From: Roland Haeder <roland@mxchange.org>
Date: Sat, 17 May 2014 22:50:10 +0000 (+0200)
Subject: Continued with hash-based stacks:
X-Git-Url: https://git.mxchange.org/?p=core.git;a=commitdiff_plain;h=06b0b3f19b5a3aa84b911260cc17a85a36c317ad

Continued with hash-based stacks:
- added separator between count->seek position
- changed separators: chr(0) is for pre-allocation

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

diff --git a/contrib/file_stack/format.txt b/contrib/file_stack/format.txt
index 9d88c78e..cb8c07ee 100644
--- a/contrib/file_stack/format.txt
+++ b/contrib/file_stack/format.txt
@@ -5,11 +5,11 @@ This is the format for a file-based stack which works as any Stackable class.
 
 General made up:
 
-Purpose: | "magic"   | separator | count    | position | separator |
----------+-----------+-----------+----------+----------+-----------+
-Bytes:   | 9         | 1         | 20 (hex) | 20 (hex) | 1         |
----------+-----------+-----------+----------+----------+-----------+
-Example: | STACKv1.0 | 00        | 00...ff  | 00...ff  | ff        |
+Purpose: | "magic"   | separator | count    | separator | position | separator |
+---------+-----------+-----------+----------+-----------+------0---+-----------+
+Bytes:   | 9         | 1         | 20 (hex) | 1         | 20 (hex) | 1         |
+---------+-----------+-----------+----------+-----------+----------+-----------+
+Example: | STACKv1.0 | 01        | 00...ff  | 02        | 00...ff  | 03        |
 
 Continued:
 
@@ -17,7 +17,7 @@ Purpose: | hash 0 | separator | name 0 | entry 0    | hash n | separator | name
 ---------+--------+-----------+--------+------------+--------+-----------+--------+------------+-----+
 Bytes:   |  64    | 1         | 10     | 1-n (pack) |  64    | 1         | 10     | 1-n (pack) | 1   |
 ---------+--------+-----------+--------+------------+--------+-----------+--------+------------+-----+
-Example: | abc    |    ???    | foo    |    ...     | abc    |    ???    | bar    |     ...    | EOF |
+Example: | abc    |    04     | foo    |    ...     | abc    |    04     | bar    |     ...    | EOF |
 
 Explanations:
 -------------
@@ -29,4 +29,5 @@ Explanations:
  name X       - Name of stack the entries belongs in
  entry X      - The actual data, compressed with pack()
  EOF          - End-of-file character
+ ...          - Data
  ???          - Must be still found out which character/hashing algorthym fits best
diff --git a/inc/classes/main/stacker/file/class_BaseFileStack.php b/inc/classes/main/stacker/file/class_BaseFileStack.php
index 68d95fa1..8a31cfaf 100644
--- a/inc/classes/main/stacker/file/class_BaseFileStack.php
+++ b/inc/classes/main/stacker/file/class_BaseFileStack.php
@@ -30,17 +30,22 @@ class BaseFileStack extends BaseStacker {
 	/**
 	 * Separator magic->count
 	 */
-	const SEPARATOR_MAGIC_COUNT = 0x00;
+	const SEPARATOR_MAGIC_COUNT = 0x01;
+
+	/**
+	 * Separator count->position
+	 */
+	const SEPARATOR_COUNT_SEEK_POS = 0x02;
 
 	/**
 	 * Separator position->entries
 	 */
-	const SEPARATOR_SEEK_POS_ENTRIES = 0xff;
+	const SEPARATOR_SEEK_POS_ENTRIES = 0x03;
 
 	/**
 	 * Separator hash->name
 	 */
-	const SEPARATOR_HASH_NAME = 0x05;
+	const SEPARATOR_HASH_NAME = 0x04;
 
 	/**
 	 * Length of name
@@ -219,7 +224,7 @@ class BaseFileStack extends BaseStacker {
 		/* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput(sprintf('[%s:%d:] CALLED!', __METHOD__, __LINE__));
 
 		// Put all informations together
-		$header = sprintf('%s%s%s%s%s',
+		$header = sprintf('%s%s%s%s%s%s',
 			// Magic
 			self::STACK_MAGIC,
 
@@ -229,8 +234,11 @@ class BaseFileStack extends BaseStacker {
 			// Total entries (will be zero) and pad it to 20 chars
 			str_pad($this->dec2hex($this->getCounter()), self::COUNT_LENGTH, '0', STR_PAD_LEFT),
 
+			// Separator count<->seek position
+			chr(self::SEPARATOR_COUNT_SEEK_POS),
+
 			// Position (will be zero)
-			str_pad($this->dec2hex(0, 2), self::COUNT_POSITION, '0', STR_PAD_LEFT),
+			str_pad($this->dec2hex($this->getSeekPosition(), 2), self::COUNT_POSITION, '0', STR_PAD_LEFT),
 
 			// Separator position<->entries
 			chr(self::SEPARATOR_SEEK_POS_ENTRIES)