Merge branch 'develop' into feature/coding_standardsfeature/coding_standards

1 files changed, 433 insertions, 26 deletions

diff --git a/src/H5FDlog.h b/src/H5FDlog.h
index a69bb18..a916fec 100644
--- a/src/H5FDlog.h
+++ b/src/H5FDlog.h
@@ -6,13 +6,13 @@
  * This file is part of HDF5.  The full HDF5 copyright notice, including     *
  * terms governing use, modification, and redistribution, is contained in    *
  * the COPYING file, which can be found at the root of the source code       *
- * distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases.  *
+ * distribution tree, or in https://www.hdfgroup.org/licenses.               *
  * If you do not have access to either file, you may request a copy from     *
  * help@hdfgroup.org.                                                        *
  * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
 /*
- * Programmer:  Quincey Koziol <koziol@ncsa.uiuc.edu>
+ * Programmer:  Quincey Koziol
  *              Monday, April 17, 2000
  *
  * Purpose:	The public header file for the log driver.
@@ -20,48 +20,456 @@
 #ifndef H5FDlog_H
 #define H5FDlog_H
 
-#define H5FD_LOG	(H5FD_log_init())
+#define H5FD_LOG       (H5FDperform_init(H5FD_log_init))
+#define H5FD_LOG_VALUE H5_VFD_LOG
 
 /* Flags for H5Pset_fapl_log() */
 /* Flags for tracking 'meta' operations (truncate) */
-#define H5FD_LOG_TRUNCATE   0x00000001
-#define H5FD_LOG_META_IO    (H5FD_LOG_TRUNCATE)
+#define H5FD_LOG_TRUNCATE 0x00000001
+#define H5FD_LOG_META_IO  (H5FD_LOG_TRUNCATE)
 /* Flags for tracking where reads/writes/seeks occur */
-#define H5FD_LOG_LOC_READ   0x00000002
-#define H5FD_LOG_LOC_WRITE  0x00000004
-#define H5FD_LOG_LOC_SEEK   0x00000008
-#define H5FD_LOG_LOC_IO     (H5FD_LOG_LOC_READ|H5FD_LOG_LOC_WRITE|H5FD_LOG_LOC_SEEK)
+#define H5FD_LOG_LOC_READ  0x00000002
+#define H5FD_LOG_LOC_WRITE 0x00000004
+#define H5FD_LOG_LOC_SEEK  0x00000008
+#define H5FD_LOG_LOC_IO    (H5FD_LOG_LOC_READ | H5FD_LOG_LOC_WRITE | H5FD_LOG_LOC_SEEK)
 /* Flags for tracking number of times each byte is read/written */
 #define H5FD_LOG_FILE_READ  0x00000010
 #define H5FD_LOG_FILE_WRITE 0x00000020
-#define H5FD_LOG_FILE_IO    (H5FD_LOG_FILE_READ|H5FD_LOG_FILE_WRITE)
+#define H5FD_LOG_FILE_IO    (H5FD_LOG_FILE_READ | H5FD_LOG_FILE_WRITE)
 /* Flag for tracking "flavor" (type) of information stored at each byte */
-#define H5FD_LOG_FLAVOR     0x00000040
+#define H5FD_LOG_FLAVOR 0x00000040
 /* Flags for tracking total number of reads/writes/seeks/truncates */
-#define H5FD_LOG_NUM_READ   0x00000080
-#define H5FD_LOG_NUM_WRITE  0x00000100
-#define H5FD_LOG_NUM_SEEK   0x00000200
+#define H5FD_LOG_NUM_READ     0x00000080
+#define H5FD_LOG_NUM_WRITE    0x00000100
+#define H5FD_LOG_NUM_SEEK     0x00000200
 #define H5FD_LOG_NUM_TRUNCATE 0x00000400
-#define H5FD_LOG_NUM_IO     (H5FD_LOG_NUM_READ|H5FD_LOG_NUM_WRITE|H5FD_LOG_NUM_SEEK|H5FD_LOG_NUM_TRUNCATE)
+#define H5FD_LOG_NUM_IO       (H5FD_LOG_NUM_READ | H5FD_LOG_NUM_WRITE | H5FD_LOG_NUM_SEEK | H5FD_LOG_NUM_TRUNCATE)
 /* Flags for tracking time spent in open/stat/read/write/seek/truncate/close */
-#define H5FD_LOG_TIME_OPEN  0x00000800
-#define H5FD_LOG_TIME_STAT  0x00001000
-#define H5FD_LOG_TIME_READ  0x00002000
-#define H5FD_LOG_TIME_WRITE 0x00004000
-#define H5FD_LOG_TIME_SEEK  0x00008000
+#define H5FD_LOG_TIME_OPEN     0x00000800
+#define H5FD_LOG_TIME_STAT     0x00001000
+#define H5FD_LOG_TIME_READ     0x00002000
+#define H5FD_LOG_TIME_WRITE    0x00004000
+#define H5FD_LOG_TIME_SEEK     0x00008000
 #define H5FD_LOG_TIME_TRUNCATE 0x00010000
-#define H5FD_LOG_TIME_CLOSE 0x00020000
-#define H5FD_LOG_TIME_IO    (H5FD_LOG_TIME_OPEN|H5FD_LOG_TIME_STAT|H5FD_LOG_TIME_READ|H5FD_LOG_TIME_WRITE|H5FD_LOG_TIME_SEEK|H5FD_LOG_TIME_TRUNCATE|H5FD_LOG_TIME_CLOSE)
+#define H5FD_LOG_TIME_CLOSE    0x00020000
+#define H5FD_LOG_TIME_IO                                                                                     \
+    (H5FD_LOG_TIME_OPEN | H5FD_LOG_TIME_STAT | H5FD_LOG_TIME_READ | H5FD_LOG_TIME_WRITE |                    \
+     H5FD_LOG_TIME_SEEK | H5FD_LOG_TIME_TRUNCATE | H5FD_LOG_TIME_CLOSE)
 /* Flags for tracking allocation/release of space in file */
-#define H5FD_LOG_ALLOC      0x00040000
-#define H5FD_LOG_FREE       0x00080000
-#define H5FD_LOG_ALL        (H5FD_LOG_FREE|H5FD_LOG_ALLOC|H5FD_LOG_TIME_IO|H5FD_LOG_NUM_IO|H5FD_LOG_FLAVOR|H5FD_LOG_FILE_IO|H5FD_LOG_LOC_IO|H5FD_LOG_META_IO)
+#define H5FD_LOG_ALLOC 0x00040000
+#define H5FD_LOG_FREE  0x00080000
+#define H5FD_LOG_ALL                                                                                         \
+    (H5FD_LOG_FREE | H5FD_LOG_ALLOC | H5FD_LOG_TIME_IO | H5FD_LOG_NUM_IO | H5FD_LOG_FLAVOR |                 \
+     H5FD_LOG_FILE_IO | H5FD_LOG_LOC_IO | H5FD_LOG_META_IO)
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
 H5_DLL hid_t H5FD_log_init(void);
+
+/**
+ * \ingroup FAPL
+ *
+ * \brief Sets up the logging virtual file driver (#H5FD_LOG) for use
+ *
+ * \fapl_id
+ * \param[in] logfile Name of the log file
+ * \param[in] flags Flags specifying the types of logging activity
+ * \param[in] buf_size The size of the logging buffers, in bytes (see description)
+ * \returns \herr_t
+ *
+ * \details H5Pset_fapl_log() modifies the file access property list to use the
+ *          logging driver, #H5FD_LOG. The logging virtual file driver (VFD) is
+ *          a clone of the standard SEC2 (#H5FD_SEC2) driver with additional
+ *          facilities for logging VFD metrics and activity to a file.
+ *
+ *          \p logfile is the name of the file in which the logging entries are
+ *          to be recorded.
+ *
+ *          The actions to be logged are specified in the parameter \p flags
+ *          using the pre-defined constants described in the following
+ *          table. Multiple flags can be set through the use of a logical \c OR
+ *          contained in parentheses. For example, logging read and write
+ *          locations would be specified as
+ *          \Code{(H5FD_LOG_LOC_READ|H5FD_LOG_LOC_WRITE)}.
+ *
+ * <table>
+ * <caption>Table1: Logging Flags</caption>
+ * <tr>
+ * <td>
+ * #H5FD_LOG_LOC_READ
+ * </td>
+ * <td rowspan="3">
+ * Track the location and length of every read, write, or seek operation.
+ * </td>
+ * </tr>
+ * <tr><td>#H5FD_LOG_LOC_WRITE</td></tr>
+ * <tr><td>#H5FD_LOG_LOC_SEEK</td></tr>
+ * <tr>
+ * <td>
+ * #H5FD_LOG_LOC_IO
+ * </td>
+ * <td>
+ * Track all I/O locations and lengths. The logical equivalent of the following:
+ * \Code{(#H5FD_LOG_LOC_READ | #H5FD_LOG_LOC_WRITE | #H5FD_LOG_LOC_SEEK)}
+ * </td>
+ * </tr>
+ * <tr>
+ * <td>
+ * #H5FD_LOG_FILE_READ
+ * </td>
+ * <td rowspan="2">
+ * Track the number of times each byte is read or written.
+ * </td>
+ * </tr>
+ * <tr><td>#H5FD_LOG_FILE_WRITE</td></tr>
+ * <tr>
+ * <td>
+ * #H5FD_LOG_FILE_IO
+ * </td>
+ * <td>
+ * Track the number of times each byte is read and written. The logical
+ * equivalent of the following:
+ * \Code{(#H5FD_LOG_FILE_READ | #H5FD_LOG_FILE_WRITE)}
+ * </td>
+ * </tr>
+ * <tr>
+ * <td>
+ * #H5FD_LOG_FLAVOR
+ * </td>
+ * <td>
+ * Track the type, or flavor, of information stored at each byte.
+ * </td>
+ * </tr>
+ * <tr>
+ * <td>
+ * #H5FD_LOG_NUM_READ
+ * </td>
+ * <td rowspan="4">
+ * Track the total number of read, write, seek, or truncate operations that occur.
+ * </td>
+ * </tr>
+ * <tr><td>#H5FD_LOG_NUM_WRITE</td></tr>
+ * <tr><td>#H5FD_LOG_NUM_SEEK</td></tr>
+ * <tr><td>#H5FD_LOG_NUM_TRUNCATE</td></tr>
+ * <tr>
+ * <td>
+ * #H5FD_LOG_NUM_IO
+ * </td>
+ * <td>
+ * Track the total number of all types of I/O operations. The logical equivalent
+ * of the following:
+ * \Code{(#H5FD_LOG_NUM_READ | #H5FD_LOG_NUM_WRITE | #H5FD_LOG_NUM_SEEK | #H5FD_LOG_NUM_TRUNCATE)}
+ * </td>
+ * </tr>
+ * <tr>
+ * <td>
+ * #H5FD_LOG_TIME_OPEN
+ * </td>
+ * <td rowspan="6">
+ * Track the time spent in open, stat, read, write, seek, or close operations.
+ * </td>
+ * </tr>
+ * <tr><td>#H5FD_LOG_TIME_STAT</td></tr>
+ * <tr><td>#H5FD_LOG_TIME_READ</td></tr>
+ * <tr><td>#H5FD_LOG_TIME_WRITE</td></tr>
+ * <tr><td>#H5FD_LOG_TIME_SEEK</td></tr>
+ * <tr><td>#H5FD_LOG_TIME_CLOSE</td></tr>
+ * <tr>
+ * <td>
+ * #H5FD_LOG_TIME_IO
+ * </td>
+ * <td>
+ * Track the time spent in each of the above operations. The logical equivalent
+ * of the following:
+ * \Code{(#H5FD_LOG_TIME_OPEN | #H5FD_LOG_TIME_STAT | #H5FD_LOG_TIME_READ | #H5FD_LOG_TIME_WRITE |
+ *        #H5FD_LOG_TIME_SEEK | #H5FD_LOG_TIME_CLOSE)}
+ * </td>
+ * </tr>
+ * <tr>
+ * <td>
+ * #H5FD_LOG_ALLOC
+ * </td>
+ * <td>
+ * Track the allocation of space in the file.
+ * </td>
+ * </tr>
+ * <tr>
+ * <td>
+ * #H5FD_LOG_ALL
+ * </td>
+ * <td>
+ * Track everything. The logical equivalent of the following:
+ * \Code{(#H5FD_LOG_ALLOC | #H5FD_LOG_TIME_IO | #H5FD_LOG_NUM_IO | #H5FD_LOG_FLAVOR | #H5FD_LOG_FILE_IO |
+ *        #H5FD_LOG_LOC_IO)}
+ * </td>
+ * </tr>
+ * </table>
+ * The logging driver can track the number of times each byte in the file is
+ * read from or written to (using #H5FD_LOG_FILE_READ and #H5FD_LOG_FILE_WRITE)
+ * and what kind of data is at that location (e.g., metadata, raw data; using
+ * #H5FD_LOG_FLAVOR). This information is tracked in internal buffers of size
+ * buf_size, which must be at least the maximum size in bytes of the file to be
+ * logged while the log driver is in use.\n
+ * One buffer of size buf_size will be created for each of #H5FD_LOG_FILE_READ,
+ * #H5FD_LOG_FILE_WRITE and #H5FD_LOG_FLAVOR when those flags are set; these
+ * buffers will not grow as the file increases in size.
+ *
+ * \par Output:
+ * This section describes the logging driver (LOG VFD) output.\n
+ * The table, immediately below, describes output of the various logging driver
+ * flags and function calls. A list of valid flavor values, describing the type
+ * of data stored, follows the table.
+ * <table>
+ * <caption>Table2: Logging Output</caption>
+ * <tr>
+ * <th>Flag</th><th>VFD Call</th><th>Output and Comments</th>
+ * </th>
+ * </tr>
+ * <tr>
+ * <td>#H5FD_LOG_LOC_READ</td>
+ * <td>Read</td>
+ * <td>
+ * \Code{%10a-%10a (%10Zu bytes) (%s) Read}\n\n
+ * Start position\n
+ * End position\n
+ * Number of bytes\n
+ * Flavor of read\n\n
+ * Adds \Code{(\%f s)} and seek time if #H5FD_LOG_TIME_SEEK is also set.
+ * </td>
+ * </tr>
+ * <tr>
+ * <td>#H5FD_LOG_LOC_READ</td>
+ * <td>Read Error</td>
+ * <td>
+ * \Code{Error! Reading: %10a-%10a (%10Zu bytes)}\n\n
+ * Same parameters as non-error entry.
+ * </td>
+ * </tr>
+ * <tr>
+ * <td>#H5FD_LOG_LOC_WRITE</td>
+ * <td>Write</td>
+ * <td>
+ * \Code{%10a-%10a (%10Zu bytes) (%s) Written}\n\n
+ * Start position\n
+ * End position\n
+ * Number of bytes\n
+ * Flavor of write\n\n
+ * Adds \Code{(\%f s)} and seek time if #H5FD_LOG_TIME_SEEK is also set.
+ * </td>
+ * </tr>
+ * <tr>
+ * <td>#H5FD_LOG_LOC_WRITE</td>
+ * <td>Write Error</td>
+ * <td>
+ * \Code{Error! Writing: %10a-%10a (%10Zu bytes)}\n\n
+ * Same parameters as non-error entry.
+ * </td>
+ * </tr>
+ * <tr>
+ * <td>#H5FD_LOG_LOC_SEEK</td>
+ * <td>Read, Write</td>
+ * <td>
+ * \Code{Seek: From %10a-%10a}\n\n
+ * Start position\n
+ * End position\n\n
+ * Adds \Code{(\%f s)} and seek time if #H5FD_LOG_TIME_SEEK is also set.
+ * </td>
+ * </tr>
+ * <tr>
+ * <td>#H5FD_LOG_FILE_READ</td>
+ * <td>Close</td>
+ * <td>
+ * Begins with:\n
+ * Dumping read I/O information\n\n
+ * Then, for each range of identical values, there is this line:\n
+ * \Code{Addr %10-%10 (%10lu bytes) read from %3d times}\n\n
+ * Start address\n
+ * End address\n
+ * Number of bytes\n
+ * Number of times read\n\n
+ * Note: The data buffer is scanned and each range of identical values
+ * gets one entry in the log file to save space and make it easier to read.
+ * </td>
+ * </tr>
+ * <tr>
+ * <td>#H5FD_LOG_FILE_WRITE</td>
+ * <td>Close</td>
+ * <td>
+ * Begins with:\n
+ * Dumping read I/O information\n\n
+ * Then, for each range of identical values, there is this line:\n
+ * \Code{Addr %10-%10 (%10lu bytes) written to %3d times}\n\n
+ * Start address\n
+ * End address\n
+ * Number of bytes\n
+ * Number of times written\n\n
+ * Note: The data buffer is scanned and each range of identical values
+ * gets one entry in the log file to save space and make it easier to read.
+ * </td>
+ * </tr>
+ * <tr>
+ * <td>#H5FD_LOG_FLAVOR</td>
+ * <td>Close</td>
+ * <td>
+ * Begins with:\n
+ * Dumping I/O flavor information\n\n
+ * Then, for each range of identical values, there is this line:\n
+ * \Code{Addr %10-%10 (%10lu bytes) flavor is %s}\n\n
+ * Start address\n
+ * End address\n
+ * Number of bytes\n
+ * Flavor\n\n
+ * Note: The data buffer is scanned and each range of identical values
+ * gets one entry in the log file to save space and make it easier to read.
+ * </td>
+ * </tr>
+ * <tr>
+ * <td>#H5FD_LOG_NUM_READ</td>
+ * <td>Close</td>
+ * <td>
+ * Total number of read operations: \Code{%11u}
+ * </td>
+ * </tr>
+ * <tr>
+ * <td>#H5FD_LOG_NUM_WRITE</td>
+ * <td>Close</td>
+ * <td>
+ * Total number of write operations: \Code{%11u}
+ * </td>
+ * </tr>
+ * <tr>
+ * <td>#H5FD_LOG_NUM_SEEK</td>
+ * <td>Close</td>
+ * <td>
+ * Total number of seek operations: \Code{%11u}
+ * </td>
+ * </tr>
+ * <tr>
+ * <td>#H5FD_LOG_NUM_TRUNCATE</td>
+ * <td>Close</td>
+ * <td>
+ * Total number of truncate operations: \Code{%11u}
+ * </td>
+ * </tr>
+ * <tr>
+ * <td>#H5FD_LOG_TIME_OPEN</td>
+ * <td>Open</td>
+ * <td>
+ * Open took: \Code{(\%f s)}
+ * </td>
+ * </tr>
+ * <tr>
+ * <td>#H5FD_LOG_TIME_READ</td>
+ * <td>Close, Read</td>
+ * <td>
+ * Total time in read operations: \Code{\%f s}\n\n
+ * See also: #H5FD_LOG_LOC_READ
+ * </td>
+ * </tr>
+ * </tr>
+ * <tr>
+ * <td>#H5FD_LOG_TIME_WRITE</td>
+ * <td>Close, Write</td>
+ * <td>
+ * Total time in write operations: \Code{\%f s}\n\n
+ * See also: #H5FD_LOG_LOC_WRITE
+ * </td>
+ * </tr>
+ * <tr>
+ * <td>#H5FD_LOG_TIME_SEEK</td>
+ * <td>Close, Read, Write</td>
+ * <td>
+ * Total time in write operations: \Code{\%f s}\n\n
+ * See also: #H5FD_LOG_LOC_SEEK or #H5FD_LOG_LOC_WRITE
+ * </td>
+ * </tr>
+ * <tr>
+ * <td>#H5FD_LOG_TIME_CLOSE</td>
+ * <td>Close</td>
+ * <td>
+ * Close took: \Code{(\%f s)}
+ * </td>
+ * </tr>
+ * <tr>
+ * <td>#H5FD_LOG_TIME_STAT</td>
+ * <td>Open</td>
+ * <td>
+ * Stat took: \Code{(\%f s)}
+ * </td>
+ * </tr>
+ * <tr>
+ * <td>#H5FD_LOG_ALLOC</td>
+ * <td>Alloc</td>
+ * <td>
+ * \Code{%10-%10 (%10Hu bytes) (\%s) Allocated}\n\n
+ * Start of address space\n
+ * End of address space\n
+ * Total size allocation\n
+ * Flavor of allocation
+ * </td>
+ * </tr>
+ * </table>
+ *
+ * \par Flavors:
+ * The \Emph{flavor} describes the type of stored information. The following
+ * table lists the flavors that appear in log output and briefly describes each.
+ * These terms are provided here to aid in the construction of log message
+ * parsers; a full description is beyond the scope of this document.
+ * <table>
+ * <caption>Table3: Flavors of logged data</caption>
+ * <tr>
+ * <th>Flavor</th><th>Description</th>
+ * </th>
+ * </tr>
+ * <tr>
+ * <td>#H5FD_MEM_NOLIST</td>
+ * <td>Error value</td>
+ * </tr>
+ * <tr>
+ * <td>#H5FD_MEM_DEFAULT</td>
+ * <td>Value not yet set.\n
+ *     May also be a datatype set in a larger allocation that will be
+ *     suballocated by the library.</td>
+ * </tr>
+ * <tr>
+ * <td>#H5FD_MEM_SUPER</td>
+ * <td>Superblock data</td>
+ * </tr>
+ * <tr>
+ * <td>#H5FD_MEM_BTREE</td>
+ * <td>B-tree data</td>
+ * </tr>
+ * <tr>
+ * <td>#H5FD_MEM_DRAW</td>
+ * <td>Raw data (for example, contents of a dataset)</td>
+ * </tr>
+ * <tr>
+ * <td>#H5FD_MEM_GHEAP</td>
+ * <td>Global heap data</td>
+ * </tr>
+ * <tr>
+ * <td>#H5FD_MEM_LHEAP</td>
+ * <td>Local heap data</td>
+ * </tr>
+ * <tr>
+ * <td>#H5FD_MEM_OHDR</td>
+ * <td>Object header data</td>
+ * </tr>
+ * </table>
+ *
+ * \version 1.8.7 The flags parameter has been changed from \Code{unsigned int}
+ *          to \Code{unsigned long long}.
+ *          The implementation of the #H5FD_LOG_TIME_OPEN, #H5FD_LOG_TIME_READ,
+ *          #H5FD_LOG_TIME_WRITE, and #H5FD_LOG_TIME_SEEK flags has been finished.
+ *          New flags were added: #H5FD_LOG_NUM_TRUNCATE and #H5FD_LOG_TIME_STAT.
+ * \version 1.6.0 The \c verbosity parameter has been removed.
+ *          Two new parameters have been added: \p flags of type \Code{unsigned} and
+ *          \p buf_size of type \Code{size_t}.
+ * \since 1.4.0
+ *
+ */
 H5_DLL herr_t H5Pset_fapl_log(hid_t fapl_id, const char *logfile, unsigned long long flags, size_t buf_size);
 
 #ifdef __cplusplus
@@ -69,4 +477,3 @@ H5_DLL herr_t H5Pset_fapl_log(hid_t fapl_id, const char *logfile, unsigned long
 #endif
 
 #endif
-