rename() function

[Chris Johns]

On 19/05/11 5:38 AM, Robert S. Grimes wrote:
> Does the rename() function really work for the IMFS? I am using 4.9/4.10
> on sparc, and the following code crashes my app immediately on entry
> into the rename() function:
>
>     printf("About to call\n");
>
>     rename("hello.txt", "goodby.txt");
>
>     printf("rename done\n");
>
> The first printf() works, then the system crashes. And yes, the source
> file exists, and the destination does not.
>

I just tried the 4.10 branch (the to be released 4.10.1) on the SIS 
simulator. For 4.10 there has been IMFS eval code changes.

chris at takapu sis $ sparc-rtems4.10-run $(find 
sparc-rtems4.10/c/sis/testsuites/ -name fileio.exe)


*** FILE I/O SAMPLE AND TEST ***
  =========================
  RTEMS FILE I/O Test Menu
  =========================
    p -> part_table_initialize
    f -> mount all disks in fs_table
    l -> list  file
    r -> read  file
    w -> write file
    s -> start shell
    Enter your selection ==>s
Creating /etc/passwd and group with three useable accounts
root/pwd , test/pwd, rtems/NO PASSWORD
  =========================
  starting shell
  =========================

RTEMS SHELL (Ver.1.0-FRC):/dev/console. May 13 2011. 'help' to list 
commands.
[/] # ls
dev     etc     scripts
[/] # ls -las
total 0
0 drwxr-xr-x  1 root  root  560 Jan  1 00:00 dev
0 drwxr-xr-x  1 root  root  560 Jan  1 00:00 etc
0 drwxr-xr-x  1 root  root  840 Jan  1 00:00 scripts
[/] # ls -las scripts
total 0
0 -rwxrwxrwx  1 root  root   34 Jan  1 00:00 j1
0 -rw-r--r--  1 root  root  102 Jan  1 00:00 j2
0 -rwxrwxrwx  1 root  root   57 Jan  1 00:00 js
[/] # mv scripts/j2 chris
[/] # ls -las
total 0
0 -rw-r--r--  1 root  root  102 Jan  1 00:00 chris
0 drwxr-xr-x  1 root  root  560 Jan  1 00:00 dev
0 drwxr-xr-x  1 root  root  560 Jan  1 00:00 etc
0 drwxr-xr-x  1 root  root  560 Jan  1 00:00 scripts
[/] #

And the mv command implements the move I did as:

   if (!rename(from, to)) {
     if (vflg)
       printf("%s -> %s\n", from, to);
     return (0);
   }

Chris