pintos-doxygen/html/recursor_8c_source.html

#include <stdio.h>

#include <stdlib.h>

#include <syscall.h>


int

main (int argc, char *argv[])

{

  char buffer[128];

  pid_t pid;

  int retval = 0;


  if (argc != 4)

    {

      printf ("usage: recursor <string> <depth> <waitp>\n");

      exit (1);

    }


  /* Print args. */

  printf ("%s %s %s %s\n", argv[0], argv[1], argv[2], argv[3]);


  /* Execute child and wait for it to finish if requested. */

  if (atoi (argv[2]) != 0)

    {

      snprintf (buffer, sizeof buffer,

                "recursor %s %d %s", argv[1], atoi (argv[2]) - 1, argv[3]);

      pid = exec (buffer);

      if (atoi (argv[3]))

        retval = wait (pid);

    }


  /* Done. */

  printf ("%s %s: dying, retval=%d\n", argv[1], argv[2], retval);

  exit (retval);

}

buffer
static struct intq buffer
Stores keys from the keyboard and serial port.
Definition: input.c:7

wait
static void wait(struct intq *q, struct thread **waiter)

snprintf
int snprintf(char *buffer, size_t buf_size, const char *format,...)
Like printf(), except that output is stored into BUFFER, which must have space for BUF_SIZE character...
Definition: stdio.c:62

printf
int printf(const char *format,...)
Writes formatted output to the console.
Definition: stdio.c:79

atoi
int atoi(const char *s)
Converts a string representation of a signed decimal integer in S into an ‘int’, which is returned.
Definition: stdlib.c:10

exit
void exit(int status)
Definition: syscall.c:72

exec
pid_t exec(const char *file)
Definition: syscall.c:79

pid_t
int pid_t
Process identifier.
Definition: syscall.h:8

main
int main(int argc, char *argv[])
Definition: recursor.c:6

stdlib.h