sys/file/flock_helper.c

146  * except for the lock type which is set to F_UNLCK.
177  * If a shared or exclusive lock cannot be set, fcntl returns
207 		 * We are the child. We set a write lock and then
220 	 * Wait until the child has set its lock and then perform the
227 	 * fcntl should return -1 with errno set to either EACCES or
278 		 * We are the child. We set a write lock and then
291 	 * Wait until the child has set its lock and then perform the
299 	 * errno set to EINTR.
347 		 * We are the child. We set a write lock and then
360 	 * Wait until the child has set its lock and then perform the
448 	 * Wait until the child has set its lock and then perform the
454 	 * fcntl should immediately return -1 with errno set to
486  * This test involves three process, P, C1 and C2. We set things up so
551 	 * Wait until the children have set their locks and then
557 	 * fcntl should immediately return -1 with errno set to
592  * If a shared or exclusive lock cannot be set, fcntl returns
622 		 * We are the child. We set a write lock and then
635 	 * Wait until the child has set its lock and then perform the
643 	 * errno set to EINTR.
663  * When a shared lock is set on a segment of a file, other processes
664  * shall be able to set shared locks on that segment or a portion of
694 		 * We are the child. We set a write lock and then
707 	 * Wait until the child has set its lock and then perform the
715 	 * errno set to EINTR.
741  * If a shared or exclusive lock cannot be set, fcntl returns
771 		 * We are the child. We set a write lock and then
784 	 * Wait until the child has set its lock and then perform the
792 	 * errno set to EINTR.
810  * Test 10 - trying to set bogus pid or sysid values
846 		 * We are the child. We set a write lock and then
859 	 * Wait until the child has set its lock and then perform the
865 	printf("10 - trying to set bogus pid or sysid values: ");
996 		 * We are the child. We set a write lock and then
1010 	 * Wait until the child has set its lock and then perform the
1018 	 * errno set to EINTR.
1079 			 * We are the child. We set a write lock and then
1093 		 * Wait until the child has set its lock and then perform the
1104 		 * errno set to EINTR.
1136 	 * We create a set of child processes and let each one run
1180 			int set, wrlock;
1187 			set = random() & 1;
1194 			if (set)
1211 						    set ? (wrlock ? "write lock"
1236 				    set ? (wrlock ? "write lock" : "read lock")
1241 			if (set) {
1339 	 * set the child's shared lock.
1356 		 * We are the child. We set a shared lock and then
1373 	 * Wait until the child has set its lock and then perform the
1385 	 * errno set to EINTR.
1468 		 * We are the child. We set a write lock and then
1481 	 * Wait until the child has set its lock and then perform the
1489 	 * errno set to EINTR.