25 	struct flock flock = {  in try_to_lock()  local
33 	if (fcntl(fd, F_SETLK, &flock) == 0) {  in try_to_lock()
43 	if (fcntl(fd, F_SETLKW, &flock) == -1) {  in try_to_lock()
49 	flock.l_type = F_UNLCK;  in try_to_lock()
51 	if (fcntl(fd, F_SETLK, &flock) == -1) {  in try_to_lock()
70 	struct flock flock = {  in main()  local
78 	if (fcntl(fd, F_SETLK, &flock) == 0) {  in main()
84 	flock.l_type = F_RDLCK;  in main()
87 	if (fcntl(fd, F_SETLK, &flock) == -1) {  in main()
101 	flock.l_type = F_WRLCK;  in main()
102 	flock.l_start = 100;  in main()
103 	flock.l_len = 42;  in main()
105 	if (fcntl(fd, F_SETLK, &flock) == -1) {  in main()
111 	flock.l_start = 200;  in main()
113 	if (fcntl(fd, F_SETLK, &flock) == -1) {  in main()
119 	flock.l_start = 80;  in main()
121 	if (fcntl(fd, F_SETLK, &flock) == 0) {  in main()
127 	flock.l_type = F_UNLCK;  in main()
128 	flock.l_start = 100;  in main()
130 	if (fcntl(fd, F_SETLK, &flock) == -1) {  in main()
136 	flock.l_type = F_WRLCK;  in main()
137 	flock.l_start = 80;  in main()
139 	if (fcntl(fd, F_SETLK, &flock) == -1) {  in main()
156 	flock.l_type = F_UNLCK;  in main()
157 	flock.l_start = 200;  in main()
159 	if (fcntl(fd, F_SETLK, &flock) == -1) {  in main()