ch4-thread-pid

Chapter_4     condvar

Chapter_5

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thread-pid.c     ALP, p. 87-88

#include <stdio.h> // for fprintf(), stderr, NULL
#include <unistd.h> // for getpid()
#include <pthread.h> // for pthread_t, pthread_create()

void * thread_function (void * arg);

int main()
{
pthread_t thread;

fprintf (stderr, "main() thread pid is %d\n", (int) getpid());

pthread_create (&thread, NULL, &thread_function, NULL);

while(1); /* Spin forever. */

return 0;
}

void * thread_function (void * arg)
{
fprintf (stderr, "child thread pid is %d\n", (int) getpid());

while(1); /* Spin forever. */

return NULL;
}

/*
gcc thread-pid.c -o thread-pid -lpthread
./thread-pid
main() thread pid is 100092
child thread pid is 100092
^C // Ctrl^C
*/

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Chapter_4     condvar

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