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 */
42 static char* pidfile = NULL;
43 static char* logfile = NULL;
44 static bool daemonize = false;
45 static char tfile[MAXPATHLEN],
48 static const double coefficient = (248e-6 / 2637.0);
51 usage(const char *errmsg) {
52 puts("trinketd - collecting info from AtomPro");
53 puts("Copyright (c) 2016, Teodor Sigaev <teodor@sigaev.ru>");
54 puts("trinketd [-d] [-l logfile] [-p pidfile] [-P period] [-D datadir]");
72 if (trinketOpen() != ERR_OK) {
73 fprintf(stderr, "trinketOpen fails\n");
78 while(42 && stopRequest == false) {
79 if (trinketGetCumDose(&curDose) != ERR_OK) {
80 fprintf(stderr, "trinketGetCumDose fails\n");
86 if (prevDose >= 0.0) {
87 double counts = curDose - prevDose;
88 double radlevel = coefficient * counts * 3600.0 / (double)period;
90 bool successOpen = true;
93 if ((fh = fopen(tfile, "w")) == NULL) {
94 fprintf(stderr, "fopen fails\n");
100 fprintf(fh, "total: %lld\n", (long long)curDose);
101 fprintf(fh, "counts: %lld\n", (long long)counts);
102 fprintf(fh, "radlevel: %e\n", radlevel);
105 if (fh && fh != stdout) {
108 rename(tfile, ofile);
121 extern int opterr, optind;
124 main(int argn, char* argv[]) {
130 while((i=getopt(argn,argv,"dD:p:P:h")) != EOF) {
136 dbdir = strdup(optarg);
139 pidfile = strdup(optarg);
142 period = atoi(optarg);
150 if (opterr || optind != argn)
151 usage("argument err");
154 usage("Collecting period could not be zero nor negative");
156 if (daemonize && !dbdir)
157 usage("trinketd: it is useless to use -d without -D");
159 if (dbdir && strlen(dbdir) > MAXPATHLEN - 32)
160 usage("datadir is too long");
163 pidfd = open(pidfile, O_CREAT | O_WRONLY | O_TRUNC, 0666);
165 usage("could not write pidfile");
169 logfd = open(logfile, O_CREAT | O_WRONLY | O_APPEND, 0666);
171 usage("could not write logfile");
175 if (daemon(0, 0) == -1)
176 usage("could not daemonize");
182 snprintf(pid, sizeof(pid), "%lld", (long long)getpid());
183 if (write(pidfd, pid, strlen(pid)) != strlen(pid))
184 usage("could not write pid");
189 dup2(logfd, fileno(stderr));
193 if (hid_init() < 0) {
194 fprintf(stderr, "hid_init fails\n");
199 snprintf(tfile, MAXPATHLEN, "%s/trinket.tmp", dbdir);
200 snprintf(ofile, MAXPATHLEN, "%s/trinket.dat", dbdir);