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Notify100.lzh
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Notify.c
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C/C++ Source or Header
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1991-09-25
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5KB
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156 lines
/*
* Notify - the small notification utility
* ⌐ 1991 Stefan Sticht
* freely distributable
*
* To compile with DICE: dcc -r Notify.c -o Notify
*
* V1.00 25 Sep 1991 Stefan Sticht
*/
#define VERSION "V1.00"
#include <stdlib.h>
#include <dos/notify.h>
#include <exec/memory.h>
#include <clib/dos_protos.h>
#include <clib/exec_protos.h>
/*
* some SAS/C specularities, change for other compilers!
*/
#ifdef __SASC
#include <pragmas/dos_pragmas.h> /* pragmas for inline library calls */
#include <pragmas/exec_pragmas.h> /* pragmas for inline library calls */
void chkabort(void) {} /* disable Ctrl-C detect */
#endif
extern struct Library *SYSBase; /* Library base pointer from startup code */
extern struct Library *DOSBase; /* Library base pointer from startup code */
/*
* a string, which will be found by Version
*/
char version[] = "\0$VER: Notify " VERSION;
#define TEMPLATE "File/A,Times/K/N,Quiet/S"
#define OPT_FILE 0
#define OPT_TIMES 1
#define OPT_QUIET 2
#define OPT_COUNT 3
/*
* this array will be filled by ReadArgs()
*/
long options[OPT_COUNT];
void _main(char *line)
{
struct NotifyRequest *notifyrequest;
long rc = 20;
long times = 1;
struct RDArgs *args;
unsigned long sigreceived;
unsigned char signal;
/*
* first check DOS version; we require at least V37
*/
if (DOSBase->lib_Version >= 37l) {
/*
* get command line arguments
*/
if (args = ReadArgs((UBYTE *)TEMPLATE, options, NULL)) {
/*
* alloc public memory for notifyrequest
*/
if (notifyrequest = (struct NotifyRequest *)AllocMem(sizeof(struct NotifyRequest), MEMF_PUBLIC)) {
/*
* alloc a signal
*/
if ((signal = AllocSignal(-1)) != -1l) {
/*
* fill out notifyrequest
*/
notifyrequest->nr_Name = (char *)options[OPT_FILE];
notifyrequest->nr_Flags = NRF_SEND_SIGNAL;
notifyrequest->nr_stuff.nr_Signal.nr_Task = FindTask(NULL);
notifyrequest->nr_stuff.nr_Signal.nr_SignalNum = signal;
/*
* now start a notify
*/
if (StartNotify(notifyrequest) == DOSTRUE) {
rc = 0;
if (options[OPT_TIMES]) times = *((long *)options[OPT_TIMES]);
if (!options[OPT_QUIET]) VPrintf("Notification on %s started...\n", &options[OPT_FILE]);
while (times--) {
/*
* Wait times times for a signal or one time for a break signal
*/
sigreceived = Wait(SIGBREAKF_CTRL_C | (1 << signal));
if (sigreceived & SIGBREAKF_CTRL_C) {
/*
* user pressed or sent Ctrl-C
*/
times = 0;
rc = 5;
if (!options[OPT_QUIET]) PutStr("***Break\n");
}
if ((sigreceived & (1 << signal)) && !options[OPT_QUIET])
PutStr("Notified.\n");
} /* while times */
/*
* remove notify
*/
EndNotify(notifyrequest);
}
else {
/*
* StartNotify returned an error
*/
rc = 10;
PrintFault(IoErr(), "Error");
}
/*
* free allocated signal
*/
FreeSignal((long)signal);
} /* if signal = AllocSignal() */
else if (!options[OPT_QUIET]) PutStr("Couldn't allocate signal!\n");
/*
* free memory of notifyrequest
*/
FreeMem(notifyrequest, sizeof(struct NotifyRequest));
} /* if notifyrequest = AllocMem() */
else if (!options[OPT_QUIET]) PutStr("Couldn't allocate memory!\n");
/*
* free arguments allocated by ReadArgs()
*/
FreeArgs(args);
} /* if args = ReadArgs() */
else {
/*
* wrong number of or wrong arguments
*/
if (!options[OPT_QUIET]) PrintFault(IoErr(), NULL);
}
} /* if (DOSBase->dl_lib.lib_Version > 37l) */
exit(rc);
}