c - How can I make a "binary process tree"? -


i have number of process create. every son has create 2 sons. used recursive solution, works number of process created aren't want.

this tried:

void generate_kid(int g, int res){   pid_t kid1, kid2;   int status1, status2;   if( res > 0 ){     if( kid1 = fork() ){       if( res > 0){         if( kid2 = fork() ){         }         else {           printf("i %d, father %d\n",getpid(),getppid());           generate_kid(g,res/2-1);         }       }     }     else {       printf("i %d, father %d\n",getpid(),getppid());       generate_kid(g,res/2-1);     }   }   waitpid(kid1,&status1,0);   waitpid(kid2,&status2,0); }

try this:

void generate_kid(int res){   pid_t kid1, kid2;   int status1, status2;    if( res > 0 ){     if ((kid1 = fork())  == 0) {       // child       printf("i %d, father %d\n",getpid(),getppid());       // generate half remaining rounded odd processes       generate_kid((res-1)/2);     }     else if (kid1 > 0) {       // parent - create second child       if( res > 1){         if ((kid2 = fork()) == 0) {           // child 2           printf("i %d, father %d\n",getpid(),getppid());           // generate half remaining processes           generate_kid((res-2)/2);         }         else if (kid2 > 0){           // parent 2           waitpid(kid2,&status2,0);         }       }       waitpid(kid1,&status1,0);     }   } }

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