallocAllocator::get_tenant_remain(uint64_t tenant_id)
+{
+  int64_t remain = 0;
+  with_resource_handle_invoke(tenant_id, [&remain](ObTenantMemoryMgr *mgr) {
+    remain = mgr->get_limit() - mgr->get_sum_hold() + mgr->get_cache_hold();
+    return OB_SUCCESS;
+  });
+  return remain;
+}
+
 int64_t ObMallocAllocator::get_tenant_rpc_hold(uint64_t tenant_id)
 {
   int64_t rpc_hold = 0;

deps/oblib/src/lib/alloc/ob_malloc_allocator.h

@@ -57,6 +57,7 @@ public:
   static int set_tenant_limit(uint64_t tenant_id, int64_t bytes);
   static int64_t get_tenant_limit(uint64_t tenant_id);
   static int64_t get_tenant_hold(uint64_t tenant_id);
+  static int64_t get_tenant_remain(uint64_t tenant_id);
   static int64_t get_tenant_rpc_hold(uint64_t tenant_id);
   int64_t get_tenant_ctx_hold(const uint64_t tenant_id, const uint64_t ctx_id) const;
   void get_tenant_mod_usage(uint64_t tenant_id, int mod_id, common::ObModItem& item) const;