30  *	Case 1: Parent opens a file and duplicates it, places locks using
71 static int parent, child1, child2, status;  variable
85 	if ((syscall(__NR_gettid)) == parent) {  in alarm_sig()
86 		tst_resm(TINFO, "Alarm caught by parent");  in alarm_sig()
136 	 * send signal to parent here to tell parent we have locked the  in dochild1()
137 	 * file, thus allowing parent to proceed  in dochild1()
139 	if ((kill(parent, SIGUSR1)) < 0) {  in dochild1()
140 		perror("child1 signal to parent failed");  in dochild1()
145 	 * set alarm to break pause if parent fails to signal then spin till  in dochild1()
146 	 * parent ready  in dochild1()
154 		       "SIGUSR2 signal from parent");  in dochild1()
196 			      parent, tmpname) < 0) {  in dofork()
215 			perror("parent sigprocmask SIG_BLOCK fail");  in dofork()
220 		 * set alarm to break pause if parent fails to signal then spin till  in dofork()
221 		 * parent ready  in dofork()
228 			perror("parent paused without SIGUSR1 " "from child");  in dofork()
234 			perror("parent sigprocmask SIG_SETMASK fail");  in dofork()
287 	 * send signal to parent here to tell parent we have locked the  in dochild2()
288 	 * file, thus allowing parent to proceed  in dochild2()
290 	if ((kill(parent, SIGUSR1)) < 0) {  in dochild2()
291 		perror("child2 signal to parent failed");  in dochild2()
296 	 * set alarm to break pause if parent fails to signal then spin till  in dochild2()
297 	 * parent ready  in dochild2()
305 		       "SIGUSR2 signal from parent");  in dochild2()
370 	/* setup to catch SIGUSR2 signal from parent */  in run_test()
375 	parent = syscall(__NR_gettid);  in run_test()
379 	sprintf(tmpname, "fcntl15.%d", parent);  in run_test()
385 		perror("open first parent file failed");  in run_test()
398 				perror("open second parent file failed");  in run_test()
406 			perror("dup of second parent file failed");  in run_test()
423 		perror("Attempt to set first parent lock failed");  in run_test()
437 			perror("Attempt to set second parent lock failed");  in run_test()
451 			      dup_flag, parent, tmpname) < 0)  in run_test()
458 	/* parent */  in run_test()
471 		perror("parent sigprocmask SIG_BLOCK fail");  in run_test()
476 	 * set alarm to break pause if parent fails to signal then spin till  in run_test()
477 	 * parent ready  in run_test()
484 		perror("parent paused without SIGUSR1 " "from child");  in run_test()
490 		perror("parent sigprocmask SIG_SETMASK fail");  in run_test()
532 			&uc_file_mode, &parent, tmpname);  in main()
534 			&uc_file_mode, &uc_dup_flag, &parent, tmpname);  in main()