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

#include <stdlib.h> /* getenv, exit */
#include <unistd.h>


#include <errno.h>

#include "common.h"
#include "message.h"

extern char merge_task[];
extern pid_t Mergepid;

extern STATUS_TABLE *status_table;

void start_merge(int i)
{

      int rcode;
      pid_t pid;
      char p1[10];

//    start the merge task

                pid = fork();
                if (pid == -1)  {
                   sprintf(message_buffer, "fork failed %d - This must be fixed - exiting.", errno);
                   report_message(MSG_FAILURE);
                   exit(1);
                }
                if (pid == 0) {

//    this is the child process - use exec to overlay the task code

                   sprintf(p1, "%d", i);

                   rcode = execl(merge_task, merge_task, "-i", p1, NULL);

                   sprintf(message_buffer, "Merge task returned %d - %s.", errno, strerror(errno));
                   report_message(MSG_FAILURE);
                   return;
                }
                
                Mergepid = pid;
                status_table->merge_pid = pid;

                sprintf(message_buffer, "Merge task has pid %d", pid);
                report_message(MSG_INFORMATION);

                return;
    
}