diff --git a/doxygen/dox/FileFormatDisc.dox b/doxygen/dox/FileFormatDisc.dox new file mode 100644 index 00000000000..8075840b97e --- /dev/null +++ b/doxygen/dox/FileFormatDisc.dox @@ -0,0 +1,1114 @@ + +/** \page FMTDISC HDF5 File Format Discussion + + +
+
Document's Audience:
+
Current H5 library designers and knowledgeable external developers.
+ +
Background Reading:
+
\ref FMT3
This describes the current HDF5 file format.
+
+ +\section sec_fmtdisc_intro Introduction +What is this document about?
+This document attempts to explain the HDF5 file format specification with a +few examples and describes some potential improvements to the format specification. + +\section sec_fmtdisc_exam File Format Examples +This section has several small programs and describes the format of a file +created with each of them. + +Example program one - Create an empty file: +\code +#include "hdf5.h" +#include + +int main() +{ + hid_t fid; /* File ID */ + herr_t ret; /* Generic return value */ + + /* Create the file */ + fid=H5Fcreate("example1.h5", H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT); + assert(fid>=0); + + /* Close the file */ + ret=H5Fclose(fid); + assert(ret>=0); + + return(0); +} +\endcode + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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+ +\code +%h5debug example1.h5 + +Reading signature at address 0 (rel) +File Super Block... +File name: example1.h5 +File access flags 0x00000000 +File open reference count: 1 +Address of super block: 0 (abs) +Size of user block: 0 bytes +Super block version number: 0 +Free list version number: 0 +Root group symbol table entry version number: 0 +Shared header version number: 0 +Size of file offsets (haddr_t type): 8 bytes +Size of file lengths (hsize_t type): 8 bytes +Symbol table leaf node 1/2 rank: 4 +Symbol table internal node 1/2 rank: 16 +File consistency flags: 0x00000003 +Base address: 0 (abs) +Free list address: UNDEF (rel) +Address of driver information block: UNDEF (rel) +Root group symbol table entry: + Name offset into private heap: 0 + Object header address: 928 + Dirty: Yes + Cache info type: Symbol Table + Cached information: + B-tree address: 384 + Heap address: 96 +\endcode + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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+ +\code +%h5debug example1.h5 384 96 + +New address: 384 +Reading signature at address 384 (rel) +Tree type ID: H5B_SNODE_ID +Size of node: 544 +Size of raw (disk) key: 8 +Dirty flag: False +Number of initial dirty children: 0 +Level: 0 +Address of left sibling: UNDEF +Address of right sibling: UNDEF +Number of children (max): 0 (32) + +\endcode + +Example program two - Create a file with a single dataset in it: +\code +#include "hdf5.h" +#include + +int main() +{ + hid_t fid; /* File ID */ + hid_t sid; /* Dataspace ID */ + hid_t did; /* Dataset ID */ + herr_t ret; /* Generic return value */ + + /* Create the file */ + fid=H5Fcreate("example2.h5", H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT); + assert(fid>=0); + + /* Create a scalar dataspace for the dataset */ + sid=H5Screate(H5S_SCALAR); + assert(sid>=0); + + /* Create a trivial dataset */ + did=H5Dcreate(fid, "Dataset", H5T_NATIVE_INT, sid, H5P_DEFAULT); + assert(did>=0); + + /* Close the dataset */ + ret=H5Dclose(did); + assert(ret>=0); + + /* Close the dataspace */ + ret=H5Sclose(sid); + assert(ret>=0); + + /* Close the file */ + ret=H5Fclose(fid); + assert(ret>=0); + + return(0); +} +\endcode + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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+ +\code +%h5debug example2.h5 976 + +New address: 976 +Reading signature at address 976 (rel) +Object Header... +Dirty: 0 +Version: 1 +Header size (in bytes): 16 +Number of links: 1 +Number of messages (allocated): 6 (32) +Number of chunks (allocated): 1 (8) +Chunk 0... + Dirty: 0 + Address: 992 + Size in bytes: 256 +Message 0... + Message ID (sequence number): 0x0005 `fill_new' (0) + Shared: No + Constant: Yes + Raw size in obj header: 8 bytes + Chunk number: 0 + Message Information: + Version: 1 + Space Allocation Time: Late + Fill Time: On Allocation + Fill Value Defined: Undefined + Size: 0 + Data type: +Message 1... + Message ID (sequence number): 0x0003 data_type(0) + Shared message: No + Constant: Yes + Raw size in obj header: 16 bytes + Chunk number: 0 + Message Information: + Type class: integer + Size: 4 bytes + Byte order: little endian + Precision: 32 bits + Offset: 0 bits + Low pad type: zero + High pad type: zero + Sign scheme: 2's comp +Message 2... + Message ID (sequence number): 0x0001 simple_dspace(0) + Shared message: No + Constant: No + Raw size in obj header: 8 bytes + Chunk number: 0 + Message Information: + Rank: 0 +Message 3... + Message ID (sequence number): 0x0008 layout(0) + Shared message: No + Constant: No + Raw size in obj header: 24 bytes + Chunk number: 0 + Message Information: + Data address: UNDEF + Number of dimensions: 1 + Size: {4} +Message 4... + Message ID (sequence number): 0x0012 mtime_new(0) + Shared message: No + Constant: No + Raw size in obj header: 8 bytes + Chunk number: 0 + Message Information: + Time: 2003-03-05 14:52:00 CST +Message 5... + Message ID (sequence number): 0x0000 null(0) + Shared message: No + Constant: No + Raw size in obj header: 144 bytes + Chunk number: 0 + Message Information: + +\endcode + +*/ + diff --git a/doxygen/dox/TechnicalNotes.dox b/doxygen/dox/TechnicalNotes.dox index 4a61caa6492..39366ca817e 100644 --- a/doxygen/dox/TechnicalNotes.dox +++ b/doxygen/dox/TechnicalNotes.dox @@ -1049,12 +1049,6 @@ been used at the lowest level to process the request. */ -/** \page FMTDISC HDF5 File Format Discussion - -\htmlinclude FileFormat.html - -*/ - /** \page APPDBG Debugging HDF5 Applications \section sec_adddbg_intro Introduction diff --git a/doxygen/examples/FileFormat.html b/doxygen/examples/FileFormat.html deleted file mode 100644 index 40d21138eb2..00000000000 --- a/doxygen/examples/FileFormat.html +++ /dev/null @@ -1,1273 +0,0 @@ - - - HDF5 File Format Discussion - - - - - - - -
-

HDF5 File Format Discussion

-

Quincey Koziol
- koziol@ncsa.uiuc.edu
- May 15, 2003 -

- -
    - -

  1. Document's Audience:

    - -
      -
    • Current H5 library designers and knowledgeable external developers.
      • -
    - -

  2. Background Reading:

    - -
    -
    HDF5 File Format Specification -
    This describes the current HDF5 file format. -
    - -

  3. Introduction:

    - -
    -
    What is this document about?
    -
    This document attempts to explain the HDF5 file format - specification with a few examples and describes some potential - improvements to the format specification. -

    -
    - -

  4. File Format Examples:

    - -

    This section has several small programs and describes the format of a file -created with each of them. -

    - -

    Example program one - Create an empty file: -

     
-#include "hdf5.h"
-#include 
-
-int main()
-{
-    hid_t fid;      /* File ID */
-    herr_t ret;     /* Generic return value */
-
-    /* Create the file */
-    fid=H5Fcreate("example1.h5", H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
-    assert(fid>=0);
-
-    /* Close the file */
-    ret=H5Fclose(fid);
-    assert(ret>=0);
-
-    return(0);
-}
-
    - -
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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-   Dirty:                                          Yes
-   Cache info type:                                Symbol Table
-   Cached information:
-      B-tree address:                              384
-      Heap address:                                96
-
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-   Address:                                        944
-   Size in bytes:                                  32
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-   Message ID (sequence number):                   0x0011 stab(0)
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-   Raw size in obj header:                         16 bytes
-   Chunk number:                                   0
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-      Name heap address:                           96
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-Reading signature at address 96 (rel)
-Local Heap...
-Dirty:                                             0
-Header size (in bytes):                            32
-Address of heap data:                              128
-Data bytes allocated on disk:                      256
-Data bytes allocated in core:                      256
-Free Blocks (offset, size):
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-Percent of heap used:                              3.12%
-Data follows (`__' indicates free region)...
-     0: 00 00 00 00 00 00 00 00  __ __ __ __ __ __ __ __ ........
-    16: __ __ __ __ __ __ __ __  __ __ __ __ __ __ __ __
-    32: __ __ __ __ __ __ __ __  __ __ __ __ __ __ __ __
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    -
    -
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-
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-Reading signature at address 384 (rel)
-Tree type ID:                                      H5B_SNODE_ID
-Size of node:                                      544
-Size of raw (disk) key:                            8
-Dirty flag:                                        False
-Number of initial dirty children:                  0
-Level:                                             0
-Address of left sibling:                           UNDEF
-Address of right sibling:                          UNDEF
-Number of children (max):                          0 (32)
-
-
    - -

    - -

    Example program two - Create a file with a single dataset in it: -

     
-#include "hdf5.h"
-#include 
-
-int main()
-{
-    hid_t fid;      /* File ID */
-    hid_t sid;      /* Dataspace ID */
-    hid_t did;      /* Dataset ID */
-    herr_t ret;     /* Generic return value */
-
-    /* Create the file */
-    fid=H5Fcreate("example2.h5", H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
-    assert(fid>=0);
-
-    /* Create a scalar dataspace for the dataset */
-    sid=H5Screate(H5S_SCALAR);
-    assert(sid>=0);
-
-    /* Create a trivial dataset */
-    did=H5Dcreate(fid, "Dataset", H5T_NATIVE_INT, sid, H5P_DEFAULT);
-    assert(did>=0);
-
-    /* Close the dataset */
-    ret=H5Dclose(did);
-    assert(ret>=0);
-
-    /* Close the dataspace */
-    ret=H5Sclose(sid);
-    assert(ret>=0);
-
-    /* Close the file */
-    ret=H5Fclose(fid);
-    assert(ret>=0);
-
-    return(0);
-}
-
    - -
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    - Super Block -
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