src/bg.c File Reference

#include <eggdrop/eggdrop.h>
#include <unistd.h>
#include <sys/wait.h>
#include <signal.h>
#include "main.h"
#include "bg.h"

Go to the source code of this file.

Functions
void	bg_begin_split ()
void	bg_finish_split ()
Variables
static const char	rcsid [] = "$Id: bg.c,v 1.22 2004-10-17 05:14:07 stdarg Exp $"
static int	pipefd [2]

---

Function Documentation

void bg_begin_split

(

)

Definition at line 56 of file bg.c.

References fatal(), and pipefd.

Referenced by core_init().

{
  int parent_pid = -1, child_pid = -1;
  int result;
  char temp = 0;

  parent_pid = getpid();

  pipe(pipefd);

  child_pid = fork();
  if (child_pid == -1) fatal("CANNOT FORK PROCESS.");

  /* Are we the child? */
  if (child_pid == 0) {
    /* Yes. Continue as normal. */
    return;
  }
  /* We are the parent. Just hang around until the child is done. When
   * the child wants us to exit, it will send us the signal and trigger
   * wait_for_child. */
  close(pipefd[1]);
  result = read(pipefd[0], &temp, 1);

  if (result <= 0) {
    printf("Eggdrop exited abnormally!\n");
    exit(1);
  }
  else {
    printf("Eggdrop launched successfully into the background, pid = %d.\n", child_pid);
    exit(0);
  }
}

void bg_finish_split

(

)

Definition at line 90 of file bg.c.

References pipefd.

Referenced by core_init().

{
  char temp = 0;
  write(pipefd[1], &temp, 1);
  close(pipefd[1]);
  close(pipefd[0]);

#if HAVE_SETPGID && !defined(CYGWIN_HACKS)
  setpgid(0, 0);
#endif
  freopen("/dev/null", "r", stdin);
  freopen("/dev/null", "w", stdout);
  freopen("/dev/null", "w", stderr);

#ifdef CYGWIN_HACKS
  FreeConsole();
#endif
}

---

Variable Documentation

int pipefd[2] [static]

Definition at line 54 of file bg.c.

Referenced by bg_begin_split(), and bg_finish_split().

const char rcsid[] = "$Id: bg.c,v 1.22 2004-10-17 05:14:07 stdarg Exp $" [static]

Definition at line 23 of file bg.c.