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Remove the unused xRename() method from the sqlite3_vfs object.

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Add better documentation on the xCurrentTimeInt64() method.

FossilOrigin-Name: 51ec0e5432dd6849b83a3d969a018482eb3bb083
This commit is contained in:
drh
2010-07-03 17:13:31 +00:00
parent b3f4351f00
commit 2667be5e3f
11 changed files with 39 additions and 35 deletions
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16
src/sqlite.h.in
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@@ -827,16 +827,23 @@ typedef struct sqlite3_mutex sqlite3_mutex;
** handled as a fatal error by SQLite, vfs implementations should endeavor
** to prevent this by setting mxPathname to a sufficiently large value.
**
** The xRandomness(), xSleep(), and xCurrentTime() interfaces
** are not strictly a part of the filesystem, but they are
** The xRandomness(), xSleep(), xCurrentTime(), and xCurrentTimeInt64()
** interfaces are not strictly a part of the filesystem, but they are
** included in the VFS structure for completeness.
** The xRandomness() function attempts to return nBytes bytes
** of good-quality randomness into zOut. The return value is
** the actual number of bytes of randomness obtained.
** The xSleep() method causes the calling thread to sleep for at
** least the number of microseconds given. The xCurrentTime()
** method returns a Julian Day Number for the current date and time.
**
** method returns a Julian Day Number for the current date and time as
** a floating point value.
** The xCurrentTimeInt64() method returns, as an integer, the Julian
** Day Number multipled by 86400000 (the number of milliseconds in
** a 24-hour day).
** ^SQLite will use the xCurrentTimeInt64() method to get the current
** date and time if that method is available (if iVersion is 2 or
** greater and the function pointer is not NULL) and will fall back
** to xCurrentTime() if xCurrentTimeInt64() is unavailable.
*/
typedef struct sqlite3_vfs sqlite3_vfs;
struct sqlite3_vfs {
@@ -863,7 +870,6 @@ struct sqlite3_vfs {
** The methods above are in version 1 of the sqlite_vfs object
** definition. Those that follow are added in version 2 or later
*/
int (*xRename)(sqlite3_vfs*, const char *zOld, const char *zNew, int dirSync);
int (*xCurrentTimeInt64)(sqlite3_vfs*, sqlite3_int64*);
/*
** The methods above are in versions 1 and 2 of the sqlite_vfs object.