Changeset 823

Timestamp:

Feb 25, 2015, 9:19:59 AM (9 years ago)

Author:

chronos

Message:

• Fixed: PHP SIGSEG because class declaration was after first usage of it.

File:

• aowow/includes/DbSimple/Generic.php (modified) (2 diffs)

aowow/includes/DbSimple/Generic.php

@@ -165 +165 @@
 
 /**
+ * Support for error tracking.
+ * Can hold error messages, error queries and build proper stacktraces.
+ */
+class DbSimple_Generic_LastError
+{
+    var $error = null;
+    var $errmsg = null;
+    var $errorHandler = null;
+    var $ignoresInTraceRe = 'DbSimple_.*::.* | call_user_func.*';
+
+    /**
+     * abstract void _logQuery($query)
+     * Must be overriden in derived class.
+     */
+    function _logQuery($query)
+    {
+        die("Method must be defined in derived class. Abstract function called at ".__FILE__." line ".__LINE__);;
+    }
+
+    /**
+     * void _resetLastError()
+     * Reset the last error. Must be called on correct queries.
+     */
+    function _resetLastError()
+    {
+        $this->error = $this->errmsg = null;
+    }
+
+    /**
+     * void _setLastError(int $code, string $message, string $query)
+     * Fill $this->error property with error information. Error context
+     * (code initiated the query outside DbSimple) is assigned automatically.
+     */
+    function _setLastError($code, $msg, $query)
+    {
+        $context = "unknown";
+        if ($t = $this->findLibraryCaller()) {
+            $context = (isset($t['file'])? $t['file'] : '?') . ' line ' . (isset($t['line'])? $t['line'] : '?');
+        }
+        $this->error = array(
+            'code'    => $code,
+            'message' => rtrim($msg),
+            'query'   => $query,
+            'context' => $context,
+        );
+        $this->errmsg = rtrim($msg) . ($context? " at $context" : "");
+
+        $this->_logQuery("  -- error #".$code.": ".preg_replace('/(\r?\n)+/s', ' ', $this->errmsg));
+
+        if (is_callable($this->errorHandler)) {
+            call_user_func($this->errorHandler, $this->errmsg, $this->error);
+        }
+
+        return null;
+    }
+
+
+    /**
+     * callback setErrorHandler(callback $handler)
+     * Set new error handler called on database errors.
+     * Handler gets 3 arguments:
+     * - error message
+     * - full error context information (last query etc.)
+     */
+    function setErrorHandler($handler)
+    {
+        $prev = $this->errorHandler;
+        $this->errorHandler = $handler;
+        // In case of setting first error handler for already existed
+        // error - call the handler now (usual after connect()).
+        if (!$prev && $this->error) {
+            call_user_func($this->errorHandler, $this->errmsg, $this->error);
+        }
+        return $prev;
+    }
+
+    /**
+     * void addIgnoreInTrace($reName)
+     * Add regular expression matching ClassName::functionName or functionName.
+     * Matched stack frames will be ignored in stack traces passed to query logger. 
+     */    
+    function addIgnoreInTrace($name)
+    {
+        $this->ignoresInTraceRe .= "|" . $name;
+    }
+    
+    /**
+     * array of array findLibraryCaller()
+     * Return part of stacktrace before calling first library method.
+     * Used in debug purposes (query logging etc.).
+     */
+    function findLibraryCaller()
+    {
+        $caller = call_user_func(
+            array(&$this, 'debug_backtrace_smart'),
+            $this->ignoresInTraceRe,
+            true
+        );
+        return $caller;
+    }
+    
+    /**
+     * array debug_backtrace_smart($ignoresRe=null, $returnCaller=false)
+     * 
+     * Return stacktrace. Correctly work with call_user_func*
+     * (totally skip them correcting caller references).
+     * If $returnCaller is true, return only first matched caller,
+     * not all stacktrace.
+     * 
+     * @version 2.03
+     */
+    function debug_backtrace_smart($ignoresRe=null, $returnCaller=false)
+    {
+        if (!is_callable($tracer='debug_backtrace')) return array();
+        $trace = $tracer();
+        
+        if ($ignoresRe !== null) $ignoresRe = "/^(?>{$ignoresRe})$/six";
+        $smart = array();
+        $framesSeen = 0;
+        for ($i=0, $n=count($trace); $i<$n; $i++) {
+            $t = $trace[$i];
+            if (!$t) continue;
+                
+            // Next frame.
+            $next = isset($trace[$i+1])? $trace[$i+1] : null;
+            
+            // Dummy frame before call_user_func* frames.
+            if (!isset($t['file'])) {
+                $t['over_function'] = $trace[$i+1]['function'];
+                $t = $t + $trace[$i+1];
+                $trace[$i+1] = null; // skip call_user_func on next iteration
+            }
+            
+            // Skip myself frame.
+            if (++$framesSeen < 2) continue;
+
+            // 'class' and 'function' field of next frame define where
+            // this frame function situated. Skip frames for functions
+            // situated in ignored places.
+            if ($ignoresRe && $next) {
+                // Name of function "inside which" frame was generated.
+                $frameCaller = (isset($next['class'])? $next['class'].'::' : '') . (isset($next['function'])? $next['function'] : '');
+                if (preg_match($ignoresRe, $frameCaller)) continue;
+            }
+            
+            // On each iteration we consider ability to add PREVIOUS frame
+            // to $smart stack.
+            if ($returnCaller) return $t;
+            $smart[] = $t;
+        }
+        return $smart;
+    }
+    
+}
+
+/**
  * Base class for all databases.
  * Can create transactions and new BLOBs, parse DSNs.
@@ -1203 +1359 @@
 
 
-/**
- * Support for error tracking.
- * Can hold error messages, error queries and build proper stacktraces.
- */
-class DbSimple_Generic_LastError
-{
-    var $error = null;
-    var $errmsg = null;
-    var $errorHandler = null;
-    var $ignoresInTraceRe = 'DbSimple_.*::.* | call_user_func.*';
-
-    /**
-     * abstract void _logQuery($query)
-     * Must be overriden in derived class.
-     */
-    function _logQuery($query)
-    {
-        die("Method must be defined in derived class. Abstract function called at ".__FILE__." line ".__LINE__);;
-    }
-
-    /**
-     * void _resetLastError()
-     * Reset the last error. Must be called on correct queries.
-     */
-    function _resetLastError()
-    {
-        $this->error = $this->errmsg = null;
-    }
-
-    /**
-     * void _setLastError(int $code, string $message, string $query)
-     * Fill $this->error property with error information. Error context
-     * (code initiated the query outside DbSimple) is assigned automatically.
-     */
-    function _setLastError($code, $msg, $query)
-    {
-        $context = "unknown";
-        if ($t = $this->findLibraryCaller()) {
-            $context = (isset($t['file'])? $t['file'] : '?') . ' line ' . (isset($t['line'])? $t['line'] : '?');
-        }
-        $this->error = array(
-            'code'    => $code,
-            'message' => rtrim($msg),
-            'query'   => $query,
-            'context' => $context,
-        );
-        $this->errmsg = rtrim($msg) . ($context? " at $context" : "");
-
-        $this->_logQuery("  -- error #".$code.": ".preg_replace('/(\r?\n)+/s', ' ', $this->errmsg));
-
-        if (is_callable($this->errorHandler)) {
-            call_user_func($this->errorHandler, $this->errmsg, $this->error);
-        }
-
-        return null;
-    }
-
-
-    /**
-     * callback setErrorHandler(callback $handler)
-     * Set new error handler called on database errors.
-     * Handler gets 3 arguments:
-     * - error message
-     * - full error context information (last query etc.)
-     */
-    function setErrorHandler($handler)
-    {
-        $prev = $this->errorHandler;
-        $this->errorHandler = $handler;
-        // In case of setting first error handler for already existed
-        // error - call the handler now (usual after connect()).
-        if (!$prev && $this->error) {
-            call_user_func($this->errorHandler, $this->errmsg, $this->error);
-        }
-        return $prev;
-    }
-
-    /**
-     * void addIgnoreInTrace($reName)
-     * Add regular expression matching ClassName::functionName or functionName.
-     * Matched stack frames will be ignored in stack traces passed to query logger. 
-     */    
-    function addIgnoreInTrace($name)
-    {
-        $this->ignoresInTraceRe .= "|" . $name;
-    }
-    
-    /**
-     * array of array findLibraryCaller()
-     * Return part of stacktrace before calling first library method.
-     * Used in debug purposes (query logging etc.).
-     */
-    function findLibraryCaller()
-    {
-        $caller = call_user_func(
-            array(&$this, 'debug_backtrace_smart'),
-            $this->ignoresInTraceRe,
-            true
-        );
-        return $caller;
-    }
-    
-    /**
-     * array debug_backtrace_smart($ignoresRe=null, $returnCaller=false)
-     * 
-     * Return stacktrace. Correctly work with call_user_func*
-     * (totally skip them correcting caller references).
-     * If $returnCaller is true, return only first matched caller,
-     * not all stacktrace.
-     * 
-     * @version 2.03
-     */
-    function debug_backtrace_smart($ignoresRe=null, $returnCaller=false)
-    {
-        if (!is_callable($tracer='debug_backtrace')) return array();
-        $trace = $tracer();
-        
-        if ($ignoresRe !== null) $ignoresRe = "/^(?>{$ignoresRe})$/six";
-        $smart = array();
-        $framesSeen = 0;
-        for ($i=0, $n=count($trace); $i<$n; $i++) {
-            $t = $trace[$i];
-            if (!$t) continue;
-                
-            // Next frame.
-            $next = isset($trace[$i+1])? $trace[$i+1] : null;
-            
-            // Dummy frame before call_user_func* frames.
-            if (!isset($t['file'])) {
-                $t['over_function'] = $trace[$i+1]['function'];
-                $t = $t + $trace[$i+1];
-                $trace[$i+1] = null; // skip call_user_func on next iteration
-            }
-            
-            // Skip myself frame.
-            if (++$framesSeen < 2) continue;
-
-            // 'class' and 'function' field of next frame define where
-            // this frame function situated. Skip frames for functions
-            // situated in ignored places.
-            if ($ignoresRe && $next) {
-                // Name of function "inside which" frame was generated.
-                $frameCaller = (isset($next['class'])? $next['class'].'::' : '') . (isset($next['function'])? $next['function'] : '');
-                if (preg_match($ignoresRe, $frameCaller)) continue;
-            }
-            
-            // On each iteration we consider ability to add PREVIOUS frame
-            // to $smart stack.
-            if ($returnCaller) return $t;
-            $smart[] = $t;
-        }
-        return $smart;
-    }
-    
-}