Hello folks,
I am trying to use sem_open(3) but gcc complains that
O_CREAT and O_EXCL is undeclared. According to the man
page only semaphore.h needs to be included. But
including fcntl.h solves the problem.
sem_t *lock = sem_open("example_lock", O_CREAT |
O_EXCL, 0600, 1);
Another thing, a program with the above function call
compiles but when I execute it, it spits out "Bad
system call (core dump)". Specifically, I am trying to
run this program given here:
"http://www.informit.com/articles/article.asp?p=679545&seqNum=3&rl=1";.
Thanks for your time.
--girish
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