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| author | Shawn Landden | 2022-08-27 19:56:21 +0200 |
|---|---|---|
| committer | Denys Vlasenko | 2022-08-27 19:56:21 +0200 |
| commit | 58598eb7093561d914a6254697e137b815f1fdfc (patch) | |
| tree | a1e15b99eb2deaebefa01a504498494a95c80f32 | |
| parent | d432049f288c9acdc4a7caa729c68ceba3c5dca1 (diff) | |
| download | busybox-58598eb7093561d914a6254697e137b815f1fdfc.zip busybox-58598eb7093561d914a6254697e137b815f1fdfc.tar.gz | |
ash: optional sleep builtin
function old new delta
sleepcmd - 10 +10
builtintab 352 360 +8
.rodata 105264 105271 +7
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 2/0 up/down: 25/0) Total: 25 bytes
Signed-off-by: Shawn Landden <shawnlandden@tutanota.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| -rw-r--r-- | coreutils/sleep.c | 1 | ||||
| -rw-r--r-- | include/libbb.h | 1 | ||||
| -rw-r--r-- | libbb/duration.c | 6 | ||||
| -rw-r--r-- | shell/ash.c | 11 |
4 files changed, 19 insertions, 0 deletions
diff --git a/coreutils/sleep.c b/coreutils/sleep.c index 2658e84..4428412 100644 --- a/coreutils/sleep.c +++ b/coreutils/sleep.c @@ -37,6 +37,7 @@ //applet:IF_SLEEP(APPLET(sleep, BB_DIR_BIN, BB_SUID_DROP)) //kbuild:lib-$(CONFIG_SLEEP) += sleep.o +//kbuild:lib-$(CONFIG_ASH_SLEEP) += sleep.o /* BB_AUDIT SUSv3 compliant */ /* BB_AUDIT GNU issues -- fancy version matches except args must be ints. */ diff --git a/include/libbb.h b/include/libbb.h index abbc9ac..19ed9ec 100644 --- a/include/libbb.h +++ b/include/libbb.h @@ -1510,6 +1510,7 @@ int ash_main(int argc, char** argv) IF_SHELL_ASH(MAIN_EXTERNALLY_VISIBLE); int hush_main(int argc, char** argv) IF_SHELL_HUSH(MAIN_EXTERNALLY_VISIBLE); /* If shell needs them, they exist even if not enabled as applets */ int echo_main(int argc, char** argv) IF_ECHO(MAIN_EXTERNALLY_VISIBLE); +int sleep_main(int argc, char **argv) IF_SLEEP(MAIN_EXTERNALLY_VISIBLE); int printf_main(int argc, char **argv) IF_PRINTF(MAIN_EXTERNALLY_VISIBLE); int test_main(int argc, char **argv) #if ENABLE_TEST || ENABLE_TEST1 || ENABLE_TEST2 diff --git a/libbb/duration.c b/libbb/duration.c index a6a29dd..793d02f 100644 --- a/libbb/duration.c +++ b/libbb/duration.c @@ -76,6 +76,12 @@ void FAST_FUNC sleep_for_duration(duration_t duration) ts.tv_sec = duration; ts.tv_nsec = (duration - ts.tv_sec) * 1000000000; } + /* NB: if ENABLE_ASH_SLEEP, we end up here if "sleep N" + * is run in ash. ^C will still work, because ash's signal handler + * does not return (it longjumps), the below loop + * will not continue looping. + * (This wouldn't work in hush) + */ do { errno = 0; nanosleep(&ts, &ts); diff --git a/shell/ash.c b/shell/ash.c index 55c1034..326f8b2 100644 --- a/shell/ash.c +++ b/shell/ash.c @@ -134,6 +134,11 @@ //config: default y //config: depends on SHELL_ASH //config: +//config:config ASH_SLEEP +//config: bool "sleep builtin" +//config: default y +//config: depends on SHELL_ASH +//config: //config:config ASH_HELP //config: bool "help builtin" //config: default y @@ -10155,6 +10160,9 @@ static int FAST_FUNC printfcmd(int argc, char **argv) { return printf_main(argc, #if ENABLE_ASH_TEST || BASH_TEST2 static int FAST_FUNC testcmd(int argc, char **argv) { return test_main(argc, argv); } #endif +#if ENABLE_ASH_SLEEP +static int FAST_FUNC sleepcmd(int argc, char **argv) { return sleep_main(argc, argv); } +#endif /* Keep these in proper order since it is searched via bsearch() */ static const struct builtincmd builtintab[] = { @@ -10217,6 +10225,9 @@ static const struct builtincmd builtintab[] = { { BUILTIN_SPEC_REG "return" , returncmd }, { BUILTIN_SPEC_REG "set" , setcmd }, { BUILTIN_SPEC_REG "shift" , shiftcmd }, +#if ENABLE_ASH_SLEEP + { BUILTIN_REGULAR "sleep" , sleepcmd }, +#endif #if BASH_SOURCE { BUILTIN_SPEC_REG "source" , dotcmd }, #endif |