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/** Library function for creating a tree of directories. */


#include <stdio.h>

#include <syscall.h>

#include "tests/filesys/extended/mk-tree.h"

#include "tests/lib.h"


static void do_mkdir (const char *format, ...) PRINTF_FORMAT (1, 2);

static void do_touch (const char *format, ...) PRINTF_FORMAT (1, 2);


void

make_tree (int at, int bt, int ct, int dt)

{

  char try[128];

  int a, b, c, d;

  int fd;


  msg ("creating /0/0/0/0 through /%d/%d/%d/%d...",

       at - 1, bt - 1, ct - 1, dt - 1);

  quiet = true;

  for (a = 0; a < at; a++)

    {

      do_mkdir ("/%d", a);

      for (b = 0; b < bt; b++)

        {

          do_mkdir ("/%d/%d", a, b);

          for (c = 0; c < ct; c++)

            {

              do_mkdir ("/%d/%d/%d", a, b, c);

              for (d = 0; d < dt; d++)

                do_touch ("/%d/%d/%d/%d", a, b, c, d);

            }

        }

    }

  quiet = false;


  snprintf (try, sizeof try, "/%d/%d/%d/%d", 0, bt - 1, 0, dt - 1);

  CHECK ((fd = open (try)) > 1, "open \"%s\"", try);

  msg ("close \"%s\"", try);

  close (fd);

}


static void

do_mkdir (const char *format, ...)

{

  char dir[128];

  va_list args;


  va_start (args, format);

  vsnprintf (dir, sizeof dir, format, args);

  va_end (args);


  CHECK (mkdir (dir), "mkdir \"%s\"", dir);

}


static void

do_touch (const char *format, ...)

{

  char file[128];

  va_list args;


  va_start (args, format);

  vsnprintf (file, sizeof file, format, args);

  va_end (args);


  CHECK (create (file, 0), "create \"%s\"", file);

}

PRINTF_FORMAT
#define PRINTF_FORMAT(FMT, FIRST)
Definition: debug.h:10

vsnprintf
int vsnprintf(char *buffer, size_t buf_size, const char *format, va_list args)
Like vprintf(), except that output is stored into BUFFER, which must have space for BUF_SIZE characte...
Definition: stdio.c:26

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

create
bool create(const char *file, unsigned initial_size)
Definition: syscall.c:91

close
void close(int fd)
Definition: syscall.c:139

open
int open(const char *file)
Definition: syscall.c:103

mkdir
bool mkdir(const char *dir)
Definition: syscall.c:163

msg
void msg(const char *format,...)
Definition: lib.c:28

quiet
bool quiet
Definition: lib.c:9

lib.h

CHECK
#define CHECK(SUCCESS,...)
Takes an expression to test for SUCCESS and a message, which may include printf-style arguments.
Definition: lib.h:29

do_mkdir
static void do_mkdir(const char *format,...) PRINTF_FORMAT(1
Library function for creating a tree of directories.
Definition: mk-tree.c:44

make_tree
static void static void void make_tree(int at, int bt, int ct, int dt)
tests/filesys/extended/mk-tree.h
Definition: mk-tree.c:12

do_touch
static void static void do_touch(const char *format,...) PRINTF_FORMAT(1
Definition: mk-tree.c:57

mk-tree.h

va_end
#define va_end(LIST)
Definition: stdarg.h:10

va_start
#define va_start(LIST, ARG)
Definition: stdarg.h:9

va_list
__builtin_va_list va_list
GCC has <stdarg.h> functionality as built-ins, so all we need is to use it.
Definition: stdarg.h:7

dir
A directory.
Definition: directory.c:11

file
An open file.
Definition: file.c:8