3 replies to this topic

[vibhu]

How do I fork more than one process in unix. There are lot of examples how to fork one child process from the main process. But there are no examples as to how to fork more than one process. Can you please just give me an example of forking two processes. Thank you.

[dargueta]

Use <pthread.h>.

I copied and pasted this from another forum.

#include <stdio.h>
#include <pthread.h> 
 
// The follwing is a GCCE toolchain workaround needed when compiling with GCCE
// and using main() entry point
#ifdef __GCCE__
#include <staticlibinit_gcce.h>
#endif
 
void *TestFunction(void*)
{
    printf("Test function....\n");
    return NULL;
}
 
int CreateThread()
{
   pthread_t thread_hdl;
   if(pthread_create(&thread_hdl,NULL,TestFunction, NULL) != 0)
   {
     printf("Thread creation failed \n");
     return -1;
   }
}
int main(void)
{
	CreateThread();
	printf("Hello Open C!\n");
	return 0;
}

[vibhu]

That did not help. There is a constraint that I should use fork(). any other answers.

[dargueta]

Have your child process fork then. Just pass it a counter indicating how many times it should fork.

PARENT (fork 3 times) ->child(2)->grandchild(1)->greatgrandchild(0)