#!/usr/local/bin/rune -x
#

import "sys";
import <stdio>;

int
main(int ac, char **av)
{
	Fs fs;
	size_t off;

	if (ac == 1) {
		stdio.stdout->format("Supply filename for flock test\n");
		Sys.exit(1);
	}

	if (fs.open(av[1], O_RDWR) < 0) {
		stdio.stdout->format("open(%s) failed error %d\n",
				     av[1], fs.error);
	} else if (fs.flock(LOCK_EX | LOCK_NB) < 0) {
		stdio.stdout->format("flock() failed error %d\n",
				     fs.error);
	} else {
		stdio.stdout->format("flock() suceeded error %d\n",
				     fs.error);
		stdio.stdout->format("sleeping for 2 seconds\n");
		Thread.mssleep(2000);
		if (fs.flock(LOCK_UN) < 0)
			stdio.stdout->format("flock(LOCK_UN) "
					     "failed error %d\n",
					     fs.error);
	}

	# Should obtain lock on each loop and destructor should
	# release it on each loop.
	#
	for (off = 0; off < 1024Z; off += 32Z) {
		FdLock fl;

		fl.start = off;
		fl.len = 32;
		fl.type = fl.F_WRLCK;
		fl.fd = fs.fd;
		stdio.stdout->format("lock %d\n", off);
		fl.fsetlkw();
		stdio.stdout->format("result %d --> %d type=%d\n", off, fl.error, fl.type);
		Thread.mssleep(2000);
		stdio.stdout->format("unlock %d\n", off);
	}
}