C++ setlinebuf函数代码示例

int main (int argc, char *argv[]) {
    char           *dev = NULL;
    char		errbuf    [ERRBUF_SIZE];	/* Error string */
    struct bpf_program fp;	/* The compiled filter */
    char		filter_exp[] = "ether proto 0x88d9"; //"port 80";	/* The filter expression */
    bpf_u_int32	mask;	/* Our netmask */
    bpf_u_int32	net;	/* Our IP */
    struct pcap_pkthdr header;
    const u_char   *packet;
    int c,i;
    libnet_t       *l;
    libnet_ptag_t   eth_ptag = 0;
    u_char buf[0x100];
    struct itimerspec tspec;

    memset(&tspec, 0, sizeof(tspec));
    tspec.it_value.tv_sec = 3;

    while ((c = getopt(argc, argv, "t:i:hvu")) != EOF) {
        switch (c) {
        case 'i': // interface
            dev = optarg;
            break;
        case 't': // timeout
            i = atoi(optarg);
            if( i>0 ) {
#ifndef __linux__
                if( i > PCAP_PERIOD ) i-=PCAP_PERIOD-10; // try to be more precise
#endif
                tspec.it_value.tv_sec = i/1000;
                tspec.it_value.tv_nsec = (i%1000)*1000000;
            }
            break;
        case 'v': // verbosity
            verbose++;
            break;
        case 'u': // unicode support
            unicode = 1;
            break;
        case 'h': // show usage
            usage(argv[0]);
            exit(EXIT_SUCCESS);
        default:
            exit(EXIT_FAILURE);
        }
    }
    argc -= optind;
    argv += optind;

    if( argc > 1 ) {
        usage(argv[0]);
        exit(EXIT_FAILURE);
    }
    if( argc == 1 ) {
        if( strlen(argv[0]) != 17 ) {
            fprintf(stderr, "Invalid MAC-address: '%s'\n", argv[0]);
            exit(EXIT_FAILURE);
        }
        mac_to_find = argv[0];
    }

    setlinebuf(stdout);

    if(!dev) dev = pcap_lookupdev(errbuf);
    if (dev == NULL) {
        fprintf(stderr, "Couldn't find default device: %s\n", errbuf);
        return (2);
    }

    printf("interface %s\n",dev);

    l = libnet_init(LIBNET_LINK, dev, errbuf);
    if (l == NULL) {
        fprintf(stderr, "libnet_init() failed: %s", errbuf);
        exit(EXIT_FAILURE);
    }

    /* Find the properties for the device */
    if (pcap_lookupnet(dev, &net, &mask, errbuf) == -1) {
        fprintf(stderr, "Couldn't get netmask for device %s: %s\n", dev, errbuf);
        net = 0;
        mask = 0;
    }

    struct ether_addr *ha = NULL;
    if ((ha = (struct ether_addr *) libnet_get_hwaddr(l)) == NULL) {
        fprintf(stderr, "%s", libnet_geterror(l));
        exit(EXIT_FAILURE);
    }

    // LLTP magic packet
    char* payload = "\x01\x00\x00\x00\xff\xff\xff\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00";
    char* hwdst   = "\xff\xff\xff\xff\xff\xff";

    memcpy(buf,payload,18);
    memcpy(buf+10, ha, 6);

    gettimeofday(&start_time, NULL);
    memcpy(buf+16, &start_time.tv_sec, 2); // emulate sequence number

//.........这里部分代码省略.........

static int testserver_exec(struct ast_channel *chan, const char *data)
{
	int res = 0;
	char testid[80]="";
	char fn[80];
	FILE *f;
	if (ast_channel_state(chan) != AST_STATE_UP)
		res = ast_answer(chan);
	/* Read version */
	ast_debug(1, "Read client version\n");
	if (!res)
		res = ast_app_getdata(chan, NULL, testid, sizeof(testid) - 1, 0);
	if (res > 0)
		res = 0;

	ast_debug(1, "client version: %s\n", testid);
	ast_debug(1, "Transmit server version\n");

	res = ast_safe_sleep(chan, 1000);
	if (!res)
		res = ast_dtmf_stream(chan, NULL, "8378*1#", 0, 0);
	if (res > 0)
		res = 0;

	if (!res)
		res = ast_app_getdata(chan, NULL, testid, sizeof(testid) - 1, 0);
	ast_debug(1, "read test identifier: %s\n", testid);
	/* Check for sneakyness */
	if (strchr(testid, '/'))
		res = -1;
	if ((res >=0) && (!ast_strlen_zero(testid))) {
		/* Got a Test ID!  Whoo hoo! */
		/* Make the directory to hold the test results in case it's not there */
		snprintf(fn, sizeof(fn), "%s/testresults", ast_config_AST_LOG_DIR);
		ast_mkdir(fn, 0777);
		snprintf(fn, sizeof(fn), "%s/testresults/%s-server.txt", ast_config_AST_LOG_DIR, testid);
		if ((f = fopen(fn, "w+"))) {
			setlinebuf(f);
			fprintf(f, "SERVERCHAN:    %s\n", ast_channel_name(chan));
			fprintf(f, "SERVERTEST ID: %s\n", testid);
			fprintf(f, "ANSWER:        PASS\n");
			ast_debug(1, "Processing Test ID '%s'\n", testid);
			res = ast_safe_sleep(chan, 1000);
			if (!res) {
				/* Step 1: Send "1" */
				ast_debug(1, "TestServer: 1.  Send DTMF 1\n");
				res = ast_dtmf_stream(chan, NULL, "1", 0,0 );
				fprintf(f, "SEND DTMF 1:   %s\n", (res < 0) ? "FAIL" : "PASS");
				if (res > 0)
					res = 0;
			}
			if (!res) {
				/* Step 2: Wait for "2" */
				ast_debug(1, "TestServer: 2.  Wait DTMF 2\n");
				res = ast_waitfordigit(chan, 3000);
				fprintf(f, "WAIT DTMF 2:   %s\n", (res != '2') ? "FAIL" : "PASS");
				if (res == '2')
					res = 0;
				else
					res = -1;
			}
			if (!res) {
				/* Step 3: Measure noise */
				ast_debug(1, "TestServer: 3.  Measure noise\n");
				res = measurenoise(chan, 6000, "TestServer");
				fprintf(f, "MEASURENOISE:  %s (%d)\n", (res < 0) ? "FAIL" : "PASS", res);
				if (res > 0)
					res = 0;
			}
			if (!res) {
				/* Step 4: Send "4" */
				ast_debug(1, "TestServer: 4.  Send DTMF 4\n");
				res = ast_dtmf_stream(chan, NULL, "4", 0, 0);
				fprintf(f, "SEND DTMF 4:   %s\n", (res < 0) ? "FAIL" : "PASS");
				if (res > 0)
					res = 0;
			}
			if (!res) {
				/* Step 5: Wait one second */
				ast_debug(1, "TestServer: 5.  Wait one second\n");
				res = ast_safe_sleep(chan, 1000);
				fprintf(f, "WAIT 1 SEC:    %s\n", (res < 0) ? "FAIL" : "PASS");
				if (res > 0)
					res = 0;
			}
			if (!res) {
				/* Step 6: Measure noise */
				ast_debug(1, "TestServer: 6.  Measure tone\n");
				res = measurenoise(chan, 4000, "TestServer");
				fprintf(f, "MEASURETONE:   %s (%d)\n", (res < 0) ? "FAIL" : "PASS", res);
				if (res > 0)
					res = 0;
			}
			if (!res) {
				/* Step 7: Send "5" */
				ast_debug(1, "TestServer: 7.  Send DTMF 5\n");
				res = ast_dtmf_stream(chan, NULL, "5", 0, 0);
				fprintf(f, "SEND DTMF 5:   %s\n", (res < 0) ? "FAIL" : "PASS");
				if (res > 0)
					res = 0;
//.........这里部分代码省略.........

//.........这里部分代码省略.........
	    case 'r':
		retry_forever++;
		break;

	    case 's':
		do_syslog++;
		break;

	    case 't':
		mrt_table_id = strtonum(optarg, 0, 999999999, &errstr);
		if (errstr) {
		    fprintf(stderr, "Table ID %s!\n", errstr);
		    return usage(1);
		}
		break;

	    case 'v':
		printf("%s\n", versionstring);
		return 0;

	    default:
		return usage(1);
	}
    }

    argc -= optind;
    if (argc > 0)
	return usage(1);

    if (geteuid() != 0)
	errx(1, "Need root privileges to start.");

    compose_paths();
    setlinebuf(stderr);

    if (debug != 0) {
	struct debugname *d;
	char c;
	int tmpd = debug;

	fprintf(stderr, "debug level 0x%lx ", debug);
	c = '(';
	for (d = debugnames; d < debugnames + ARRAY_LEN(debugnames); d++) {
	    if ((tmpd & d->level) == d->level) {
		tmpd &= ~d->level;
		fprintf(stderr, "%c%s", c, d->name);
		c = ',';
	    }
	}
	fprintf(stderr, ")\n");
    }

    if (!debug && !foreground) {
	/* Detach from the terminal */
	haveterminal = 0;
	if (fork())
	    exit(0);

	close(STDIN_FILENO);
	close(STDOUT_FILENO);
	close(STDERR_FILENO);

	fd = open("/dev/null", O_RDWR, 0);
	if (fd >= 0) {
	    dup2(fd, STDIN_FILENO);
	    dup2(fd, STDOUT_FILENO);

/* Adapted from auditd auditd-event.c */
static gboolean
open_log_file (const char *filename,
               int        *fdp,
               FILE      **filep)
{
        int      flags;
        int      fd;
        FILE    *file;
        gboolean ret;

        ret = FALSE;

        /*
         * Likely errors on rotate: ENFILE, ENOMEM, ENOSPC
         */
        flags = O_WRONLY | O_APPEND;
#ifdef O_NOFOLLOW
        flags |= O_NOFOLLOW;
#endif

retry:
        fd = g_open (filename, flags, 0600);
        if (fd < 0) {
                if (errno == ENOENT) {
                        /* FIXME: should we just skip if file doesn't exist? */
                        fd = g_open (filename,
                                     O_CREAT | O_EXCL | O_APPEND,
                                     S_IRUSR | S_IWUSR | S_IRGRP);
                        if (fd < 0) {
                                g_warning ("Couldn't create log file %s (%s)",
                                           filename,
                                           g_strerror (errno));
                                goto out;
                        }

                        close (fd);
                        fd = g_open (filename, flags, 0600);
                } else if (errno == ENFILE) {
                        /* All system descriptors used, try again... */
                        goto retry;
                }
                if (fd < 0) {
                        g_warning ("Couldn't open log file %s (%s)",
                                   filename,
                                   g_strerror (errno));
                        goto out;
                }
        }

        if (fcntl (fd, F_SETFD, FD_CLOEXEC) == -1) {
                close (fd);
                g_warning ("Error setting log file CLOEXEC flag (%s)",
                           g_strerror (errno));
                goto out;
        }

        if (fchown (fd, 0, 0) == -1) {
                g_warning ("Error changing owner of log file (%s)",
                           g_strerror (errno));
        }

        file = fdopen (fd, "a");
        if (file == NULL) {
                g_warning ("Error setting up log descriptor (%s)",
                           g_strerror (errno));
                close (fd);
                goto out;
        }

        /* Set it to line buffering */
        setlinebuf (file);

        ret = TRUE;

        if (fdp != NULL) {
                *fdp = fd;
        }
        if (filep != NULL) {
                *filep = file;
        }

 out:

        return ret;
}

/**
  process command line options
*/
struct ldb_cmdline *ldb_cmdline_process(struct ldb_context *ldb, 
					int argc, const char **argv,
					void (*usage)(struct ldb_context *))
{
	struct ldb_cmdline *ret=NULL;
	poptContext pc;
	int num_options = 0;
	int opt;
	unsigned int flags = 0;
	int rc;
	struct poptOption **popt_options;

	/* make the ldb utilities line buffered */
	setlinebuf(stdout);

	ret = talloc_zero(ldb, struct ldb_cmdline);
	if (ret == NULL) {
		fprintf(stderr, "Out of memory!\n");
		goto failed;
	}

	options = *ret;
	
	/* pull in URL */
	options.url = getenv("LDB_URL");

	/* and editor (used by ldbedit) */
	options.editor = getenv("VISUAL");
	if (!options.editor) {
		options.editor = getenv("EDITOR");
	}
	if (!options.editor) {
		options.editor = "vi";
	}

	options.scope = LDB_SCOPE_DEFAULT;

	popt_options = ldb_module_popt_options(ldb);
	(*popt_options) = builtin_popt_options;

	rc = ldb_modules_hook(ldb, LDB_MODULE_HOOK_CMDLINE_OPTIONS);
	if (rc != LDB_SUCCESS) {
		fprintf(stderr, "ldb: failed to run command line hooks : %s\n", ldb_strerror(rc));
		goto failed;
	}

	pc = poptGetContext(argv[0], argc, argv, *popt_options,
			    POPT_CONTEXT_KEEP_FIRST);

	while((opt = poptGetNextOpt(pc)) != -1) {
		switch (opt) {
		case 's': {
			const char *arg = poptGetOptArg(pc);
			if (strcmp(arg, "base") == 0) {
				options.scope = LDB_SCOPE_BASE;
			} else if (strcmp(arg, "sub") == 0) {
				options.scope = LDB_SCOPE_SUBTREE;
			} else if (strcmp(arg, "one") == 0) {
				options.scope = LDB_SCOPE_ONELEVEL;
			} else {
				fprintf(stderr, "Invalid scope '%s'\n", arg);
				goto failed;
			}
			break;
		}

		case 'v':
			options.verbose++;
			break;

		case 'o':
			options.options = talloc_realloc(ret, options.options, 
							 const char *, num_options+3);
			if (options.options == NULL) {
				fprintf(stderr, "Out of memory!\n");
				goto failed;
			}
			options.options[num_options] = poptGetOptArg(pc);
			options.options[num_options+1] = NULL;
			num_options++;
			break;

		case 'c': {
			const char *cs = poptGetOptArg(pc);
			const char *p;

			for (p = cs; p != NULL; ) {
				const char *t, *c;

				t = strchr(p, ',');
				if (t == NULL) {
					c = talloc_strdup(options.controls, p);
					p = NULL;
				} else {
					c = talloc_strndup(options.controls, p, t-p);
			        	p = t + 1;
				}
//.........这里部分代码省略.........

/*
 * ut_start -- initialize unit test framework, indicate test started
 */
void
ut_start(const char *file, int line, const char *func,
    int argc, char * const argv[], const char *fmt, ...)
{
	va_list ap;
	int saveerrno = errno;
	char logname[MAXLOGNAME];
	char *logsuffix;

	va_start(ap, fmt);

	if (getenv("UNITTEST_NO_SIGHANDLERS") == NULL)
		ut_register_sighandlers();

	if (getenv("UNITTEST_QUIET") != NULL)
		Quiet++;

	Testname = getenv("UNITTEST_NAME");

	if ((logsuffix = getenv("UNITTEST_NUM")) == NULL)
		logsuffix = "";

	snprintf(logname, MAXLOGNAME, "out%s.log", logsuffix);
	if ((Outfp = fopen(logname, "w")) == NULL) {
		perror(logname);
		exit(1);
	}

	snprintf(logname, MAXLOGNAME, "err%s.log", logsuffix);
	if ((Errfp = fopen(logname, "w")) == NULL) {
		perror(logname);
		exit(1);
	}

	snprintf(logname, MAXLOGNAME, "trace%s.log", logsuffix);
	if ((Tracefp = fopen(logname, "w")) == NULL) {
		perror(logname);
		exit(1);
	}

	setlinebuf(Outfp);
	setlinebuf(Errfp);
	setlinebuf(Tracefp);
	setlinebuf(stdout);

	prefix(file, line, func, 0);
	vout(OF_LOUD|OF_NAME, "START", fmt, ap);

	out(OF_NONL, 0, "     args:");
	for (int i = 0; i < argc; i++)
		out(OF_NONL, " %s", argv[i]);
	out(0, NULL);

	va_end(ap);

	/* generate a uuid so the leaked fd gets recorded */
	uuid_t u;
	uuid_generate(u);

	record_open_files();

	long long sc = sysconf(_SC_PAGESIZE);
	if (sc < 0)
		abort();
	Ut_pagesize = (unsigned long)sc;

	errno = saveerrno;
}

//.........这里部分代码省略.........
		/*
		 *  The parent exits, so the child can run in the background.
		 */
		if (pid > 0) {
			exit(0);
		}
#ifdef HAVE_SETSID
		setsid();
#endif
	}
#endif

	/*
	 *  Ensure that we're using the CORRECT pid after forking,
	 *  NOT the one we started with.
	 */
	radius_pid = getpid();

	/*
	 *	If we're running as a daemon, close the default file
	 *	descriptors, AFTER forking.
	 */
	if (!debug_flag) {
		int devnull;

		devnull = open("/dev/null", O_RDWR);
		if (devnull < 0) {
			radlog(L_ERR, "Failed opening /dev/null: %s\n",
			       strerror(errno));
			exit(1);
		}
		dup2(devnull, STDIN_FILENO);
		if (mainconfig.radlog_dest == RADLOG_STDOUT) {
			setlinebuf(stdout);
			mainconfig.radlog_fd = STDOUT_FILENO;
		} else {
			dup2(devnull, STDOUT_FILENO);
		}
		if (mainconfig.radlog_dest == RADLOG_STDERR) {
			setlinebuf(stderr);
			mainconfig.radlog_fd = STDERR_FILENO;
		} else {
			dup2(devnull, STDERR_FILENO);
		}
		close(devnull);

	} else {
		setlinebuf(stdout); /* unbuffered output */
	}
	
	/*
	 *	Now we have logging check that the OpenSSL 
	 */

	/*
	 *	Initialize the event pool, including threads.
	 */
	radius_event_init(mainconfig.config, spawn_flag);

	/*
	 *	Now that we've set everything up, we can install the signal
	 *	handlers.  Before this, if we get any signal, we don't know
	 *	what to do, so we might as well do the default, and die.
	 */
#ifdef SIGPIPE
	signal(SIGPIPE, SIG_IGN);

int
main(int argc, char *argv[])
{
    int			c;
    int			sts;
    int			ctx;
    int			i;
    int			lflag = 0;	/* no label by default */
    int			nfile;
    int			n;
    char		*p;
    struct dirent	**namelist;
    __pmContext		*ctxp;
    char		*archpathname;	/* from the command line */
    char		*archdirname;	/* after dirname() */
    char		archname[MAXPATHLEN];	/* full pathname to base of archive name */

    while ((c = pmGetOptions(argc, argv, &opts)) != EOF) {
	switch (c) {
	case 'l':	/* display the archive label */
	    lflag = 1;
	    break;
	case 'v':	/* bump verbosity */
	    vflag++;
	    break;
	}
    }

    if (!opts.errors && opts.optind >= argc) {
	pmprintf("Error: no archive specified\n\n");
	opts.errors++;
    }

    if (opts.errors) {
	pmUsageMessage(&opts);
	exit(EXIT_FAILURE);
    }

    sep = __pmPathSeparator();
    setlinebuf(stderr);

    __pmAddOptArchive(&opts, argv[opts.optind]);
    opts.flags &= ~PM_OPTFLAG_DONE;
    __pmEndOptions(&opts);

    archpathname = argv[opts.optind];
    archbasename = strdup(basename(strdup(archpathname)));
    /*
     * treat foo, foo.index, foo.meta, foo.NNN as all equivalent
     * to "foo"
     */
    p = strrchr(archbasename, '.');
    if (p != NULL) {
	if (strcmp(p, ".index") == 0 || strcmp(p, ".meta") == 0)
	    *p = '\0';
	else {
	    char	*q = p;
	    q++;
	    if (isdigit(*q)) {
		/*
		 * foo.<digit> ... if archpathname does exist, then
		 * safe to strip digits, else leave as is for the
		 * case of, e.g. archive-20150415.041154 which is the
		 * pmmgr basename for an archive with a first volume
		 * named archive-20150415.041154.0
		 */
		if (access(archpathname, F_OK) == 0) {
		    q++;
		    while (*q && isdigit(*q))
			q++;
		    if (*q == '\0')
			*p = '\0';
		}
	    }
	}
    }
    archdirname = dirname(strdup(archpathname));
    if (vflag)
	fprintf(stderr, "Scanning for components of archive \"%s\"\n", archpathname);
    nfile = scandir(archdirname, &namelist, filter, NULL);
    if (nfile < 1) {
	fprintf(stderr, "%s: no PCP archive files match \"%s\"\n", pmProgname, archpathname);
	exit(EXIT_FAILURE);
    }

    /*
     * Pass 0 for data, metadata and index files ... check physical
     * archive record structure, then label record
     */
    sts = STS_OK;
    for (i = 0; i < nfile; i++) {
	char	path[MAXPATHLEN];
	if (strcmp(archdirname, ".") == 0) {
	    /* skip ./ prefix */
	    strncpy(path, namelist[i]->d_name, sizeof(path));
	}
	else {
	    snprintf(path, sizeof(path), "%s%c%s", archdirname, sep, namelist[i]->d_name);
	}
	if (pass0(path) == STS_FATAL)
//.........这里部分代码省略.........

/****************************************************************************
  main program
****************************************************************************/
 int main(int argc,char *argv[])
{
	TALLOC_CTX *frame = talloc_stackframe();
	struct user_auth_info local_auth_info;
	struct poptOption long_options[] = {
		POPT_AUTOHELP
		{ "broadcast", 'b', POPT_ARG_VAL, &use_bcast, True, "Use broadcast instead of using the master browser" },
		{ "domains", 'D', POPT_ARG_VAL, &level, LEV_WORKGROUP, "List only domains (workgroups) of tree" },
		{ "servers", 'S', POPT_ARG_VAL, &level, LEV_SERVER, "List domains(workgroups) and servers of tree" },
		POPT_COMMON_SAMBA
		POPT_COMMON_CREDENTIALS
		POPT_TABLEEND
	};
	poptContext pc;

	/* Initialise samba stuff */
	load_case_tables();

	setlinebuf(stdout);

	dbf = x_stderr;

	setup_logging(argv[0],True);

	pc = poptGetContext("smbtree", argc, (const char **)argv, long_options,
						POPT_CONTEXT_KEEP_FIRST);
	while(poptGetNextOpt(pc) != -1);
	poptFreeContext(pc);

	lp_load(get_dyn_CONFIGFILE(),True,False,False,True);
	load_interfaces();

	/* Parse command line args */

	if (get_cmdline_auth_info_use_machine_account() &&
	    !set_cmdline_auth_info_machine_account_creds()) {
		TALLOC_FREE(frame);
		return 1;
	}

	if (!get_cmdline_auth_info_got_pass()) {
		char *pass = getpass("Password: ");
		if (pass) {
			set_cmdline_auth_info_password(pass);
		}
	}

	/* Now do our stuff */

	if (!get_cmdline_auth_info_copy(&local_auth_info)) {
		return 1;
	}

        if (!print_tree(&local_auth_info)) {
		TALLOC_FREE(frame);
                return 1;
	}

	TALLOC_FREE(frame);
	return 0;
}

int main(int argc, char* argv[])
{
	setlinebuf(stdout);

#ifdef _WIN32
	// initialize winsock
	WSAData wsaData;
	int nCode;
	if ((nCode = WSAStartup(MAKEWORD(1, 1), &wsaData)) != 0) {
		scprintf( "WSAStartup() failed with error code %d.\n", nCode );
		return 1;
	}
#endif

	int udpPortNum = -1;
	int tcpPortNum = -1;
	std::string bindTo("0.0.0.0");

	WorldOptions options = kDefaultWorldOptions;

	for (int i=1; i<argc;) {
		if (argv[i][0] != '-' || argv[i][1] == 0 || strchr("utBaioczblndpmwZrCNSDIOMHvVRUhPL", argv[i][1]) == 0) {
			scprintf("ERROR: Invalid option %s\n", argv[i]);
			Usage();
		}
		int j = i;
		switch (argv[j][1]) {
			case 'u' :
				checkNumArgs(2);
				udpPortNum = atoi(argv[j+1]);
				break;
			case 't' :
				checkNumArgs(2);
				tcpPortNum = atoi(argv[j+1]);
				break;
			case 'B':
				checkNumArgs(2);
				bindTo = argv[j+1];
				break;
			case 'a' :
				checkNumArgs(2);
				options.mNumAudioBusChannels = atoi(argv[j+1]);
				break;
			case 'i' :
				checkNumArgs(2);
				options.mNumInputBusChannels = atoi(argv[j+1]);
				break;
			case 'o' :
				checkNumArgs(2);
				options.mNumOutputBusChannels = atoi(argv[j+1]);
				break;
			case 'c' :
				checkNumArgs(2);
				options.mNumControlBusChannels = atoi(argv[j+1]);
				break;
			case 'z' :
				checkNumArgs(2);
				options.mBufLength = NEXTPOWEROFTWO(atoi(argv[j+1]));
				break;
			case 'Z' :
				checkNumArgs(2);
				options.mPreferredHardwareBufferFrameSize = NEXTPOWEROFTWO(atoi(argv[j+1]));
				break;
			case 'b' :
				checkNumArgs(2);
				options.mNumBuffers = NEXTPOWEROFTWO(atoi(argv[j+1]));
				break;
			case 'l' :
				checkNumArgs(2);
				options.mMaxLogins = NEXTPOWEROFTWO(atoi(argv[j+1]));
				break;
			case 'n' :
				checkNumArgs(2);
				options.mMaxNodes = NEXTPOWEROFTWO(atoi(argv[j+1]));
				break;
			case 'd' :
				checkNumArgs(2);
				options.mMaxGraphDefs = NEXTPOWEROFTWO(atoi(argv[j+1]));
				break;
			case 'p' :
				checkNumArgs(2);
				options.mPassword = argv[j+1];
				break;
			case 'm' :
				checkNumArgs(2);
				options.mRealTimeMemorySize = atoi(argv[j+1]);
				break;
			case 'w' :
				checkNumArgs(2);
				options.mMaxWireBufs = atoi(argv[j+1]);
				break;
			case 'r' :
				checkNumArgs(2);
				options.mNumRGens = atoi(argv[j+1]);
				break;
			case 'S' :
				checkNumArgs(2);
				options.mPreferredSampleRate = (uint32)atof(argv[j+1]);
				break;
			case 'D' :
//.........这里部分代码省略.........

int main(int argc, char** argv)
{
  int optchar;
  pthread_t threadid;
  char semaphore_name[32];

  while ((optchar = getopt(argc, argv, "dmp")) != EOF)
  {
    switch (optchar)
    {
    case 'd':
      s_debug = 1;
      break;
    case 'm':
      s_do_mutual_exclusion = 1;
      break;
    case 'p':
      s_do_printf = 1;
      break;
    default:
      assert(0);
    }
  }

  /*
   * Use the ipcs and ipcrm commands to clean up named semaphores left by
   * aborted instances of this process.
   */
  snprintf(semaphore_name, sizeof(semaphore_name), "/drd-sem-open-test-%d",
	   getpid());
  s_sem = sem_open(semaphore_name, O_CREAT | O_EXCL, 0600, 1);
  if (s_sem == SEM_FAILED)
  {
    fprintf(stderr, "Failed to create a semaphore with name %s\n",
            semaphore_name);
    exit(1);
  }

  /*
   * Switch to line-buffered mode, such that timing information can be
   * obtained for each printf() call with strace.
   */
  setlinebuf(stdout);

  if (s_debug)
  {
    printf("&s_d1 = %p; &s_d2 = %p; &s_d3 = %p\n", &s_d1, &s_d2, &s_d3);
  }

  s_d1 = 1;
  s_d3 = 3;

  pthread_create(&threadid, 0, thread_func, 0);

  sleep(1); /* Wait until thread_func() finished. */

  {
    if (s_do_mutual_exclusion) sem_wait(s_sem);
    s_d3++;
    if (s_do_mutual_exclusion) sem_post(s_sem);
  }

  /* Wait until the thread finished. */
  pthread_join(threadid, 0);
  if (s_do_printf) printf("s_d2 = %g (should be 2)\n", s_d2);
  if (s_do_printf) printf("s_d3 = %g (should be 5)\n", s_d3);

  sem_close(s_sem);
  sem_unlink(semaphore_name);

  return 0;
}

//.........这里部分代码省略.........
             statedir, FILE_SEPARATOR);
    MakeParentDirectory(ebuff, force);

    if (stat(ebuff, &statbuf) == -1)
    {
        CreateEmptyFile(ebuff);
    }

    snprintf(ebuff, sizeof(ebuff), "%s%ccf_rootprocs",
             statedir, FILE_SEPARATOR);

    if (stat(ebuff, &statbuf) == -1)
    {
        CreateEmptyFile(ebuff);
    }

    snprintf(ebuff, sizeof(ebuff), "%s%ccf_otherprocs",
             statedir, FILE_SEPARATOR);

    if (stat(ebuff, &statbuf) == -1)
    {
        CreateEmptyFile(ebuff);
    }

    snprintf(ebuff, sizeof(ebuff), "%s%cprevious_state%c",
             statedir, FILE_SEPARATOR, FILE_SEPARATOR);
    MakeParentDirectory(ebuff, force);

    snprintf(ebuff, sizeof(ebuff), "%s%cdiff%c",
             statedir, FILE_SEPARATOR, FILE_SEPARATOR);
    MakeParentDirectory(ebuff, force);

    snprintf(ebuff, sizeof(ebuff), "%s%cuntracked%c",
             statedir, FILE_SEPARATOR, FILE_SEPARATOR);
    MakeParentDirectory(ebuff, force);

    snprintf(ebuff, sizeof(ebuff), "%s%cpromise_log%c",
            statedir, FILE_SEPARATOR, FILE_SEPARATOR);
    MakeParentDirectory(ebuff, force);

    OpenNetwork();
    CryptoInitialize();

    CheckWorkingDirectories(ctx);

    /* Initialize keys and networking. cf-key, doesn't need keys. In fact it
       must function properly even without them, so that it generates them! */
    if (config->agent_type != AGENT_TYPE_KEYGEN)
    {
        LoadSecretKeys();
        char *bootstrapped_policy_server = ReadPolicyServerFile(workdir);
        PolicyHubUpdateKeys(bootstrapped_policy_server);
        free(bootstrapped_policy_server);
    }

    size_t cwd_size = PATH_MAX;
    while (true)
    {
        char cwd[cwd_size];
        if (!getcwd(cwd, cwd_size))
        {
            if (errno == ERANGE)
            {
                cwd_size *= 2;
                continue;
            }
            else
            {
                Log(LOG_LEVEL_WARNING,
                    "Could not determine current directory (getcwd: %s)",
                    GetErrorStr());
                break;
            }
        }

        EvalContextSetLaunchDirectory(ctx, cwd);
        break;
    }

    if (!MINUSF)
    {
        GenericAgentConfigSetInputFile(config, GetInputDir(), "promises.cf");
    }

    setlinebuf(stdout);

    if (config->agent_specific.agent.bootstrap_policy_server)
    {
        snprintf(vbuff, CF_BUFSIZE, "%s%cfailsafe.cf", GetInputDir(), FILE_SEPARATOR);

        if (stat(vbuff, &statbuf) == -1)
        {
            GenericAgentConfigSetInputFile(config, GetInputDir(), "failsafe.cf");
        }
        else
        {
            GenericAgentConfigSetInputFile(config, GetInputDir(), vbuff);
        }
    }
}

static void
SalvageServer(void)
{
    int pid, ret;
    struct SalvageQueueNode * node;
    pthread_t tid;
    pthread_attr_t attrs;
    int slot;
    VolumePackageOptions opts;

    /* All entries to the log will be appended.  Useful if there are
     * multiple salvagers appending to the log.
     */

    CheckLogFile((char *)AFSDIR_SERVER_SALSRVLOG_FILEPATH);
#ifndef AFS_NT40_ENV
#ifdef AFS_LINUX20_ENV
    fcntl(fileno(logFile), F_SETFL, O_APPEND);	/* Isn't this redundant? */
#else
    fcntl(fileno(logFile), F_SETFL, FAPPEND);	/* Isn't this redundant? */
#endif
#endif
    setlinebuf(logFile);

    fprintf(logFile, "%s\n", cml_version_number);
    Log("Starting OpenAFS Online Salvage Server %s (%s)\n", SalvageVersion, commandLine);
    
    /* Get and hold a lock for the duration of the salvage to make sure
     * that no other salvage runs at the same time.  The routine
     * VInitVolumePackage2 (called below) makes sure that a file server or
     * other volume utilities don't interfere with the salvage.
     */
    
    /* even demand attach online salvager
     * still needs this because we don't want
     * a stand-alone salvager to conflict with
     * the salvager daemon */
    ObtainSharedSalvageLock();

    child_slot = (int *) malloc(Parallel * sizeof(int));
    assert(child_slot != NULL);
    memset(child_slot, 0, Parallel * sizeof(int));

    /* initialize things */
    VOptDefaults(salvageServer, &opts);
    if (VInitVolumePackage2(salvageServer, &opts)) {
	Log("Shutting down: errors encountered initializing volume package\n");
	Exit(1);
    }
    DInit(10);
    queue_Init(&pending_q);
    queue_Init(&log_cleanup_queue);
    assert(pthread_mutex_init(&worker_lock, NULL) == 0);
    assert(pthread_cond_init(&worker_cv, NULL) == 0);
    assert(pthread_cond_init(&log_cleanup_queue.queue_change_cv, NULL) == 0);
    assert(pthread_attr_init(&attrs) == 0);

    /* start up the reaper and log cleaner threads */
    assert(pthread_attr_setdetachstate(&attrs, PTHREAD_CREATE_DETACHED) == 0);
    assert(pthread_create(&tid, 
			  &attrs, 
			  &SalvageChildReaperThread,
			  NULL) == 0);
    assert(pthread_create(&tid, 
			  &attrs, 
			  &SalvageLogCleanupThread,
			  NULL) == 0);
    assert(pthread_create(&tid,
			  &attrs,
			  &SalvageLogScanningThread,
			  NULL) == 0);

    /* loop forever serving requests */
    while (1) {
	node = SALVSYNC_getWork();
	assert(node != NULL);

	Log("dispatching child to salvage volume %u...\n",
	    node->command.sop.parent);

	VOL_LOCK;
	/* find a slot */
	for (slot = 0; slot < Parallel; slot++) {
	  if (!child_slot[slot])
	    break;
	}
	assert (slot < Parallel);

    do_fork:
	pid = Fork();
	if (pid == 0) {
	    VOL_UNLOCK;
	    ret = DoSalvageVolume(node, slot);
	    Exit(ret);
	} else if (pid < 0) {
	    Log("failed to fork child worker process\n");
	    sleep(1);
	    goto do_fork;
	} else {
	    child_slot[slot] = pid;
//.........这里部分代码省略.........

//.........这里部分代码省略.........
		    break;

                case 'i':
		    g_params.bits.mode_socket = 1;
                    if (argv[argc][2] == '=') {
			server = argv[argc]+3;
			port = strchr(server, ':');
			if (port) {
			    *port++ = '\0';
			    xsocket_set_port(port);
			}
                        xsocket_set_server(server);
                    }
                    break;

                case 'v':
                    g_params.bits.mode_version = 1;
                    break;

                case 'd':
                    g_params.bits.mode_debug = 1;
                    break;
            }
        }
        argc--;
    }

    if (!g_params.bits.mode_quiet) {
        // Summarize parameter settings
        printf("xlisten Ver:%s\n", g_version);
        if (g_params.bits.mode_version)   xpacket_print_versions();
        printf("Using params: ");
        if (g_params.bits.display_help)   printf("[help] ");
        if (g_params.bits.display_baud)   printf("[baud=0x%04x] ", baudrate);
        if (g_params.bits.display_raw)    printf("[raw] ");
        if (g_params.bits.display_ascii)  printf("[ascii] ");
        if (g_params.bits.display_parsed) printf("[parsed] ");
        if (g_params.bits.display_cooked) printf("[cooked] ");
        if (g_params.bits.export_parsed)  printf("[export] ");
        if (g_params.bits.display_time)   printf("[timed] ");
        if (g_params.bits.export_cooked)  printf("[convert] ");
        if (g_params.bits.log_cooked)     printf("[logging] ");
        if (g_params.bits.mode_framing==1)printf("[framed] ");
        if (g_params.bits.mode_framing==2)printf("[unframed] ");
        if (g_params.bits.mode_header)    printf("[header=%i] ", 
						 xpacket_get_start());
        if (g_params.bits.mode_socket)    printf("[inet=%s:%u] ", 
						 xsocket_get_server(), 
						 xsocket_get_port());
        if (g_params.bits.mode_debug) {
            printf("[debug - serial dump!] \n");
            xserial_port_dump();
        }
        printf("\n");
    }

    if (g_params.bits.display_help) {
        printf(
            "\nUsage: xlisten <-?|r|p|c|x|l|d|v|q> <-l=table>"
	    "\n               <-s=device> <-b=baud> <-i=server:port>"
            "\n   -? = display help [help]"
            "\n   -r = raw display of tos packets [raw]"
            "\n   -a = ascii display of tos packets [ascii]"
            "\n   -p = parse packet into raw sensor readings [parsed]"
            "\n   -x = export readings in csv spreadsheet format [export]"
            "\n   -c = convert data to engineering units [cooked]"
            "\n   -l = log data to database or file [logged]"
            "\n   -d = debug serial port by dumping bytes [debug]"
            "\n   -b = set the baudrate [baud=#|mica2|mica2dot]"
            "\n   -s = set serial port device [device=com1]"
            "\n   -i = use serial forwarder input [inet=host:port]"
            "\n   -o = output (forward serial) to port [onet=port] -!TBA!-"
            "\n   -h = specify header size [header=offset]"
            "\n   -t = display time packet was received [timed]"
            "\n   -q = quiet mode (suppress headers)"
            "\n   -v = show version of all modules"
            "\n"
        );
        exit(0);
    }

    /* Default to displaying packets as raw, parsed, and cooked. */
    if (g_params.options.output == 0) {
        g_params.bits.display_raw = 1;
        g_params.bits.display_parsed = 1;
        g_params.bits.display_cooked = 1;
    }

    /* Stream initialization */

    // Set STDOUT and STDERR to be line buffered, so output is not delayed.
    setlinebuf(stdout);
    setlinebuf(stderr);

    if (g_params.bits.mode_socket) {
        g_istream = xsocket_port_open();
    } else {
        g_istream = xserial_port_open();
    }
}

int main(int argc, char **argv)
{
    int verbose = 0;
    int one_shot = 1;
    double rate;

    setlinebuf (stdout);
    setlinebuf (stderr);

    char *optstring = "hr:v";
    char c;
    struct option long_opts[] = { 
        { "help", no_argument, 0, 'h' },
        { "rate", required_argument, 0, 'r' },
        { "verbose", no_argument, 0, 'v' },
        { 0, 0, 0, 0 }
    };

    while( (c = getopt_long( argc, argv, optstring, long_opts, 0 )) >= 0 )
    {
        switch( c ) {
            case 'r':
                one_shot = 0;
                rate = strtof (optarg, NULL);
                printf ("Triggering at %f Hz\n", rate);
                break;
            case 'v':
                verbose = 1;
                break;
            case 'h':
            default:
                usage( argv[0] );
                return 1;
        };
    }

    dc1394camera_t ** cameras;
    unsigned int num_cameras = 0;
    dc1394error_t err = dc1394_find_cameras (&cameras, &num_cameras);
    if (err != DC1394_SUCCESS) {
        fprintf (stderr, "Error: %s\n", dc1394_error_strings[err]);
        return 1;
    }

    if (num_cameras == 0) {
        fprintf (stderr, "No cameras found\n");
        return 0;
    }

    dc1394_camera_set_broadcast (cameras[0], DC1394_ON);
    if (verbose)
        printf ("Triggering...\n");
    dc1394_software_trigger_set_power (cameras[0], DC1394_ON);

    if (one_shot)
        goto abort;

    signal (SIGINT, sig_handler);
    while (!do_quit) {
        usleep (1000000 / rate);
        dc1394_software_trigger_set_power (cameras[0], DC1394_ON);
        if (verbose) {
            printf (".");
            fflush (stdout);
        }
    }
    printf ("\n");

abort:
    for (int i = 0; i < num_cameras; i++)
        dc1394_free_camera (cameras[i]);
    free (cameras);
    return 0;
}