Moments | Nature of work in C++? Was Sigmund Freud "deathly afraid" of the number 62? Are they joinable? Were they created in detached state? http://caribtechsxm.com/error-code/pthread-join-error-code-35.php
Failure to join with a thread that is joinable (i.e., one that is not detached), produces a "zombie thread". The pthread_join() function may fail if: [EDEADLK] A deadlock was detected or the value of thread specifies the calling thread. [EINVAL] The value specified by thread does not refer to a You don't need to explicitly pass errno. (3) There is a glibc extension to printf that provide a %m conversion specifier that acts like strerror but with a little less muss Counterintuitive polarizing filters Word for making your life circumstances seem much worse than they are Antsy permutations What is summer in Spanish? "Estío" vs "verano" Font identification dificulties Cant find the find more info
because join returns a non-zero number if there is a problem which evaluates to true. Otherwise, an error number will be returned to indicate the error. The WAIT_SIGNALED is returned because we're in the main thread and SA_RESTART is not set, as you assumed above. This file is part of Cygwin. @@ -2399,7 +2399,8 @@ pthread::join (pthread_t *thread, void * (*thread)->attr.joinable = PTHREAD_CREATE_DETACHED; (*thread)->mutex.unlock (); - switch (cygwait ((*thread)->win32_obj_id, cw_infinite, cw_sig | cw_cancel)) + switch (cygwait
User contributions on this site are licensed under the Creative Commons Attribution Share Alike 4.0 International License. The pthread_join() function provides a simple mechanism allowing an application to wait for a thread to terminate. asked 3 years ago viewed 3536 times active 3 years ago Blog Stack Overflow Podcast #92 - The Guerilla Guide to Interviewing Related 55pthread function from a class3Pthread lost signals / Pthread_create Error Code 22 Since you're > looking into the code and apparently understanding it, maybe you'd > like to provide patches, too?
Multiple password fields for one login Was the Oceanic flight 815 pilot the only one attacked by the monster? result: program ended successfully after a long waiting period where nothing happened and the last threads didn't give any output to the console o.O I don't understand your logic. I changed &attr to NULL and now things seem to run just fine. http://stackoverflow.com/questions/19286698/how-do-i-get-the-error-code-from-pthread-join Can anyone help?
My code works correctly when I don't run a pthread_join and have it commented out, but when I use it, I get a backtrace. Pthread_create.c No Such File Or Directory However, you're not using it anyway, so I would suggest for now you simply pass NULL. Charlie Burns has posted the reasons pthread_join might fail. Index: cygwait.h =================================================================== RCS file: /cvs/src/src/winsup/cygwin/cygwait.h,v retrieving revision 1.10 diff -u -p -r1.10 cygwait.h --- cygwait.h 9 Apr 2013 01:01:19 -0000 1.10 +++ cygwait.h 23 Feb 2015 13:54:48 -0000 @@ -1,7
Join them; it only takes a minute: Sign up Difficulty Creating Pthreads (Error 22) up vote 0 down vote favorite Learning about pthreads, but I'm having trouble getting them created. http://pubs.opengroup.org/onlinepubs/009695399/functions/pthread_join.html Once you get the description you can easily look into the man pages of the call that failed and they will provide greater hints as to why the call failed. Pthread_join Error Codes Then you have two loops where you loop from one to argc - 2, and use indexes from one to "size of array". Pthread_create Error 22 Unlike void*, a void** is not equally universal.
tp[i].conn = (struct conn_pair *)&temp; That is BadTM. http://caribtechsxm.com/error-code/pthread-join-error-codes.php Show how you create thread with some dummy thread fun and then with your loops to join them all. The default section of the switch statement > > has a comment "should never happen" and it returns EINVAL. To start viewing messages, select the forum that you want to visit from the selection below. Pthread Error Code 22
So your first paragraph is wrong. For instance, after pthread_join() returns, any application-provided stack storage could be reclaimed. EINVAL thread is not a joinable thread. his comment is here Browse other questions tagged c pthreads pthread-join or ask your own question.
Calling pthread_join on a thread th on which another thread is already waiting for termination returns an error. Pthread_join Return Value 3 If abstime is NULL the function will wait forever and it's behaviour will therefore be identical to pthread_join. 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.
If the thread calling pthread_join() is canceled, then the target thread will remain joinable (i.e., it will not be detached). How do I find out if there is an Esperanto club in my city? Anyway, it's a good habbit to avoid passing stack addresses to thread routines, since created thread might outlive current stack frame and you end up with a pointer to memory used Gdb Pthread_join C No Such File Or Directory See Also pthread_exit(3) , pthread_detach(3) , pthread_create(3) , pthread_attr_setdetachstate(3) , pthread_cleanup_push(3) , pthread_key_create(3) .
THX exterminator You're welcome! EDIT: Here is how I changed the code per the suggestion from Joachim Pileborg. What does the word "most" mean? http://caribtechsxm.com/error-code/pthread-join-error-code-3.php Return Value On success, the return value of th is stored in the location pointed to by thread_return, and 0 is returned.
Index: thread.cc =================================================================== RCS file: /cvs/src/src/winsup/cygwin/thread.cc,v retrieving revision 1.296 diff -u -p -r1.296 thread.cc --- thread.cc 28 Nov 2014 20:46:13 -0000 1.296 +++ thread.cc 23 Feb 2015 12:58:59 -0000 @@ -2399,6 ESRCH No thread with the ID thread could be found. Thus, only the default cancelability state need be considered. How much are the taxes for the postdocs?
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. If you don't need to set any attribute then you can pass a NULL pointer. –Some programmer dude Feb 23 '13 at 6:30 Looks like that was it. Fire up GDB and find out. –Nikolai N Fetissov Mar 1 '12 at 20:37 info threads will show you list of threads. Cancel self. */ + cw_sig = 0x0004, /* Handle signals. */ + cw_sig_eintr = 0x0008, /* Caller handles signals. */ + cw_sig_cont = 0x0010, /* Caller handles SIGCONT. */ + cw_sig_restart
THX exterminator Last edited by amatorc++; July 27th, 2008 at 07:23 AM. The if statment shouldn't have the ! How do I translate "hate speech"? The following sections are informative.
Results 1 to 7 of 7 Thread: segmentation fault on pthread_join Tweet Thread Tools Show Printable Version Email this Page… Subscribe to this Thread… Display Linear Mode Switch to Hybrid Mode RETURN VALUE If successful, the pthread_join() function shall return zero; otherwise, an error number shall be returned to indicate the error. Patches <= 10 lines don't even > need a copyright assignment. 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
Something else might be wrong in that case. Browse other questions tagged c pthreads or ask your own question. For example joinErr = pthread_join(aThread[i], &returnVal); printf("join returned %d\n", joinErr); always is 0 –Celeritas Oct 10 '13 at 4:27 @Celeritas always zero means it succeeded; not failed. –WhozCraig Oct pthread_timedjoin_np is identical to pthread_join except that it will return the error ETIMEDOUT if the target thread th has not exited before abstime passes.