int main(int argc, char *argv[]) { char answ[MAX_ANSW_SIZE]; char character[MAX_ANSW_SIZE]; character[0] = '0'; printWelcome(); seedDb(50); while(tolower(character[0]) != 'x') { listOptions(); ask_question(answ, "Command me, master:", "Invalid input master, try again:", CHARACTER); strcpy(character, answ); if(!executeCommand(character)) { printf("Invalid input, try again\n"); } } return 0; }
int main(int argc, char *argv[]){ if (argc < 2){ puts("Usage: db [FILE]"); return -1; } Collection dbCollection = mkCollection(); char buffer[128]; printWelcome(); // Read the input file readInputFromFile(dbCollection, argv[1], buffer); // Main loop int choice = -1; while(choice != 0){ puts("Please choose an operation"); puts("1. Query a key"); puts("2. Update an entry"); puts("3. New entry"); puts("4. Remove entry"); puts("5. Print database"); puts("0. Exit database"); printf("? "); scanf("%d", &choice); while(getchar() != '\n'); // Clear stdin switch(choice){ case 1: // Query printf("Enter key: "); readline(buffer, 128, stdin); puts("Searching database...\n"); char *aStr = collectionGetValueByKey(dbCollection,buffer); if (aStr != NULL){ puts("Found entry:"); printf("key: %s\nvalue: %s\n",buffer, aStr); }else { printf("Could not find an entry matching key \"%s\"!\n", buffer); } break; case 2: // Update printf("Enter key: "); readline(buffer, 128, stdin); puts("Searching database...\n"); char *uValue = collectionGetValueByKey(dbCollection,buffer); if (uValue != NULL){ puts("Matching entry found:"); printf("key: %s\nvalue: %s\n\n", buffer, uValue); char *uKey = malloc(strlen(buffer) +1); strcpy(uKey, buffer); puts("Enter new value: "); readline(buffer, 128, stdin); int success = collectionInsertKeyValuePair(dbCollection,uKey,buffer); if (success == 1){ printf ("New value: %s Inserted successfully with key: %s",buffer,uKey); }else{ puts("FAILED!"); } free(uKey); }else{ printf("Could not find an entry matching key \"%s\"!\n", buffer); } break; case 3: // Insert printf("Enter key: "); readline(buffer, 128, stdin); char* iKey = malloc(strlen(buffer) +1); strcpy(iKey, buffer); puts("Searching database for duplicate keys..."); int keyExist = collectionDoseKeyExist(dbCollection,iKey); if (keyExist == 1) { printf("key \"%s\" already exists!\n",iKey); }else{ puts("Key is unique!\n"); printf("Enter value: "); readline(buffer, 128, stdin); char *iValue = malloc(strlen(buffer) +1); strcpy(iValue, buffer); int success = collectionInsertKeyValuePair(dbCollection,iKey,iValue); if (success == 1){ printf ("New value: %s Inserted successfully with key: %s",iValue,iKey); }else{ puts("FAILED!"); } free(iValue); } free(iKey); break; case 4: // Delete printf("Enter key: "); readline(buffer, 128, stdin); char* dKey = malloc(strlen(buffer) +1); strcpy (dKey, buffer); puts("Searching database...\n"); char * dValue = malloc(strlen(buffer) +1); strcpy(dValue,collectionGetValueByKey(dbCollection,dKey)); int sign = collectionRemoveKeyValuePair(dbCollection,dKey); if (sign != 0){ printf("Deleted the following entry:\nkey: %s\nvalue: %s\n", dKey, dValue); } else{ printf("Could not find an entry matching key \"%s\"!\n", dKey); } free(dValue); free(dKey); break; case 5: collectionPrint(dbCollection); break; case 0: // Exit puts("Cleaning up memory.."); rmCollection(dbCollection); puts("Good bye!"); break; default: // Please try again puts("Could not parse choice! Please try again"); } puts(""); } return 0; }
int main(int argc, char* argv[]) { printWelcome(); return 0; }
int main(int argc, const char *argv[]) { poptContext optCon; /* context for parsing command-line options */ int rc, version = 0, debugMask = 0, pipeFD[2] = {-1, -1}, magic = FORKMAGIC; char *logdest = NULL, *configfile = "/etc/parastation.conf"; FILE *logfile = NULL; struct poptOption optionsTable[] = { { "debug", 'd', POPT_ARG_INT, &debugMask, 0, "enable debugging with mask <mask>", "mask"}, { "configfile", 'f', POPT_ARG_STRING, &configfile, 0, "use <file> as config-file (default is /etc/parastation.conf)", "file"}, { "logfile", 'l', POPT_ARG_STRING, &logdest, 0, "use <file> for logging (default is syslog(3))." " <file> may be 'stderr' or 'stdout'", "file"}, { "version", 'v', POPT_ARG_NONE, &version, 0, "output version information and exit", NULL}, POPT_AUTOHELP { NULL, '\0', 0, NULL, 0, NULL, NULL} }; optCon = poptGetContext(NULL, argc, argv, optionsTable, 0); rc = poptGetNextOpt(optCon); /* Store arguments for later modification in forwarders, etc. */ PSID_argc = argc; PSID_argv = argv; if (version) { printVersion(); return 0; } if (logdest) { if (strcasecmp(logdest, "stderr")==0) { logfile = stderr; } else if (strcasecmp(logdest, "stdout")==0) { logfile = stdout; } else { logfile = fopen(logdest, "a+"); if (!logfile) { char *errstr = strerror(errno); fprintf(stderr, "Cannot open logfile '%s': %s\n", logdest, errstr ? errstr : "UNKNOWN"); exit(1); } } } if (!logfile) { openlog("psid", LOG_PID|LOG_CONS, LOG_DAEMON); } PSID_initLogs(logfile); printWelcome(); if (rc < -1) { /* an error occurred during option processing */ poptPrintUsage(optCon, stderr, 0); PSID_log(-1, "%s: %s\n", poptBadOption(optCon, POPT_BADOPTION_NOALIAS), poptStrerror(rc)); if (!logfile) fprintf(stderr, "%s: %s\n", poptBadOption(optCon, POPT_BADOPTION_NOALIAS), poptStrerror(rc)); return 1; } /* Save some space in order to modify the cmdline later on */ PSC_saveTitleSpace(PSID_argc, PSID_argv, 1); if (logfile!=stderr && logfile!=stdout) { /* Daemonize only if neither stdout nor stderr is used for logging */ if (pipe(pipeFD) < 0) { PSID_exit(errno, "unable to create pipe"); } /* Start as daemon */ switch (fork()) { case -1: PSID_exit(errno, "unable to fork server process"); break; case 0: /* I'm the child (and running further) */ close (pipeFD[0]); break; default: /* I'm the parent and exiting */ close (pipeFD[1]); /* Wait for child's magic data */ rc = read(pipeFD[0], &magic, sizeof(magic)); if (rc != sizeof(magic) || magic != (FORKMAGIC)) return -1; return 0; } } #define _PATH_TTY "/dev/tty" /* First disconnect from the old controlling tty. */ { int fd = open(_PATH_TTY, O_RDWR | O_NOCTTY); if (fd >= 0) { if (ioctl(fd, TIOCNOTTY, NULL)) { PSID_warn(-1, errno, "%s: ioctl(TIOCNOTTY)", __func__); } close(fd); } } /* * Disable stdin,stdout,stderr and install dummy replacement * Take care if stdout/stderr is used for logging */ { int dummy_fd; dummy_fd=open("/dev/null", O_WRONLY , 0); dup2(dummy_fd, STDIN_FILENO); if (logfile!=stdout) dup2(dummy_fd, STDOUT_FILENO); if (logfile!=stderr) dup2(dummy_fd, STDERR_FILENO); close(dummy_fd); } /* Forget about inherited window sizes */ unsetenv("LINES"); unsetenv("COLUMNS"); if (debugMask) { PSID_setDebugMask(debugMask); PSC_setDebugMask(debugMask); PSID_log(-1, "Debugging mode (mask 0x%x) enabled\n", debugMask); } /* Init the Selector facility as soon as possible */ if (!Selector_isInitialized()) Selector_init(logfile); PSID_registerLoopAct(Selector_gc); /* Initialize timer facility explicitely to ensure correct logging */ if (!Timer_isInitialized()) Timer_init(logfile); /* * Create the Local Service Port as early as possible. Actual * handling is enabled later. This gives psiadmin the chance to * connect. Additionally, this will guarantee exclusiveness */ PSID_createMasterSock(PSmasterSocketName); PSID_checkMaxPID(); /* read the config file */ PSID_readConfigFile(logfile, configfile); /* Now we can rely on the config structure */ { in_addr_t addr; PSID_log(-1, "My ID is %d\n", PSC_getMyID()); addr = PSIDnodes_getAddr(PSC_getMyID()); PSID_log(-1, "My IP is %s\n", inet_ntoa(*(struct in_addr *) &addr)); } if (!logfile && PSID_config->logDest!=LOG_DAEMON) { PSID_log(-1, "Changing logging dest from LOG_DAEMON to %s\n", PSID_config->logDest==LOG_KERN ? "LOG_KERN": PSID_config->logDest==LOG_LOCAL0 ? "LOG_LOCAL0" : PSID_config->logDest==LOG_LOCAL1 ? "LOG_LOCAL1" : PSID_config->logDest==LOG_LOCAL2 ? "LOG_LOCAL2" : PSID_config->logDest==LOG_LOCAL3 ? "LOG_LOCAL3" : PSID_config->logDest==LOG_LOCAL4 ? "LOG_LOCAL4" : PSID_config->logDest==LOG_LOCAL5 ? "LOG_LOCAL5" : PSID_config->logDest==LOG_LOCAL6 ? "LOG_LOCAL6" : PSID_config->logDest==LOG_LOCAL7 ? "LOG_LOCAL7" : "UNKNOWN"); closelog(); openlog("psid", LOG_PID|LOG_CONS, PSID_config->logDest); printWelcome(); } /* call startupScript, if any */ if (PSID_config->startupScript && *PSID_config->startupScript) { int ret = PSID_execScript(PSID_config->startupScript, NULL, NULL, NULL); if (ret > 1) { PSID_log(-1, "startup script '%s' failed. Exiting...\n", PSID_config->startupScript); PSID_finalizeLogs(); exit(1); } } /* Setup handling of signals */ initSigHandlers(); if (PSID_config->coreDir) { if (chdir(PSID_config->coreDir) < 0) { PSID_warn(-1, errno, "Unable to chdir() to coreDirectory '%s'", PSID_config->coreDir); } } PSIDnodes_setProtoV(PSC_getMyID(), PSProtocolVersion); PSIDnodes_setDmnProtoV(PSC_getMyID(), PSDaemonProtocolVersion); PSIDnodes_setHWStatus(PSC_getMyID(), 0); PSIDnodes_setKillDelay(PSC_getMyID(), PSID_config->killDelay); PSIDnodes_setAcctPollI(PSC_getMyID(), PSID_config->acctPollInterval); /* Bring node up with correct numbers of CPUs */ declareNodeAlive(PSC_getMyID(), PSID_getPhysCPUs(), PSID_getVirtCPUs()); /* Initialize timeouts, etc. */ PSID_initStarttime(); /* initialize various modules */ PSIDcomm_init(); /* This has to be first since it gives msgHandler hash */ PSIDclient_init(); initState(); initOptions(); initStatus(); initSignal(); PSIDspawn_init(); initPartition(); initHW(); initAccount(); initInfo(); initEnvironment(); /* Plugins shall be last since they use most of the ones before */ initPlugins(); /* Now we start all the hardware -- this might include the accounter */ PSID_log(PSID_LOG_HW, "%s: starting up the hardware\n", __func__); PSID_startAllHW(); /* * Prepare hostlist to initialize RDP and MCast */ { in_addr_t *hostlist; int i; hostlist = malloc(PSC_getNrOfNodes() * sizeof(unsigned int)); if (!hostlist) { PSID_exit(errno, "Failed to get memory for hostlist"); } for (i=0; i<PSC_getNrOfNodes(); i++) { hostlist[i] = PSIDnodes_getAddr(i); } if (PSID_config->useMCast) { /* Initialize MCast */ int MCastSock = initMCast(PSC_getNrOfNodes(), PSID_config->MCastGroup, PSID_config->MCastPort, logfile, hostlist, PSC_getMyID(), MCastCallBack); if (MCastSock<0) { PSID_exit(errno, "Error while trying initMCast"); } setDeadLimitMCast(PSID_config->deadInterval); PSID_log(-1, "MCast and "); } else { setStatusTimeout(PSID_config->statusTimeout); setMaxStatBCast(PSID_config->statusBroadcasts); setDeadLimit(PSID_config->deadLimit); setTmOutRDP(PSID_config->RDPTimeout); } /* Initialize RDP */ RDPSocket = RDP_init(PSC_getNrOfNodes(), PSIDnodes_getAddr(PSC_getMyID()), PSID_config->RDPPort, logfile, hostlist, PSIDRDP_handleMsg, RDPCallBack); if (RDPSocket<0) { PSID_exit(errno, "Error while trying initRDP"); } PSID_log(-1, "RDP (%d) initialized.\n", RDPSocket); free(hostlist); } /* Now start to listen for clients */ PSID_enableMasterSock(); /* Once RDP and the master socket are ready parents might be released */ if (pipeFD[1] > -1) { if (write(pipeFD[1], &magic, sizeof(magic)) <= 0) { /* We don't care */ } close(pipeFD[1]); } PSID_log(-1, "SelectTime=%d sec DeadInterval=%d\n", PSID_config->selectTime, PSID_config->deadInterval); /* Trigger status stuff, if necessary */ if (PSID_config->useMCast) { declareMaster(PSC_getMyID()); } else { int id = 0; while (id < PSC_getMyID() && (send_DAEMONCONNECT(id) < 0 && errno == EHOSTUNREACH)) { id++; } if (id == PSC_getMyID()) declareMaster(id); } /* * Main loop */ while (1) { int res = Swait(PSID_config->selectTime * 1000); if (res < 0) PSID_warn(-1, errno, "Error while Swait()"); /* Handle actions registered to main-loop */ PSID_handleLoopActions(); } }