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 #ifndef TST_PID_H__ 19 #define TST_PID_H__ 20 21 #include <sys/types.h> 22 23 /* 24 * Get a pid value not used by the OS 25 */ 26 pid_t tst_get_unused_pid_(void (*cleanup_fn)(void)); 27 28 /* 29 * Returns number of free pids by substarction of the number of pids 30 * currently used ('ps -eT') from max_pids 31 */ 32 int tst_get_free_pids_(void (*cleanup_fn)(void)); 33 34 #ifdef TST_TEST_H__ tst_get_unused_pid(void)35static inline pid_t tst_get_unused_pid(void) 36 { 37 return tst_get_unused_pid_(NULL); 38 } 39 tst_get_free_pids(void)40static inline int tst_get_free_pids(void) 41 { 42 return tst_get_free_pids_(NULL); 43 } 44 #else tst_get_unused_pid(void (* cleanup_fn)(void))45static inline pid_t tst_get_unused_pid(void (*cleanup_fn)(void)) 46 { 47 return tst_get_unused_pid_(cleanup_fn); 48 } 49 tst_get_free_pids(void (* cleanup_fn)(void))50static inline int tst_get_free_pids(void (*cleanup_fn)(void)) 51 { 52 return tst_get_free_pids_(cleanup_fn); 53 } 54 #endif 55 56 #endif /* TST_PID_H__ */ 57