StudentFile.cpp

#include "StudentFile.h"


StudentFile:: StudentFile(){

    mtx=NULL;
}
StudentFile::StudentFile(StudentList * p_studentList,const char * filename){
    cout<<"From the constructor\n";
    student_file.open(filename,ios::in);
    studentList = p_studentList;

}

void StudentFile:: set_mutex(std::mutex* my){
    cout<<"hello form the mutex \n";
    mtx=my;
    cout<<"hello form the mutex \n";

}

int StudentFile::processFile(StudentFile* name){
cout<<"from the processFile begin\n";
    //std::lock_guard <std::mutex> lock (name-> *mtx);


    int processed_students = 0;
    if ( !student_file.is_open()) return processed_students;
    string line="";
    string id = "";
    string fname="";
    string mname="";
    string lname="";
    string gpa="";
cout<<"from before the locking\n";
    name->mtx->lock();
    while(getline(student_file,line)) {
        stringstream iss(line);
        getline(iss, id, ',');
        getline(iss, fname, ',');
        getline(iss, mname, ',');
        getline(iss, lname, ',');
        getline(iss, gpa, ',');

        *studentList += new Student(atol(id.c_str()),
                        fname.c_str(),
                        mname.c_str(),
                        lname.c_str(),
                        atof(gpa.c_str()));
        processed_students++;
    }


name->mtx->unlock();
cout<<"From after the unlocking\n";
    return processed_students;


}
int StudentFile::startThread(StudentFile * me)  { return me->processFile(me); }
StudentFile::~StudentFile() {

    if ( student_file.is_open()) {

        student_file.close();

    }

}