mirror of https://github.com/weiju/amiga-stuff
59 lines
1.6 KiB
C
59 lines
1.6 KiB
C
/*
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* timer.c - Small example program to see how the timer.device
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* works
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <exec/types.h>
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#include <exec/ports.h>
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#include <devices/timer.h>
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#include <clib/exec_protos.h>
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#include <clib/alib_protos.h>
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struct Library *TimerBase = NULL;
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int main(int argc, char **argv)
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{
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struct MsgPort *timer_port = NULL;
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struct timerequest *timer_io = NULL;
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struct timeval time1;
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ULONG mics, secs;
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BYTE error = 0;
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timer_port = CreatePort(NULL, 0);
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if (!timer_port) {
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printf("could not create message port\n");
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return 0;
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}
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timer_io = (struct timerequest *) CreateExtIO(timer_port,
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sizeof(struct timerequest));
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if (!timer_io) {
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printf("could not create create timerequest object\n");
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DeletePort(timer_port);
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return 0;
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}
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error = OpenDevice(TIMERNAME, UNIT_MICROHZ, (struct IORequest *) timer_io, 0);
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if (error) {
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printf("could not open timer.device\n");
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} else {
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TimerBase = (struct Library *) timer_io->tr_node.io_Device;
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timer_io->tr_node.io_Command = TR_GETSYSTIME;
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DoIO((struct IORequest *) timer_io);
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mics = timer_io->tr_time.tv_micro;
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secs = timer_io->tr_time.tv_secs;
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printf("micros: %lu secs: %lu\n", mics, secs);
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}
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/* cleanup */
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if (!CheckIO((struct IORequest *) timer_io)) {
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AbortIO((struct IORequest *) timer_io);
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}
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WaitIO((struct IORequest *) timer_io);
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TimerBase = NULL;
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CloseDevice((struct IORequest *) timer_io);
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if (timer_io) DeleteExtIO((struct IORequest *) timer_io);
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if (timer_port) DeletePort(timer_port);
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return 0;
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}
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