1 /* Self tests for run_on_main_thread 2 3 Copyright (C) 2019-2023 Free Software Foundation, Inc. 4 5 This file is part of GDB. 6 7 This program is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 3 of the License, or 10 (at your option) any later version. 11 12 This program is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 19 20 #include "defs.h" 21 #include "gdbsupport/selftest.h" 22 #include "gdbsupport/block-signals.h" 23 #include "gdbsupport/scope-exit.h" 24 #include "run-on-main-thread.h" 25 #include "gdbsupport/event-loop.h" 26 #if CXX_STD_THREAD 27 #include <thread> 28 #endif 29 30 namespace selftests { 31 namespace main_thread_tests { 32 33 #if CXX_STD_THREAD 34 35 static bool done; 36 37 static void 38 set_done () 39 { 40 run_on_main_thread ([] () 41 { 42 done = true; 43 }); 44 } 45 46 static void 47 run_tests () 48 { 49 std::thread thread; 50 51 done = false; 52 53 { 54 gdb::block_signals blocker; 55 56 SCOPE_EXIT 57 { 58 if (thread.joinable ()) 59 thread.join (); 60 }; 61 thread = std::thread (set_done); 62 } 63 64 while (!done && gdb_do_one_event () >= 0) 65 ; 66 67 /* Actually the test will just hang, but we want to test 68 something. */ 69 SELF_CHECK (done); 70 } 71 72 #endif 73 74 } 75 } 76 77 void _initialize_main_thread_selftests (); 78 void 79 _initialize_main_thread_selftests () 80 { 81 #if CXX_STD_THREAD 82 selftests::register_test ("run_on_main_thread", 83 selftests::main_thread_tests::run_tests); 84 #endif 85 } 86