The `pthread_join()` function is part of pthread.h used to wait for another thread to finish executing.
A call to pthread_join(t, ...) suspends execution of the caller's thread. It does not return until thread t has finished executing.
Questions tagged [pthread-join]
257 questions
0
votes
1 answer
C++ : Passing threadID to function anomaly
I implemented a concurrent queue with two methods: add (enqueue) & remove (dequeue).
To test my implementation using 2 threads, I generated 10 (NUMBER_OF_OPERATIONS) random numbers between 0 and 1 in a method called getRandom(). This allows me to…
John
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- 3
0
votes
1 answer
fork in multithread process, allocated memory for thread
In the code below, there is no memory leak in parent and child as far as I checked with valgrind.
Child total heap usage: 1 allocs, 1 frees, 272 bytes allocated
Parent total heap usage: 2 allocs, 2 frees, 1,296 bytes allocated
I have two…
user4612022
0
votes
1 answer
Memory leakage in windows pthread. `pthread_join` does not deallocate memory
The simple test:
void testMemoryLeak_PthreadCreateJoin(void)
{
auto taskFunction = [](void*args) -> void*
{
return nullptr;
};
pthread_t pth;
int err = pthread_create(&pth, /*attr*/nullptr, taskFunction, /*args*/nullptr);
…
kyb
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1 answer
pthread_join segmentation fault in C
The purpose of my program is to open a directory, and for every file within it, create a thread for it and put it's formation in a struct array (files). But even if I change those functions to only {return NULL;} I still get a segmentation fault…
asdasda
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1 answer
Is it mandatory to join a non-detached thread?
I create a non-detached thread which can be stopped through 2 different methods. One of them (stop()) provides a sync interface by joining to the spawned thread while the other one (stopAsync()) just sets the control variable m_continue to false and…
Murat Şeker
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0
votes
1 answer
My loop doesnt run properly in multi-threading
I try to write a multi-thread program, and meet some problems.
After I run main.c, and I get
i: 0
new thread 0
new thread 1
i: 1
i: 1
//main.c
#include
#include
#include
void* routine(void* arg)
{
int…
Shawn Huang
- 187
- 2
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2 answers
Questions on pthread_join() and pthread_create()
This is the declaration of pthread_create:
int pthread_create(pthread_t *thread, const pthread_attr_t *attr,void *
(*start_routine) (void *), void *arg);
it contains a function start_routine.
So when we call pthread_create, the function…
BobHU
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0
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1 answer
What happens if one deletes an object with a running pthread?
I have an object that uses pthreads. Its constructor creates several threads.
The class's destructor calls pthread_join on all these threads.
What would happen during a delete, if it didn't? I.e., what happens to a non-terminated thread, if the…
Christian Pedersen
- 23
- 2
0
votes
1 answer
pthread_join() not working
I have got troubles with my code.
The following code starts n threads that compete to find the max value of each diagonal of n different matrices.
#include
#include
#include
#include
#include…
Giulio Paoli
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votes
1 answer
Creating and Joining pthreads using vector::iterator
Working on a simple project to tally multiple txt files using threads. The only error I'm getting in compilation involves the vector::iterator being used in the pthread_join loop.
The error is:
error: invalid conversion from long…
user3776749
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0
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0 answers
How to achieve contention condition in reader writer program? what does it indicate? I have my code but then it indicates something wrong.
I want to add a contention condition in this code in order to
understand the nature of threads. But i am not able to get it through
this code.
#include
#include
#include
…
Learner
- 512
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- 23
0
votes
1 answer
single thread and multiple thread
Would anyone know a way of explaining or could you direct me to some material regarding single Thread and multiple thread? I don't understand them at all. Every explanation I read is in very complicated English.
I want to understand them completely.…
Rajkumar
- 11
- 1
0
votes
2 answers
Simple example for pthread_join deadlock
I am looking for a very simple example to demonstrate a deadlock using pthread_join; however, this is not trivial.
I started with this:
void* joinit(void* tid)
{
pthread_t* tid_c = (pthread_t*)tid;
int retval = pthread_join(*tid_c, NULL);
…
今天春天
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0
votes
1 answer
Debian pthread_join bus error
I am sitting on a Beaglebone Black and having problem with pthread_join, which gives me Bus error.
See the following code below. This is taken directly from a Youtube-tutorial on pthreads.
#include
#include
#include…
Pavoo
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0
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3 answers
Trouble with signal catching and thread termination - C
I'm writing a program in c, which make use of threads, and i also want to catch Ctrl+C signal from the user. So, before i go multithreading, i make the signal catching.
My main thread (i mean besides the actual main thread that the program runs on),…
Adiel
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