1 /*
2 *
3 * Copyright 2015 gRPC authors.
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 */
18
19 #include <grpc/support/port_platform.h>
20
21 #include <grpc/support/cpu.h>
22
23 #ifdef GPR_CPU_IPHONE
24
25 /* Probably 2 instead of 1, but see comment on gpr_cpu_current_cpu. */
gpr_cpu_num_cores(void)26 unsigned gpr_cpu_num_cores(void) { return 1; }
27
28 /* Most code that's using this is using it to shard across work queues. So
29 unless profiling shows it's a problem or there appears a way to detect the
30 currently running CPU core, let's have it shard the default way.
31 Note that the interface in cpu.h lets gpr_cpu_num_cores return 0, but doing
32 it makes it impossible for gpr_cpu_current_cpu to satisfy its stated range,
33 and some code might be relying on it. */
gpr_cpu_current_cpu(void)34 unsigned gpr_cpu_current_cpu(void) { return 0; }
35
36 #endif /* GPR_CPU_IPHONE */
37