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Overview
Comment: | Minor cleanups to the header comments on various test_*.c file, to make the suitable for programmer-level documentation. |
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Timelines: | family | ancestors | descendants | both | trunk |
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SHA1: |
a65d043a2ad895b931871c67e0ef397a |
User & Date: | drh 2011-05-23 18:37:42.742 |
Context
2011-05-24
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00:35 | Make sure the savepoint index is correct one calls to sqlite3VtabSavepoint with SAVEPOINT_BEGIN. (check-in: a9d095660c user: drh tags: trunk) | |
2011-05-23
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18:37 | Minor cleanups to the header comments on various test_*.c file, to make the suitable for programmer-level documentation. (check-in: a65d043a2a user: drh tags: trunk) | |
2011-05-20
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20:42 | Adjustments to documentation hyperlinks to accommodate the new VFS documentation. (check-in: 139a8f53ae user: drh tags: trunk) | |
Changes
Changes to src/test_demovfs.c.
1 2 3 4 5 6 7 8 9 10 11 12 | /* ** 2010 April 7 ** ** The author disclaims copyright to this source code. In place of ** a legal notice, here is a blessing: ** ** May you do good and not evil. ** May you find forgiveness for yourself and forgive others. ** May you share freely, never taking more than you give. ** ************************************************************************* ** | | | | | > < < < | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 | /* ** 2010 April 7 ** ** The author disclaims copyright to this source code. In place of ** a legal notice, here is a blessing: ** ** May you do good and not evil. ** May you find forgiveness for yourself and forgive others. ** May you share freely, never taking more than you give. ** ************************************************************************* ** ** This file implements an example of a simple VFS implementation that ** omits complex features often not required or not possible on embedded ** platforms. Code is included to buffer writes to the journal file, ** which can be a significant performance improvement on some embedded ** platforms. ** ** OVERVIEW ** ** The code in this file implements a minimal SQLite VFS that can be ** used on Linux and other posix-like operating systems. The following ** system calls are used: ** ** File-system: access(), unlink(), getcwd() |
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Changes to src/test_journal.c.
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10 11 12 13 14 15 16 | ** ****************************************************************************** ** ** This file contains code for a VFS layer that acts as a wrapper around ** an existing VFS. The code in this file attempts to verify that SQLite ** correctly populates and syncs a journal file before writing to a ** corresponding database file. | | < < < < < < | 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 | ** ****************************************************************************** ** ** This file contains code for a VFS layer that acts as a wrapper around ** an existing VFS. The code in this file attempts to verify that SQLite ** correctly populates and syncs a journal file before writing to a ** corresponding database file. ** ** INTERFACE ** ** The public interface to this wrapper VFS is two functions: ** ** jt_register() ** jt_unregister() ** |
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95 96 97 98 99 100 101 102 103 104 105 106 107 108 | ** a) A block of zeroes (or anything else that is not a valid ** journal-header) is written to the start of the journal file. ** ** b) A journal file is truncated to zero bytes in size using xTruncate. ** ** c) The journal file is deleted using xDelete. */ /* ** Maximum pathname length supported by the jt backend. */ #define JT_MAX_PATHNAME 512 /* | > > > > | 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 | ** a) A block of zeroes (or anything else that is not a valid ** journal-header) is written to the start of the journal file. ** ** b) A journal file is truncated to zero bytes in size using xTruncate. ** ** c) The journal file is deleted using xDelete. */ #if SQLITE_TEST /* This file is used for testing only */ #include "sqlite3.h" #include "sqliteInt.h" /* ** Maximum pathname length supported by the jt backend. */ #define JT_MAX_PATHNAME 512 /* |
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Changes to src/test_multiplex.c.
1 2 3 4 5 6 7 8 9 10 11 12 13 | /* ** 2010 October 28 ** ** The author disclaims copyright to this source code. In place of ** a legal notice, here is a blessing: ** ** May you do good and not evil. ** May you find forgiveness for yourself and forgive others. ** May you share freely, never taking more than you give. ** ************************************************************************* ** ** This file contains a VFS "shim" - a layer that sits in between the | | > > > > > > > > | < < > > > > > > > > | > > > > > > > > > | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 | /* ** 2010 October 28 ** ** The author disclaims copyright to this source code. In place of ** a legal notice, here is a blessing: ** ** May you do good and not evil. ** May you find forgiveness for yourself and forgive others. ** May you share freely, never taking more than you give. ** ************************************************************************* ** ** This file contains a VFS "shim" - a layer that sits in between the ** pager and the real VFS - that breaks up a very large database file ** into two or more smaller files on disk. This is useful, for example, ** in order to support large, multi-gigabyte databases on older filesystems ** that limit the maximum file size to 2 GiB. ** ** USAGE: ** ** Compile this source file and link it with your application. Then ** at start-time, invoke the following procedure: ** ** int sqlite3_multiplex_initialize( ** const char *zOrigVfsName, // The underlying real VFS ** int makeDefault // True to make multiplex the default VFS ** ); ** ** The procedure call above will create and register a new VFS shim named ** "multiplex". The multiplex VFS will use the VFS named by zOrigVfsName to ** do the actual disk I/O. (The zOrigVfsName parameter may be NULL, in ** which case the default VFS at the moment sqlite3_multiplex_initialize() ** is called will be used as the underlying real VFS.) ** ** If the makeDefault parameter is TRUE then multiplex becomes the new ** default VFS. Otherwise, you can use the multiplex VFS by specifying ** "multiplex" as the 4th parameter to sqlite3_open_v2() or by employing ** URI filenames and adding "vfs=multiplex" as a parameter to the filename ** URI. ** ** The multiplex VFS allows databases up to 32 GiB in size. But it splits ** the files up into 1 GiB pieces, so that they will work even on filesystems ** that do not support large files. */ #include "sqlite3.h" #include <string.h> #include <assert.h> #include "test_multiplex.h" #ifndef SQLITE_CORE |
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Changes to src/test_vfs.c.
1 2 3 4 5 6 7 8 9 10 11 12 | /* ** 2010 May 05 ** ** The author disclaims copyright to this source code. In place of ** a legal notice, here is a blessing: ** ** May you do good and not evil. ** May you find forgiveness for yourself and forgive others. ** May you share freely, never taking more than you give. ** ****************************************************************************** ** | < < < < > | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 | /* ** 2010 May 05 ** ** The author disclaims copyright to this source code. In place of ** a legal notice, here is a blessing: ** ** May you do good and not evil. ** May you find forgiveness for yourself and forgive others. ** May you share freely, never taking more than you give. ** ****************************************************************************** ** ** This file contains the implementation of the Tcl [testvfs] command, ** used to create SQLite VFS implementations with various properties and ** instrumentation to support testing SQLite. ** ** testvfs VFSNAME ?OPTIONS? ** ** Available options are: ** ** -noshm BOOLEAN (True to omit shm methods. Default false) ** -default BOOLEAN (True to make the vfs default. Default false) ** -szosfile INTEGER (Value for sqlite3_vfs.szOsFile) ** -mxpathname INTEGER (Value for sqlite3_vfs.mxPathname) ** -iversion INTEGER (Value for sqlite3_vfs.iVersion) */ #if SQLITE_TEST /* This file is used for testing only */ #include "sqlite3.h" #include "sqliteInt.h" typedef struct Testvfs Testvfs; typedef struct TestvfsShm TestvfsShm; typedef struct TestvfsBuffer TestvfsBuffer; |
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