7f235c0d101d71224c8e498ac8f7fde1f98596c7dgaudet# aso method feature tests

f062ed7bd262a37a909dd77ce5fc23b446818823fielding

f062ed7bd262a37a909dd77ce5fc23b446818823fieldingaso fcntl note{ fcntl(F_SETLCK[W]) work }end link{

33bdcae1f7a1a65e351dda2a766a0cf28b1e695dnd #include <sys/types.h>

f062ed7bd262a37a909dd77ce5fc23b446818823fielding #include <unistd.h>

7f235c0d101d71224c8e498ac8f7fde1f98596c7dgaudet #include <fcntl.h>

7f235c0d101d71224c8e498ac8f7fde1f98596c7dgaudet

7f235c0d101d71224c8e498ac8f7fde1f98596c7dgaudet int main()

7f235c0d101d71224c8e498ac8f7fde1f98596c7dgaudet {

7f235c0d101d71224c8e498ac8f7fde1f98596c7dgaudet struct flock lock;

7f235c0d101d71224c8e498ac8f7fde1f98596c7dgaudet

f062ed7bd262a37a909dd77ce5fc23b446818823fielding lock.l_type = F_WRLCK;

7f235c0d101d71224c8e498ac8f7fde1f98596c7dgaudet lock.l_whence = SEEK_SET;

7f235c0d101d71224c8e498ac8f7fde1f98596c7dgaudet lock.l_start = 0;

7f235c0d101d71224c8e498ac8f7fde1f98596c7dgaudet lock.l_len = 1;

7f235c0d101d71224c8e498ac8f7fde1f98596c7dgaudet return fcntl(1, F_SETLKW, &lock) < 0;

7f235c0d101d71224c8e498ac8f7fde1f98596c7dgaudet }

7f235c0d101d71224c8e498ac8f7fde1f98596c7dgaudet}end

f062ed7bd262a37a909dd77ce5fc23b446818823fielding

f062ed7bd262a37a909dd77ce5fc23b446818823fieldingaso semaphore note{ semget semop semctl work }end link{

f062ed7bd262a37a909dd77ce5fc23b446818823fielding #include <sys/types.h>

f062ed7bd262a37a909dd77ce5fc23b446818823fielding #include <sys/stat.h>

f062ed7bd262a37a909dd77ce5fc23b446818823fielding #include <unistd.h>

f062ed7bd262a37a909dd77ce5fc23b446818823fielding #include <fcntl.h>

7f235c0d101d71224c8e498ac8f7fde1f98596c7dgaudet #include <sys/ipc.h>

f062ed7bd262a37a909dd77ce5fc23b446818823fielding #include <sys/sem.h>

f062ed7bd262a37a909dd77ce5fc23b446818823fielding

f062ed7bd262a37a909dd77ce5fc23b446818823fielding int main()

f062ed7bd262a37a909dd77ce5fc23b446818823fielding {

7f235c0d101d71224c8e498ac8f7fde1f98596c7dgaudet int id;

f062ed7bd262a37a909dd77ce5fc23b446818823fielding struct sembuf sem;

f062ed7bd262a37a909dd77ce5fc23b446818823fielding

64185f9824e42f21ca7b9ae6c004484215c031a7rbb if ((id = semget(IPC_PRIVATE, 16, IPC_CREAT|IPC_EXCL|S_IRUSR|S_IWUSR)) < 0)

7f235c0d101d71224c8e498ac8f7fde1f98596c7dgaudet return 1;

f062ed7bd262a37a909dd77ce5fc23b446818823fielding sem.sem_num = 0;

f062ed7bd262a37a909dd77ce5fc23b446818823fielding sem.sem_op = 1;

f062ed7bd262a37a909dd77ce5fc23b446818823fielding sem.sem_flg = 0;

f062ed7bd262a37a909dd77ce5fc23b446818823fielding if (semop(id, &sem, 1) < 0)

7f235c0d101d71224c8e498ac8f7fde1f98596c7dgaudet return 1;

f062ed7bd262a37a909dd77ce5fc23b446818823fielding if (semctl(id, 0, IPC_RMID) < 0)

f062ed7bd262a37a909dd77ce5fc23b446818823fielding return 1;

f062ed7bd262a37a909dd77ce5fc23b446818823fielding return 0;

f062ed7bd262a37a909dd77ce5fc23b446818823fielding }

f062ed7bd262a37a909dd77ce5fc23b446818823fielding}end

f062ed7bd262a37a909dd77ce5fc23b446818823fielding