jehanne/qa/kern/getpid.c

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/*
* This file is part of Jehanne.
*
* Copyright (C) 2016 Giacomo Tesio <giacomo@tesio.it>
*
* Jehanne is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, version 2 of the License.
*
* Jehanne is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Jehanne. If not, see <http://www.gnu.org/licenses/>.
*/
#include <u.h>
#include <lib9.h>
void
main(void)
{
int pid;
rfork(RFNAMEG);
pid = getmainpid(); // this comes from exec() syscall
if(getpid() != pid){
print("FAIL: getpid() != getmainpid()\n");
exits("FAIL");
}
rfork(RFNOMNT);
if(getpid() != pid){
print("FAIL: rfork(RFNOMNT); getpid() != getmainpid()\n");
exits("FAIL");
}
rfork(RFNOMNT|RFCNAMEG);
if(getpid() != pid){
print("FAIL: rfork(RFNOMNT|RFCNAMEG)); getpid() != getmainpid()\n");
exits("FAIL");
}
print("PASS\n");
exits("PASS");
}