Pintos: pintos/src/tests/filesys/extended/mk-tree.c Source File

00001 /* Library function for creating a tree of directories. */
00002 
00003 #include <stdio.h>
00004 #include <syscall.h>
00005 #include "tests/filesys/extended/mk-tree.h"
00006 #include "tests/lib.h"
00007 
00008 static void do_mkdir (const char *format, ...) PRINTF_FORMAT (1, 2);
00009 static void do_touch (const char *format, ...) PRINTF_FORMAT (1, 2);
00010 
00011 void
00012 make_tree (int at, int bt, int ct, int dt) 
00013 {
00014   char try[128];
00015   int a, b, c, d;
00016   int fd;
00017 
00018   msg ("creating /0/0/0/0 through /%d/%d/%d/%d...",
00019        at - 1, bt - 1, ct - 1, dt - 1);
00020   quiet = true;
00021   for (a = 0; a < at; a++) 
00022     {
00023       do_mkdir ("/%d", a);
00024       for (b = 0; b < bt; b++) 
00025         {
00026           do_mkdir ("/%d/%d", a, b);
00027           for (c = 0; c < ct; c++) 
00028             {
00029               do_mkdir ("/%d/%d/%d", a, b, c);
00030               for (d = 0; d < dt; d++)
00031                 do_touch ("/%d/%d/%d/%d", a, b, c, d);
00032             }
00033         }
00034     }
00035   quiet = false;
00036 
00037   snprintf (try, sizeof try, "/%d/%d/%d/%d", 0, bt - 1, 0, dt - 1);
00038   CHECK ((fd = open (try)) > 1, "open \"%s\"", try);
00039   msg ("close \"%s\"", try);
00040   close (fd);
00041 }
00042 
00043 static void
00044 do_mkdir (const char *format, ...) 
00045 {
00046   char dir[128];
00047   va_list args;
00048 
00049   va_start (args, format);
00050   vsnprintf (dir, sizeof dir, format, args);
00051   va_end (args);
00052 
00053   CHECK (mkdir (dir), "mkdir \"%s\"", dir);
00054 }
00055 
00056 static void
00057 do_touch (const char *format, ...)
00058 {
00059   char file[128];
00060   va_list args;
00061 
00062   va_start (args, format);
00063   vsnprintf (file, sizeof file, format, args);
00064   va_end (args);
00065 
00066   CHECK (create (file, 0), "create \"%s\"", file);
00067 }