diff options
| author | Denys Vlasenko <vda.linux@googlemail.com> | 2017-08-10 16:34:03 +0200 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2017-08-10 16:34:03 +0200 |
| commit | 11f2e99c13b42675bb65cf2cfd3e3a98f95f2cee (patch) | |
| tree | 3fc17fbedb484e69a6079da9550c2803bc1c31eb /shell/hush.c | |
| parent | c52dc0e83699cd8378740ef8f32a063a9c24fa51 (diff) | |
hush: optional times builtin
function old new delta
builtin_times - 108 +108
bltins1 360 372 +12
static.times_tbl - 9 +9
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 1/0 up/down: 129/0) Total: 129 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'shell/hush.c')
| -rw-r--r-- | shell/hush.c | 50 |
1 files changed, 48 insertions, 2 deletions
diff --git a/shell/hush.c b/shell/hush.c index af3b95b86..b53d1dcfb 100644 --- a/shell/hush.c +++ b/shell/hush.c @@ -48,7 +48,7 @@ * tilde expansion * aliases * builtins mandated by standards we don't support: - * [un]alias, command, fc, getopts, times: + * [un]alias, command, fc, getopts: * command -v CMD: print "/path/to/CMD" * prints "CMD" for builtins * prints "alias ALIAS='EXPANSION'" for aliases @@ -59,7 +59,6 @@ * -p: use default $PATH * command BLTIN: disables special-ness (e.g. errors do not abort) * getopts: getopt() for shells - * times: print getrusage(SELF/CHILDREN).ru_utime/ru_stime * fc -l[nr] [BEG] [END]: list range of commands in history * fc [-e EDITOR] [BEG] [END]: edit/rerun range of commands * fc -s [PAT=REP] [CMD]: rerun CMD, replacing PAT with REP @@ -265,6 +264,11 @@ //config: default y //config: depends on HUSH || SH_IS_HUSH || BASH_IS_HUSH //config: +//config:config HUSH_TIMES +//config: bool "times builtin" +//config: default y +//config: depends on HUSH || SH_IS_HUSH || BASH_IS_HUSH +//config: //config:config HUSH_READ //config: bool "read builtin" //config: default y @@ -325,6 +329,7 @@ #if ENABLE_HUSH_CASE # include <fnmatch.h> #endif +#include <sys/times.h> #include <sys/utsname.h> /* for setting $HOSTNAME */ #include "busybox.h" /* for APPLET_IS_NOFORK/NOEXEC */ @@ -1011,6 +1016,9 @@ static int builtin_trap(char **argv) FAST_FUNC; #if ENABLE_HUSH_TYPE static int builtin_type(char **argv) FAST_FUNC; #endif +#if ENABLE_HUSH_TIMES +static int builtin_times(char **argv) FAST_FUNC; +#endif static int builtin_true(char **argv) FAST_FUNC; #if ENABLE_HUSH_UMASK static int builtin_umask(char **argv) FAST_FUNC; @@ -1105,6 +1113,9 @@ static const struct built_in_command bltins1[] = { #if BASH_SOURCE BLTIN("source" , builtin_source , NULL), #endif +#if ENABLE_HUSH_TIMES + BLTIN("times" , builtin_times , NULL), +#endif #if ENABLE_HUSH_TRAP BLTIN("trap" , builtin_trap , "Trap signals"), #endif @@ -10407,6 +10418,41 @@ static int FAST_FUNC builtin_return(char **argv) } #endif +#if ENABLE_HUSH_TIMES +static int FAST_FUNC builtin_times(char **argv UNUSED_PARAM) +{ + static const uint8_t times_tbl[] ALIGN1 = { + ' ', offsetof(struct tms, tms_utime), + '\n', offsetof(struct tms, tms_stime), + ' ', offsetof(struct tms, tms_cutime), + '\n', offsetof(struct tms, tms_cstime), + 0 + }; + const uint8_t *p; + unsigned clk_tck; + struct tms buf; + + clk_tck = bb_clk_tck(); + + times(&buf); + p = times_tbl; + do { + unsigned sec, frac; + unsigned long t; + t = *(clock_t *)(((char *) &buf) + p[1]); + sec = t / clk_tck; + frac = t % clk_tck; + printf("%um%u.%03us%c", + sec / 60, sec % 60, + (frac * 1000) / clk_tck, + p[0]); + p += 2; + } while (*p); + + return EXIT_SUCCESS; +} +#endif + #if ENABLE_HUSH_MEMLEAK static int FAST_FUNC builtin_memleak(char **argv UNUSED_PARAM) { |