class AmazonApiRateLimiter { /** * Minimalna przerwa między zapytaniami (sekundy). */ const INTERVAL_SECONDS = 2; /** * Nazwa pliku blokady w katalogu log/. */ const LOCK_FILENAME = 'amazon_api_rate.lock'; /** * @var string Pełna ścieżka do pliku blokady */ private $lockFilePath; /** * @var bool Tryb debug */ private $debug; public function __construct($debug = false) { $this->debug = $debug; $this->lockFilePath = MT_ROOT . '/../log/' . self::LOCK_FILENAME; } /** * Czeka, jeśli ostatnie zapytanie było wykonane wcześniej niż INTERVAL_SECONDS temu. * * Musi być wywołane bezpośrednio przed każdym zapytaniem do Amazon API. * Blokuje inne procesy (flock LOCK_EX) na czas weryfikacji i ewentualnego czekania, * dzięki czemu kolejka zapytań jest respektowana globalnie. * * @return void */ public function wait() { $fh = fopen($this->lockFilePath, 'c+'); if ($fh === false) { $this->debug('[DEBUG AmazonApiRateLimiter] Nie można otworzyć pliku blokady: ' . $this->lockFilePath); return; } // Zablokuj - inne procesy czekają tutaj flock($fh, LOCK_EX); // Odczytaj czas ostatniego wywołania API rewind($fh); $content = fread($fh, 32); $lastCall = (float)$content; $now = microtime(true); $elapsed = $now - $lastCall; $waitTime = self::INTERVAL_SECONDS - $elapsed; if ($waitTime > 0) { $waitMicroseconds = (int)($waitTime * 1000000); $this->debug('[DEBUG AmazonApiRateLimiter] Rate limit: czekam ' . round($waitTime, 3) . 's przed zapytaniem do API.'); usleep($waitMicroseconds); } // Zapisz aktualny timestamp jako czas ostatniego wywołania ftruncate($fh, 0); rewind($fh); fwrite($fh, microtime(true)); fflush($fh); // Zwolnij blokadę - następny proces może wejść flock($fh, LOCK_UN); fclose($fh); } /** * Wypisuje komunikat diagnostyczny na stdout, jeśli tryb debug jest włączony. * * @param string $msg * @return void */ private function debug($msg) { if ($this->debug) { echo $msg . "\n"; } } } ?> Compare phones: ZTE Blade V30 :: GSMchoice.com ';

ZTE Blade V30

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ZTE Blade V30
Total value: 5,00
User opinions: 0
Type Touch
Dimensions 165.80 x 77.00 x 8.90 mm
Weight 193.00 g
Display size 6.67"
Display Color / IPS TFT
16M colors
60 Hz
1080 x 2400 px (6.67") 395 ppi
Display protection
No
Buy screen protector icon_info
Additional display No
Protection of the secondary display No
Standard battery Li-Ion 5000 mAhBuy powerbank icon_info
Quick battery charging Yes
Wireless battery charging No
Internal memory 128 GB
RAM memory 4 GB
Memory cards Yes
microSD, microSDHC, microSDXC
up to 512 GBBuy memory card icon_info
Operating system Android 11
Processor Unisoc Tiger T618 UMS512T
Processor clock 2000 MHz
GPU ARM Mali G52 MP2
Touchscreen Yes
SIM cards standard SingleSIM(nanoSIM)
Announced 3Q 2021
Other names -
GSM frequencies 850 900 1800 1900
UMTS 900 2100
LTE standard Yes
Standard 5G No
CDMA No
Standard TD-SCDMA No
UMA No
A D V E R T I S E M E N T
CAMERAS - BACK

CAMERAS - BACK

First camera Yes
Camera type Standard
Photo matrix 64 Mpx
Optical zoom No
Number of lenses 6
Flash Yes LED
Dual-colour LED flash No
Video formats H.264, MPEG4
Additional AF, EIS, f/1.8
Second camera Yes
Camera type Wide-angle
Photo matrix 8 Mpx
Optical zoom No
Field of view 120 °
Flash Yes LED
Dual-colour LED flash No
Video formats H.264, MPEG4
Additional FF, f/2.2
Third camera Yes
Camera type Macro
Photo matrix 5 Mpx
Optical zoom No
Focal length 30 mm
Flash Yes LED
Dual-colour LED flash No
Video formats H.264, MPEG4
Additional FF, f/2.4
Fourth camera Yes
Camera type Depth of field
Photo matrix 2 Mpx
Optical zoom No
Flash Yes LED
Dual-colour LED flash No
Video formats H.264, MPEG4
Additional FF, f/2.4
Fifth camera Yes
Camera type Portrait
Photo matrix 16 Mpx
Optical zoom No
Flash No
Dual-colour LED flash No
Video formats H.264, MPEG4
Additional FF
CAMERAS - FRONT

CAMERAS - FRONT

SENSORS

SENSORS

Accelerometer Yes
Proximity Yes
Light Yes
Magnetometer No
Gyroscope No
Barometer No
Altimeter No
Gravity Yes
Hall-effect No
Iris scanner No
Fingerprint scanner Yes
Thermometer No
Hygrometer No
Data transfer

Data transfer

xHTML Yes
WAP Yes
v2.0
HSCSD No
HSDPA Yes
21.10 Mbit/s
HSUPA Yes
5.76 Mbit/s
HSPA Yes
HSPA+ Yes
LTE DL Yes
LTE UP Yes
WIMAX+ No
GPRS Yes
EDGE Yes
Bluetooth Yes
A2DP Profile Yes
HDMI No
WiFi Yes
v802.11 a/b/g/n/ac
WiFi frequencies 2,4 GHz; 5 GHz
WiFi Direct Yes
WiFi Display No
DLNA No
Miracast No
WiFi hotspot Yes
IrDA No
USB Yes
v2.0 Type-C
GPS Yes
A-GPS Yes
NFC No
COMMUNICATION AND MESSAGING

COMMUNICATION AND MESSAGING

Call waiting Yes
Conferency Yes
Call forwarding Yes
Push To Talk No
Instant Messenger Yes
SMS Yes
EMS No
MMS Yes
Dictionary Yes
T9
Swype No
e-mail client Yes
POP3, IMAP4, SMTP
Hardware QWERTY keyboard No
RSS Reader Yes
Multimedia

Multimedia

MP3 Yes
Stereo speakers No
Audio Jack 3.5 mm
Sound formats AAC, AAC+, AMR, MID, WAV, eAAC+
Polyphony Yes
Video ringtone No
Ring composer No
Games No
Java Yes
ART
Videophone No
DVB-H television No
TV-Out No
PIM AND ADDITIONAL FUNCTIONS

PIM AND ADDITIONAL FUNCTIONS

Watch Yes
Stopwatch Yes
Alarm Yes
Calculator Yes
Currency converter No
Organizer Yes
Calendar Yes
Flight mode Yes
SyncML No
Data and fax Yes
Screensaver Yes
Themes Yes
Interchangeable covers No
Voice dial Yes
Speakerphone Yes
Vibrations Yes
ZTE Blade V30
Total value: 5,00
A D V E R T I S E M E N T

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