Rob Browning <r...@defaultvalue.org> writes:
> If I get time, I might poke around a bit and see if the thing we've
> attempted to fix here might be more widespread.
I suppose something like this might serve as a generalization:
#define SCM_LOCKED_SYSCALL(lock, body) \
while(1) \
{ \
scm_i_pthread_mutex_t *lock___ = (lock); \
scm_i_pthread_mutex_lock (lock___); \
errno = 0; \
{ body; } \
int err___ = errno; \
scm_i_pthread_mutex_unlock (lock___); \
if (err___ != EINTR) \
break; \
scm_async_tick (); \
}
Though a good, shorter name would be nice. Then we'd have:
#ifdef HAVE_TTYNAME_R
SCM_SYSCALL (err = ttyname_r (fd, name, TTY_NAME_MAX));
#else // HAVE_TTYNAME
char *global_name = 0;
SCM_LOCKED_SYSCALL(&scm_i_misc_mutex, global_name = ttyname (fd));
if (global_name)
strcpy(name, global_name);
#endif // HAVE_TTYNAME
--
Rob Browning
rlb @defaultvalue.org and @debian.org
GPG as of 2011-07-10 E6A9 DA3C C9FD 1FF8 C676 D2C4 C0F0 39E9 ED1B 597A
GPG as of 2002-11-03 14DD 432F AE39 534D B592 F9A0 25C8 D377 8C7E 73A4
