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nihcl-3.0
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stackproc.c
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C/C++ Source or Header
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1990-05-19
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/* Test class StackProc
THIS SOFTWARE FITS THE DESCRIPTION IN THE U.S. COPYRIGHT ACT OF A
"UNITED STATES GOVERNMENT WORK". IT WAS WRITTEN AS A PART OF THE
AUTHOR'S OFFICIAL DUTIES AS A GOVERNMENT EMPLOYEE. THIS MEANS IT
CANNOT BE COPYRIGHTED. THIS SOFTWARE IS FREELY AVAILABLE TO THE
PUBLIC FOR USE WITHOUT A COPYRIGHT NOTICE, AND THERE ARE NO
RESTRICTIONS ON ITS USE, NOW OR SUBSEQUENTLY.
Author:
K. E. Gorlen
Bg. 12A, Rm. 2033
Computer Systems Laboratory
Division of Computer Research and Technology
National Institutes of Health
Bethesda, Maryland 20892
Phone: (301) 496-1111
uucp: uunet!nih-csl!kgorlen
Internet:kgorlen@alw.nih.gov
Function:
Modification History:
$Log: stackproc.c,v $
* Revision 3.0 90/05/20 00:30:00 kgorlen
* Release for 1st edition.
*
*/
static char rcsid[] = "$Header: /afs/alw.nih.gov/unix/sun4_40c/usr/local/src/nihcl-3.0/share/test/RCS/stackproc.c,v 3.0 90/05/20 00:30:00 kgorlen Rel $";
#include "StackProc.h"
#include "SharedQueue.h"
#include "Scheduler.h"
#include "String.h"
class TestStackProc : public StackProc {
protected:
TestStackProc(const char* name, stackTy* bottom, int pri, SharedQueue& in, SharedQueue& out);
public:
static TestStackProc* create(const char* name, int pri, SharedQueue& in, SharedQueue& out);
};
TestStackProc::TestStackProc(const char* pname, stackTy* bottom, int pri, SharedQueue& in, SharedQueue& out)
: StackProc(pname,bottom,pri)
{
if (FORK()) return;
while (YES) {
Object* msg = in.next();
cout << "process " << name() << " received " << *msg << endl;
out.nextPut(*msg);
cout << "process " << name() << " sent " << *msg << endl;
}
}
TestStackProc* TestStackProc::create(const char* name, int pri, SharedQueue& in, SharedQueue& out)
{
#ifndef NESTED_TYPES
auto stackTy bottom;
#else
auto Process::stackTy bottom;
#endif
return new TestStackProc(name, &bottom, pri, in, out);
}
main(int /* argc */, char** /* argv */)
{
MAIN_PROCESS(0);
SharedQueue* q0 = new SharedQueue(2);
SharedQueue* qin = q0;
SharedQueue* qout;
for (int i=1; i <= MAXPRIORITY; i++) {
String pname = "P";
pname &= (char)('0'+i);
qout = new SharedQueue(2);
TestStackProc::create(pname,i,*qin,*qout);
qin = qout;
}
String& msg = *new String("THE MESSAGE");
Scheduler::dumpOn(cerr);
q0->dumpOn(cerr);
Scheduler::yield();
q0->nextPut(msg);
cout << *qout->next() << endl;
}