1 /* 2 * Copyright (c) 2015-2016 Cyril Hrubis <chrubis@suse.cz> 3 * 4 * This program is free software: you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License as published by 6 * the Free Software Foundation, either version 2 of the License, or 7 * (at your option) any later version. 8 * 9 * This program is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 * 14 * You should have received a copy of the GNU General Public License 15 * along with this program. If not, see <http://www.gnu.org/licenses/>. 16 */ 17 18 /* 19 20 Checkpoint - easy to use parent-child synchronization. 21 22 Checkpoint is based on futexes (man futex). The library allocates a page of 23 shared memory for futexes and the id is an offset to it which gives the user 24 up to page_size/sizeof(uint32_t) checkpoint pairs. Up to INT_MAX processes 25 can sleep on single id and can be woken up by single wake. 26 27 */ 28 29 #ifndef OLD_CHECKPOINT__ 30 #define OLD_CHECKPOINT__ 31 32 #include "test.h" 33 #include "tst_checkpoint_fn.h" 34 35 /* 36 * Checkpoint initializaton, must be done first. 37 * 38 * NOTE: tst_tmpdir() must be called beforehand. 39 */ 40 #define TST_CHECKPOINT_INIT(cleanup_fn) \ 41 tst_checkpoint_init(__FILE__, __LINE__, cleanup_fn) 42 43 #define TST_SAFE_CHECKPOINT_WAIT(cleanup_fn, id) \ 44 tst_safe_checkpoint_wait(__FILE__, __LINE__, cleanup_fn, id, 0); 45 46 #define TST_SAFE_CHECKPOINT_WAIT2(cleanup_fn, id, msec_timeout) \ 47 tst_safe_checkpoint_wait(__FILE__, __LINE__, cleanup_fn, id, msec_timeout); 48 49 #define TST_SAFE_CHECKPOINT_WAKE(cleanup_fn, id) \ 50 tst_safe_checkpoint_wake(__FILE__, __LINE__, cleanup_fn, id, 1); 51 52 #define TST_SAFE_CHECKPOINT_WAKE2(cleanup_fn, id, nr_wake) \ 53 tst_safe_checkpoint_wake(__FILE__, __LINE__, cleanup_fn, id, nr_wake); 54 55 #define TST_SAFE_CHECKPOINT_WAKE_AND_WAIT(cleanup_fn, id) \ 56 tst_safe_checkpoint_wake(__FILE__, __LINE__, cleanup_fn, id, 1); \ 57 tst_safe_checkpoint_wait(__FILE__, __LINE__, cleanup_fn, id, 0); 58 59 #endif /* OLD_CHECKPOINT__ */ 60