static jint tagThreads(ThreadModule * threadModule, jvmtiEnv * jvmti, jlong beginTag) {
jthread * threads;
jvmtiError err;
int i;
err = (*jvmti)->GetAllThreads(jvmti, &threadModule->threadCount, &threads);
CHECK_ERROR_AND_RETURN(jvmti, err, "get all thread error", JNI_ERR);
threadModule->threadInfos = calloc(threadModule->threadCount, sizeof(ThreadInfo));
for (i = 0; i < threadModule->threadCount; i++) {
jvmtiThreadInfo aInfo;
int tag = beginTag + i;
err = (*jvmti)->GetThreadInfo(jvmti, threads[i], &aInfo);
print_if_error(jvmti, err, "get thread info error");
if (err == JVMTI_ERROR_NONE) {
(*jvmti)->SetTag(jvmti, threads[i], tag);
threadModule->threadInfos[i].name = strdup(aInfo.name);
#ifdef DEBUG
ulog("tag thread: %s to %d\n", threadModule->threadInfos[i].name, tag);
#endif
deallocate(jvmti, aInfo.name);
}
}
deallocate(jvmti, threads);
return JNI_OK;
}
int main(){
pid_t child1_pid, child2_pid, child3_pid, child4_pid;
int status = 0;
child1_pid = print_if_error(fork());
if (child1_pid == 0) {
print_id();
printf("Computing binomial coefficient");
}
child2_pid = print_if_error(fork());
if (child2_pid == 0){
sleep(1);
print_id();
process(2, 2);
}
else {
waitpid(child1_pid, &status, 0);
printf("child1 terminated\n");
child3_pid = print_if_error(fork());
if(child3_pid == 0){
sleep(2);
print_id();
process(3, 3);
}
else{
waitpid(child3_pid, &status, 0);
printf("child 3 terminated\n");
}
waitpid(child2_pid, &status, 0);
printf("child2 terminated\n");
child4_pid = print_if_error(fork());
if(child4_pid == 0){
sleep(1);
print_id();
system("ls -l");
} else {
waitpid(child4_pid, &status, 0);
printf("child4 terminated\n");
}
}
return 0;
}
void analyse_if(Cond *ifcond, sym_table *table, char *scope_id, int line_no) {
//Analyse condition
Type c = get_expr_type(ifcond->cond, NULL, table, scope_id, line_no);
if (c != BOOL_TYPE) {
print_if_error(ifcond->cond, c, line_no);
isValid = FALSE;
}
//Analyse then branch
analyse_statements(ifcond->then_branch, table, scope_id);
//Analyse else branch
analyse_statements(ifcond->else_branch, table, scope_id);
}
