$this->debugBackTrace(sprintf('Tried to set a missing field. name=%s, value[%s]=%s',
$name,
gettype($value),
- $value
+ print_r($value, TRUE)
));
}
$this->headerSize = $headerSize;
}
+ /**
+ * Getter for header array
+ *
+ * @return $totalEntries Size of file header
+ */
+ protected final function getHeade () {
+ // Get it
+ return $this->header;
+ }
+
+ /**
+ * Setter for header
+ *
+ * @param $header Array for a file header
+ * @return void
+ */
+ protected final function setHeader (array $header) {
+ // Set it
+ $this->header = $header;
+ }
+
/**
* Getter for seek position
*
//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput(sprintf('[%s:%d:] EXIT!', __METHOD__, __LINE__));
}
- /**
- * Reads the file header
- *
- * @return void
- */
- protected function readFileHeader () {
- //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput(sprintf('[%s:%d:] CALLED!', __METHOD__, __LINE__));
-
- // First rewind to beginning as the header sits at the beginning ...
- $this->getIteratorInstance()->rewind();
-
- // Then read it (see constructor for calculation)
- $data = $this->getIteratorInstance()->read($this->getHeaderSize());
- //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput(sprintf('[%s:%d:] Read %d bytes (%d wanted).', __METHOD__, __LINE__, strlen($data), $this->getHeaderSize()));
-
- // Have all requested bytes been read?
- assert(strlen($data) == $this->getHeaderSize());
- //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput(sprintf('[%s:%d:] Passed assert().', __METHOD__, __LINE__));
-
- // Last character must be the separator
- //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput(sprintf('[%s:%d:] data(-1)=%s', __METHOD__, __LINE__, dechex(ord(substr($data, -1, 1)))));
- assert(substr($data, -1, 1) == chr(self::SEPARATOR_HEADER_ENTRIES));
- //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput(sprintf('[%s:%d:] Passed assert().', __METHOD__, __LINE__));
-
- // Okay, then remove it
- $data = substr($data, 0, -1);
-
- // And update seek position
- $this->updateSeekPosition();
-
- /*
- * Now split it:
- *
- * 0 => Magic
- * 1 => Total entries
- * 2 => Current seek position
- */
- $this->header = explode(chr(self::SEPARATOR_HEADER_DATA), $data);
-
- // Check if the array has only 3 elements
- //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput(sprintf('[%s:%d:] header(%d)=%s', __METHOD__, __LINE__, count($this->header), print_r($this->header, TRUE)));
- assert(count($this->header) == 3);
- //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput(sprintf('[%s:%d:] Passed assert().', __METHOD__, __LINE__));
-
- // Check magic
- assert($this->header[0] == self::STACK_MAGIC);
- //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput(sprintf('[%s:%d:] Passed assert().', __METHOD__, __LINE__));
-
- // Check length of count and seek position
- assert(strlen($this->header[1]) == self::LENGTH_COUNT);
- //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput(sprintf('[%s:%d:] Passed assert().', __METHOD__, __LINE__));
- assert(strlen($this->header[2]) == self::LENGTH_POSITION);
- //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput(sprintf('[%s:%d:] Passed assert().', __METHOD__, __LINE__));
-
- // Decode count and seek position
- $this->header[1] = hex2bin($this->header[1]);
- $this->header[2] = hex2bin($this->header[2]);
-
- //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput(sprintf('[%s:%d:] EXIT!', __METHOD__, __LINE__));
- }
-
/**
* Checks whether the file header is initialized
*
*/
protected function isFileHeaderInitialized () {
//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput(sprintf('[%s:%d:] CALLED!', __METHOD__, __LINE__));
+
+ // Is the method there?
+ assert(is_callable(array($this, 'readFileHeader')));
+
// Default is not initialized
$isInitialized = FALSE;
*/
protected function createFileHeader () {
//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput(sprintf('[%s:%d:] CALLED!', __METHOD__, __LINE__));
+
+ // The method flushFileHeader() must be callable
+ assert(is_callable(array($this, 'flushFileHeader')));
+
// The file's header should not be initialized here
assert(!$this->isFileHeaderInitialized());
// Simple flush file header which will create it.
$this->flushFileHeader();
+ // Seek to beginning of file
+ $this->getIteratorInstance()->rewind();
+
+ // And update seek position ...
+ $this->updateSeekPosition();
+
+ // ... to write it back into the file
+ $this->flushFileHeader();
+
//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput(sprintf('[%s:%d:] EXIT!!', __METHOD__, __LINE__));
}
/**
- * Flushes the file header
+ * Seeks to old position
*
* @return void
*/
- protected function flushFileHeader () {
- //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput(sprintf('[%s:%d:] CALLED!', __METHOD__, __LINE__));
-
- // Put all informations together
- $header = sprintf('%s%s%s%s%s%s',
- // Magic
- self::STACK_MAGIC,
-
- // Separator magic<->count
- chr(self::SEPARATOR_HEADER_DATA),
-
- // Total entries (will be zero) and pad it to 20 chars
- str_pad($this->dec2hex($this->getCounter()), self::LENGTH_COUNT, '0', STR_PAD_LEFT),
-
- // Separator count<->seek position
- chr(self::SEPARATOR_HEADER_DATA),
-
- // Position (will be zero)
- str_pad($this->dec2hex($this->getSeekPosition(), 2), self::LENGTH_POSITION, '0', STR_PAD_LEFT),
-
- // Separator position<->entries
- chr(self::SEPARATOR_HEADER_ENTRIES)
- );
-
- // Write it to disk (header is always at seek position 0)
- $this->writeData(0, $header);
-
- //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput(sprintf('[%s:%d:] EXIT!', __METHOD__, __LINE__));
+ protected function seekToOldPosition () {
+ // Seek to currently ("old") saved position
+ $this->getIteratorInstance()->seek($this->getSeekPosition());
}
/**
*
* @param $seekPosition Seek position
* @param $data Data to be written
+ * @param $flushHeader Whether to flush the header (default: flush)
* @return void
*/
- protected function writeData ($seekPosition, $data) {
+ protected function writeData ($seekPosition, $data, $flushHeader = TRUE) {
//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput(sprintf('[%s:%d:] seekPosition=%s,data()=%s - CALLED!', __METHOD__, __LINE__, $seekPosition, strlen($data)));
// Write data at given position
// Update seek position
$this->updateSeekPosition();
- // Flush header
- $this->flushHeader();
+ // Flush the header?
+ if ($flushHeader === TRUE) {
+ // Flush header
+ $this->flushFileHeader();
+
+ // Seek to old position
+ $this->seekToOldPosition();
+ } // END - if
- // Seek to old position
- $this->seekToOldPosition();
//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput(sprintf('[%s:%d:] EXIT!', __METHOD__, __LINE__));
}
protected function preAllocateFile ($type) {
//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput(sprintf('[%s:%d:] CALLED!', __METHOD__, __LINE__));
+ // caluclateMinimumFileEntryLength() must be callable
+ assert(is_callable(array($this, 'caluclateMinimumFileEntryLength')));
+
// Is it enabled?
if ($this->getConfigInstance()->getConfigEntry($type . '_pre_allocate_enabled') != 'Y') {
// Not enabled
// Message to user
self::createDebugInstance(__CLASS__)->debugOutput(sprintf('[%s:%d:] Pre-allocating file ...', __METHOD__, __LINE__));
- /*
- * Calculate minimum length for one entry:
- * minimum length = hash length + separator + name + minimum entry size = ?? + 1 + 10 + 1 = ??
- */
- $minLengthEntry = self::getHashLength() + strlen(self::SEPARATOR_HASH_NAME) + self::LENGTH_NAME + 1;
+ // Calculate minimum length for one entry
+ $minLengthEntry = $this->caluclateMinimumFileEntryLength();
//* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput(sprintf('[%s:%d:] minLengthEntry=%s', __METHOD__, __LINE__, $minLengthEntry));
// Calulcate seek position
projects / core.git / blobdiff