Programming

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include <sys/types.h>
#include <sys/wait.h>

#define nProcess 2

struct timeval tp1;
struct timeval tp2;

long proc_id_A[5];
char filename[100];

static unsigned int trx_nr=0;
int *prt=&trx_nr;

struct record_log
{
   int account_id;
};
typedef struct record_log record_log;
static record_log records[] = {85013,86709,86712,84966,84955};

static record_log *trx;

void get_transaction()
{
	trx=&records[*prt];
	(*prt)++;
}

void start_processing();

main()
{
 	int i,i_pid,i_no_of_process=0,i_wait_count=0;
    int *i_stat_loc = NULL ;
    void *pZero = 0;

    if(gettimeofday(&tp1,pZero) == -1)
	{
		perror("First: ");
		exit(0);
	}

   for(i=0;i<nProcess ;i++)
   {

      if((i_pid=fork())<0)
      {
        printf("\nFailed to execute instance %d\n",i_no_of_process);
        return(1);
      }
      else if(i_pid==0)
      {
        start_processing();
      }
      else
      {
       proc_id_A[i]=i_pid;
       i_no_of_process++;
      }
    }

   if(i == nProcess )
   {
     printf("\n\nNo of process initiated = %d",i_no_of_process);

     printf("\nSequence   Process Id      Wait Process Id    Status\n\n");

     for(i_wait_count=0;i_wait_count<i_no_of_process;i_wait_count++)
     {
       printf("%-8d   %ld   %21d   %9d\n",i_wait_count+1,proc_id_A[i_wait_count],
                                          waitpid(proc_id_A[i_wait_count],i_stat_loc ,WCONTINUED),i_stat_loc);
       if((i_stat_loc)!=0)
       {
         printf("Process [Id=%ld] has failed\n",proc_id_A[i_wait_count]);
         return(1);
       }
     }
   }

   if(gettimeofday(&tp2,pZero) == -1)
	{
		perror("Second: ");
		exit(0);
	}

     printf(" \n\nTHE TOTAL = %f",(float)(tp2.tv_sec - tp1.tv_sec) + ((float)(tp2.tv_usec - tp1.tv_usec)/1000000.0));
	printf("\n\nEnd Of Main Function\n");
}

void start_processing()
{
    int num_ret,total_records = 0,tot_recs_fetched=0,records_fetched;
    int not_complete = 1;

    while (*prt < (sizeof(records)/sizeof(record_log)))
	{
		get_transaction();
        C_INIT(filename);
        sprintf(filename,"%s_%d.out","child",trx->account_id);
        printf("\nfile name is : %s : %d %d",filename, getpid(),*prt);

        /* after creating file for each account, code will write account data in file */
    }
  printf("\n\nOut of  chield %d",getpid());
 exit(0);
}