xref: /aosp_15_r20/external/cronet/base/allocator/dispatcher/configuration.h (revision 6777b5387eb2ff775bb5750e3f5d96f37fb7352b)
1*6777b538SAndroid Build Coastguard Worker // Copyright 2022 The Chromium Authors
2*6777b538SAndroid Build Coastguard Worker // Use of this source code is governed by a BSD-style license that can be
3*6777b538SAndroid Build Coastguard Worker // found in the LICENSE file.
4*6777b538SAndroid Build Coastguard Worker 
5*6777b538SAndroid Build Coastguard Worker #ifndef BASE_ALLOCATOR_DISPATCHER_CONFIGURATION_H_
6*6777b538SAndroid Build Coastguard Worker #define BASE_ALLOCATOR_DISPATCHER_CONFIGURATION_H_
7*6777b538SAndroid Build Coastguard Worker 
8*6777b538SAndroid Build Coastguard Worker #include <cstddef>
9*6777b538SAndroid Build Coastguard Worker 
10*6777b538SAndroid Build Coastguard Worker namespace base::allocator::dispatcher::configuration {
11*6777b538SAndroid Build Coastguard Worker 
12*6777b538SAndroid Build Coastguard Worker // The maximum number of optional observers that may be present depending on
13*6777b538SAndroid Build Coastguard Worker // command line parameters.
14*6777b538SAndroid Build Coastguard Worker constexpr size_t kMaximumNumberOfOptionalObservers = 4;
15*6777b538SAndroid Build Coastguard Worker 
16*6777b538SAndroid Build Coastguard Worker // The total number of observers including mandatory and optional observers.
17*6777b538SAndroid Build Coastguard Worker // Primarily the number of observers affects the performance at allocation time.
18*6777b538SAndroid Build Coastguard Worker // The current value of 4 doesn't have hard evidence. Keep in mind that
19*6777b538SAndroid Build Coastguard Worker // also a single observer can severely impact performance.
20*6777b538SAndroid Build Coastguard Worker constexpr size_t kMaximumNumberOfObservers = 4;
21*6777b538SAndroid Build Coastguard Worker 
22*6777b538SAndroid Build Coastguard Worker }  // namespace base::allocator::dispatcher::configuration
23*6777b538SAndroid Build Coastguard Worker 
24*6777b538SAndroid Build Coastguard Worker #endif  // BASE_ALLOCATOR_DISPATCHER_CONFIGURATION_H_