Re: [PATCH] dprintf implementation

["Yoshinori K. Okuji" <okuji@enbug.org>]

On Thursday 24 February 2005 09:02, Vincent Pelletier wrote:
> Iirc there were differences of point of view on that matter.
> Okuji, what do you think about that idea ?

What I said was that you should use strings instead of bit fields.

# This enables the debug mode for fs and disk.
debug="fs disk"

...execute commands...

# This disable the debug mode.
debug=""


Here you don't have to use bit fields (such as DEBUG_MODE_FS_BIT) at 
all. When dprintf is called, dprintf simply check if a specified 
category is included in the variable "debug". Like this:

  enabled = 0;
  if (grub_strstr (debug, "all"))
    enabled = 1;
  else if (grub_strstr (debug, category))
    enabled = 1;

Actually, strstr is not appropriate, because it does not consider word 
boundaries.

Strings are much better because of the flexibility.

Okuji