Exemplo n.º 1
0
int main() {

    SystemInit();
    SER_Init() ;
#if !defined(NO_FILESYSTEM)
    init_card () ;                                    /* initializing SD card */
#endif

    init_time() ;


#if defined(DEBUG_CYASSL)
    printf("Turning ON Debug message\n") ;
    CyaSSL_Debugging_ON() ;
#endif

#ifdef   HAVE_KEIL_RTX
    os_sys_init (main_task) ;
#else
    main_task() ;
#endif

    return 0 ; /* There should be no return here */

}
Exemplo n.º 2
0
int main (int argc, char *argv[]) {
	int i, count;
	int *array = (int*) malloc (SIZE * sizeof(int));
	uint64_t start, end;

	//Initialization
	count = 0;
	srand(time(NULL));
	init_time();
	for (i = 0; i < SIZE; i++)
		array[i] = rand();

	//Measurement
	start = get_time();
	/*
	 * É possível, em um vetor ordenado, fazer a contagem 
	 * em tempo O(lg(n)) em vez de O(n) utilizando busca 
	 * binária. Embora isto diminua sensivelmente o tempo 
	 * este não é o intuito deste exercício.
	 *
	 */
	for (i = 0; i < SIZE; i++)
		if (array[i] < RAND_MAX / 2)
			count++;
	end = get_time();
	uint64_t exec_time = diff_time(start, end);

	printf("Time: %" PRIu64 " Count %d\n",  exec_time, count);
	free(array);
	return 0;
}
Exemplo n.º 3
0
int main() {
    len = strlen(prompt);
    init_sigaction();
    init_time();
    while(1);
    exit(0);
}
Exemplo n.º 4
0
int main() 
{
    static char *argv[] = 
          {   "client",   "-h", CYASSL_CALLEE_IP, "-p", CYASSL_CALLEE_PORT, 
                                   "-v",  CYASSL_SSL_VER,  CYASSL_HTTP_GET } ;
    static   func_args args  = 
          {  7 + CYASSL_HTTP_GET_COUNT, argv } ; 
        
    init_time() ;
    init_filesystem ();
    net_initialize() ;
    osThreadCreate (osThread (tcp_poll), NULL); 
    osDelay(50000) ;  /* wait for DHCP */
    #if defined(DEBUG_CYASSL)
         printf("Turning ON Debug message\n") ;
         CyaSSL_Debugging_ON() ;
    #endif
        
    if(args.argc == 7)
        printf("Simple SSL/TLS, ") ;
    else
        printf("HTTP GET, ") ;

    printf("Callee IP: %s, Port: %s, Version:%s\n", argv[2], argv[4], argv[6]) ; 

    while(1) {
          client_test(&args) ;
          printf("Enter any key to iterate.\n") ;
          getchar() ;
    }
}
Exemplo n.º 5
0
Arquivo: main.c Projeto: kelu27/42
void	init_data(t_shared shared)
{
	int			k;
	int			i;
	t_data		data[7];
	pthread_t	philosophe[7];

	i = 0;
	while (i < 7)
	{
		data[i].i = i;
		data[i].shared = &shared;
		data[i].life = MAX_LIFE;
		data[i].etat = 0;
		data[i].prior = 0;
		data[i].shared->pos = 7;
		if ((k = pthread_create(&philosophe[i], NULL, thread_1, &data[i])) != 0)
		{
			ft_putstr("Thread creation error \n");
			exit(1);
		}
		i++;
	}
	init_time(data);
	join_thread(philosophe);
}
Exemplo n.º 6
0
void SetPollingTimer()
{
#ifndef WIN32
    init_sigaction(); 
    init_time(); 
#endif    
}
Exemplo n.º 7
0
int main() 
{
    void * arg = NULL ;

    init_time() ;
    init_filesystem ();
    printf("=== Start: Crypt Benchmark ===\n") ;
        benchmark_test(arg) ;
    printf("=== End: Crypt Benchmark  ===\n") ;   
    
}
Exemplo n.º 8
0
Arquivo: main.c Projeto: Bth8/Dionysus
void kmain(uint32_t magic, multiboot_info_t *mboot, uintptr_t ebp) {
	monitor_clear();

	printf("Booting Dionysus!\n");

	ASSERT(magic == MULTIBOOT_BOOTLOADER_MAGIC && "Not booted with multiboot.");
	ASSERT(mboot->flags & MULTIBOOT_INFO_MEMORY && "No memory info.");
	ASSERT(mboot->flags & MULTIBOOT_INFO_MEM_MAP && "No memory map.");

	printf("Initializing GDT\n");
	init_gdt();

	printf("Initializing IDT\n");
	init_idt();

	// Check for modules
	if (mboot->flags & MULTIBOOT_INFO_MODS && mboot->mods_count) {
		multiboot_module_t *mods = (multiboot_module_t *)mboot->mods_addr;
		placement_address = mods[mboot->mods_count - 1].mod_end + KERNEL_BASE;
	}

	printf("Setting up paging\n");
	init_paging(mboot->mem_lower + mboot->mem_upper, mboot->mmap_addr,
		mboot->mmap_length);

	printf("Initializing timers\n");
	init_time();
	init_timer();

	printf("Starting task scheduling\n");
	init_tasking(ebp);
	init_syscalls();

	printf("Initializing vfs\n");
	init_vfs();

	printf("Initializing driver subsystem\n");
	init_blockdev();

	init_chardev();
	init_term();

	printf("Enumerating PCI bus(ses)\n");
	init_pci();
	dump_pci();

	init_devfs();
	ASSERT(mount(NULL, "/dev", "devfs", 0) == 0);

	init_ide();

	halt();
}
Exemplo n.º 9
0
/*
 * INITIAL C ENTRY POINT.
 */
void _minios_start_kernel(start_info_t *si)
{

    bmk_printf_init(minios_putc, NULL);
    bmk_core_init(STACK_SIZE_PAGE_ORDER, PAGE_SHIFT);

    arch_init(si);
    trap_init();
    bmk_sched_init();

    /* print out some useful information  */
    minios_printk("  start_info: %p(VA)\n", si);
    minios_printk("    nr_pages: 0x%lx\n", si->nr_pages);
    minios_printk("  shared_inf: 0x%08lx(MA)\n", si->shared_info);
    minios_printk("     pt_base: %p(VA)\n", (void *)si->pt_base); 
    minios_printk("nr_pt_frames: 0x%lx\n", si->nr_pt_frames);
    minios_printk("    mfn_list: %p(VA)\n", (void *)si->mfn_list); 
    minios_printk("   mod_start: 0x%lx(VA)\n", si->mod_start);
    minios_printk("     mod_len: %lu\n", si->mod_len); 
    minios_printk("       flags: 0x%x\n", (unsigned int)si->flags);
    minios_printk("    cmd_line: %s\n",  
           si->cmd_line ? (const char *)si->cmd_line : "NULL");

    /* Set up events. */
    init_events();
    
    /* ENABLE EVENT DELIVERY. This is disabled at start of day. */
    __sti();

    arch_print_info();

    setup_xen_features();

    /* Init memory management. */
    init_mm();

    /* Init time and timers. */
    init_time();

    /* Init the console driver. */
    init_console();

    /* Init grant tables */
    init_gnttab();
 
    /* Init XenBus */
    init_xenbus();

    /* Init scheduler. */
    bmk_sched_startmain(_app_main, &start_info);
    bmk_platform_halt("unreachable");
}
Exemplo n.º 10
0
int main (int argc, char *argv[]) {
	int i, count;
	int *array = (int*) malloc (SIZE * sizeof(int));
	uint64_t start, end;
    int events[3] = { PAPI_L1_DCM, PAPI_L2_DCM, PAPI_L3_DCM };
    long long misses[3];
    int papilevels = 3;

    if (PAPI_library_init(PAPI_VER_CURRENT) != PAPI_VER_CURRENT) {
        exit(1);
    }

	//Initialization
	count = 0;
	srand(time(NULL));
	init_time();
	for (i = 0; i < SIZE; i++)
		array[i] = rand();

	
	// Uncomment this line to 
	qsort(array, SIZE, sizeof (int), compare_ints);

	//Measurement
    while (PAPI_start_counters(events, papilevels) != PAPI_OK) {
        papilevels--;
    }
	start = get_time();
	/*
	 * É possível, em um vetor ordenado, fazer a contagem 
	 * em tempo O(lg(n)) em vez de O(n) utilizando busca 
	 * binária. Embora isto diminua sensivelmente o tempo 
	 * este não é o intuito deste exercício.
	 *
	 */
	for (i = 0; i < SIZE; i++)
		if (array[i] < RAND_MAX / 2)
			count++;
	end = get_time();
	uint64_t exec_time = diff_time(start, end);
    if (PAPI_read_counters(misses, papilevels) != PAPI_OK) {
        fprintf(stderr, "Erro em PAPI_read_counters\n");
        exit(1);
    }

	printf("Time: %" PRIu64 " Count %d\n",  exec_time, count);
    for (i = 0; i < papilevels; i++) {
        printf("Cache misses (L%d): %lld\n", i+1, misses[i]);
    }
	free(array);
	return 0;
}
Exemplo n.º 11
0
CAMLprim value
stub_hypervisor_suspend(value unit)
{
  CAMLparam0();
  int cancelled;

  printk("WARNING: stub_hypervisor_suspend not yet implemented\n");
  cancelled = 1;
#if 0
  /* Turn the store and console mfns to pfns - required because xc_domain_restore uses these values */
  start_info.store_mfn = mfn_to_pfn(start_info.store_mfn);
  start_info.console.domU.mfn = mfn_to_pfn(start_info.console.domU.mfn);

  /* canonicalize_pagetables can't cope with pagetable entries that are outside of the guest's mfns,
     so we must unmap anything outside of our space */
  unmap_shared_info();

  /* Actually do the suspend. When this function returns 0, we've been resumed */
  cancelled = HYPERVISOR_suspend(virt_to_mfn(&start_info));

  if(cancelled) {
    start_info.store_mfn = pfn_to_mfn(start_info.store_mfn);
    start_info.console.domU.mfn = pfn_to_mfn(start_info.console.domU.mfn);
  }

  /* Reinitialise several things */
  trap_init();
  init_events();

  /* ENABLE EVENT DELIVERY. This is disabled at start of day. */
  local_irq_enable();

  setup_xen_features();
  HYPERVISOR_shared_info = map_shared_info(start_info.shared_info);

  /* Set up event and failsafe callback addresses. */
  HYPERVISOR_set_callbacks(
						   (unsigned long)hypervisor_callback,
						   (unsigned long)failsafe_callback, 0);

  init_time();
  arch_rebuild_p2m();

  unmask_evtchn(start_info.console.domU.evtchn);
  unmask_evtchn(start_info.store_evtchn);
#endif
  CAMLreturn(Val_int(cancelled));
}
Exemplo n.º 12
0
bool IThread::start()
{
    if(is_running() == false)
    {
        return true;
    }

    LogDebug("thread %s start", _name.c_str());

    init_time();

    _over = false;
    _thread = std::thread(std::bind(&IThread::thread_func, this));

    return true;
}
Exemplo n.º 13
0
int main(int argc, const char *argv[])
{
#define SLEEP_TIME 1

	len = strlen(msg);

	init_sigaction();
	init_time();

	while (1) {
		sleep(SLEEP_TIME);
		printf("[%ds have elapsed or a signal arrives which is not ignored.]\n", SLEEP_TIME);
	}

	exit(0);
}
Exemplo n.º 14
0
int main() 
{
    void *args = NULL ;
    init_time() ;
    init_filesystem ();
    net_initialize() ;
    osThreadCreate (osThread (tcp_poll), NULL); 
    osDelay(30000) ;  /* wait for DHCP */
    #if defined(DEBUG_CYASSL)
         printf("Turning ON Debug message\n") ;
         CyaSSL_Debugging_ON() ;
    #endif

    echoclient_test(args) ;

}
Exemplo n.º 15
0
int main(int argc, char **argv)
{
    bool recovering = false;
    int port, control = 0;

    init_signals();

    /** Get the port number. */
    port = 7778;
    if (argc > 1) {
	if (!is_number(argv[1])) {
	    fprintf(stderr, "Usage: %s [port #]\n", argv[0]);
	    return 0;
	} else if ((port = atoi(argv[1])) <= 1024) {
	    fprintf(stderr, "Port number must be above 1024.\n");
	    return 0;
	}

	/* Are we recovering from a copyover? */
	if ((argv[2] != NULL) && (argv[2][0] != '\0')) {
	    recovering = true;
	    control = atoi(argv[3]);
	} else {
	    recovering = false;
	}
    }

    init_time(&globalSystemState);
    boot_db();

    /** Run the game. */
    if (!recovering) {
	control = remote_listen(port);
    }

    log_string("BT is ready to rock on port %d.", port);

    if (recovering) {
	copyover_recover();
    }

    game_loop(port, control);
    remote_deafen(control);

    log_string("Normal termination of game.");
    return 0;
}
Exemplo n.º 16
0
void start_kernel(void)
{
  printk("Mirage: start_kernel\n");

  /* Set up events. */
  init_events();

  /* Enable event delivery. This is disabled at start of day. */
  local_irq_enable();

  setup_xen_features();

  /* Init memory management.
   * Needed for malloc. */
  init_mm();

  /* Init time and timers. Needed for block_domain. */
  init_time();

  /* Init the console driver.
   * We probably do need this if we want printk to send notifications correctly. */
  init_console();

  /* Init grant tables. */
  init_gnttab();

#if 1
    /* Call our main function directly, without using Mini-OS threads. */
  app_main_thread(NULL);
#else
  /* Init scheduler. */
  /* Needed if you want to use create_thread, but we can get away without it. */
  init_sched();

  /* Init XenBus */
  /* Using Mini-OS's XenBus support requires threads. */
  init_xenbus();

  /* Respond to "xl shutdown". Requires XenBus. */
  create_thread("shutdown", shutdown_thread, NULL);

  create_thread("ocaml", app_main_thread, NULL);

  /* Everything initialised, start idle thread */
  run_idle_thread();
#endif
}
Exemplo n.º 17
0
int main(int argc, char ** argv)
{
	init_signal_handler();
	atc_init();
	init_UI();
	init_time();
	create_plane();
	state.airports_num = get_airports(state.airports);
	while(1){
		update_state();
		draw_UI();
		input(wgetch(ui.cmd_log));
	}
	atc_deinit();
	dispose_UI();
    return 0;
}
Exemplo n.º 18
0
int main(int argc, char* argv[]){
    if(argc < 2){
        fprintf(stdout, "%s Version %d.%d\n",argv[0],
                Tutorial_VERSION_MAJOR,
                Tutorial_VERSION_MINOR);
        fprintf(stdout, "Usage: %s number\n", argv[0]);
        return 1;
    }
    inputValue = atof(argv[1]);

    
    init_sigaction();
    init_time();
    while(true) sleep(1);
    return 0;
    
}
Exemplo n.º 19
0
	void init_builtin_commands() {
		LOG_D("command/init") << "Populating command map";
		init_app();
		init_audio();
		init_automation();
		init_edit();
		init_grid();
		init_help();
		init_keyframe();
		init_recent();
		init_subtitle();
		init_time();
		init_timecode();
		init_tool();
		init_video();
		init_visual_tools();
	}
Exemplo n.º 20
0
static void init_env(void) {
	SCM smob;
	char *ver;
	SOURCE_HANDLE *handle;
	init_log();
	init_alsa_module();
	ver = scm_to_locale_string(scm_version());
	log_msg("Guile version %s\n", ver);
	free(ver);
	init_messaging(msg_port);
	init_time();
	init_json();
	init_scheduler();
	init_audiofile();
	if (use_jack) init_jackport();
	init_feeds();
	init_recorder();
	init_stream();
	init_source_mod();
	init_ladspa();
	init_unitgen();
	fader = (SOURCE_OBJ *)my_malloc(sizeof(SOURCE_OBJ), "main fader");
	handle = (SOURCE_HANDLE *)my_gc_malloc(sizeof(SOURCE_HANDLE), "mains",
				"mains");
	handle->body = (void *)fader;
	handle->src = fader;
	init_source(fader);
	mains_tag = scm_make_smob_type("mains", sizeof(SOURCE_OBJ));
	SCM_NEWSMOB(smob, mains_tag, handle);
	scm_c_define("mains", smob);
	if (use_jack) {
		scm_c_define("jack-client-name",
			scm_from_locale_string(client_name));
		scm_c_define_gsubr("patch-out", 2, 0, 0, patch_out);
		scm_c_define_gsubr("unpatch-out", 2, 0, 0, unpatch_out);
		}
	scm_c_define_gsubr("quit", 0, 0, 0, qmx_quit);
	scm_c_define_gsubr("db", 1, 0, 0, db20);
	scm_c_define_gsubr("period-duty-cycle", 0, 0, 0, get_duty_cycle);
	scm_permanent_object(console_display =
			scm_c_eval_string(console_display_src));
	scm_permanent_object(catch_display =
			scm_c_eval_string(catch_display_src));
	return;
	}
Exemplo n.º 21
0
/*
=================
engine_start
=================
*/
erbool engine_start (void)
{
    init_time();
    sys_get_time();

    INIT(cvar);
    INIT(cmd);
    INIT(cmdbuf);

    cmd_register("quit", NULL, &quit_f, 0);
    cmd_register("echo", NULL, &echo_f, 0);

    INIT(fs);
    INIT(keyboard);

    cmdbuf_add("exec config.cfg\n", CMD_SRC_ENGINE);
    cmdbuf_frame();

    INIT(mouse);
    INIT(image);
    INIT(video);
    INIT(gl);
    INIT(r);
    INIT(snd);
    INIT(g);

    cmdbuf_add("exec autoexec.cfg\n", CMD_SRC_ENGINE);
    cmdbuf_frame();

    /*
      put sys args into cmdbuf (which begin with '+')
      once again (after all cmds like 'map' were registered)
    */
    sys_arg_to_cmdbuf('+');
    cmdbuf_frame();

    return true;

error:

    engine_stop();

    return false;
}
Exemplo n.º 22
0
void start_kernel(void)
{
    /* Set up events. */
    init_events();

    /* ENABLE EVENT DELIVERY. This is disabled at start of day. */
    local_irq_enable();

    setup_xen_features();

    /* Init memory management. */
    init_mm();

    /* Init GDT */
    init_gdt();

    /* Init time and timers. */
    init_time();

    /* Init the console driver. */
    init_console();

    /* Init grant tables */
    init_gnttab();
    
    /* Init scheduler. */
    init_sched();
 
    /* Init XenBus */
    init_xenbus();

    /* Init futexes */
    init_futex();

#ifdef CONFIG_XENBUS
    create_thread("shutdown", shutdown_thread, NULL);
#endif

    /* Call (possibly overridden) app_main() */
    app_main(&start_info);

    /* Everything initialised, start idle thread */
    run_idle_thread();
}
Exemplo n.º 23
0
void				server(int sock, int gfxsock, t_server *server)
{
	int				actual;

	actual = 0;
	init_server(server, gfxsock, sock);
	while (1)
	{
		init_time(server, &actual);
		regen_food(server);
		do_cmd(server);
		init_eggs(server);
		init_fds(server, actual);
		if (server_select(server, &actual))
			continue ;
	}
	clear_clients(server->clients, actual);
	close(server->sock);
}
Exemplo n.º 24
0
/*
 * INITIAL C ENTRY POINT.
 */
void start_kernel(start_info_t *si)
{
    static char hello[] = "Bootstrapping...\n";

    (void)HYPERVISOR_console_io(CONSOLEIO_write, strlen(hello), hello);

    arch_init(si);

    trap_init();

    /* print out some useful information  */
    printk("Mirage OS!\n");
    printk("  start_info: %p(VA)\n", si);
    printk("    nr_pages: 0x%lx\n", si->nr_pages);
    printk("  shared_inf: 0x%08lx(MA)\n", si->shared_info);
    printk("     pt_base: %p(VA)\n", (void *)si->pt_base); 
    printk("nr_pt_frames: 0x%lx\n", si->nr_pt_frames);
    printk("    mfn_list: %p(VA)\n", (void *)si->mfn_list); 
    printk("   mod_start: 0x%lx(VA)\n", si->mod_start);
    printk("     mod_len: %lu\n", si->mod_len); 
    printk("       flags: 0x%x\n", (unsigned int)si->flags);
    printk("    cmd_line: %s\n",  
           si->cmd_line ? (const char *)si->cmd_line : "NULL");

    /* Set up events. */
    init_events();
    
    /* ENABLE EVENT DELIVERY. This is disabled at start of day. */
    __sti();

    arch_print_info();

    setup_xen_features();

    /* Init memory management. */
    init_mm();

    /* Init time and timers. */
    init_time();

    /* Call (possibly overridden) app_main() */
    app_main(&start_info);
}
Exemplo n.º 25
0
//void Option_Trade::init_characteristics()
//{
//	this->characteristics.length_of_option_contract=
//		this->objects_needed.assumptions->length_of_option_contract;
//	this->characteristics.sell_at_time_to_expiry=
//		this->objects_needed.assumptions->sell_at_time_to_expiry;
//	//this->characteristics.shock_size=
//	//	this->objects_needed.assumptions->shock_size;
//}
void Option_Trade::init_tab_asset_purchase_struct(int i)
{
	/*for(int i=0;i<this->objects_needed.assumptions->model_period;++i)
	{*/
		init_time(i);
				
		init_ex_gamma(i);
		init_gamma_put(i);
		init_gamma_liability(i);
		init_net_gamma(i);
		init_hedging(i);
//		init_req_net_gamma(i);
//		init_req_gamma_liability(i);
		init_new_net_gamma(i);
//		init_tab(i);
		init_short_existing_positions(i);
		init_contracts(i);
	/*}*/
}
Exemplo n.º 26
0
int main(int argc, char *argv[])
{

	signal(SIGALRM, sig_alarm);

	if ((argc < 2) || (argc > 2 && argc < 5) || (argc > 5)) {
		fprintf(stderr, "Error args!\n");
		print_usage();
		return -1;
	}

	strcpy(root_dir, argv[1]);
	if (root_dir[strlen(root_dir)-1] == '/') {
		root_dir[strlen(root_dir)-1] = '\0';	
	}
	if (argc == 5) {
		file_size = atol(argv[2])*1024*1024;
		thread_n = atoi(argv[3]);
		time_s = atoi(argv[4]);
	}
	if ((n = parse_args()) <= 0) {
		openlog("fs_write", LOG_CONS|LOG_PID, 0);
		syslog(LOG_USER|LOG_ERR, "parse_args error!\n");
		print_usage();
		return -1;
	}
	strcpy(_dirname, root_dir);
	strcat(_dirname, "/");
	strcat(_dirname, dirs_name[now]);
	if (init_time(time_s) < 0) {
		openlog("fs_write", LOG_CONS|LOG_PID, 0);
		syslog(LOG_USER|LOG_ERR, "init_time error!\n");
		return -1;
	}

	if (w_thread() < 0) {
		return -1;
	}
	if (dfile() < 0) {
		return -1;
	}
}
Exemplo n.º 27
0
int main(int argc, char **argv)
{
    int i;
    qthread_t t;

    signal(SIGINT, handler);
    init_time();
    nforks = 4;

    qthread_mutex_init(&m, NULL);
    for (i = 0; i < nforks; i++)
        qthread_cond_init(&C[i], NULL);

    for (i = 0; i < nforks; i++) 
        qthread_create(&t, NULL, philosopher_thread, (void*)i);

    wait_until_done();

    return 0;
}
Exemplo n.º 28
0
FFGLStatic::FFGLStatic()
:CFreeFrameGLPlugin(),
 m_initResources(1)
{
	// Input properties
	SetMinInputs(1);
	SetMaxInputs(1);
	SetTimeSupported(true);

	init_time(&t0);
#ifdef _WIN32
	srand(GetTickCount());
#else
	srand(time(NULL));
#endif

	// parameters:
	SetParamInfo(FFPARAM_Mode, "Mode", FF_TYPE_STANDARD, 0.5f);	
	m_mode = 0.5f;
}
Exemplo n.º 29
0
int world_main_loop(int argc, char **argv, world_t *w){
	init_time();
	set_fps(90);
	world_set(w);
	/*printf("coucou2\n");	*/
	glutInit(&argc,argv);
	glutInitDisplayMode(GLUT_DEPTH|GLUT_DOUBLE|GLUT_RGB);
	glEnable(GL_DEPTH_TEST);
	glutInitWindowPosition(250,250);
	glutInitWindowSize(600,400);
	glutCreateWindow("BASTOS 85");
	draw_init();
	glutDisplayFunc(do_world);
	glutIdleFunc(do_world);
	glutReshapeFunc(draw_reshape);
	/*glutIgnoreKeyRepeat(1);*/
	glutKeyboardFunc(keyboard_down_func);
	glutKeyboardUpFunc(keyboard_up_func);
	glutMainLoop();
	return 0;
}
Exemplo n.º 30
0
std::string Caffe::time_from_init() {
  std::ostringstream os;
  os.unsetf(std::ios_base::floatfield);
  os.precision(4);
  double span = std::difftime(std::time(NULL), init_time());
  const double mn = 60.;
  const double hr = 3600.;
  if (span < mn) {
    os << span << "s";
  } else if (span < hr) {
    int m = static_cast<int>(span / mn);
    double s = span - m * mn;
    os << m << "m " << s << "s";
  } else {
    int h = static_cast<int>(span / hr);
    int m = static_cast<int>((span - h * hr) / mn);
    double s = span - h * hr - m * mn;
    os << h << "h " << m << "m " << s << "s";
  }
  return os.str();
}