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device_mapper: slight improvement of tok_match

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Reduce amount of unnecessary instructions for some code paths.
This commit is contained in:
Zdenek Kabelac 2024-10-09 17:16:44 +02:00
parent 92158a24a5
commit c29e3410c9
2 changed files with 14 additions and 6 deletions
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10
device_mapper/libdm-config.c
View File

@ -85,14 +85,18 @@ static char *_dup_token(struct dm_pool *mem, const char *b, const char *e);
} \
} while(0)
/* match token */
static int _tok_match(const char *str, const char *b, const char *e)
{
while (*str && (b != e)) {
if (*str++ != *b++)
while (b < e) {
if (!*str ||
(*str != *b))
return 0;
++str;
++b;
}
return !(*str || (b != e));
return !*str; /* token is matching for \0 end */
}
struct dm_config_tree *dm_config_create(void)

10
libdm/libdm-config.c
View File

@ -85,14 +85,18 @@ static char *_dup_token(struct dm_pool *mem, const char *b, const char *e);
} \
} while(0)
/* match token */
static int _tok_match(const char *str, const char *b, const char *e)
{
while (*str && (b != e)) {
if (*str++ != *b++)
while (b < e) {
if (!*str ||
(*str != *b))
return 0;
++str;
++b;
}
return !(*str || (b != e));
return !*str; /* token is matching for \0 end */
}
struct dm_config_tree *dm_config_create(void)