void _native_lpm_sleep()
{
#ifdef MODULE_UART0
int nfds;
/* set fds */
FD_ZERO(&_native_rfds);
nfds = _native_set_uart_fds();
nfds++;
_native_in_syscall++; // no switching here
nfds = select(nfds, &_native_rfds, NULL, NULL, NULL);
_native_in_syscall--;
DEBUG("_native_lpm_sleep: returned: %i\n", nfds);
if (nfds != -1) {
/* uart ready, handle input */
/* TODO: switch to ISR context */
_native_handle_uart0_input();
}
else if ((errno == EAGAIN) || (errno == EWOULDBLOCK)) {
/* would block / resource unavailable .. it appears a
* contended socket can show this behavior sometimes */
_native_in_syscall++;
warn("_native_lpm_sleep: select()");
_native_in_syscall--;
return;
}
else if (errno != EINTR) {
/* select failed for reason other than signal */
err(EXIT_FAILURE, "lpm_set(): select()");
}
/* otherwise select was interrupted because of a signal, continue below */
#else
_native_in_syscall++; // no switching here
pause();
_native_in_syscall--;
#endif
if (_native_sigpend > 0) {
DEBUG("\n\n\t\treturn from syscall, calling native_irq_handler\n\n");
_native_in_syscall++;
_native_syscall_leave();
}
}
void _native_lpm_sleep()
{
#ifdef MODULE_UART0
int nfds;
/* set fds */
FD_ZERO(&_native_rfds);
nfds = _native_set_uart_fds();
nfds++;
_native_in_syscall++; // no switching here
nfds = select(nfds, &_native_rfds, NULL, NULL, NULL);
_native_in_syscall--;
DEBUG("_native_lpm_sleep: returned: %i\n", nfds);
if (nfds != -1) {
/* uart ready, handle input */
/* TODO: switch to ISR context */
_native_handle_uart0_input();
}
else if (errno != EINTR) {
/* select failed for reason other than signal */
err(1, "lpm_set(): select()");
}
/* otherwise select was interrupted because of a signal, continue below */
#else
_native_in_syscall++; // no switching here
pause();
_native_in_syscall--;
#endif
if (_native_sigpend > 0) {
DEBUG("\n\n\t\treturn from syscall, calling native_irq_handler\n\n");
_native_in_syscall++;
_native_syscall_leave();
}
}
