int main(int argc, char** argv) {
int status, pid;
argv++;
struct timeval before;
gettimeofday(&before, NULL);
pid = fork();
if(pid == 0) {
int error = execvp(argv[0], argv);
if(error == -1) {
if(errno == ENOENT) {
printf("Filename or path not found.\n");
return errno;
}
else return errno;
}
}
wait(&status);
struct rusage usage;
struct timeval after;
gettimeofday(&after, NULL);
getrusage(RUSAGE_CHILDREN, &usage);
printf("\nChild %d died with status %d.\n\n", pid, status);
long int cputime = (usage.ru_stime.tv_sec * 1000) + (usage.ru_stime.tv_usec / 1000);
long int usertime = (usage.ru_utime.tv_sec * 1000) + (usage.ru_utime.tv_usec / 1000);
long int realtime = ((after.tv_sec * 1000) + (after.tv_usec / 1000)) - ((before.tv_sec * 1000) + (before.tv_usec / 1000));
printf("Process statistics: \n");
printf(" Elapsed Time: %ld ms\n", realtime);
printf(" CPU Time: %ld ms\n", cputime);
printf(" User Time: %ld ms\n", usertime);
printf(" Involuntary Context Switches: %ld\n", usage.ru_nivcsw);
printf(" Voluntary Context Switches: %ld\n", usage.ru_nvcsw);
printf(" Page Faults: %ld\n", usage.ru_majflt);
printf(" Reclaimed Page Faults: %ld\n", usage.ru_minflt);
struct processinfo* info = malloc(sizeof(struct processinfo));
testCall2(info);
printf("_________________________________\n");
printf("|\tProcess statistics\t|\n");
printf("|PID: %d\t\t\t|\n", info->pid);
printf("|Parent PID: %d\t\t|\n", info->parent_pid);
printf("|Youngest child PID: %d\t\t|\n", info->youngest_child);
printf("|Oldest sibling PID: %d\t|\n", info->older_sibling);
printf("|Start time: %lld\t|\n", info->start_time);
printf("|User time: %lld\t\t\t|\n", info->user_time);
printf("|System time: %lld\t\t\t|\n", info->sys_time);
printf("|Child user time: %lld\t\t|\n", info->cutime);
printf("|Child system time: %lld\t\t|\n", info->cstime);
printf("_________________________________\n");
free(info);
return status;
}
int main () {
/*
long test2;
unsigned short target=0;
int numSmited=0;
int smitedPids[100]={0};
long pidState[100]={0};
printf("for target 0 The return values of the system calls are:\n");
printf("\tcs3013_syscall1: %ld\n", testCall1());
test2=testCall2(&target,&numSmited,smitedPids,pidState);
printf("\tcs3013_syscall2: %ld\n", test2);
if(test2==0){
printf("\tcs3013_syscall3: %ld\n", testCall3(&numSmited,smitedPids,pidState));
}
else{
printf("\ttestcall2 error\n");
}
*/
unsigned short target2=1001;
int numSmited2=0;
int smitedPids2[100];
long pidState2[100];
long test2;
int index;
//printf("\nfor target 1001 The return values of the system calls are:\n");
//printf("\tcs3013_syscall1: %ld\n", testCall1());
test2=testCall2(&target2,&numSmited2,smitedPids2,pidState2);
//printf("\tcs3013_syscall2: %ld\n", test2);
//printf("\tcs3013_syscall2: %ld\n", test2);
if(test2!=0){
printf("test2 error\n");
}
else{
printf("%d ",numSmited2);
for(index=0;index<numSmited2;index++){
printf("%d %ld ",smitedPids2[index],pidState2[index]);
//printf("at %d pid is %d, state is %ld\n",index,smitedPids2[index],pidState2[index]);
}
}
// if(test2==0){
// printf("\tcs3013_syscall3: %ld\n", testCall3(&numSmited2,smitedPids2,pidState2));
// }else{
// printf("\ttestcall2 error\n");
// }
return 0;
}
