Introduction To Threads (pthreads) | C Programming Tutorial

[Shadowll]

I just learned about threads about 4 days ago. You can’t believe how much better a 13+ min video is than my 1 hour lecture in explaining threads.

[dianafarhat]

There are very few tutorials on this topic. Thank you for your work!

[hengyili]

You are better than my professor in terms of explaining things. Thank you !!!

[safarmaihoon]

You know what!! This is better than hours of lectures. So crisp and to the damn point! 👏👏👏👏

Now I can start reading other references.

Thanks for the video.

[atchau]

13mins video is more valuable than 2 hours lecture on my university :D

[mansbjork]

We're studying this at university right now and I have to say this is very much useful. It's almost clear after the first watch only.

[ButteryCowEgg]

Just wanted to say that I found your channel today and you have done some amazing work on your channel

[cptmnxl]

You Sir are an angel, I've been stuck trying to understand how to use threads in C for SOOOO LONG and this tutorial makes so much sense, i was actually able to code along and it works and i get it ! AAAAH I'm so relieved, it finally makes sense, THANK YOU SO MUCH !

[GeneTechAgency]

They way you explains with examples...Marvelous sir

[alvarobarboza]

something that I particularly liked is .. the comparison you do at the end, this shows how useful multi-threading is

[p_molnar]

best ASCII presentation I've seen so far.

[theyayaa]

I am listing this channel as a reference in my school project because I have learned a ton of c from here. Thank you!

[emmadhamid]

Defined greatly n precisely ✨ best single shortest video to learn whole fkn threads topic …

[Mtlik]

I've been playing around with OpenMP in VS and it works great for optimizing loops for parallel execution, where the threads seem to execute in random order each time the program is run. However, after looking at the documentation a little more attentively, there are a number of command parameters associated with the pragmas that would make life easier rather than trying to play around delay loops, ordering and placements. Great intro to threading.

[AibekDandaev]

wanted to say that you've done some amazing work on your channel

[HuntingKingYT]

You can also get the return value, you just have to pass a pointer to the place where the return value of the function will be put at (the result is also statically a void pointer!) as the second parameter to pthread_join():

void* add(void* param) {
long* result = (long*)malloc(sizeof(long));
*result = *(long*)param + 1;
return result;
}
int main() {
pthread_t thread1;
long value = 10;
pthread_create(&thread1, NULL, &add, &value);
long* result;
pthread_join(thread1, (void**)&result); // output pointer to a `long` pointer!
printf("result: %ld\n", *result); // 11
free(result);
return 0;
}

[adityak]

I think i have clear understanding about pthreads post watching this video....thanks for the free tuts.

[OdinRues]

Multithreading it’s not about executing multiple instructions at the same time. It’s about sharing resource beetween them.

[raffayylsamuill]

Really thank you for this great explanation

[baruchben-david]

For some of us, we also have to add a flag to the linker: -lpthread.