/*
* Allocate_Misc.c
*
* Example of allocating a miscellaneous resource
* We will allocate the serial resource and wait till
* CTRL-C is pressed. While we are waiting, the
* query_serial program should be run. It will try
* to open the serial device and if unsuccessful, will
* return the name of the owner. It will be us!
*
* Compile with SAS C 5.10 lc -b1 -cfistq -v -y -L
*
* Run from CLI only
*/
#include <exec/types.h>
#include <exec/memory.h>
#include <dos/dos.h>
#include <resources/misc.h>
#include <clib/exec_protos.h>
#include <clib/misc_protos.h>
#include <stdio.h>
#ifdef LATTICE
int CXBRK(void) { return(0); } /* Disable SAS CTRL/C handling */
int chkabort(void) { return(0); } /* really */
#endif
struct Library *MiscBase = NULL;
void main(int argc, char **argv)
{
UBYTE *owner = NULL; /* owner of misc resource */
if (!(MiscBase= (struct Library *)OpenResource(MISCNAME)))
printf("Cannot open %s\n",MISCNAME);
else
{
/* Allocate both pieces of the serial hardware */
if ((owner = AllocMiscResource(MR_SERIALPORT,"Serial Port Hog")) == NULL)
{
if ((owner = AllocMiscResource(MR_SERIALBITS,"Serial Port Hog")) == NULL)
{
/* Wait for CTRL-C to be pressed */
printf("\nWaiting for CTRL-C...\n");
Wait(SIGBREAKF_CTRL_C);
/* We're back */
/* Deallocate the serial port register */
FreeMiscResource(MR_SERIALBITS);
}
else
printf("\nUnable to allocate MR_SERIALBITS because %s owns it\n",owner);
/* Deallocate the serial port */
FreeMiscResource(MR_SERIALPORT);
}
else
printf("\nUnable to allocate MR_SERIALPORT because %s owns it\n",owner);
}
}