Difference between Binary Semaphores and Mutexes

Source code can be found here:

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[hzhpdjk]

Your explanation is so GREAT!
Thank You & we will absolutely wait for new things to learn from you.

[wangstboss]

Your explanation is really good and clear with code examples. Thank you so much!

[animeshkumarsinha]

Concepts detail description are nice 🙂

[narasarajv]

Today I understood clearly with practical example.Thank you...

[nikhilagrawal]

Thank you so much for this video. It was very knowledgable.

[i_am_wiz]

Brilliant explanation with illustration

[tukaramgaikwad]

Thank you for this video It cleared diff between Binary semaphore and Mutex

[mikmik]

Undefined behavior almost cost me my OS HW thank god for resubmission

[temmmbebkd]

It's been along time hope you are doig ok teacher 😇

[utkarshtripathi]

A very very thank you for this informative video

[bhrt]

Great
Please do tutorials on GLib
If possible suggest

[Somali-ivpu]

Hey mate where have you been the last months. I wanted to thank you you videos are the best for c intermediate level learning plus i was wondering if you are planning on doing some socket programming in c for linux

[johnduraisinghy]

Hi,
I have tried in my lab to unlock a mutex in a different thread and it was working completely fine for me.
But when I create a mutex with type as PTHREAD_MUTEX_ERRORCHECK, unlocking in different thread throws error in return code.
Now my question,
1. How unlocking a normal(default init ) mutex in different thread works fine for me. Any possible reasons ?
I tried with while (1) loop to lock in in thread and unlock in another thread for 2 hrs and did not see any issue in it.

[chetan]

Semaphore maintains a queue for all those threads that tried to enter the critical section when the semaphore variable is 0. So every thread gets a chance in the end in a fair manner (FIFO). While mutex doesn't provide such functionality, and randomly wakeup the thread. Is my statement correct?

[natiiim]

could you make at least one video with an exercise where you combine the use of semaphores and mutexes? In my classes they tend to put problems like that in exams >_<

[backendengineering]

QQ: First thread enters the routine1 and then takes the lock. Now unless this thread calls unlock on this lock, how can any other thread enter the critical section(as another thread has the lock and in the critical section)?? But, in your case I see a lot of 'Current value is:.." printed in the console. Am I missing something here?
Guess: Is even this is a part of undefined behaviour?

[chetan]

When the semaphore value is initialised to 0 and a thread called sem_post() thrice, then the value of the semaphore becomes 3? When initialised to 0, should it be called as binary semaphore or counting semaphore?

[dhruvshah]

for some reason my mutex code is not breaking? don't know if this has to do with the new M1 mac ARM chips or not

[shamanthhebbar]

in case the semaphore value is greater than 1 and multiple threads are executing the critical section will it lead to a race condition?

[tripiper]

but how you lock one thread function and then the other function can be executed if the first lock is not already unlocked?