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1 | /* -*-c-*- |
2 | * | |
3 | * Main entry point for test-vector processing | |
4 | * | |
5 | * (c) 2023 Straylight/Edgeware | |
6 | */ | |
7 | ||
8 | /*----- Licensing notice --------------------------------------------------* | |
9 | * | |
10 | * This file is part of the mLib utilities library. | |
11 | * | |
12 | * mLib is free software: you can redistribute it and/or modify it under | |
13 | * the terms of the GNU Library General Public License as published by | |
14 | * the Free Software Foundation; either version 2 of the License, or (at | |
15 | * your option) any later version. | |
16 | * | |
17 | * mLib is distributed in the hope that it will be useful, but WITHOUT | |
18 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
19 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public | |
20 | * License for more details. | |
21 | * | |
22 | * You should have received a copy of the GNU Library General Public | |
23 | * License along with mLib. If not, write to the Free Software | |
24 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, | |
25 | * USA. | |
26 | */ | |
27 | ||
28 | /*----- Header files ------------------------------------------------------*/ | |
29 | ||
30 | #include "config.h" | |
31 | ||
32 | #include <ctype.h> | |
33 | #include <errno.h> | |
34 | #include <stdio.h> | |
35 | #include <stdlib.h> | |
36 | #include <string.h> | |
37 | ||
38 | #include <unistd.h> | |
39 | ||
40 | #include "bench.h" | |
41 | #include "dstr.h" | |
42 | #include "macros.h" | |
43 | #include "mdwopt.h" | |
44 | #include "quis.h" | |
45 | #include "report.h" | |
46 | #include "tvec.h" | |
47 | ||
48 | /*----- Main code ---------------------------------------------------------*/ | |
49 | ||
50 | static const struct outform { | |
51 | const char *name; | |
52 | struct tvec_output *(*makefn)(FILE *fp); | |
53 | } outtab[] = { | |
54 | { "human", tvec_humanoutput }, | |
55 | { "tap", tvec_tapoutput }, | |
56 | { 0, 0 } | |
57 | }; | |
58 | ||
59 | static struct bench_state benchstate; | |
60 | ||
61 | const struct tvec_info tvec_adhocinfo = | |
62 | { 0, 1, 1, sizeof(struct tvec_reg) }; | |
63 | ||
64 | static const struct outform *find_outform(const char *p) | |
65 | { | |
66 | const struct outform *best = 0, *of; | |
67 | size_t n = strlen(p); | |
68 | ||
69 | for (of = outtab; of->name; of++) | |
70 | if (!STRNCMP(p, ==, of->name, n)) | |
71 | ; | |
72 | else if (!of->name[n]) | |
73 | return (of); | |
74 | else if (best) | |
75 | die(2, "ambiguous output format name (`%s' or `%s'?)", | |
76 | best->name, of->name); | |
77 | else | |
78 | best = of; | |
79 | if (best) return (best); | |
80 | else die(2, "unknown output format `%s'", optarg); | |
81 | } | |
82 | ||
83 | static void version(FILE *fp) | |
84 | { pquis(fp, "$, mLib test-vector framework version " VERSION "\n"); } | |
85 | ||
86 | static void usage(FILE *fp) | |
87 | { | |
88 | pquis(fp, "\ | |
89 | usage: $ [-f FORMAT] [-o OUTPUT] [-t SECS] [TEST-FILE ...]\n\ | |
90 | "); | |
91 | } | |
92 | ||
93 | static void help(FILE *fp) | |
94 | { | |
95 | version(fp); fputc('\n', fp); | |
96 | usage(fp); fputs("\ | |
97 | Options:\n\ | |
98 | -h, --help show this help text.\n\ | |
99 | -v, --version show version number.\n\ | |
100 | -u, --usage show usage synopsis.\n\ | |
101 | \n\ | |
102 | -f, --format=FORMAT produce output in FORMAT.\n\ | |
103 | -o, --output=OUTPUT write output to OUTPUT file.\n\ | |
104 | -t, --target=SECS aim to run benchmarks for SECS.\n\ | |
105 | ", fp); | |
106 | } | |
107 | ||
108 | void tvec_parseargs(int argc, char *argv[], struct tvec_state *tv_out, | |
109 | int *argpos_out, const struct tvec_info *info) | |
110 | { | |
111 | FILE *ofp = 0; | |
112 | const struct outform *of = 0; | |
113 | struct tvec_output *o; | |
114 | struct bench_timer *tm; | |
115 | const char *p; char *q; | |
116 | int opt; | |
117 | double t; | |
118 | unsigned f = 0; | |
119 | #define f_bogus 1u | |
120 | ||
121 | static const struct option options[] = { | |
122 | { "help", 0, 0, 'h' }, | |
123 | { "version", 0, 0, 'v' }, | |
124 | { "usage", 0, 0, 'u' }, | |
125 | ||
126 | { "format", OPTF_ARGREQ, 0, 'f' }, | |
127 | { "output", OPTF_ARGREQ, 0, 'o' }, | |
128 | { "target", OPTF_ARGREQ, 0, 't' }, | |
129 | { 0, 0, 0, 0 } | |
130 | }; | |
131 | ||
132 | tvec_benchstate = &benchstate; | |
133 | tm = bench_createtimer(); bench_init(&benchstate, tm); | |
134 | ego(argv[0]); | |
135 | for (;;) { | |
136 | opt = mdwopt(argc, argv, "hvu" "f:o:t:", options, 0, 0, 0); | |
137 | if (opt < 0) break; | |
138 | switch (opt) { | |
139 | case 'h': help(stdout); exit(0); | |
140 | case 'v': version(stdout); exit(0); | |
141 | case 'u': usage(stdout); exit(0); | |
142 | ||
143 | case 'f': of = find_outform(optarg); break; | |
144 | case 'o': | |
145 | if (ofp) fclose(ofp); | |
146 | ofp = fopen(optarg, "w"); | |
147 | if (!ofp) | |
148 | die(2, "failed to open `%s' for writing: %s", | |
149 | optarg, strerror(errno)); | |
150 | break; | |
151 | case 't': | |
152 | errno = 0; t = strtod(optarg, &q); | |
153 | while (ISSPACE(*q)) q++; | |
154 | if (errno || *q || t < 0) die(2, "invalid time `%s'", optarg); | |
155 | benchstate.target_s = t; | |
156 | break; | |
157 | ||
158 | default: | |
159 | f |= f_bogus; | |
160 | break; | |
161 | } | |
162 | } | |
163 | if (f&f_bogus) { usage(stderr); exit(2); } | |
164 | if (!ofp) ofp = stdout; | |
165 | if (!of) { | |
166 | p = getenv("TVEC_FORMAT"); | |
167 | if (p) of = find_outform(p); | |
168 | } | |
169 | if (of) o = of->makefn(ofp); | |
170 | else o = tvec_dfltout(ofp); | |
171 | ||
172 | tvec_begin(tv_out, info, o); *argpos_out = optind; | |
173 | } | |
174 | ||
175 | void tvec_readstdin(struct tvec_state *tv) | |
176 | { tvec_read(tv, "<stdin>", stdin); } | |
177 | ||
178 | void tvec_readfile(struct tvec_state *tv, const char *file) | |
179 | { | |
180 | FILE *fp; | |
181 | ||
182 | fp = fopen(file, "r"); | |
183 | if (!fp) | |
184 | tvec_error(tv, "failed to open `%s' for reading: %s", | |
185 | file, strerror(errno)); | |
186 | tvec_read(tv, file, fp); | |
187 | fclose(fp); | |
188 | } | |
189 | ||
190 | void tvec_readdflt(struct tvec_state *tv, const char *file) | |
191 | { | |
192 | dstr d = DSTR_INIT; | |
193 | const char *p; | |
194 | ||
195 | if (file) { | |
196 | p = getenv("srcdir"); | |
197 | if (p) | |
198 | { dstr_putf(&d, "%s/%s", p, file); file = d.buf; } | |
199 | tvec_readfile(tv, file); | |
200 | } else if (isatty(0)) | |
201 | tvec_error(tv, "use `-' to force reading from interactive stdin"); | |
202 | else | |
203 | tvec_readstdin(tv); | |
204 | } | |
205 | ||
206 | void tvec_readarg(struct tvec_state *tv, const char *arg) | |
207 | { | |
208 | if (STRCMP(arg, ==, "-")) tvec_readstdin(tv); | |
209 | else tvec_readfile(tv, arg); | |
210 | } | |
211 | ||
212 | void tvec_readargs(int argc, char *argv[], struct tvec_state *tv, | |
213 | int *argpos_inout, const char *dflt) | |
214 | { | |
215 | int i = *argpos_inout; | |
216 | ||
217 | ||
218 | if (i == argc) tvec_readdflt(tv, dflt); | |
219 | else while (i < argc) tvec_readarg(tv, argv[i++]); | |
220 | *argpos_inout = i; | |
221 | } | |
222 | ||
223 | int tvec_main(int argc, char *argv[], | |
224 | const struct tvec_info *info, const char *dflt) | |
225 | { | |
226 | struct tvec_state tv; | |
227 | int argpos; | |
228 | ||
229 | tvec_parseargs(argc, argv, &tv, &argpos, info); | |
230 | tvec_readargs(argc, argv, &tv, &argpos, dflt); | |
231 | return (tvec_end(&tv)); | |
232 | } | |
233 | ||
234 | /*----- That's all, folks -------------------------------------------------*/ |