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1 | ?RCS: $Id: sig_name.U,v 3.0.1.5 1997/02/28 16:21:25 ram Exp $ |
2 | ?RCS: | |
3 | ?RCS: Copyright (c) 1991-1993, Raphael Manfredi | |
4 | ?RCS: | |
5 | ?RCS: You may redistribute only under the terms of the Artistic Licence, | |
6 | ?RCS: as specified in the README file that comes with the distribution. | |
7 | ?RCS: You may reuse parts of this distribution only within the terms of | |
8 | ?RCS: that same Artistic Licence; a copy of which may be found at the root | |
9 | ?RCS: of the source tree for dist 3.0. | |
10 | ?RCS: | |
11 | ?RCS: $Log: sig_name.U,v $ | |
12 | ?RCS: Revision 3.0.1.5 1997/02/28 16:21:25 ram | |
13 | ?RCS: patch61: brand new algorithm for sig_name and (new!) sig_num | |
14 | ?RCS: | |
15 | ?RCS: Revision 3.0.1.4 1995/07/25 14:14:54 ram | |
16 | ?RCS: patch56: added <asm/signal.h> lookup for linux | |
17 | ?RCS: | |
18 | ?RCS: Revision 3.0.1.3 1995/05/12 12:24:11 ram | |
19 | ?RCS: patch54: now looks for <linux/signal.h> too (ADO) | |
20 | ?RCS: | |
21 | ?RCS: Revision 3.0.1.2 1994/06/20 07:06:57 ram | |
22 | ?RCS: patch30: final echo was missing to close awk-printed string | |
23 | ?RCS: | |
24 | ?RCS: Revision 3.0.1.1 1994/05/06 15:17:55 ram | |
25 | ?RCS: patch23: signal list now formatted to avoid scroll-ups (ADO) | |
26 | ?RCS: | |
27 | ?RCS: Revision 3.0 1993/08/18 12:09:47 ram | |
28 | ?RCS: Baseline for dist 3.0 netwide release. | |
29 | ?RCS: | |
7a392aa9 | 30 | ?MAKE:sig_name sig_name_init sig_num sig_num_init sig_count sig_size: \ |
959f3c4c JH |
31 | awk Signal Oldconfig rm |
32 | ?MAKE: -pick add $@ %< | |
33 | ?S:sig_name: | |
34 | ?S: This variable holds the signal names, space separated. The leading | |
4fdd99d1 JH |
35 | ?S: SIG in signal name is removed. A ZERO is prepended to the list. |
36 | ?S: This is currently not used, sig_name_init is used instead. | |
959f3c4c JH |
37 | ?S:. |
38 | ?S:sig_name_init: | |
39 | ?S: This variable holds the signal names, enclosed in double quotes and | |
40 | ?S: separated by commas, suitable for use in the SIG_NAME definition | |
41 | ?S: below. A "ZERO" is prepended to the list, and the list is | |
42 | ?S: terminated with a plain 0. The leading SIG in signal names | |
43 | ?S: is removed. See sig_num. | |
44 | ?S:. | |
45 | ?S:sig_num: | |
46 | ?S: This variable holds the signal numbers, space separated. A ZERO is | |
4fdd99d1 JH |
47 | ?S: prepended to the list (corresponding to the fake SIGZERO). |
48 | ?S: Those numbers correspond to the value of the signal listed | |
49 | ?S: in the same place within the sig_name list. | |
50 | ?S: This is currently not used, sig_num_init is used instead. | |
959f3c4c JH |
51 | ?S:. |
52 | ?S:sig_num_init: | |
53 | ?S: This variable holds the signal numbers, enclosed in double quotes and | |
54 | ?S: separated by commas, suitable for use in the SIG_NUM definition | |
55 | ?S: below. A "ZERO" is prepended to the list, and the list is | |
56 | ?S: terminated with a plain 0. | |
57 | ?S:. | |
58 | ?S:sig_count (sig_name.U): | |
59 | ?S: This variable holds a number larger than the largest valid | |
60 | ?S: signal number. This is usually the same as the NSIG macro. | |
61 | ?S:. | |
7a392aa9 JH |
62 | ?S:sig_size: |
63 | ?S: This variable contains the number of elements of the sig_name | |
93ef354a | 64 | ?S: and sig_num arrays. |
7a392aa9 | 65 | ?S:. |
959f3c4c JH |
66 | ?C:SIG_NAME: |
67 | ?C: This symbol contains a list of signal names in order of | |
68 | ?C: signal number. This is intended | |
69 | ?C: to be used as a static array initialization, like this: | |
70 | ?C: char *sig_name[] = { SIG_NAME }; | |
71 | ?C: The signals in the list are separated with commas, and each signal | |
72 | ?C: is surrounded by double quotes. There is no leading SIG in the signal | |
73 | ?C: name, i.e. SIGQUIT is known as "QUIT". | |
74 | ?C: Gaps in the signal numbers (up to NSIG) are filled in with NUMnn, | |
75 | ?C: etc., where nn is the actual signal number (e.g. NUM37). | |
76 | ?C: The signal number for sig_name[i] is stored in sig_num[i]. | |
77 | ?C: The last element is 0 to terminate the list with a NULL. This | |
4fdd99d1 JH |
78 | ?C: corresponds to the 0 at the end of the sig_name_init list. |
79 | ?C: Note that this variable is initialized from the sig_name_init, | |
80 | ?C: not from sig_name (which is unused). | |
959f3c4c JH |
81 | ?C:. |
82 | ?C:SIG_NUM: | |
83 | ?C: This symbol contains a list of signal numbers, in the same order as the | |
84 | ?C: SIG_NAME list. It is suitable for static array initialization, as in: | |
85 | ?C: int sig_num[] = { SIG_NUM }; | |
86 | ?C: The signals in the list are separated with commas, and the indices | |
87 | ?C: within that list and the SIG_NAME list match, so it's easy to compute | |
88 | ?C: the signal name from a number or vice versa at the price of a small | |
89 | ?C: dynamic linear lookup. | |
90 | ?C: Duplicates are allowed, but are moved to the end of the list. | |
91 | ?C: The signal number corresponding to sig_name[i] is sig_number[i]. | |
92 | ?C: if (i < NSIG) then sig_number[i] == i. | |
93 | ?C: The last element is 0, corresponding to the 0 at the end of | |
4fdd99d1 JH |
94 | ?C: the sig_name_init list. |
95 | ?C: Note that this variable is initialized from the sig_num_init, | |
96 | ?C: not from sig_num (which is unused). | |
959f3c4c JH |
97 | ?C:. |
98 | ?C:SIG_COUNT: | |
99 | ?C: This variable contains a number larger than the largest | |
100 | ?C: signal number. This is usually the same as the NSIG macro. | |
101 | ?C:. | |
7a392aa9 | 102 | ?C:SIG_SIZE: |
93ef354a JH |
103 | ?C: This variable contains the number of elements of the SIG_NAME |
104 | ?C: and SIG_NUM arrays, excluding the final NULL entry. | |
7a392aa9 | 105 | ?C:. |
959f3c4c JH |
106 | ?H:#define SIG_NAME $sig_name_init /**/ |
107 | ?H:#define SIG_NUM $sig_num_init /**/ | |
108 | ?H:#define SIG_COUNT $sig_count /**/ | |
7a392aa9 | 109 | ?H:#define SIG_SIZE $sig_size /**/ |
959f3c4c JH |
110 | ?H:. |
111 | ?T:i doinit | |
112 | ?F:!signal_cmd | |
113 | ?X: signal.cmd creates a file signal.lst which has two columns: | |
114 | ?X: NAME number, e.g. | |
115 | ?X: HUP 1 | |
116 | ?X: The list is sorted on signal number, with duplicates moved to | |
117 | ?X: the end.. | |
118 | : generate list of signal names | |
119 | echo " " | |
120 | case "$sig_name_init" in | |
121 | '') doinit=yes ;; | |
122 | *) case "$sig_num_init" in | |
123 | ''|*,*) doinit=yes ;; | |
124 | esac ;; | |
125 | esac | |
126 | case "$doinit" in | |
127 | yes) | |
128 | echo "Generating a list of signal names and numbers..." >&4 | |
129 | . ./signal_cmd | |
130 | sig_count=`$awk '/^NSIG/ { printf "%d", $2 }' signal.lst` | |
131 | sig_name=`$awk 'BEGIN { printf "ZERO " } | |
132 | !/^NSIG/ { printf "%s ", $1 }' signal.lst` | |
133 | sig_num=`$awk 'BEGIN { printf "0 " } | |
134 | !/^NSIG/ { printf "%d ", $2 }' signal.lst` | |
135 | sig_name_init=`$awk 'BEGIN { printf "\"ZERO\", " } | |
136 | !/^NSIG/ { printf "\"%s\", ", $1 } | |
137 | END { printf "0\n" }' signal.lst` | |
138 | sig_num_init=`$awk 'BEGIN { printf "0, " } | |
139 | !/^NSIG/ { printf "%d, ", $2} | |
140 | END { printf "0\n"}' signal.lst` | |
141 | ;; | |
142 | esac | |
143 | echo "The following $sig_count signals are available:" | |
144 | echo " " | |
145 | echo $sig_name | $awk \ | |
146 | 'BEGIN { linelen = 0 } | |
147 | { | |
148 | for (i = 1; i <= NF; i++) { | |
149 | name = "SIG" $i " " | |
150 | linelen = linelen + length(name) | |
151 | if (linelen > 70) { | |
152 | printf "\n" | |
153 | linelen = length(name) | |
154 | } | |
155 | printf "%s", name | |
156 | } | |
157 | printf "\n" | |
158 | }' | |
7a392aa9 | 159 | sig_size=`echo $sig_name | awk '{print NF}'` |
959f3c4c JH |
160 | $rm -f signal signal.c signal.awk signal.lst signal_cmd |
161 |