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local l = require "luxio"
local fd, r, errno
fd, errno = l.open("test-lock-file", l.O_RDWR)
assert(fd >= 0)
t = {
l_type = l.F_WRLCK,
l_whence = l.SEEK_SET,
l_start = 0,
l_len = 4096
}
r, errno = l.fcntl(fd, l.F_GETLK, t)
print("fnctl: r,errno:", r, errno)
print("held by pid, waiting for unlock", t.l_pid)
t.l_type = l.F_WRLCK
r, errno = l.fcntl(fd, l.F_SETLKW, t)
print("fnctl: r,errno:", r, errno)
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