| /* |
| * |
| * Copyright 2015 gRPC authors. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| */ |
| |
| #ifndef GRPC_TEST_CORE_UTIL_PORT_H |
| #define GRPC_TEST_CORE_UTIL_PORT_H |
| |
| typedef struct grpc_pick_port_functions { |
| int (*pick_unused_port_fn)(void); |
| int (*pick_unused_port_or_die_fn)(void); |
| void (*recycle_unused_port_fn)(int port); |
| } grpc_pick_port_functions; |
| |
| /* pick a port number that is currently unused by either tcp or udp. return |
| 0 on failure. */ |
| int grpc_pick_unused_port(void); |
| /* pick a port number that is currently unused by either tcp or udp. abort |
| on failure. */ |
| int grpc_pick_unused_port_or_die(void); |
| |
| /* Return a port which was previously returned by grpc_pick_unused_port(). |
| * Implementations of grpc_pick_unused_port() backed by a portserver may limit |
| * the total number of ports available; this lets a binary return its allocated |
| * ports back to the server if it is going to allocate a large number. */ |
| void grpc_recycle_unused_port(int port); |
| |
| /** Request the family of pick_port functions in \a functions be used. */ |
| void grpc_set_pick_port_functions(grpc_pick_port_functions functions); |
| |
| #endif /* GRPC_TEST_CORE_UTIL_PORT_H */ |