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The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
https://grpc.io/
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139 lines
3.8 KiB
139 lines
3.8 KiB
// |
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// |
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// Copyright 2015 gRPC authors. |
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// |
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// Licensed under the Apache License, Version 2.0 (the "License"); |
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// you may not use this file except in compliance with the License. |
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// You may obtain a copy of the License at |
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// |
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// http://www.apache.org/licenses/LICENSE-2.0 |
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// |
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// Unless required by applicable law or agreed to in writing, software |
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// distributed under the License is distributed on an "AS IS" BASIS, |
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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// See the License for the specific language governing permissions and |
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// limitations under the License. |
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// |
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// |
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#include "src/core/lib/iomgr/port.h" |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <utility> |
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#include "absl/log/check.h" |
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#include <grpc/grpc.h> |
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#include <grpc/support/alloc.h> |
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#include <grpc/support/log.h> |
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#include <grpc/support/sync.h> |
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#include "src/core/lib/gprpp/sync.h" |
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#include "test/core/util/port.h" |
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#include "test/core/util/port_server_client.h" |
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static int* chosen_ports = nullptr; |
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static size_t num_chosen_ports = 0; |
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static grpc_core::Mutex* g_default_port_picker_mu; |
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static gpr_once g_default_port_picker_init = GPR_ONCE_INIT; |
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static void init_default_port_picker() { |
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g_default_port_picker_mu = new grpc_core::Mutex(); |
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} |
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static int free_chosen_port_locked(int port) { |
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size_t i; |
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int found = 0; |
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size_t found_at = 0; |
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// Find the port and erase it from the list, then tell the server it can be |
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// freed. |
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for (i = 0; i < num_chosen_ports; i++) { |
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if (chosen_ports[i] == port) { |
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CHECK_EQ(found, 0); |
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found = 1; |
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found_at = i; |
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} |
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} |
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if (found) { |
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chosen_ports[found_at] = chosen_ports[num_chosen_ports - 1]; |
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num_chosen_ports--; |
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grpc_free_port_using_server(port); |
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} |
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return found; |
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} |
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static void free_chosen_ports(void) { |
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grpc_core::MutexLock lock(g_default_port_picker_mu); |
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size_t i; |
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grpc_init(); |
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for (i = 0; i < num_chosen_ports; i++) { |
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grpc_free_port_using_server(chosen_ports[i]); |
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} |
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grpc_shutdown(); |
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gpr_free(chosen_ports); |
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} |
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static void chose_port_locked(int port) { |
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if (chosen_ports == nullptr) { |
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atexit(free_chosen_ports); |
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} |
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num_chosen_ports++; |
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chosen_ports = static_cast<int*>( |
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gpr_realloc(chosen_ports, sizeof(int) * num_chosen_ports)); |
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chosen_ports[num_chosen_ports - 1] = port; |
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} |
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static int grpc_pick_unused_port_impl(void) { |
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gpr_once_init(&g_default_port_picker_init, init_default_port_picker); |
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grpc_core::MutexLock lock(g_default_port_picker_mu); |
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int port = grpc_pick_port_using_server(); |
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if (port != 0) { |
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chose_port_locked(port); |
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} |
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return port; |
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} |
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static int grpc_pick_unused_port_or_die_impl(void) { |
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int port = grpc_pick_unused_port_impl(); |
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if (port == 0) { |
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fprintf(stderr, |
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"gRPC tests require a helper port server to allocate ports used \n" |
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"during the test.\n\n" |
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"This server is not currently running.\n\n" |
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"To start it, run tools/run_tests/start_port_server.py\n\n"); |
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exit(1); |
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} |
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return port; |
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} |
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static void grpc_recycle_unused_port_impl(int port) { |
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gpr_once_init(&g_default_port_picker_init, init_default_port_picker); |
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grpc_core::MutexLock lock(g_default_port_picker_mu); |
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CHECK(free_chosen_port_locked(port)); |
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} |
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namespace { |
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grpc_pick_port_functions& functions() { |
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static grpc_pick_port_functions* functions = new grpc_pick_port_functions{ |
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grpc_pick_unused_port_or_die_impl, grpc_recycle_unused_port_impl}; |
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return *functions; |
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} |
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} // namespace |
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int grpc_pick_unused_port_or_die(void) { |
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return functions().pick_unused_port_or_die_fn(); |
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} |
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void grpc_recycle_unused_port(int port) { |
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functions().recycle_unused_port_fn(port); |
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} |
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grpc_pick_port_functions grpc_set_pick_port_functions( |
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grpc_pick_port_functions new_functions) { |
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CHECK_NE(new_functions.pick_unused_port_or_die_fn, nullptr); |
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CHECK_NE(new_functions.recycle_unused_port_fn, nullptr); |
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return std::exchange(functions(), new_functions); |
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}
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