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| author | Denys Vlasenko <vda.linux@googlemail.com> | 2010-12-30 01:17:03 +0100 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2010-12-30 01:17:03 +0100 |
| commit | 2753aae0e8728f527bedf103b1207857b7c3e151 (patch) | |
| tree | 81a721b4e9aa1884e0f25db7e0310b7c6037bc62 /libbb/u_signal_names.c | |
| parent | 90615a0c5c326fa3cf78fc719f7b16207f47395a (diff) | |
| download | busybox-w32-2753aae0e8728f527bedf103b1207857b7c3e151.tar.gz busybox-w32-2753aae0e8728f527bedf103b1207857b7c3e151.tar.bz2 busybox-w32-2753aae0e8728f527bedf103b1207857b7c3e151.zip | |
libbb: optionally support RTMIN[+n] and RTMAX[-n] signal names
function old new delta
get_signum 140 336 +196
__libc_allocate_rtsig - 56 +56
__libc_current_sigrtmin - 6 +6
__libc_current_sigrtmax - 6 +6
current_rtmin - 4 +4
current_rtmax - 4 +4
bbconfig_config_bz2 4961 4962 +1
------------------------------------------------------------------------------
(add/remove: 6/0 grow/shrink: 2/0 up/down: 273/0) Total: 273 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'libbb/u_signal_names.c')
| -rw-r--r-- | libbb/u_signal_names.c | 42 |
1 files changed, 37 insertions, 5 deletions
diff --git a/libbb/u_signal_names.c b/libbb/u_signal_names.c index 9263859f5..53ccdd1a7 100644 --- a/libbb/u_signal_names.c +++ b/libbb/u_signal_names.c | |||
| @@ -7,6 +7,13 @@ | |||
| 7 | * Licensed under GPLv2 or later, see file LICENSE in this source tree. | 7 | * Licensed under GPLv2 or later, see file LICENSE in this source tree. |
| 8 | */ | 8 | */ |
| 9 | 9 | ||
| 10 | //config:config FEATURE_RTMINMAX | ||
| 11 | //config: bool "Support RTMIN[+n] and RTMAX[-n] signal names" | ||
| 12 | //config: default y | ||
| 13 | //config: help | ||
| 14 | //config: Support RTMIN[+n] and RTMAX[-n] signal names | ||
| 15 | //config: in kill, killall etc. This costs ~250 bytes. | ||
| 16 | |||
| 10 | #include "libbb.h" | 17 | #include "libbb.h" |
| 11 | 18 | ||
| 12 | /* Believe it or not, but some arches have more than 32 SIGs! | 19 | /* Believe it or not, but some arches have more than 32 SIGs! |
| @@ -134,20 +141,45 @@ int FAST_FUNC get_signum(const char *name) | |||
| 134 | if (strcasecmp(name, signals[i]) == 0) | 141 | if (strcasecmp(name, signals[i]) == 0) |
| 135 | return i; | 142 | return i; |
| 136 | 143 | ||
| 137 | #if ENABLE_DESKTOP && (defined(SIGIOT) || defined(SIGIO)) | 144 | #if ENABLE_DESKTOP |
| 145 | # if defined(SIGIOT) || defined(SIGIO) | ||
| 138 | /* SIGIO[T] are aliased to other names, | 146 | /* SIGIO[T] are aliased to other names, |
| 139 | * thus cannot be stored in the signals[] array. | 147 | * thus cannot be stored in the signals[] array. |
| 140 | * Need special code to recognize them */ | 148 | * Need special code to recognize them */ |
| 141 | if ((name[0] | 0x20) == 'i' && (name[1] | 0x20) == 'o') { | 149 | if ((name[0] | 0x20) == 'i' && (name[1] | 0x20) == 'o') { |
| 142 | #ifdef SIGIO | 150 | # ifdef SIGIO |
| 143 | if (!name[2]) | 151 | if (!name[2]) |
| 144 | return SIGIO; | 152 | return SIGIO; |
| 145 | #endif | 153 | # endif |
| 146 | #ifdef SIGIOT | 154 | # ifdef SIGIOT |
| 147 | if ((name[2] | 0x20) == 't' && !name[3]) | 155 | if ((name[2] | 0x20) == 't' && !name[3]) |
| 148 | return SIGIOT; | 156 | return SIGIOT; |
| 149 | #endif | 157 | # endif |
| 158 | } | ||
| 159 | # endif | ||
| 160 | #endif | ||
| 161 | |||
| 162 | #if ENABLE_FEATURE_RTMINMAX | ||
| 163 | # if defined(SIGRTMIN) && defined(SIGRTMAX) | ||
| 164 | if (strncasecmp(name, "RTMAX", 5) == 0) { | ||
| 165 | if (!name[5]) | ||
| 166 | return SIGRTMAX; | ||
| 167 | if (name[5] == '-') { | ||
| 168 | i = bb_strtou(name + 6, NULL, 10); | ||
| 169 | if (!errno && i <= SIGRTMAX - SIGRTMIN) | ||
| 170 | return SIGRTMAX - i; | ||
| 171 | } | ||
| 172 | } | ||
| 173 | if (strncasecmp(name, "RTMIN", 5) == 0) { | ||
| 174 | if (!name[5]) | ||
| 175 | return SIGRTMIN; | ||
| 176 | if (name[5] == '+') { | ||
| 177 | i = bb_strtou(name + 6, NULL, 10); | ||
| 178 | if (!errno && i <= SIGRTMAX - SIGRTMIN) | ||
| 179 | return SIGRTMIN + i; | ||
| 180 | } | ||
| 150 | } | 181 | } |
| 182 | # endif | ||
| 151 | #endif | 183 | #endif |
| 152 | 184 | ||
| 153 | return -1; | 185 | return -1; |