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Questions - pthreads

Why does pthread_join crash (seg fault) at 306 Joins?

I'm playing around with creating a BUNCH of threads, just see learn a bit more about pthread. I've copied a program I found, and instead of making 1 thread, and joining it, it will create X threads, ...
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ParallelNewB

multithreading

segmentation-fault

pthreads

pthread-join

Votes: 0

Answers: 2

Latest Answer

I shouldn't be running out of threads: Note that this is a system-wide limit, so you could be running out of threads IF you have some other processes with many threads running. On my x86_64 system y...
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Employed Russian

Using a pointer to a Mutex (pthread_mutex_t *) in a structure, Instead of a global Mutex

I'm using a lock (pthread_mutex_t) in a program that launches a number of threads, all threads receives a pointer to a structure, which contains a pointer to this mutex. So there is one initialized mu...
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hugogogo

c

pthreads

mutex

Votes: 0

Answers: 1

Latest Answer

pthread_t *id; id = malloc(sizeof(int) * n); // allocate id[n] id is not an int - it's pthread_t. Should be sizeof(pthread_t). Use a little trick and use the pointer points to. id = malloc(siz...
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KamilCuk

Threaded application fails for 32bit mode while it works fine for 64bit mode

I have a normal server application which hits SIGSEGV during booting. Code involved in SIGSEGV part contains pthread_cond_wait, pthread_setcancelstate, pthread_cond_timedwait, pthread_cleanup_push and...
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Digvijaysingh Gour

c

linux

gcc

pthreads

pthread-join

Votes: 0

Answers: 1

Latest Answer

Function thr() initializes the mutex and condition variable itself, so these are initialized separately by every thread running that function. When there is more than one such thread, that results in...
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John Bollinger

Error: Too few Argument in multithreaded code

I have been trying to implement a multithreaded program, I already tried <thread.h> and the code worked perfectly; but now I have to use <pthread.h> library due to some college project. I ...
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Amin

c++

multithreading

pthreads

Votes: 0

Answers: 1

Latest Answer

There are two problems here. First, the function that is the entry point for a thread as specified by the third argument to pthread_create must accept a void * as an argument and return a void *. Yo...
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dbush

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