static void opd_shutdown(struct op_buffer_head * buf, size_t size, struct op_note * nbuf, size_t nsize)
{
ssize_t count = -1;
ssize_t ncount = -1;
if (fcntl(devfd, F_SETFL, fcntl(devfd, F_GETFL) | O_NONBLOCK) < 0) {
perror("Failed to set non-blocking read for device: ");
exit(EXIT_FAILURE);
}
while (ncount < 0)
ncount = op_read_device(notedevfd, nbuf, nsize);
if (ncount > 0)
opd_do_notes(nbuf, ncount);
while (1) {
count = op_read_device(devfd, buf, size);
if (count < 0 && errno == EAGAIN)
break;
verbprintf(vmisc, "Shutting down, state %d\n", buf->state);
opd_do_samples(buf);
}
}
static void opd_do_read(struct op_buffer_head * buf, size_t size, struct op_note * nbuf, size_t nsize)
{
while (1) {
ssize_t count = -1;
ssize_t ncount = -1;
while (count < 0)
count = op_read_device(devfd, buf, size);
while (ncount < 0)
ncount = op_read_device(notedevfd, nbuf, nsize);
opd_do_notes(nbuf, ncount);
opd_do_samples(buf);
if (signal_alarm) {
signal_alarm = 0;
opd_alarm();
}
if (signal_hup) {
signal_hup = 0;
opd_sighup();
}
if (signal_term)
opd_sigterm();
if (buf->state == STOPPING) {
verbprintf(vmisc, "Shutting down by request.\n");
opd_shutdown(buf, size, nbuf, nsize);
return;
}
}
}
/**
* opd_do_read - enter processing loop
* @param buf buffer to read into
* @param size size of buffer
*
* Read some of a buffer from the device and process
* the contents.
*/
static void opd_do_read(char * buf, size_t size)
{
opd_open_pipe();
while (1) {
ssize_t count = -1;
/* loop to handle EINTR */
while (count < 0) {
count = op_read_device(devfd, buf, size);
/* we can lose an alarm or a hup but
* we don't care.
*/
if (signal_alarm) {
signal_alarm = 0;
opd_alarm();
}
if (signal_hup) {
signal_hup = 0;
opd_sighup();
}
if (signal_term)
opd_sigterm();
if (signal_child)
opd_sigchild();
if (signal_usr1) {
signal_usr1 = 0;
perfmon_start();
}
if (signal_usr2) {
signal_usr2 = 0;
perfmon_stop();
}
if (is_jitconv_requested()) {
verbprintf(vmisc, "Start opjitconv was triggered\n");
opd_do_jitdumps();
}
}
opd_do_samples(buf, count);
}
opd_close_pipe();
}
/**
* opd_do_read - enter processing loop
* @param buf buffer to read into
* @param size size of buffer
*
* Read some of a buffer from the device and process
* the contents.
*/
static void opd_do_read(char * buf, size_t size)
{
while (1) {
ssize_t count = -1;
/* loop to handle EINTR */
while (count < 0) {
count = op_read_device(devfd, buf, size);
/* we can lose an alarm or a hup but
* we don't care.
*/
if (signal_alarm) {
signal_alarm = 0;
opd_alarm();
}
if (signal_hup) {
signal_hup = 0;
opd_sighup();
}
if (signal_term)
opd_sigterm();
if (signal_usr1) {
signal_usr1 = 0;
perfmon_start();
}
if (signal_usr2) {
signal_usr2 = 0;
perfmon_stop();
}
}
opd_do_samples(buf, count);
}
}
