int main(){
int i=0;
pid_t pid;
/*if( (pid = fork() ) != 0){
printf("%d\n\n",pid);
printf("Error : child process creation unsuccessful\n");
///_exit(0);
}*/
pid=fork();
printf("Outside pid : %d\n\n",pid);
if(pid == 0){
printf("\n\n\n");
childProcess();
//sleep(10000000);
printf("Exiting from child\n");
_exit(0);
}
else{
printf("\n\n\n");
parentProcess();
//sleep(10000000);
printf("Exiting from parent\n");
_exit(0);
}
return 0;
}
int main(int argc, char *argv[]){
int pid;
if((pid=fork()) == 0)
{
childProcess();
}else{
parentProcess();
}
}
static bool
IsSameBinaryAsParentProcess()
{
mozilla::Maybe<DWORD> parentPid = mozilla::nt::GetParentProcessId();
if (!parentPid) {
// If NtQueryInformationProcess failed (in GetParentProcessId()),
// we should not behave as the launcher process because it will also
// likely to fail in child processes.
MOZ_CRASH("NtQueryInformationProcess failed");
}
nsAutoHandle parentProcess(::OpenProcess(PROCESS_QUERY_LIMITED_INFORMATION,
FALSE, parentPid.value()));
if (!parentProcess.get()) {
// If OpenProcess failed, the parent process may not be present,
// may be already terminated, etc. So we will have to behave as the
// launcher proces in this case.
return false;
}
WCHAR parentExe[MAX_PATH + 1] = {};
DWORD parentExeLen = mozilla::ArrayLength(parentExe);
if (!::QueryFullProcessImageNameW(parentProcess.get(), PROCESS_NAME_NATIVE,
parentExe, &parentExeLen)) {
// If QueryFullProcessImageNameW failed, we should not behave as the
// launcher process for the same reason as NtQueryInformationProcess.
MOZ_CRASH("QueryFullProcessImageNameW failed");
}
WCHAR ourExe[MAX_PATH + 1] = {};
DWORD ourExeOk = ::GetModuleFileNameW(nullptr, ourExe,
mozilla::ArrayLength(ourExe));
if (!ourExeOk || ourExeOk == mozilla::ArrayLength(ourExe)) {
// If GetModuleFileNameW failed, we should not behave as the launcher
// process for the same reason as NtQueryInformationProcess.
MOZ_CRASH("GetModuleFileNameW failed");
}
mozilla::Maybe<bool> isSame =
mozilla::DoPathsPointToIdenticalFile(parentExe, ourExe,
mozilla::eNtPath);
if (!isSame) {
// If DoPathsPointToIdenticalFile failed, we should not behave as the
// launcher process for the same reason as NtQueryInformationProcess.
MOZ_CRASH("DoPathsPointToIdenticalFile failed");
}
return isSame.value();
}
void makeChildren( const int procTotal, const bool isMutex ) {
for ( int i = 1; i <= procTotal; i++ ) {
Process process = { procTotal, PARENT_ID, isMutex, 0, 0, 0, 0 };
TList* list = ( TList* ) malloc( sizeof( TList ) );
list -> head = NULL;
list -> tail = NULL;
process.list = list;
if ( fork() == 0 ) {
process.localId = i;
childProcess( &process );
break; // To avoid fork() in a child
} else if ( i == procTotal ) { // The last child has been created
parentProcess( &process );
}
}
}
int main(int argc, char ** argv)
{
int pid = fork();
if(pid == 0)
childProcess(argv);
else if(pid != -1)
parentProcess(pid);
else
{
printf("Failure");
}
return 0;
}
// MAIN
int main()
{
int fd[2]; // 2 file decriptors for two sides (output and input)
int pid; // for getting the status of the child to be forked
pipe(fd); // creating a pipe.
pid = fork(); // forking a new child process
if(pid == -1)
printf("Error in creating Child!\n");
else if(pid == 0)
childProcess(fd);
else
parentProcess(fd);
return 0;
}
int main()
{
//allocDealloc(); //The function for allocation and deallocation is there but not used
srand(time(NULL));
pid_t pd1,pd2,pd;
char choice[10];
int variable=0,status;
pd1=fork(); //First child Process
if (pd1<0)
printf("Forking process failed\n");
else if (pd1==0)
childProcess(1);
pd2=fork(); //Second child Process
if (pd2<0)
printf("Forking process failed\n");
else if (pd2==0)
childProcess(2);
parentProcess();
pd=wait(&status); //Waits for any of the two child process to finish
printf("Parent detects child process %d was done first\n",pd);
pd=wait(&status); //Waits for second process to finish
printf("Parent detects child process %d is done \n",pd);
printf("Parent exits\n");
wait_for_time(1); //Wait for a given time
printf("Do you want to execute any file yes or no\n");
scanf("%s",choice);
if (strcmp(choice,"yes")==0)
{
printf("The program is moving over to executing another binary\n"); //executes another file
execute();
}
else
{
printf("That's all");
exit(0);
}
return 0;
}
