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Fish 'n' More 2
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pktstuff.c
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C/C++ Source or Header
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1990-10-27
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2KB
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73 lines
/* misc.c - support routines - Phillip Lindsay (C) Commodore 1986
* You may freely distribute this source and use it for Amiga Development -
* as long as the Copyright notice is left intact.
*
* 30-SEP-86
*/
#include <exec/types.h>
#include <exec/nodes.h>
#include <exec/lists.h>
#include <exec/ports.h>
#include <libraries/dos.h>
#include <libraries/dosextens.h>
#include "tape.h"
#if defined AZTEC_C
#include <functions.h>
#elif defined LATTICE
#include <proto/exec.h>
#endif
/* returnpkt() - packet support routine
* here is the guy who sends the packet back to the sender...
* (I modeled this just like the BCPL routine [so its a little redundant] )
*/
void returnpkt(
struct DosPacket *packet,
ULONG res1,
ULONG res2)
{
struct Message *mess;
struct MsgPort *replyport;
struct Process *myproc;
packet->dp_Res1 = res1;
packet->dp_Res2 = res2;
replyport = packet->dp_Port;
mess = packet->dp_Link;
myproc = (struct Process *) FindTask(0L);
packet->dp_Port = &myproc->pr_MsgPort;
mess->mn_Node.ln_Name = (char *) packet;
mess->mn_Node.ln_Succ = NULL;
mess->mn_Node.ln_Pred = NULL;
PutMsg(replyport,mess);
}
/*
* taskwait() ... Waits for a message to arrive at your port and
* extracts the packet address which is returned to you.
*/
struct DosPacket *taskwait(void)
{
struct Process *myproc;
struct MsgPort *myport;
struct Message *mymess;
myproc = (struct Process *) FindTask(0L);
myport = &myproc->pr_MsgPort;
WaitPort(myport); /* wait for packet */
mymess = (struct Message *) GetMsg(myport);
/* give them the pointer to the packet */
return((struct DosPacket *) mymess->mn_Node.ln_Name);
}
/* end of misc.c */