MyThreadingLibrary

Introduction

This repo is an implementation of kernel-level (one-one) threads and user-level (many-one) threads in C language like pthreads on Linux System (Ubuntu).

Implemented Functions

The functions implemented are

mythread_create()
mythread_join()
mythread_kill()
mythread_exit()
mythread_spin_init()
mythread_spin_lock()
mythread_spin_unlock()
mythread_spin_trylock()

// additional function 
mythread_self()

working of function mythread_xyz is same as pthread_xyz function. in addition to these functions, there are many functions which library needs to call internally and a set_active_thread_signal() function which will be needed to set custom signal handlers for various threads in user level threads model.

Compilation

Any of many-one and one-one thread implementation consists of 2 files - a mythread.c and mythread.h. A single C file is made instead of dividing code into multiple files to make it a library. Use this command to create an object file from the source

gcc -c -Wall mythread.c

This will create an object file mythread.o To link it with your program, say main_program.c, use

gcc -c -Wall main_program.c
gcc main_program.o mythread.o

This will create the executable file a.out which you can run.

Alternately, one may use ar command to create an archive from library and then link it with main program main_program.c.

Testing Code

To test the functions in library, there are already some test files provided in directory testing_code/. Each file tests a basic functionality which is well explained in comments in that file.