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#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include "libvxi11client.h"
#define IDENTIFY "*IDN?"
static char* geterrorstring(int errorcode) {
switch (errorcode) {
case 0:
return "invalid state (not connected) or no response from server";
case -4:
return "invalid link identifier";
case -6:
return "channel not established";
case -8:
return "operation not supported";
case -9:
return "out of resources";
case -11:
return "device locked by another link";
case -12:
return "no lock held by this link";
case -29:
return "channel already established";
default:
return "unknown error code";
}
}
static void interruptcallback(char* handle) {
printf("Interrupt fired\n");
}
int main(int argc, char *argv[]) {
printf("VXI-11 test client\n");
if (argc != 2) {
printf("usage; %s <host>\n", argv[0]);
exit(1);
}
vxi11_start_interrupt_server(interruptcallback);
VXI11Context ctx;
int err = 0;
if ((err = vxi11_open(&ctx, argv[1], NULL)) > 0) {
/**
* Basic tests
*/
// write some bytes
int byteswritten = vxi11_write(&ctx, IDENTIFY, sizeof(IDENTIFY), false, false);
if (byteswritten >= 0)
printf("Wrote %d bytes\n", byteswritten);
else
printf("Error writing data\n");
// read some bytes
unsigned int reason;
char buffer[1024];
int bytesread = vxi11_read(&ctx, buffer, sizeof(buffer), false, false, 0, &reason);
if (bytesread >= 0)
printf("Read %d bytes, %s\n", bytesread, buffer);
else
printf("Error reading data\n");
// trigger
if (vxi11_trigger(&ctx, false) > 0)
printf("triggered\n");
// clear
if (vxi11_clear(&ctx, false) > 0)
printf("cleared\n");
// abort
if ((err = vxi11_abort(&ctx)) > 0)
printf("aborted\n");
else
printf("abort failed; %s\n", geterrorstring(err));
// lock
if ((err = vxi11_lock(&ctx, false)) > 0)
printf("locked\n");
// unlock
if ((err = vxi11_unlock(&ctx)) > 0)
printf("unlocked\n");
// remote
if ((err = vxi11_remote(&ctx, false)) > 0)
printf("remote'd\n");
// local
if ((err = vxi11_local(&ctx, false)) > 0)
printf("local'd\n");
// read the status byte
int statusbyte = vxi11_readstatusbyte(&ctx, false);
if (statusbyte >= 0)
printf("Status byte is 0x%02x\n", statusbyte);
else
printf("Error reading status byte\n");
/**
* Locking tests
*/
// try locking twice
printf("-- Locking twice --\n");
if ((err = vxi11_lock(&ctx, false)) > 0) {
printf("locked\n");
if ((err = vxi11_lock(&ctx, false)) > 0) {
printf("locked again!!\n");
exit(1);
}
else {
printf("Second lock failed; %s\n", geterrorstring(err));
}
}
if ((err = vxi11_unlock(&ctx)) > 0)
printf("unlocked\n");
else {
printf("error unlocking; %s\n", geterrorstring(err));
exit(1);
}
printf("\n");
// try unlocking unlocked device
printf("-- Unlocking when unlocked --\n");
if ((err = vxi11_unlock(&ctx)) > 0) {
printf("Unlocked!!\n");
exit(1);
}
else
printf("error unlocking; %s\n", geterrorstring(err));
printf("\n");
// Interrupt channel tests
printf("-- Testing interrupt channel --\n");
// create interrupt channel
if ((err = vxi11_create_intr_chan(&ctx)) > 0) {
printf("Created interrupt channel\n");
// enable interrupts
if ((err = vxi11_enable_srq(&ctx, true, "handle")) > 0)
printf("Enabled interrupts\n");
else
printf("Error enabling interrupts; %s\n", geterrorstring(err));
sleep(10);
// disable interrupts
if ((err = vxi11_enable_srq(&ctx, false, NULL)) > 0)
printf("Disabled interrupts\n");
else
printf("Error disabling interrupts; %s\n", geterrorstring(err));
// destroy interrupt channel
if ((err = vxi11_destroy_intr_chan(&ctx)) > 0)
printf("Destroyed interrupt channel\n");
else
printf("Error destroying interrupt channel; %s\n", geterrorstring(err));
}
else
printf("Error creating interrupt channel; %s\n", geterrorstring(err));
printf("\n");
// docmd
if ((err = vxi11_docmd(&ctx, 0x00, false)) > 0)
printf("did command, should fail!\n");
else
printf("Error calling docmd; %s\n", geterrorstring(err));
// close
if ((err = vxi11_close(&ctx) > 0))
printf("Closed\n");
vxi11_stop_interrupt_server();
}
else {
printf("Error opening device; %s\n", geterrorstring(err));
exit(1);
}
return 0;
}
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