FC5: getpid in threads
Brian D. McGrew
brian at visionpro.com
Tue Nov 21 18:08:58 UTC 2006
Hello,
In the FC3 day the following program, linked to /lib/libthread.so, when
ran would return me three unique pid's, one for each thread.
In FC5, this does not seems to work. /lib/libpthread.so is gone and I'm
forced to use /lib/tls/libpthread.so and this code does not work; I get
the same pid back for every thread, the pid of the main program.
I have several thousand lines of code which depend on a thread being
able to get it's own unique pid. How do I fix or work around this???
#include <iostream>
#include <stdio.h>
#include <stdlib.h>
#include <pthread.h>
#include <unistd.h>
#include <sys/types.h>
void *
print_msg(void *ptr)
{
char *message;
message = (char *)ptr;
std::cout << "PID of "
<< message
<< " "
<< getpid()
<< std::endl;
}
int
main(int argc, char *argv[])
{
std::cout << "Main PID: " << getpid() << std::endl;
pthread_t thread1;
pthread_t thread2;
char *message1 = "Thread 1";
char *message2 = "Thread 2";
int iret1;
int iret2;
iret1 = pthread_create(&thread1, NULL, print_msg, (void*)message1);
iret2 = pthread_create(&thread2, NULL, print_msg, (void*)message2);
pthread_join(thread1, NULL);
pthread_join(thread2, NULL);
std::cout << "Thread 1 Returns: " << iret1 << std::endl;
std::cout << "Thread 2 Returns: " << iret2 << std::endl;
return(0);
}
:b!
Brian D. McGrew { brian at visionpro.com || brian at doubledimension.com }
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