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| author | Denys Vlasenko <vda.linux@googlemail.com> | 2016-04-21 16:26:30 +0200 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2016-04-21 17:39:11 +0200 |
| commit | e6a2f4cc5a47d3022bdf5ca2cacbaa5a8c5baf7a (patch) | |
| tree | 0962142ac9830312cd3df52994db41e8ac47c73c /util-linux/script.c | |
| parent | 5598bdf0d3d46a865a4d23785e2d09e6db9be420 (diff) | |
| download | busybox-e6a2f4cc5a47d3022bdf5ca2cacbaa5a8c5baf7a.tar.gz | |
libbb: make bb_common_bufsiz1 1 kbyte, add capability to use bss tail for it
The config item is FEATURE_USE_BSS_TAIL. When it is off (default):
function old new delta
read_config 210 228 +18
doCommands 2279 2294 +15
ipneigh_list_or_flush 763 772 +9
ipaddr_list_or_flush 1256 1261 +5
display_process_list 1301 1306 +5
conspy_main 1378 1383 +5
do_lzo_compress 352 355 +3
do_lzo_decompress 565 567 +2
push 46 44 -2
inetd_main 2136 2134 -2
uevent_main 421 418 -3
addLines 97 92 -5
bb_common_bufsiz1 8193 1024 -7169
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 8/5 up/down: 62/-7181) Total: -7119 bytes
text data bss dec hex filename
829850 4086 9080 843016 cdd08 busybox_old
829901 4086 1904 835891 cc133 busybox_unstripped
FEATURE_USE_BSS_TAIL=y:
read_config 210 228 +18
doCommands 2279 2294 +15
ipneigh_list_or_flush 763 772 +9
ipaddr_list_or_flush 1256 1261 +5
display_process_list 1301 1306 +5
conspy_main 1378 1383 +5
do_lzo_compress 352 355 +3
do_lzo_decompress 565 567 +2
inetd_main 2136 2134 -2
bb_common_bufsiz1 8193 - -8193
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 8/1 up/down: 62/-8195) Total: -8133 bytes
text data bss dec hex filename
829850 4086 9080 843016 cdd08 busybox_old
829911 4086 880 834877 cbd3d busybox_unstripped
FIXME: setup_common_bufsiz() calls are missing.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'util-linux/script.c')
| -rw-r--r-- | util-linux/script.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/util-linux/script.c b/util-linux/script.c index abcd73bff..6195161bc 100644 --- a/util-linux/script.c +++ b/util-linux/script.c @@ -23,6 +23,7 @@ //usage: ) #include "libbb.h" +#include "common_bufsiz.h" int script_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; int script_main(int argc UNUSED_PARAM, char **argv) @@ -108,7 +109,8 @@ int script_main(int argc UNUSED_PARAM, char **argv) if (child_pid) { /* parent */ -#define buf bb_common_bufsiz1 +#define buf bb_common_bufsiz1 +#define sizeof_buf COMMON_BUFSIZE struct pollfd pfd[2]; int outfd, count, loop; double oldtime = ENABLE_SCRIPTREPLAY ? time(NULL) : 0; @@ -134,7 +136,7 @@ int script_main(int argc UNUSED_PARAM, char **argv) } if (pfd[0].revents) { errno = 0; - count = safe_read(pty, buf, sizeof(buf)); + count = safe_read(pty, buf, sizeof_buf); if (count <= 0 && errno != EAGAIN) { /* err/eof from pty: exit */ goto restore; @@ -157,7 +159,7 @@ int script_main(int argc UNUSED_PARAM, char **argv) } } if (pfd[1].revents) { - count = safe_read(STDIN_FILENO, buf, sizeof(buf)); + count = safe_read(STDIN_FILENO, buf, sizeof_buf); if (count <= 0) { /* err/eof from stdin: don't read stdin anymore */ pfd[1].revents = 0; @@ -176,7 +178,7 @@ int script_main(int argc UNUSED_PARAM, char **argv) * (util-linux's script doesn't do this. buggy :) */ loop = 999; /* pty is in O_NONBLOCK mode, we exit as soon as buffer is empty */ - while (--loop && (count = safe_read(pty, buf, sizeof(buf))) > 0) { + while (--loop && (count = safe_read(pty, buf, sizeof_buf)) > 0) { full_write(STDOUT_FILENO, buf, count); full_write(outfd, buf, count); } |