The functions get_rate() and get_rate64() are useful for parsing rate-like values. The DCB tool will find these useful in the maxrate subtool. Move them over to lib so that they can be easily reused.
Signed-off-by: Petr Machata <m...@pmachata.org> --- include/utils.h | 2 ++ lib/utils.c | 79 +++++++++++++++++++++++++++++++++++++++++++++++++ tc/tc_util.c | 79 ------------------------------------------------- tc/tc_util.h | 2 -- 4 files changed, 81 insertions(+), 81 deletions(-) diff --git a/include/utils.h b/include/utils.h index 01454f71cb1a..e2073844f2ef 100644 --- a/include/utils.h +++ b/include/utils.h @@ -162,6 +162,8 @@ int get_be64(__be64 *val, const char *arg, int base); int get_be32(__be32 *val, const char *arg, int base); int get_be16(__be16 *val, const char *arg, int base); int get_addr64(__u64 *ap, const char *cp); +int get_rate(unsigned int *rate, const char *str); +int get_rate64(__u64 *rate, const char *str); int hex2mem(const char *buf, uint8_t *mem, int count); char *hexstring_n2a(const __u8 *str, int len, char *buf, int blen); diff --git a/lib/utils.c b/lib/utils.c index a0ba5181160e..1237ae40246c 100644 --- a/lib/utils.c +++ b/lib/utils.c @@ -513,6 +513,85 @@ int get_addr64(__u64 *ap, const char *cp) return 1; } +/* See http://physics.nist.gov/cuu/Units/binary.html */ +static const struct rate_suffix { + const char *name; + double scale; +} suffixes[] = { + { "bit", 1. }, + { "Kibit", 1024. }, + { "kbit", 1000. }, + { "mibit", 1024.*1024. }, + { "mbit", 1000000. }, + { "gibit", 1024.*1024.*1024. }, + { "gbit", 1000000000. }, + { "tibit", 1024.*1024.*1024.*1024. }, + { "tbit", 1000000000000. }, + { "Bps", 8. }, + { "KiBps", 8.*1024. }, + { "KBps", 8000. }, + { "MiBps", 8.*1024*1024. }, + { "MBps", 8000000. }, + { "GiBps", 8.*1024.*1024.*1024. }, + { "GBps", 8000000000. }, + { "TiBps", 8.*1024.*1024.*1024.*1024. }, + { "TBps", 8000000000000. }, + { NULL } +}; + +int get_rate(unsigned int *rate, const char *str) +{ + char *p; + double bps = strtod(str, &p); + const struct rate_suffix *s; + + if (p == str) + return -1; + + for (s = suffixes; s->name; ++s) { + if (strcasecmp(s->name, p) == 0) { + bps *= s->scale; + p += strlen(p); + break; + } + } + + if (*p) + return -1; /* unknown suffix */ + + bps /= 8; /* -> bytes per second */ + *rate = bps; + /* detect if an overflow happened */ + if (*rate != floor(bps)) + return -1; + return 0; +} + +int get_rate64(__u64 *rate, const char *str) +{ + char *p; + double bps = strtod(str, &p); + const struct rate_suffix *s; + + if (p == str) + return -1; + + for (s = suffixes; s->name; ++s) { + if (strcasecmp(s->name, p) == 0) { + bps *= s->scale; + p += strlen(p); + break; + } + } + + if (*p) + return -1; /* unknown suffix */ + + bps /= 8; /* -> bytes per second */ + *rate = bps; + return 0; +} + static void set_address_type(inet_prefix *addr) { switch (addr->family) { diff --git a/tc/tc_util.c b/tc/tc_util.c index ff979c617b9b..3a133ad84ff9 100644 --- a/tc/tc_util.c +++ b/tc/tc_util.c @@ -164,32 +164,6 @@ char *sprint_tc_classid(__u32 h, char *buf) return buf; } -/* See http://physics.nist.gov/cuu/Units/binary.html */ -static const struct rate_suffix { - const char *name; - double scale; -} suffixes[] = { - { "bit", 1. }, - { "Kibit", 1024. }, - { "kbit", 1000. }, - { "mibit", 1024.*1024. }, - { "mbit", 1000000. }, - { "gibit", 1024.*1024.*1024. }, - { "gbit", 1000000000. }, - { "tibit", 1024.*1024.*1024.*1024. }, - { "tbit", 1000000000000. }, - { "Bps", 8. }, - { "KiBps", 8.*1024. }, - { "KBps", 8000. }, - { "MiBps", 8.*1024*1024. }, - { "MBps", 8000000. }, - { "GiBps", 8.*1024.*1024.*1024. }, - { "GBps", 8000000000. }, - { "TiBps", 8.*1024.*1024.*1024.*1024. }, - { "TBps", 8000000000000. }, - { NULL } -}; - /* Parse a percent e.g: '30%' * return: 0 = ok, -1 = error, 1 = out of range */ @@ -273,59 +247,6 @@ int get_percent_rate64(__u64 *rate, const char *str, const char *dev) return get_rate64(rate, r_str); } -int get_rate(unsigned int *rate, const char *str) -{ - char *p; - double bps = strtod(str, &p); - const struct rate_suffix *s; - - if (p == str) - return -1; - - for (s = suffixes; s->name; ++s) { - if (strcasecmp(s->name, p) == 0) { - bps *= s->scale; - p += strlen(p); - break; - } - } - - if (*p) - return -1; /* unknown suffix */ - - bps /= 8; /* -> bytes per second */ - *rate = bps; - /* detect if an overflow happened */ - if (*rate != floor(bps)) - return -1; - return 0; -} - -int get_rate64(__u64 *rate, const char *str) -{ - char *p; - double bps = strtod(str, &p); - const struct rate_suffix *s; - - if (p == str) - return -1; - - for (s = suffixes; s->name; ++s) { - if (strcasecmp(s->name, p) == 0) { - bps *= s->scale; - p += strlen(p); - break; - } - } - - if (*p) - return -1; /* unknown suffix */ - - bps /= 8; /* -> bytes per second */ - *rate = bps; - return 0; -} - void tc_print_rate(enum output_type t, const char *key, const char *fmt, unsigned long long rate) { diff --git a/tc/tc_util.h b/tc/tc_util.h index d3b38c69155d..675fb34269f6 100644 --- a/tc/tc_util.h +++ b/tc/tc_util.h @@ -76,9 +76,7 @@ struct qdisc_util *get_qdisc_kind(const char *str); struct filter_util *get_filter_kind(const char *str); int get_qdisc_handle(__u32 *h, const char *str); -int get_rate(unsigned int *rate, const char *str); int get_percent_rate(unsigned int *rate, const char *str, const char *dev); -int get_rate64(__u64 *rate, const char *str); int get_percent_rate64(__u64 *rate, const char *str, const char *dev); int get_size(unsigned int *size, const char *str); int get_size_and_cell(unsigned int *size, int *cell_log, char *str); -- 2.25.1