From: Roland Haeder <roland@mxchange.org>
Date: Sat, 17 May 2014 22:42:05 +0000 (+0200)
Subject: Continued with file-based stacks:
X-Git-Url: https://git.mxchange.org/?a=commitdiff_plain;h=af45f18ec6af6f2a7a4734b477343b58a28c79ef;p=core.git

Continued with file-based stacks:
- used writeAtPosition() instead of seek()
- added debug line
- updated documentation

Signed-off-by: Roland Häder <roland@mxchange.org>
---

diff --git a/contrib/file_stack/format.txt b/contrib/file_stack/format.txt
index 637baf6f..9d88c78e 100644
--- a/contrib/file_stack/format.txt
+++ b/contrib/file_stack/format.txt
@@ -15,7 +15,7 @@ Continued:
 
 Purpose: | hash 0 | separator | name 0 | entry 0    | hash n | separator | name n | entry n    | EOF |
 ---------+--------+-----------+--------+------------+--------+-----------+--------+------------+-----+
-Bytes:   |  ???   | 1         | 10     | 1-n (pack) |  ???   | 1         | 10     | 1-n (pack) | 1   |
+Bytes:   |  64    | 1         | 10     | 1-n (pack) |  64    | 1         | 10     | 1-n (pack) | 1   |
 ---------+--------+-----------+--------+------------+--------+-----------+--------+------------+-----+
 Example: | abc    |    ???    | foo    |    ...     | abc    |    ???    | bar    |     ...    | EOF |
 
@@ -25,7 +25,7 @@ Explanations:
  separator    - Serves to detect end of strings with unknown/flexible length
  count        - Total amount of entries (not deleted) encoded in hexa-decimal
  position     - Seek position of current entry (which current() will give)
- hash X       - Hash sum of entry X
+ hash X       - Hash sum of entry X (SHA 256)
  name X       - Name of stack the entries belongs in
  entry X      - The actual data, compressed with pack()
  EOF          - End-of-file character
diff --git a/inc/classes/main/file_directories/class_BaseFileIo.php b/inc/classes/main/file_directories/class_BaseFileIo.php
index e4a076f9..cce45b80 100644
--- a/inc/classes/main/file_directories/class_BaseFileIo.php
+++ b/inc/classes/main/file_directories/class_BaseFileIo.php
@@ -144,7 +144,7 @@ class BaseFileIo extends BaseFrameworkSystem {
 		$status = fseek($this->getPointer(), $offset, $whence);
 
 		// Return status
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput(sprintf('[%s:%d:] status=%s', __METHOD__, __LINE__, $status));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput(sprintf('[%s:%d:] status=%d', __METHOD__, __LINE__, $status));
 		return $status;
 	}
 
@@ -161,7 +161,7 @@ class BaseFileIo extends BaseFrameworkSystem {
 
 		// Seek to end
 		$seekStatus = $this->seek(0, SEEK_END);
-		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput(sprintf('[%s:%d:] seekStatus=%s', __METHOD__, __LINE__, $seekStatus));
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput(sprintf('[%s:%d:] seekStatus=%d', __METHOD__, __LINE__, $seekStatus));
 
 		// Get position again  (which is the end of the file)
 		$size = $this->getSeekPosition();
diff --git a/inc/classes/main/stacker/file/class_BaseFileStack.php b/inc/classes/main/stacker/file/class_BaseFileStack.php
index 6f551827..68d95fa1 100644
--- a/inc/classes/main/stacker/file/class_BaseFileStack.php
+++ b/inc/classes/main/stacker/file/class_BaseFileStack.php
@@ -277,7 +277,10 @@ class BaseFileStack extends BaseStacker {
 		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput(sprintf('[%s:%d:] seekPosition=%s', __METHOD__, __LINE__, $seekPosition));
 
 		// Now seek to the position
-		$this->getIteratorInstance()->seek($seekPosition);
+		$seekStatus = $this->getIteratorInstance()->writeAtPosition($seekPosition, chr(0));
+
+		// Did it work?
+		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput(sprintf('[%s:%d:] seekStatus=%d', __METHOD__, __LINE__, $seekStatus));
 
 		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput(sprintf('[%s:%d:] EXIT!', __METHOD__, __LINE__));
 	}