This was written in eclipse and verified on the beagle bone black running
angstrom v2013.09.04
/*
* thread-test.cc
*
* Created on: Dec 29, 2013
* Author: daniel
*/
// thread example
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <pthread.h>
void* foo(void* ptr)
{
for (int index=0; index < 30; index++)
{
printf("Current Count: %d\n", index);
}
usleep(1000);
return 0;
}
void* bar(void* ptr)
{
int x = *(int*)ptr;
for (int index=x; index < 60; index++)
{
printf("Current Count: %d\n", index);
}
usleep(1000);
return 0;
}
int main()
{
int iret1 = 0;
int iret2 = 0;
int idata = 1;
pthread_t first; // spawn new thread that calls foo()
pthread_t second; // spawn new thread that calls bar(0)
printf("main, foo and bar now execute concurrently...\n");
iret1 = pthread_create( &first, NULL, foo, NULL);
iret2 = pthread_create( &second, NULL, bar, (void*)&idata);
// synchronize threads:
pthread_join(first, NULL); // pauses until first finishes
pthread_join(second, NULL); // pauses until second finishes
printf("Thread 1 returns: %d\n",iret1);
printf("Thread 2 returns: %d\n",iret2);
printf("foo and bar completed.\n");
return 0;
}
Have Fun!
On Sat, Dec 28, 2013 at 9:56 PM, <[email protected]> wrote:
> Hello everyone,
>
> I have been looking around and trying to find answers for my problem but I
> have yet to run into a solution.
>
> So, I currently have the latest release of Angstrom for Beaglebone and I
> have the latest g++ for it (4.5.4 I believe but I would prefer to have
> 4.7.2). The kernel is 3.2.42 I believe.
>
> I have coded the threading example here:
> http://www.cplusplus.com/reference/thread/thread/ and compiled with
> combinations of -pthread, -lpthread, -std=c++0x, and std=c++11 but I always
> get an error "pure virtual method called; terminate called without an
> active exception; Aborted".
>
> I have looked around and it seems that can be fixed by g++ v4.7+ so I
> decided to cross compile on my Ubuntu with g++ v4.7.2. I configured all the
> necessary things required to cross compile on ARM and deploy on Beaglebone
> but I either get the error of the one I mentioned or this "terminate called
> after throwing an instance of 'std::system_error'; what():; Aborted".
>
> I have also looked around for that previous error but the suggested
> solutions for that error did not help me at all.
>
> Has anyone gotten C++ and threading to work with Angstrom? If so, or if
> you know a solution to my issue, could you point me to the right direction?
>
>
> Thank you so much.
>
> --
> For more options, visit http://beagleboard.org/discuss
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>
--
Dan Metcalf -- KB3UUN
--
For more options, visit http://beagleboard.org/discuss
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