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Full Discussion: pthread problem
Operating Systems Linux Ubuntu pthread problem Post 302423866 by gaurav1086 on Sunday 23rd of May 2010 02:00:13 AM
Old 05-23-2010
Quote:
Originally Posted by elad2109
Hi all,

I wrote some code in c, using pthread (I configured the linker and compiler in eclipse IDE first).

Code:
#include <pthread.h>
#include "starter.h"
#include "UI.h"

Page* MM;
Page* Disk;
PCB* all_pcb_array;

void* display_prompt(void *id){

    printf("Hello111\n");

    return NULL;
}


int main(int argc, char** argv) {
    printf("Hello\n");
    pthread_t *thread = (pthread_t*) malloc (sizeof(pthread_t));
    pthread_create(thread, NULL, display_prompt, NULL);
    printf("Hello\n");
    return 1;
}

that works fine. However, when I move display_prompt to UI.h
no "Hello111 " output is printed.

anyone know how to solve that?
Elad
Hello,
you mean when you place the declaration of "display_prompt" to UI.h?
Declarations go in header(preprocessor #includes) and definitions go in the main source files by convention.

Regards,
gaurav.
 

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LEARN ABOUT DEBIAN

pthread_equal

PTHREAD_EQUAL(3)					     Linux Programmer's Manual						  PTHREAD_EQUAL(3)

NAME

       pthread_equal - compare thread IDs

SYNOPSIS

       #include <pthread.h>

       int pthread_equal(pthread_t t1, pthread_t t2);

       Compile and link with -pthread.

DESCRIPTION

       The pthread_equal() function compares two thread identifiers.

RETURN VALUE

       If the two thread IDs are equal, pthread_equal() returns a nonzero value; otherwise, it returns 0.

ERRORS

       This function always succeeds.

CONFORMING TO

       POSIX.1-2001.

NOTES

       The  pthread_equal()  function  is  necessary  because thread IDs should be considered opaque: there is no portable way for applications to
       directly compare two pthread_t values.

SEE ALSO

       pthread_create(3), pthread_self(3), pthreads(7)

COLOPHON

       This page is part of release 3.44 of the Linux man-pages project.  A description of the project, and information about reporting bugs,  can
       be found at http://www.kernel.org/doc/man-pages/.

Linux								    2009-03-30							  PTHREAD_EQUAL(3)
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