1 /*-------------------------------------------------------------------------
4 * Copyright (c) 2016, Teodor Sigaev <teodor@sigaev.ru>
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 *-------------------------------------------------------------------------
35 #include <hidapi/hidapi.h>
36 #include <sys/param.h>
40 static char* dbdir = NULL;
41 static int period = 300; /* in seconds */
43 static char* pidfile = NULL;
44 static char* logfile = NULL;
45 static bool daemonize = false;
46 static bool workaround = false;
47 static char tfile[MAXPATHLEN],
50 static const double coefficient = (248e-6 / 2637.0);
53 usage(const char *errmsg) {
54 puts("trinketd - collecting info from AtomPro");
55 puts("Copyright (c) 2016, Teodor Sigaev <teodor@sigaev.ru>");
56 puts("trinketd [-d] [-l logfile] [-p pidfile] [-P period] [-D datadir] [-i tics] [-w]");
73 prevDose = malloc(sizeof(*prevDose) * (tics + 1));
75 fprintf(stderr, "could not allocate array, exiting...\n");
82 if (trinketOpen() != ERR_OK) {
83 fprintf(stderr, "trinketOpen fails\n");
93 if (trinketGetCumDose(&curDose) != ERR_OK) {
94 fprintf(stderr, "trinketGetCumDose fails\n");
100 if (collected <= tics) {
101 prevDose[collected++] = curDose;
103 for (i=1; i<=tics; i++)
104 prevDose[i - 1] = prevDose[i];
105 prevDose[tics] = curDose;
109 double counts = curDose - prevDose[0];
110 double radlevel = 1e6 * coefficient * counts * 3600.0 /
111 (double)(period * (collected - 1));
113 bool successOpen = true;
116 if ((fh = fopen(tfile, "w")) == NULL) {
117 fprintf(stderr, "fopen fails\n");
123 fprintf(fh, "total: %lld\n", (long long)curDose);
124 fprintf(fh, "counts: %lld\n", (long long)counts);
125 fprintf(fh, "tics: %d\n", collected - 1);
126 fprintf(fh, "radlevel: %.02f\n", radlevel);
129 if (fh && fh != stdout) {
132 rename(tfile, ofile);
144 extern int opterr, optind;
147 main(int argn, char* argv[]) {
153 while((i=getopt(argn,argv,"dD:i:l:p:P:wh")) != EOF) {
159 dbdir = strdup(optarg);
165 logfile = strdup(optarg);
168 pidfile = strdup(optarg);
171 period = atoi(optarg);
182 if (opterr || optind != argn)
183 usage("argument err");
186 usage("Collecting period could not be zero nor negative");
189 usage("Number of tics could not be zero nor negative");
191 if (daemonize && !dbdir)
192 usage("trinketd: it is useless to use -d without -D");
194 if (dbdir && strlen(dbdir) > MAXPATHLEN - 32)
195 usage("datadir is too long");
198 pidfd = open(pidfile, O_CREAT | O_WRONLY | O_TRUNC, 0666);
200 usage("could not write pidfile");
204 logfd = open(logfile, O_CREAT | O_WRONLY | O_APPEND, 0666);
206 usage("could not write logfile");
210 if (daemon(0, 0) == -1)
211 usage("could not daemonize");
217 snprintf(pid, sizeof(pid), "%lld", (long long)getpid());
218 if (write(pidfd, pid, strlen(pid)) != strlen(pid))
219 usage("could not write pid");
224 dup2(logfd, fileno(stderr));
228 if (hid_init() < 0) {
229 fprintf(stderr, "hid_init fails\n");
234 snprintf(tfile, MAXPATHLEN, "%s/trinket.tmp", dbdir);
235 snprintf(ofile, MAXPATHLEN, "%s/trinket.dat", dbdir);