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membuf: Minor code-style improvements

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Show the start in end in the comment. Comment a missing variable in
membuf_readline() and fix its line length.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2025-03-18 16:20:48 +01:00 • committed by Tom Rini
parent 142a3cb63c
commit da8694a7d2
2 changed files with 6 additions and 3 deletions
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6
include/membuf.h
View file

@ -25,7 +25,7 @@
*
* .............xxxxxxxxxxxxxxxx.........................
* ^ ^
* tail head
* ^start tail head ^end
*
* xxxxxxxxxxxxx................xxxxxxxxxxxxxxxxxxxxxxxxx
* ^ ^
@ -194,11 +194,13 @@ int membuf_free(struct membuf *mb);
* @mb: membuff to adjust
* @str: Place to put the line
* @maxlen: Maximum line length (excluding terminator)
* @minch: Minimum ASCII character to permit as part of the line (e.g. ' ')
* @must_fit: If true then str is empty if line doesn't fit
* Return: number of bytes read (including terminator) if a line has been
* read, 0 if nothing was there or line didn't fit when must_fit is set
*/
int membuf_readline(struct membuf *mb, char *str, int maxlen, int minch, bool must_fit);
int membuf_readline(struct membuf *mb, char *str, int maxlen, int minch,
bool must_fit);
/**
* membuf_extend_by() - expand a membuff

3
lib/membuf.c
View file

@ -287,7 +287,8 @@ int membuf_free(struct membuf *mb)
(mb->end - mb->start) - 1 - membuf_avail(mb);
}
int membuf_readline(struct membuf *mb, char *str, int maxlen, int minch, bool must_fit)
int membuf_readline(struct membuf *mb, char *str, int maxlen, int minch,
bool must_fit)
{
int len; /* number of bytes read (!= string length) */
char *s, *end;