mirror of
https://github.com/ncruces/go-sqlite3.git
synced 2026-01-11 21:49:13 +00:00
Documentation.
This commit is contained in:
Nuno Cruces
@@ -15,5 +15,5 @@ Roadmap:
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- [x] port [`test_demovfs.c`](https://www.sqlite.org/src/doc/trunk/src/test_demovfs.c) to Go
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- branch [`wasi`](https://github.com/ncruces/go-sqlite3/tree/wasi) uses `test_demovfs.c` directly
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- [x] come up with a simple, nice API, enough for simple queries
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- [ ] file locking, compatible with SQLite on Windows/Unix
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- [ ] ~shared-memory, compatible with SQLite on Windows/Unix~
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- [x] file locking, compatible with SQLite on Unix
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- [ ] file locking, compatible with SQLite on Windows
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155
const.go
155
const.go
@@ -47,82 +47,85 @@ const (
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WARNING ErrorCode = 28 /* Warnings from sqlite3_log() */
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)
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type ExtendedErrorCode uint16
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type (
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ExtendedErrorCode uint16
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xErrorCode = ExtendedErrorCode
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)
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const (
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ERROR_MISSING_COLLSEQ = ExtendedErrorCode(ERROR) | (1 << 8)
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ERROR_RETRY = ExtendedErrorCode(ERROR) | (2 << 8)
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ERROR_SNAPSHOT = ExtendedErrorCode(ERROR) | (3 << 8)
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IOERR_READ = ExtendedErrorCode(IOERR) | (1 << 8)
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IOERR_SHORT_READ = ExtendedErrorCode(IOERR) | (2 << 8)
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IOERR_WRITE = ExtendedErrorCode(IOERR) | (3 << 8)
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IOERR_FSYNC = ExtendedErrorCode(IOERR) | (4 << 8)
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IOERR_DIR_FSYNC = ExtendedErrorCode(IOERR) | (5 << 8)
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IOERR_TRUNCATE = ExtendedErrorCode(IOERR) | (6 << 8)
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IOERR_FSTAT = ExtendedErrorCode(IOERR) | (7 << 8)
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IOERR_UNLOCK = ExtendedErrorCode(IOERR) | (8 << 8)
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IOERR_RDLOCK = ExtendedErrorCode(IOERR) | (9 << 8)
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IOERR_DELETE = ExtendedErrorCode(IOERR) | (10 << 8)
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IOERR_BLOCKED = ExtendedErrorCode(IOERR) | (11 << 8)
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IOERR_NOMEM = ExtendedErrorCode(IOERR) | (12 << 8)
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IOERR_ACCESS = ExtendedErrorCode(IOERR) | (13 << 8)
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IOERR_CHECKRESERVEDLOCK = ExtendedErrorCode(IOERR) | (14 << 8)
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IOERR_LOCK = ExtendedErrorCode(IOERR) | (15 << 8)
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IOERR_CLOSE = ExtendedErrorCode(IOERR) | (16 << 8)
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IOERR_DIR_CLOSE = ExtendedErrorCode(IOERR) | (17 << 8)
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IOERR_SHMOPEN = ExtendedErrorCode(IOERR) | (18 << 8)
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IOERR_SHMSIZE = ExtendedErrorCode(IOERR) | (19 << 8)
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IOERR_SHMLOCK = ExtendedErrorCode(IOERR) | (20 << 8)
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IOERR_SHMMAP = ExtendedErrorCode(IOERR) | (21 << 8)
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IOERR_SEEK = ExtendedErrorCode(IOERR) | (22 << 8)
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IOERR_DELETE_NOENT = ExtendedErrorCode(IOERR) | (23 << 8)
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IOERR_MMAP = ExtendedErrorCode(IOERR) | (24 << 8)
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IOERR_GETTEMPPATH = ExtendedErrorCode(IOERR) | (25 << 8)
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IOERR_CONVPATH = ExtendedErrorCode(IOERR) | (26 << 8)
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IOERR_VNODE = ExtendedErrorCode(IOERR) | (27 << 8)
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IOERR_AUTH = ExtendedErrorCode(IOERR) | (28 << 8)
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IOERR_BEGIN_ATOMIC = ExtendedErrorCode(IOERR) | (29 << 8)
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IOERR_COMMIT_ATOMIC = ExtendedErrorCode(IOERR) | (30 << 8)
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IOERR_ROLLBACK_ATOMIC = ExtendedErrorCode(IOERR) | (31 << 8)
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IOERR_DATA = ExtendedErrorCode(IOERR) | (32 << 8)
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IOERR_CORRUPTFS = ExtendedErrorCode(IOERR) | (33 << 8)
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LOCKED_SHAREDCACHE = ExtendedErrorCode(LOCKED) | (1 << 8)
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LOCKED_VTAB = ExtendedErrorCode(LOCKED) | (2 << 8)
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BUSY_RECOVERY = ExtendedErrorCode(BUSY) | (1 << 8)
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BUSY_SNAPSHOT = ExtendedErrorCode(BUSY) | (2 << 8)
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BUSY_TIMEOUT = ExtendedErrorCode(BUSY) | (3 << 8)
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CANTOPEN_NOTEMPDIR = ExtendedErrorCode(CANTOPEN) | (1 << 8)
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CANTOPEN_ISDIR = ExtendedErrorCode(CANTOPEN) | (2 << 8)
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CANTOPEN_FULLPATH = ExtendedErrorCode(CANTOPEN) | (3 << 8)
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CANTOPEN_CONVPATH = ExtendedErrorCode(CANTOPEN) | (4 << 8)
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CANTOPEN_DIRTYWAL = ExtendedErrorCode(CANTOPEN) | (5 << 8) /* Not Used */
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CANTOPEN_SYMLINK = ExtendedErrorCode(CANTOPEN) | (6 << 8)
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CORRUPT_VTAB = ExtendedErrorCode(CORRUPT) | (1 << 8)
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CORRUPT_SEQUENCE = ExtendedErrorCode(CORRUPT) | (2 << 8)
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CORRUPT_INDEX = ExtendedErrorCode(CORRUPT) | (3 << 8)
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READONLY_RECOVERY = ExtendedErrorCode(READONLY) | (1 << 8)
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READONLY_CANTLOCK = ExtendedErrorCode(READONLY) | (2 << 8)
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READONLY_ROLLBACK = ExtendedErrorCode(READONLY) | (3 << 8)
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READONLY_DBMOVED = ExtendedErrorCode(READONLY) | (4 << 8)
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READONLY_CANTINIT = ExtendedErrorCode(READONLY) | (5 << 8)
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READONLY_DIRECTORY = ExtendedErrorCode(READONLY) | (6 << 8)
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ABORT_ROLLBACK = ExtendedErrorCode(ABORT) | (2 << 8)
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CONSTRAINT_CHECK = ExtendedErrorCode(CONSTRAINT) | (1 << 8)
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CONSTRAINT_COMMITHOOK = ExtendedErrorCode(CONSTRAINT) | (2 << 8)
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CONSTRAINT_FOREIGNKEY = ExtendedErrorCode(CONSTRAINT) | (3 << 8)
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CONSTRAINT_FUNCTION = ExtendedErrorCode(CONSTRAINT) | (4 << 8)
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CONSTRAINT_NOTNULL = ExtendedErrorCode(CONSTRAINT) | (5 << 8)
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CONSTRAINT_PRIMARYKEY = ExtendedErrorCode(CONSTRAINT) | (6 << 8)
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CONSTRAINT_TRIGGER = ExtendedErrorCode(CONSTRAINT) | (7 << 8)
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CONSTRAINT_UNIQUE = ExtendedErrorCode(CONSTRAINT) | (8 << 8)
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CONSTRAINT_VTAB = ExtendedErrorCode(CONSTRAINT) | (9 << 8)
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CONSTRAINT_ROWID = ExtendedErrorCode(CONSTRAINT) | (10 << 8)
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CONSTRAINT_PINNED = ExtendedErrorCode(CONSTRAINT) | (11 << 8)
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CONSTRAINT_DATATYPE = ExtendedErrorCode(CONSTRAINT) | (12 << 8)
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NOTICE_RECOVER_WAL = ExtendedErrorCode(NOTICE) | (1 << 8)
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NOTICE_RECOVER_ROLLBACK = ExtendedErrorCode(NOTICE) | (2 << 8)
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WARNING_AUTOINDEX = ExtendedErrorCode(WARNING) | (1 << 8)
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AUTH_USER = ExtendedErrorCode(AUTH) | (1 << 8)
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ERROR_MISSING_COLLSEQ ExtendedErrorCode = xErrorCode(ERROR) | (1 << 8)
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ERROR_RETRY ExtendedErrorCode = xErrorCode(ERROR) | (2 << 8)
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ERROR_SNAPSHOT ExtendedErrorCode = xErrorCode(ERROR) | (3 << 8)
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IOERR_READ ExtendedErrorCode = xErrorCode(IOERR) | (1 << 8)
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IOERR_SHORT_READ ExtendedErrorCode = xErrorCode(IOERR) | (2 << 8)
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IOERR_WRITE ExtendedErrorCode = xErrorCode(IOERR) | (3 << 8)
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IOERR_FSYNC ExtendedErrorCode = xErrorCode(IOERR) | (4 << 8)
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IOERR_DIR_FSYNC ExtendedErrorCode = xErrorCode(IOERR) | (5 << 8)
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IOERR_TRUNCATE ExtendedErrorCode = xErrorCode(IOERR) | (6 << 8)
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IOERR_FSTAT ExtendedErrorCode = xErrorCode(IOERR) | (7 << 8)
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IOERR_UNLOCK ExtendedErrorCode = xErrorCode(IOERR) | (8 << 8)
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IOERR_RDLOCK ExtendedErrorCode = xErrorCode(IOERR) | (9 << 8)
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IOERR_DELETE ExtendedErrorCode = xErrorCode(IOERR) | (10 << 8)
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IOERR_BLOCKED ExtendedErrorCode = xErrorCode(IOERR) | (11 << 8)
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IOERR_NOMEM ExtendedErrorCode = xErrorCode(IOERR) | (12 << 8)
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IOERR_ACCESS ExtendedErrorCode = xErrorCode(IOERR) | (13 << 8)
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IOERR_CHECKRESERVEDLOCK ExtendedErrorCode = xErrorCode(IOERR) | (14 << 8)
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IOERR_LOCK ExtendedErrorCode = xErrorCode(IOERR) | (15 << 8)
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IOERR_CLOSE ExtendedErrorCode = xErrorCode(IOERR) | (16 << 8)
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IOERR_DIR_CLOSE ExtendedErrorCode = xErrorCode(IOERR) | (17 << 8)
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IOERR_SHMOPEN ExtendedErrorCode = xErrorCode(IOERR) | (18 << 8)
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IOERR_SHMSIZE ExtendedErrorCode = xErrorCode(IOERR) | (19 << 8)
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IOERR_SHMLOCK ExtendedErrorCode = xErrorCode(IOERR) | (20 << 8)
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IOERR_SHMMAP ExtendedErrorCode = xErrorCode(IOERR) | (21 << 8)
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IOERR_SEEK ExtendedErrorCode = xErrorCode(IOERR) | (22 << 8)
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IOERR_DELETE_NOENT ExtendedErrorCode = xErrorCode(IOERR) | (23 << 8)
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IOERR_MMAP ExtendedErrorCode = xErrorCode(IOERR) | (24 << 8)
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IOERR_GETTEMPPATH ExtendedErrorCode = xErrorCode(IOERR) | (25 << 8)
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IOERR_CONVPATH ExtendedErrorCode = xErrorCode(IOERR) | (26 << 8)
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IOERR_VNODE ExtendedErrorCode = xErrorCode(IOERR) | (27 << 8)
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IOERR_AUTH ExtendedErrorCode = xErrorCode(IOERR) | (28 << 8)
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IOERR_BEGIN_ATOMIC ExtendedErrorCode = xErrorCode(IOERR) | (29 << 8)
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IOERR_COMMIT_ATOMIC ExtendedErrorCode = xErrorCode(IOERR) | (30 << 8)
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IOERR_ROLLBACK_ATOMIC ExtendedErrorCode = xErrorCode(IOERR) | (31 << 8)
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IOERR_DATA ExtendedErrorCode = xErrorCode(IOERR) | (32 << 8)
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IOERR_CORRUPTFS ExtendedErrorCode = xErrorCode(IOERR) | (33 << 8)
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LOCKED_SHAREDCACHE ExtendedErrorCode = xErrorCode(LOCKED) | (1 << 8)
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LOCKED_VTAB ExtendedErrorCode = xErrorCode(LOCKED) | (2 << 8)
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BUSY_RECOVERY ExtendedErrorCode = xErrorCode(BUSY) | (1 << 8)
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BUSY_SNAPSHOT ExtendedErrorCode = xErrorCode(BUSY) | (2 << 8)
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BUSY_TIMEOUT ExtendedErrorCode = xErrorCode(BUSY) | (3 << 8)
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CANTOPEN_NOTEMPDIR ExtendedErrorCode = xErrorCode(CANTOPEN) | (1 << 8)
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CANTOPEN_ISDIR ExtendedErrorCode = xErrorCode(CANTOPEN) | (2 << 8)
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CANTOPEN_FULLPATH ExtendedErrorCode = xErrorCode(CANTOPEN) | (3 << 8)
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CANTOPEN_CONVPATH ExtendedErrorCode = xErrorCode(CANTOPEN) | (4 << 8)
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CANTOPEN_DIRTYWAL ExtendedErrorCode = xErrorCode(CANTOPEN) | (5 << 8) /* Not Used */
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CANTOPEN_SYMLINK ExtendedErrorCode = xErrorCode(CANTOPEN) | (6 << 8)
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CORRUPT_VTAB ExtendedErrorCode = xErrorCode(CORRUPT) | (1 << 8)
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CORRUPT_SEQUENCE ExtendedErrorCode = xErrorCode(CORRUPT) | (2 << 8)
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CORRUPT_INDEX ExtendedErrorCode = xErrorCode(CORRUPT) | (3 << 8)
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READONLY_RECOVERY ExtendedErrorCode = xErrorCode(READONLY) | (1 << 8)
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READONLY_CANTLOCK ExtendedErrorCode = xErrorCode(READONLY) | (2 << 8)
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READONLY_ROLLBACK ExtendedErrorCode = xErrorCode(READONLY) | (3 << 8)
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READONLY_DBMOVED ExtendedErrorCode = xErrorCode(READONLY) | (4 << 8)
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READONLY_CANTINIT ExtendedErrorCode = xErrorCode(READONLY) | (5 << 8)
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READONLY_DIRECTORY ExtendedErrorCode = xErrorCode(READONLY) | (6 << 8)
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ABORT_ROLLBACK ExtendedErrorCode = xErrorCode(ABORT) | (2 << 8)
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CONSTRAINT_CHECK ExtendedErrorCode = xErrorCode(CONSTRAINT) | (1 << 8)
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CONSTRAINT_COMMITHOOK ExtendedErrorCode = xErrorCode(CONSTRAINT) | (2 << 8)
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CONSTRAINT_FOREIGNKEY ExtendedErrorCode = xErrorCode(CONSTRAINT) | (3 << 8)
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CONSTRAINT_FUNCTION ExtendedErrorCode = xErrorCode(CONSTRAINT) | (4 << 8)
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CONSTRAINT_NOTNULL ExtendedErrorCode = xErrorCode(CONSTRAINT) | (5 << 8)
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CONSTRAINT_PRIMARYKEY ExtendedErrorCode = xErrorCode(CONSTRAINT) | (6 << 8)
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CONSTRAINT_TRIGGER ExtendedErrorCode = xErrorCode(CONSTRAINT) | (7 << 8)
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CONSTRAINT_UNIQUE ExtendedErrorCode = xErrorCode(CONSTRAINT) | (8 << 8)
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CONSTRAINT_VTAB ExtendedErrorCode = xErrorCode(CONSTRAINT) | (9 << 8)
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CONSTRAINT_ROWID ExtendedErrorCode = xErrorCode(CONSTRAINT) | (10 << 8)
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CONSTRAINT_PINNED ExtendedErrorCode = xErrorCode(CONSTRAINT) | (11 << 8)
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CONSTRAINT_DATATYPE ExtendedErrorCode = xErrorCode(CONSTRAINT) | (12 << 8)
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NOTICE_RECOVER_WAL ExtendedErrorCode = xErrorCode(NOTICE) | (1 << 8)
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NOTICE_RECOVER_ROLLBACK ExtendedErrorCode = xErrorCode(NOTICE) | (2 << 8)
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WARNING_AUTOINDEX ExtendedErrorCode = xErrorCode(WARNING) | (1 << 8)
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AUTH_USER ExtendedErrorCode = xErrorCode(AUTH) | (1 << 8)
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)
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type OpenFlag uint32
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@@ -160,7 +163,7 @@ const (
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ACCESS_READ AccessFlag = 2 /* Unused */
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)
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type PrepareFlag uint
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type PrepareFlag uint32
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const (
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PREPARE_PERSISTENT PrepareFlag = 0x01
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@@ -168,7 +171,7 @@ const (
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PREPARE_NO_VTAB PrepareFlag = 0x04
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)
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type Datatype uint
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type Datatype uint32
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const (
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INTEGER Datatype = 1
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20
vfs_unix.go
20
vfs_unix.go
@@ -12,7 +12,7 @@ func deleteOnClose(f *os.File) {
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_ = os.Remove(f.Name())
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}
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func (l *vfsFileLocker) GetShared() ExtendedErrorCode {
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func (l *vfsFileLocker) GetShared() xErrorCode {
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// A PENDING lock is needed before acquiring a SHARED lock.
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if err := l.fcntlSetLock(&syscall.Flock_t{
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Type: syscall.F_RDLCK,
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@@ -40,7 +40,7 @@ func (l *vfsFileLocker) GetShared() ExtendedErrorCode {
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return rc
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}
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func (l *vfsFileLocker) GetReserved() ExtendedErrorCode {
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func (l *vfsFileLocker) GetReserved() xErrorCode {
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// Acquire the RESERVED lock.
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return l.errorCode(l.fcntlSetLock(&syscall.Flock_t{
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Type: syscall.F_WRLCK,
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@@ -49,7 +49,7 @@ func (l *vfsFileLocker) GetReserved() ExtendedErrorCode {
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}), IOERR_LOCK)
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}
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func (l *vfsFileLocker) GetPending() ExtendedErrorCode {
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func (l *vfsFileLocker) GetPending() xErrorCode {
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// Acquire the PENDING lock.
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return l.errorCode(l.fcntlSetLock(&syscall.Flock_t{
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Type: syscall.F_WRLCK,
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@@ -58,7 +58,7 @@ func (l *vfsFileLocker) GetPending() ExtendedErrorCode {
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}), IOERR_LOCK)
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}
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func (l *vfsFileLocker) GetExclusive() ExtendedErrorCode {
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func (l *vfsFileLocker) GetExclusive() xErrorCode {
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// Acquire the EXCLUSIVE lock.
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return l.errorCode(l.fcntlSetLock(&syscall.Flock_t{
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Type: syscall.F_WRLCK,
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@@ -67,7 +67,7 @@ func (l *vfsFileLocker) GetExclusive() ExtendedErrorCode {
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}), IOERR_LOCK)
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}
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func (l *vfsFileLocker) Downgrade() ExtendedErrorCode {
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func (l *vfsFileLocker) Downgrade() xErrorCode {
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// Downgrade to a SHARED lock.
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if err := l.fcntlSetLock(&syscall.Flock_t{
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Type: syscall.F_RDLCK,
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@@ -93,7 +93,7 @@ func (l *vfsFileLocker) Downgrade() ExtendedErrorCode {
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return _OK
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}
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func (l *vfsFileLocker) Release() ExtendedErrorCode {
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func (l *vfsFileLocker) Release() xErrorCode {
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// Release all locks.
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if err := l.fcntlSetLock(&syscall.Flock_t{
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Type: syscall.F_UNLCK,
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@@ -103,7 +103,7 @@ func (l *vfsFileLocker) Release() ExtendedErrorCode {
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return _OK
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}
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func (l *vfsFileLocker) CheckReserved() (bool, ExtendedErrorCode) {
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func (l *vfsFileLocker) CheckReserved() (bool, xErrorCode) {
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// Test the RESERVED lock.
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lock := syscall.Flock_t{
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Type: syscall.F_RDLCK,
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@@ -142,7 +142,7 @@ func (l *vfsFileLocker) fcntlSetLock(lock *syscall.Flock_t) error {
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return syscall.FcntlFlock(l.file.Fd(), F_SETLK, lock)
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}
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func (*vfsFileLocker) errorCode(err error, def ExtendedErrorCode) ExtendedErrorCode {
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func (*vfsFileLocker) errorCode(err error, def xErrorCode) xErrorCode {
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if err == nil {
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return _OK
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}
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@@ -155,9 +155,9 @@ func (*vfsFileLocker) errorCode(err error, def ExtendedErrorCode) ExtendedErrorC
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case syscall.ENOLCK:
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case syscall.EDEADLK:
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case syscall.ETIMEDOUT:
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return ExtendedErrorCode(BUSY)
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return xErrorCode(BUSY)
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case syscall.EPERM:
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return ExtendedErrorCode(PERM)
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return xErrorCode(PERM)
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}
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}
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return def
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@@ -4,30 +4,30 @@ import "os"
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func deleteOnClose(f *os.File) {}
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func (l *vfsFileLocker) GetShared() ExtendedErrorCode {
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func (l *vfsFileLocker) GetShared() xErrorCode {
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return _OK
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}
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func (l *vfsFileLocker) GetReserved() ExtendedErrorCode {
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func (l *vfsFileLocker) GetReserved() xErrorCode {
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return _OK
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}
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func (l *vfsFileLocker) GetPending() ExtendedErrorCode {
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func (l *vfsFileLocker) GetPending() xErrorCode {
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return _OK
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}
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func (l *vfsFileLocker) GetExclusive() ExtendedErrorCode {
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func (l *vfsFileLocker) GetExclusive() xErrorCode {
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return _OK
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}
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func (l *vfsFileLocker) Downgrade() ExtendedErrorCode {
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func (l *vfsFileLocker) Downgrade() xErrorCode {
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return _OK
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}
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func (l *vfsFileLocker) Release() ExtendedErrorCode {
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func (l *vfsFileLocker) Release() xErrorCode {
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return _OK
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}
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func (l *vfsFileLocker) CheckReserved() (bool, ExtendedErrorCode) {
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func (l *vfsFileLocker) CheckReserved() (bool, xErrorCode) {
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return false, _OK
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}
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