MultiMedia/cdxlplay/usleep_aros.c

   1 #include "cdxlplay.h"
   2 #include <exec/exec.h>
   3 #include <devices/timer.h>
   4 #include <proto/exec.h>
   5 #ifdef __AMIGAOS4__
   6 #include <inline4/exec.h>
   7 #endif
   8
   9 static struct MsgPort *timer_mp;
  10 static struct timerequest *timer_io;
  11 static struct Device *timer_base;
  12
  13 int setup_usleep(void) {
  14         timer_mp = CreateMsgPort();
  15         timer_io = (struct timerequest *)CreateIORequest(timer_mp, sizeof(*timer_io));
  16         if (timer_io) {
  17                 if (!OpenDevice("timer.device", UNIT_MICROHZ, &timer_io->tr_node, 0)) {
  18                         timer_base = timer_io->tr_node.io_Device;
  19                         return 1;
  20                 }
  21         }
  22         return 0;
  23 }
  24
  25 void cleanup_usleep(void) {
  26         if (timer_base) {
  27                 CloseDevice(&timer_io->tr_node);
  28                 timer_base = NULL;
  29         }
  30         DeleteIORequest((struct IORequest *)timer_io);
  31         timer_io = NULL;
  32         DeleteMsgPort(timer_mp);
  33         timer_mp = NULL;
  34 }
  35
  36 int usleep(useconds_t usec) {
  37         timer_io->tr_node.io_Command = TR_ADDREQUEST;
  38         timer_io->tr_time.tv_sec = usec / 1000000UL;
  39         timer_io->tr_time.tv_usec = usec % 1000000UL;
  40         return DoIO(&timer_io->tr_node) ? -1 : 0;
  41 }