[Update] Implemented the whole mfrc522:loop script[Todo] Rename \lib\chip to \lib\global-state and create 'update' which updated the whole chips according to the STATE file
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@ -15,7 +15,7 @@
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$states = [];
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$last_user = null;
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$timeout = 1;
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$timeout = 0;
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@ -67,6 +67,136 @@
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/* PROCESS ACTIONS IF ACTION CAN BE PERFORMED BY USER (DEPENDING ON TIMEOUT/STATE)
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*
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* @user<array> Current user information
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*
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* @return success<bool> If success (action performed) | FALSE
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*
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*/
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function act($user){
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/* [1] Export global caches + variables
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=========================================================*/
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/* (1) Variables */
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global $timeout;
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/* (2) Caches */
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global $actions, $states, $state;
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/* (3) Log history file descriptor */
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global $f_accesslog;
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/* [2] Manage timeout
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=========================================================*/
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/* (1) If no action for this @timeout -> reset to 0 */
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if( !isset($actions[$timeout]) || !is_array($actions[$timeout]) )
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$timeout = 0;
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/* (2) fetch actions for the current @timeout */
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$actionlist = $actions[$timeout];
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/* [3] Manage permissions (action that can be performed)
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=========================================================*/
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/* (1) Will contain available @id_action-s granted for the user */
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$grantedFor = [];
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/* (2) Search an action the user can perform in the list */
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foreach($actionlist as $id_action=>$acttion){
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/* (3) If have permission -> add to list */
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if( in_array($id_action, $user['can']) )
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$grantedFor[] = $id_action;
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}
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/* (4) If no action found -> abort */
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if( count($grantedFor) == 0 )
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return false;
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/* [4] Manage action depending on the actual STATE
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=========================================================*/
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/* (1) Will contain the first available action depending on STATE */
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$toPerform = null;
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/* (2) For each granted action, check the STATE */
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foreach($grantedFor as $id_action){
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$failed = false;
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/* (3) Fetch action data */
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$action = $actionlist[$id_action];
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/* (4) Check if the state allows the action to be performed */
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for( $c = 0 ; $c < count($state) || $c < strlen($action['prev']) ; $c++ ){
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// {1} 'X' = any state -> so ignore //
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if( $action['prev'][$c] == 'X' )
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continue;
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// {2} Other state : if not equal -> set as FAILED //
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else if( $action['prev'][$c] != $state[$c] ){
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$failed = true;
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break;
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}
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}
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/* (5) If not failed -> save action in @toPerform */
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if( !$failed ){
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$toPerform = $id_action;
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break;
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}
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}
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/* (6) If no action cant be performed -> abort */
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if( is_null($toPerform) )
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return false;
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/* (7) Extract corresponding action */
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$action = $grantedFor[$toPerform];
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/* [5] Process the action on the STATE
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=========================================================*/
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/* (1) Update the state with the found action */
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for( $c = 0 ; $c < count($state) || $c < strlen($action['next']) ; $c++ ){
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// {1} If 'x' -> let the current state //
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if( $action['next'][$c] == 'X' )
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continue;
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// {2} If other state -> update it //
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else
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$state[$c] = $action['next'][$c];
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}
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/* (2) Update the state file */
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$written = @file_put_contents(STATE_CONF, implode('', $state));
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/* (3) Manage error */
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if( $written === false )
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slog('cannot update STATE file', 'mfrc522:loop');
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/* [6] Log action
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=========================================================*/
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/* (1) Log action to default log file */
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$f_accesslog->fwrite( json_encode([
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time(),
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$user['id'],
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$toPerform
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]).PHP_EOL );
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/* (2) Return status */
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return true;
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}
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@ -122,10 +252,9 @@
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$actions[$parsed[0]] = [];
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/* (4) Add entry to cache */
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$actions[$parsed[0]][] = [
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'id' => $parsed[1],
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$actions[$parsed[0]][$parsed[1]] = [
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'prev' => $parsed[2],
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'next' => $parsed[3],
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'next' => $parsed[3]
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];
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}
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@ -182,53 +311,89 @@
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/* [1] Load global variables
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=========================================================*/
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/* (1) Persistent variabes */
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global $last_user;
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global $timeout;
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/* (2) Caches */
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global $actions, $states, $state;
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/* [1] Wait for rfid card
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=========================================================*/
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while( ($code=syscall(SOURCE_DIR.'/lib/mfrc522/read')) === false );
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/* (1) Read card */
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$code = syscall(SOURCE_DIR.'/lib/mfrc522/read'));
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$code = strtoupper($code);
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slog("card '$code' read", 'mfrc522:read');
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$start_ts = microtime(true);
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/* [2] Check for user in auth list
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=========================================================*/
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/* (0) CHECK FOR USER INFO IN AUTH LIST
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---------------------------------------------------------*/
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$user = auth($code);
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/* (1) UNKNOWN USER -> reset count
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---------------------------------------------------------*/
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if( is_null($user) ){
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/* (2) If no card read -> reset @last_user / @timeout + abort */
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if( $code === false ){
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$last_user = null;
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$timeout = 1;
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/* (2) KNOWN USER -> Manage timeout
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---------------------------------------------------------*/
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}else{
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/* (1) If same as last -> increment @timeout */
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if( $last_user == $user['id'] )
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$timeout++;
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$timeout = 0;
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return false;
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}
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/* (3) If code -> format it */
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$code = strtoupper($code);
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slog("card '$code' read", 'mfrc522:read');
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/* [n] Wait for 0.5 s before reading again
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/* [2] Check for user in auth list
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=========================================================*/
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while( microtime(true)-$start_ts < 0.5 );
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/* (1) Check user for this code */
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$user = auth($code);
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/* (2) If not found -> reset @last_user / @timeout + abort */
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if( is_null($user) ){
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$last_user = null;
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$timeout = 0;
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return false;
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}
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/* [3] Manage @timeout incrementation + @last_user
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=========================================================*/
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/* (1) If same as last -> increment @timeout */
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if( $last_user == $user['id'] )
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$timeout++;
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/* (2) If different -> reset @timeout to 0 */
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else
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$timeout = 0;
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/* [4] Manage action
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=========================================================*/
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/* (1) Try to process action */
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$performed = act($user);
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/* (2) If performed -> update chip according to new state */
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if( $performed ){
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// {1} Try to update state //
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$updateds = syscall(SOURCE_DIR.'/lib/global-state/update');
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// {2} If not updated -> error //
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if( !$updateds )
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slog("Cannot update chips to '".implode('',$state)."'", 'mfrc522:loop');
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// {3} If updated -> success //
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else
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slog("Chips updated to ".implode('',$state)."'", 'mfrc522:loop');
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/* (3) If not performed -> log error */
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}else
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slog("Cannot perform action by '$code' at timeout $timeout", 'mfrc522:loop');
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/* (4) Store user for next loop */
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$last_user = $user['id'];
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}
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@ -236,9 +401,21 @@
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slog('daemon started (loop)', 'mfrc522:loop');
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while( true )
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while( true ){
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$start_ts = microtime(true);
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mfrc522_loop();
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while( microtime(true) - $start_ts < 0.5 );
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}
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?>
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