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Overview
| Comment: | Updates to the sqlite3_file_control() documentation. No changes to code. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
240e32ab1f2a18e3c9b92f577b1cc8f8 |
| User & Date: | drh 2018-01-02 13:48:48 |
Context
|
2018-01-02
| ||
| 16:02 | Enhance the memvfs extension so that it can be read/write. check-in: 04c9197d user: drh tags: trunk | |
| 13:48 | Updates to the sqlite3_file_control() documentation. No changes to code. check-in: 240e32ab user: drh tags: trunk | |
| 12:50 | Do not attempt to use pragma_module_list in the command-line shell unless it has been compiled with -DSQLITE_INTROSPECTION_PRAGMAS. check-in: 39ca5fcd user: drh tags: trunk | |
Changes
Changes to src/sqlite.h.in.
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** ^A NULL pointer can be used in place of "main" to refer to the
** main database file.
** ^The third and fourth parameters to this routine
** are passed directly through to the second and third parameters of
** the xFileControl method. ^The return value of the xFileControl
** method becomes the return value of this routine.
**
** ^The SQLITE_FCNTL_FILE_POINTER value for the op parameter causes
** a pointer to the underlying [sqlite3_file] object to be written into
** the space pointed to by the 4th parameter. ^The SQLITE_FCNTL_FILE_POINTER
** case is a short-circuit path which does not actually invoke the
** underlying sqlite3_io_methods.xFileControl method.
**
** ^If the second parameter (zDbName) does not match the name of any
** open database file, then SQLITE_ERROR is returned. ^This error
** code is not remembered and will not be recalled by [sqlite3_errcode()]
** or [sqlite3_errmsg()]. The underlying xFileControl method might
** also return SQLITE_ERROR. There is no way to distinguish between
** an incorrect zDbName and an SQLITE_ERROR return from the underlying
** xFileControl method.
**
** See also: [SQLITE_FCNTL_LOCKSTATE]
*/
int sqlite3_file_control(sqlite3*, const char *zDbName, int op, void*);
/*
** CAPI3REF: Testing Interface
**
** ^The sqlite3_test_control() interface is used to read out internal
|
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** ^A NULL pointer can be used in place of "main" to refer to the ** main database file. ** ^The third and fourth parameters to this routine ** are passed directly through to the second and third parameters of ** the xFileControl method. ^The return value of the xFileControl ** method becomes the return value of this routine. ** ** ^The [SQLITE_FCNTL_FILE_POINTER] value for the op parameter causes ** a pointer to the underlying [sqlite3_file] object to be written into ** the space pointed to by the 4th parameter. ^The [SQLITE_FCNTL_FILE_POINTER] ** case is a short-circuit path which does not actually invoke the ** underlying sqlite3_io_methods.xFileControl method. ** ** ^If the second parameter (zDbName) does not match the name of any ** open database file, then SQLITE_ERROR is returned. ^This error ** code is not remembered and will not be recalled by [sqlite3_errcode()] ** or [sqlite3_errmsg()]. The underlying xFileControl method might ** also return SQLITE_ERROR. There is no way to distinguish between ** an incorrect zDbName and an SQLITE_ERROR return from the underlying ** xFileControl method. ** ** See also: [file control opcodes] */ int sqlite3_file_control(sqlite3*, const char *zDbName, int op, void*); /* ** CAPI3REF: Testing Interface ** ** ^The sqlite3_test_control() interface is used to read out internal |