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Pthread Join Error 22

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Traveling Pumpkin Problem To find the number of X completed, when can I subtract two numbers and when do I have to count? Core was generated by `./a.out'. Therefore, pthread_join must be called once for each joinable thread created to avoid memory leaks. You should use the same loop as the first one in all three places. http://doinc.org/error-code/pthread-join-error-code-3.html

Reply With Quote July 27th, 2008,06:37 AM #5 exterminator View Profile View Forum Posts Visit Homepage Elite Member Power Poster Join Date Feb 2005 Location "The Capital" Posts 5,306 Re: segmentation Please have a look at > https://cygwin.com/contrib.html. or better how would I fix this? It doesn't mention signals and EINTR at all.

Pthread_join Error Codes

Can you try getting the value of the detached state from the thread attributes for which you call pthread_join() using pthread_attr_getdetachstate()? For details of in-depth Linux/UNIX system programming training courses that I teach, look here. You're not actually running concurrent threads Thread concurrency simply means your threads run simultaneously. Not the answer you're looking for?

RATIONALE The pthread_join() function is a convenience that has proven useful in multi-threaded applications. Although I think, that would be less probable than the guess that your joining is incorrectly being called. Can you see why? –Alex Feb 23 '13 at 5:46 1 @usr55410 The value returned by pthread_create is the actual error number, so you can use e.g. Pthread_create Error Code 22 Return Value On success, the return value of th is stored in the location pointed to by thread_return, and 0 is returned.

Ubuntu Ubuntu Insights Planet Ubuntu Activity Page Please read before SSO login Advanced Search Forum The Ubuntu Forum Community Ubuntu Specialised Support Development & Programming Programming Talk libpthread. Pthread Error Codes It might be > > that the problem occurs only when SA_RESTART isn't used. > > Lasse, I'm sorry, but I can't handle that quickly. Can you help me with my homework assignment?, Before you post!, Use code tags, How to post!, Codeguru technical FAQs, C++ FAQ Lite, Stroustrup: C++ Style and Technique FAQ, Guru of their explanation Next number in sequence, understand the 1st mistake to avoid the 2nd What does the word "most" mean?

I debugged it only a little but hopefully someone finds this > > useful: > > > > In the file thread.cc, function pthread::join, the call to cygwait may > > Pthread_create.c No Such File Or Directory If that thread has already terminated, then pthread_join() returns immediately. How should I prepare myself for a more supervisory role? POSIX is a registered Trademark of The IEEE. [ Main Index | XBD | XCU | XSH | XRAT ] CodeGuru Home VC++ / MFC / C++ .NET / C#

  • Would it be ok to eat rice using spoon in front of Westerners?
  • Charlie Burns has posted the reasons pthread_join might fail.
  • Disable compiler optimization for better GDB experience. –Nikolai N Fetissov Mar 1 '12 at 21:08 1 It's bad in general, but of course, might be ok in some cases.
  • The WAIT_SIGNALED is returned because we're in the main thread and SA_RESTART is not set, as you assumed above.

Pthread Error Codes

EXAMPLE top See pthread_create(3). http://pubs.opengroup.org/onlinepubs/009695399/functions/pthread_join.html I debugged it only a little but hopefully someone finds this > > > useful: > > > > > > In the file thread.cc, function pthread::join, the call to cygwait Pthread_join Error Codes You can use the returnval as it was errno so the rest of your answer looks correct. (-1) –Mihai Jul 16 at 11:34 add a comment| up vote 0 down vote Pthread_create Error 22 Where's the 0xBEEF?

Your returnVal usage is wrong The pthread_join api expects a void**, that is a pointer to a void*. http://doinc.org/error-code/pthread-join-error-code-22.html How do I translate "hate speech"? Edit 0: Another problem - you pass address of a local variable temp to the thread function: search_funct(struct conn_pair temp, enum conn_state markState) { ... The switch > > > statement handling the return value assumes that only WAIT_OBJECT_0 and > > > WAIT_CANCELED are possible. Pthread Error Code 22

It is a pointer of specific type and as such you should only pass a likewise typed address. Join them; it only takes a minute: Sign up Pthread_join crashing program up vote 1 down vote favorite I have looked all over for pthread_join examples, I am having troubles debugging How can I Improve gameplay for new players, as a new player? http://doinc.org/error-code/pthread-join-error-code-35.html EINVAL Another thread is already waiting on termination of th.

Reply With Quote Quick Navigation C++ (Non Visual C++ Issues) Top Site Areas Settings Private Messages Subscriptions Who's Online Search Forums Forums Home Forums Visual C++ & C++ Programming Visual C++ Pthread_join Return Value 3 The thread specified by thread must be joinable. As-written, it is undefined behavior.

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Since you're > looking into the code and apparently understanding it, maybe you'd > like to provide patches, too? Joining with a thread that has previously been joined results in undefined behavior. The default section of the switch statement > > > has a comment "should never happen" and it returns EINVAL. Gdb Pthread_join C No Such File Or Directory While such a technique would allow a thread to wait on more complex conditions (for example, waiting for multiple threads to terminate), waiting on individual thread termination is considered widely useful.

Not the answer you're looking for? Interviewee offered code samples from current employer -- should I accept? pthread_join() error ? check over here THX exterminator You're welcome!

ATTRIBUTES top For an explanation of the terms used in this section, see attributes(7). ┌───────────────┬───────────────┬─────────┐ │Interface │ Attribute │ Value │ ├───────────────┼───────────────┼─────────┤ │pthread_join() │ Thread safety │ Are there any historically significant examples? It adds a flag cw_sig_restart to cygwait, which also restarts in the main thread if SA_RESTART is not set, as it's supposed to be for pthread_join. EINVAL thread is not a joinable thread.

Here is a small program to test libpthread. ===== test_pth.c ============== #include #include int main() { int err=pthread_join(345,NULL); printf("error:%d\n",err); return 0; } ========================== On FreeBSD 8.2 is running ok int returnval; if((returnval = pthread_join(aThread[i], (void**)&returnVal)) != 0) { printf("error joining thread: %s\n", strerror(returnval)); //1st optiop perror("error joining thread:"); //2nd option printf("error joining thread: %m\n"); //3rd option } (1) strerror will At most one thread can wait for the termination of a given thread. Originally Posted by amatorc++ edit: INDEED!!

The terminating thread would set a flag to indicate termination and broadcast a condition that is part of that state; a joining thread would wait on that condition variable. EINVAL Another thread is already waiting to join with this thread. Searching further on this I found this(3): The wait in pthread_join is not broken by a signal. Why don't browser DNS caches mitigate DDOS attacks on DNS providers?