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procps: code shrink

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function                                             old     new   delta
skip_whitespace_if_prefixed_with                       -      17     +17
procps_read_smaps                                    911     854     -57
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/1 up/down: 17/-57)            Total: -40 bytes

Signed-off-by: Martin Lewis <martin.lewis.x84@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Martin Lewis 2020-06-11 15:45:57 -05:00 committed by Denys Vlasenko
parent 1f86ecb729
commit ac79db6a3b
1 changed files with 10 additions and 2 deletions
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12
libbb/procps.c
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@ -177,6 +177,15 @@ static char *skip_fields(char *str, int count)
} }
#endif #endif
static char* skip_whitespace_if_prefixed_with(char *buf, const char *prefix)
{
char *tp = is_prefixed_with(buf, prefix);
if (tp) {
tp = skip_whitespace(tp);
}
return tp;
}
#if ENABLE_FEATURE_TOPMEM || ENABLE_PMAP #if ENABLE_FEATURE_TOPMEM || ENABLE_PMAP
int FAST_FUNC procps_read_smaps(pid_t pid, struct smaprec *total, int FAST_FUNC procps_read_smaps(pid_t pid, struct smaprec *total,
void (*cb)(struct smaprec *, void *), void *data) void (*cb)(struct smaprec *, void *), void *data)
@ -207,8 +216,7 @@ int FAST_FUNC procps_read_smaps(pid_t pid, struct smaprec *total,
char *tp, *p; char *tp, *p;
#define SCAN(S, X) \ #define SCAN(S, X) \
if ((tp = is_prefixed_with(buf, S)) != NULL) { \ if ((tp = skip_whitespace_if_prefixed_with(buf, S)) != NULL) { \
tp = skip_whitespace(tp); \
total->X += currec.X = fast_strtoul_10(&tp); \ total->X += currec.X = fast_strtoul_10(&tp); \
continue; \ continue; \
} }