--- embedtools/src/pceng.c 2011/07/22 13:35:06 1.1.2.2 +++ embedtools/src/pceng.c 2011/07/25 09:13:34 1.1.2.8 @@ -3,7 +3,7 @@ * by Michael Pounov * * $Author: misho $ - * $Id: pceng.c,v 1.1.2.2 2011/07/22 13:35:06 misho Exp $ + * $Id: pceng.c,v 1.1.2.8 2011/07/25 09:13:34 misho Exp $ * ************************************************************************* The ELWIX and AITNET software is distributed under the following @@ -47,9 +47,10 @@ SUCH DAMAGE. #include "pceng.h" -int Verbose; +int Verbose, Kill; extern char compiled[], compiledby[], compilehost[]; sl_config cfg; +char szConf[MAXPATHLEN] = DEFAULT_PCENG_CFG; static void @@ -57,28 +58,55 @@ Usage() { printf( "-= PCEngines =- events managment tool\n" "=== %s === %s@%s ===\n\n" - " Syntax: pceng [options]\n" + " Syntax: pceng [options] [led_no[=<0|1>] ...]\n" "\n" "\t-v\t\tVerbose ...\n" - "\t-b\t\tRun in batch mode ...\n" + "\t-D\t\tRun in background mode ...\n" "\t-c \tConfig events file ...\n" "\n", compiled, compiledby, compilehost); } +static void +sigHand(int sig) +{ + int stat; + switch (sig) { + case SIGHUP: + UnloadConfig(&cfg); + if (LoadConfig(szConf, &cfg)) { + syslog(LOG_ERR, "Error:: #%d - %s", cfg_GetErrno(), cfg_GetError()); + raise(SIGTERM); + } + VERB(1) syslog(LOG_WARNING, "Reload config %s", szConf); + break; + case SIGTERM: + VERB(1) syslog(LOG_WARNING, "Kill process ..."); + Kill++; + break; + case SIGCHLD: + while (waitpid(-1, &stat, WNOHANG) > 0); + } +} + + int main(int argc, char **argv) { - char ch, szConf[MAXPATHLEN] = DEFAULT_PCENG_CFG; - int mode = 0; + char ch, ledno, *pos; + int i, ret = 0, mode = 1; + struct sigaction sact; +#ifdef HAVE_IO + int io; +#endif - while ((ch = getopt(argc, argv, "vhbc:")) != -1) + while ((ch = getopt(argc, argv, "vhDc:")) != -1) switch (ch) { case 'c': strlcpy(szConf, optarg, sizeof szConf); break; - case 'b': - mode = 1; + case 'D': + mode = 0; break; case 'v': Verbose++; @@ -91,11 +119,81 @@ main(int argc, char **argv) argc -= optind; argv += optind; + if (!mode) + openlog("pceng", LOG_CONS | LOG_PID, LOG_DAEMON); + else + openlog("pceng", LOG_CONS | LOG_PID | LOG_PERROR, LOG_USER); + +#ifdef HAVE_IO + io = open(_PATH_DEVIO, O_RDONLY); + if (io == -1) { + printf("Error:: in open dev %s #%d - %s\n", _PATH_DEVIO, errno, strerror(errno)); + ret = 2; + goto end; + } +#endif + if (LoadConfig(szConf, &cfg)) { printf("Error:: #%d - %s\n", cfg_GetErrno(), cfg_GetError()); + ret = 1; return 1; } + if (argc) { + VERB(1) syslog(LOG_WARNING, "LED client ..."); + for (i = 0; !ret && i < argc; pos = NULL, i++) { + if ((pos = strchr(argv[i], '='))) { + *pos++ = 0; + ledno = (char) strtol(argv[i], NULL, 0); + ch = (char) strtol(pos, NULL, 0); + } else { + ledno = (char) strtol(argv[i], NULL, 0); + ch = -1; + } + ret = LED((u_char) ledno, (u_char) ch); + } + goto end; + } + + sact.sa_handler = sigHand; + sigemptyset(&sact.sa_mask); + sigaction(SIGHUP, &sact, NULL); + sigaction(SIGTERM, &sact, NULL); + sigaction(SIGCHLD, &sact, NULL); + + if (!mode) + switch (fork()) { + case -1: + printf("Error:: #%d - %s\n", errno, strerror(errno)); + ret = 1; + goto end; + case 0: + VERB(1) printf("Welcome into darkness ...\n"); + + setsid(); + chdir("/"); + + mode = open(_PATH_DEVNULL, O_RDWR); + if (mode > 2) { + dup2(mode, STDIN_FILENO); + dup2(mode, STDOUT_FILENO); + dup2(mode, STDERR_FILENO); + close(mode); + } + break; + default: + VERB(1) printf("PCENG Going to shadow land ...\n"); + goto end; + } + + ret = Run(); + +end: UnloadConfig(&cfg); - return 0; +#ifdef HAVE_IO + if (io > 2) + close(io); +#endif + closelog(); + return ret; }