New azio which keeps meta data in its own header.

storage/archive/Makefile.am:
  Added archive reader
storage/archive/archive_test.c:
  Extended archive test
storage/archive/azio.c:
  Rewrite of azio to include support for more meta data in header
storage/archive/azlib.h:
  Extended information.
storage/archive/ha_archive.cc:
  Rewrite to handle new azio
storage/archive/ha_archive.h:
  Rewrite to handle new azio.
storage/archive/archive_reader.c:
  New BitKeeper file ``storage/archive/archive_reader.c''

1 files changed, 31 insertions, 11 deletions

diff --git a/storage/archive/azlib.h b/storage/archive/azlib.h
index 122e460d24c..3bf82ce218e 100644
--- a/storage/archive/azlib.h
+++ b/storage/archive/azlib.h
@@ -36,6 +36,7 @@
 #include <zlib.h>
 
 #include "../../mysys/mysys_priv.h"
+#include <my_dir.h>
 
 #ifdef  __cplusplus
 extern "C" {
@@ -45,11 +46,24 @@ extern "C" {
 /*
   ulonglong + ulonglong + ulonglong + ulonglong + uchar
 */
-#define AZMETA_BUFFER_SIZE sizeof(ulonglong) \
-  + sizeof(ulonglong) + sizeof(ulonglong) + sizeof(ulonglong) \
-  + sizeof(uchar)
-
-#define AZHEADER_SIZE 16
+#define AZMETA_BUFFER_SIZE sizeof(unsigned long long) \
+  + sizeof(unsigned long long) + sizeof(unsigned long long) + sizeof(unsigned long long) \
+  + sizeof(unsigned char)
+
+#define AZHEADER_SIZE 20
+
+#define AZ_MAGIC_POS 0
+#define AZ_VERSION_POS 1
+#define AZ_BLOCK_POS 2
+#define AZ_STRATEGY_POS 3
+#define AZ_FRM_POS 4
+#define AZ_META_POS 8
+#define AZ_START_POS 12
+#define AZ_ROW_POS 20
+#define AZ_FLUSH_POS 28
+#define AZ_CHECK_POS 36
+#define AZ_AUTOINCREMENT_POS 44
+#define AZ_DIRTY_POS 52
 
 /*
      The 'zlib' compression library provides in-memory compression and
@@ -164,7 +178,7 @@ extern "C" {
 /* The deflate compression method (the only one supported in this version) */
 
 #define Z_NULL  0  /* for initializing zalloc, zfree, opaque */
-#define Z_BUFSIZE 16384
+#define AZ_BUFSIZE 16384
 
 
 typedef struct azio_stream {
@@ -172,8 +186,8 @@ typedef struct azio_stream {
   int      z_err;   /* error code for last stream operation */
   int      z_eof;   /* set if end of input file */
   File     file;   /* .gz file */
-  Byte     inbuf[Z_BUFSIZE];  /* input buffer */
-  Byte     outbuf[Z_BUFSIZE]; /* output buffer */
+  Byte     inbuf[AZ_BUFSIZE];  /* input buffer */
+  Byte     outbuf[AZ_BUFSIZE]; /* output buffer */
   uLong    crc;     /* crc32 of uncompressed data */
   char     *msg;    /* error message */
   int      transparent; /* 1 if input file is not a .gz file */
@@ -184,6 +198,12 @@ typedef struct azio_stream {
   int      back;    /* one character push-back */
   int      last;    /* true if push-back is last character */
   unsigned char version;   /* Version */
+  unsigned int block_size;   /* Block Size */
+  unsigned long long check_point;   /* Last position we checked */
+  unsigned long long forced_flushes;   /* Forced Flushes */
+  unsigned long long rows;   /* rows */
+  unsigned long long auto_increment;   /* auto increment field */
+  unsigned char dirty;   /* State of file */
 } azio_stream;
 
                         /* basic functions */
@@ -219,7 +239,7 @@ int azdopen(azio_stream *s,File fd, int Flags);
 */
 
 
-extern unsigned long azread ( azio_stream *s, voidp buf, unsigned long len, int *error);
+extern unsigned int azread ( azio_stream *s, voidp buf, unsigned int len, int *error);
 /*
      Reads the given number of uncompressed bytes from the compressed file.
    If the input file was not in gzip format, gzread copies the given number
@@ -227,10 +247,10 @@ extern unsigned long azread ( azio_stream *s, voidp buf, unsigned long len, int
      gzread returns the number of uncompressed bytes actually read (0 for
    end of file, -1 for error). */
 
-extern unsigned long azwrite (azio_stream *s, voidpc buf, unsigned long len);
+extern unsigned int azwrite (azio_stream *s, voidpc buf, unsigned int len);
 /*
      Writes the given number of uncompressed bytes into the compressed file.
-   gzwrite returns the number of uncompressed bytes actually written
+   azwrite returns the number of uncompressed bytes actually written
    (0 in case of error).
 */