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PTHREAD_CREATE(3) NAME top pthread_create - create a new thread SYNOPSIS top #include int pthread_create(pthread_t *thread, const pthread_attr_t *attr, void pthread example *(*start_routine) (void *), void *arg); Compile and link with -pthread. DESCRIPTION pthread attributes top The pthread_create() function starts a new thread in the calling process. The new thread starts execution pthread example c++ by invoking start_routine(); arg is passed as the sole argument of start_routine(). The new thread terminates in one of the following ways: * It calls pthread_exit(3), specifying an exit status value

Pthread_create Undefined Reference

that is available to another thread in the same process that calls pthread_join(3). * It returns from start_routine(). This is equivalent to calling pthread_exit(3) with the value supplied in the return statement. * It is canceled (see pthread_cancel(3)). * Any of the threads in the process calls exit(3), or the main thread performs a return from main(). This causes the termination of all threads pthread_create c in the process. The attr argument points to a pthread_attr_t structure whose contents are used at thread creation time to determine attributes for the new thread; this structure is initialized using pthread_attr_init(3) and related functions. If attr is NULL, then the thread is created with default attributes. Before returning, a successful call to pthread_create() stores the ID of the new thread in the buffer pointed to by thread; this identifier is used to refer to the thread in subsequent calls to other pthreads functions. The new thread inherits a copy of the creating thread's signal mask (pthread_sigmask(3)). The set of pending signals for the new thread is empty (sigpending(2)). The new thread does not inherit the creating thread's alternate signal stack (sigaltstack(2)). The new thread inherits the calling thread's floating-point environment (fenv(3)). The initial value of the new thread's CPU-time clock is 0 (see pthread_getcpuclockid(3)). Linux-specific details The new thread inherits copies of the calling thread's capability sets (see capabilities(7)) and CPU affinity mask (see sched_setaffinity(2)). RETURN VALUE top On success, pthread_create() returns 0; on error, it returns an error number, and the con

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a community of 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up undefined reference to pthread_create in Linux up vote 162 down vote favorite 60 I http://man7.org/linux/man-pages/man3/pthread_create.3.html picked up the following demo off the web from https://computing.llnl.gov/tutorials/pthreads/ #include #include #define NUM_THREADS 5 void *PrintHello(void *threadid) { long tid; tid = (long)threadid; printf("Hello World! It's me, thread #%ld!\n", tid); pthread_exit(NULL); } int main (int argc, char *argv[]) { pthread_t threads[NUM_THREADS]; int rc; long t; for(t=0; thttp://stackoverflow.com/questions/1662909/undefined-reference-to-pthread-create-in-linux pthread_create() is %d\n", rc); exit(-1); } } pthread_exit(NULL); } But when I compile it on my machine (running Ubuntu Linux 9.04) I get the following error: corey@ubuntu:~/demo$ gcc -o term term.c term.c: In function ‘main’: term.c:23: warning: incompatible implicit declaration of built-in function ‘exit’ /tmp/cc8BMzwx.o: In function `main': term.c:(.text+0x82): undefined reference to `pthread_create' collect2: ld returned 1 exit status This doesn't make any sense to me, because the header includes pthread.h, which should have the pthread_create function. Any ideas what's going wrong? c linux multithreading pthreads share|improve this question edited Jan 6 '15 at 17:44 Tshepang 4,7061059103 asked Nov 2 '09 at 18:40 Ralph 1,11441417 3 Additionally: depending on the platform, you may need (a) a different compiler for threads, (b) a different libc for threads (i.e. -lc_r), (c) -thread or -threads or other, instead of or in addition to -lpthread. –ephemient Nov 3 '09 at 1:42 Just a little above that example, you'll see a table of the correct compiler commands, whether it be GCC, IBM, etc. 'Employed Russian' is correct. –Jonathon Reinhart Jun 26 '11 at 6:47 6 Can you please unmark my answer, so that I can delete it (and mark the one that is actually correct, which is the hi

Sign in Pricing Blog Support Search GitHub This repository Watch 208 Star 2,184 Fork 369 krakjoe/pthreads Code Issues 17 Pull requests 1 Projects 0 Pulse https://github.com/krakjoe/pthreads/issues/75 Graphs New issue Error Display #75 Closed olekukonko opened this Issue Mar 19, 2013 · 14 comments Projects None yet Labels None yet Milestone No milestone Assignees No https://books.google.gr/books?id=rgrRr1i1MJgC&pg=PA24&lpg=PA24&dq=pthreads+error&source=bl&ots=xfmpT4geMv&sig=PkdTN3y7HzXby0Nshfe3AXKFWjk&hl=en&sa=X&ved=0ahUKEwjawZfOnOnPAhXC3CwKHQhHADUQ6AEIXTAJ one assigned 4 participants olekukonko commented Mar 19, 2013 If you run the code below on command line .. you get error_reporting(E_ALL); ini_set("display_errors", "On"); class ThreadClass extends Thread { public pthread example function run() { error_reporting(E_ALL); new NonExstingClass(); } } $g = new ThreadClass(); $g->start(); PHP Fatal error: Class 'NonExstingClass' not found which is valid but if you run it via PHP 5.4.11 & Apache .. You get empty output ..... no error is displayed Owner krakjoe commented Mar 19, 2013 The output stream of the thread in apache is different to that pthread example c++ in CLI, it is not directly handled by PHP, there is nothing we can do to affect it. krakjoe closed this Mar 19, 2013 olekukonko commented Mar 19, 2013 Is there any work around ? They can be somany things that can go wrong , Memory , Timeout etc that can generate Fatal error I tried setting Custom error handler using set_error_handler but it did not not work yet register_shutdown_function working perfectly error_reporting(E_ALL); ini_set("display_errors", "On"); function myErrorHandler($errno, $errstr, $errfile, $errline) { var_dump($errno, $errstr, $errfile, $errline); } function shutdown() { var_dump("Shutting Down"); } class ThreadClass extends Thread { public function run() { error_reporting(E_ALL); set_error_handler("myErrorHandler"); register_shutdown_function("shutdown"); notexistfunc(); } } $g = new ThreadClass(); $g->start(); Any suggestions would be appreciated Owner krakjoe commented Mar 20, 2013 There is no workaround to get you access to the standard output of apache, and you should not try to find one. Instead, adopt error logging to a file so you can see the errors from threads during execution. An error logging object should open the same file in write mode in every thread, stream as a static

εμάς.Μάθετε περισσότερα Το κατάλαβαΟ λογαριασμός μουΑναζήτησηΧάρτεςYouTubePlayΕιδήσειςGmailDriveΗμερολόγιοGoogle+ΜετάφρασηΦωτογραφίεςΠερισσότεραΈγγραφαBloggerΕπαφέςHangoutsΑκόμη περισσότερα από την GoogleΕίσοδοςΚρυφά πεδίαΒιβλίαbooks.google.gr - Computers are just as busy as the rest of us nowadays. They have lots of tasks to do at once, and need some cleverness to get them all done at the same time.That's why threads are seen more and more often as a new model for programming. Threads have been available for some time. The Mach operating system,...https://books.google.gr/books/about/PThreads_Programming.html?hl=el&id=rgrRr1i1MJgC&utm_source=gb-gplus-sharePThreads ProgrammingΗ βιβλιοθήκη μουΒοήθειαΣύνθετη Αναζήτηση ΒιβλίωνΑγορά eBook - 22,13 €Λήψη αυτού του βιβλίου σε έντυπη μορφήO'ReillyΕλευθερουδάκηςΠαπασωτηρίουΕύρεση σε κάποια βιβλιοθήκηΌλοι οι πωλητές»PThreads Programming: A POSIX Standard for Better MultiprocessingDick Buttlar, Jacqueline Farrell, Bradford Nichols"O'Reilly Media, Inc.", 1 Σεπ 1996 - 286 σελίδες 0 Κριτικέςhttps://books.google.gr/books/about/PThreads_Programming.html?hl=el&id=rgrRr1i1MJgCComputers are just as busy as the rest of us nowadays. They have lots of tasks to do at once, and need some cleverness to get them all done at the same time.That's why threads are seen more and more often as a new model for programming. Threads have been available for some time. The Mach operating system, the Distributed Computer Environment (DCE), and Windows NT all feature threads.One advantage of most UNIX implementations, as well as DCE, is that they conform to a recently ratified POSIX standard (originally 1003.4a, now 1003.1c), which allows your

 

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Pthread Error table id toc tbody tr td div id toctitle Contents div ul li a href Pthread Attributes a li li a href Pthread create Undefined Reference a li li a href Pthread join a li li a href Pthread create Function a li ul td tr tbody table p PTHREAD CREATE NAME top pthread create - create a new thread SYNOPSIS top include pthread h int pthread create pthread t relatedl thread const pthread attr t attr void start routine void void arg pthread example Compile and link with -pthread DESCRIPTION top The pthread create p h id