adam
74 lines
3.2 KiB
C
74 lines
3.2 KiB
C
/*
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* sqlite3_private.h
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*/
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#ifndef _SQLITE3_PRIVATE_H
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#define _SQLITE3_PRIVATE_H
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#define SQLITE_LOCKSTATE_OFF 0
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#define SQLITE_LOCKSTATE_ON 1
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#define SQLITE_LOCKSTATE_NOTADB 2
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#define SQLITE_LOCKSTATE_ERROR -1
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#define SQLITE_LOCKSTATE_ANYPID -1
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/*
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** Test a file path for sqlite locks held by a process ID (-1 = any PID).
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** Returns one of the following integer codes:
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**
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** SQLITE_LOCKSTATE_OFF no active sqlite file locks match the specified pid
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** SQLITE_LOCKSTATE_ON active sqlite file locks match the specified pid
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** SQLITE_LOCKSTATE_NOTADB path points to a file that is not an sqlite db file
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** SQLITE_LOCKSTATE_ERROR path was not vaild or was unreadable
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**
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** There is no support for identifying db files encrypted via SEE encryption
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** currently. Zero byte files are tested for sqlite locks, but if no sqlite
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** locks are present then SQLITE_LOCKSTATE_NOTADB is returned.
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*/
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extern int _sqlite3_lockstate(const char *path, pid_t pid);
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/*
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** Test an open database connection for sqlite locks held by a process ID,
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** if a process has an open database connection this will avoid trashing file
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** locks by re-using open file descriptors for the database file and support
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** files (-shm)
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*/
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#define SQLITE_FCNTL_LOCKSTATE_PID 103
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/*
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** Pass the SQLITE_TRUNCATE_DATABASE operation code to sqlite3_file_control()
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** to truncate a database and its associated journal file to zero length. The
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** SQLITE_TRUNCATE_* flags represent optional flags to safely initialize an
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** empty database in the place of the truncated database, the flags are passed
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** into sqlite3_file_control via the fourth argument using a pointer to an integer
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** configured with the ORed flags. If the fourth argument is NULL, the default
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** behavior is applied and the database file is truncated to zero bytes, a rollback
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** journal (if present) is unlinked, a WAL journal (if present) is truncated to zero
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** bytes and the first few bytes of the -shm file is scrambled to trigger existing
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** connections to rebuild the index from the database file contents.
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*/
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#define SQLITE_FCNTL_TRUNCATE_DATABASE 101
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#define SQLITE_TRUNCATE_DATABASE SQLITE_FCNTL_TRUNCATE_DATABASE
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#define SQLITE_TRUNCATE_INITIALIZE_HEADER_MASK (0x7F<<0)
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#define SQLITE_TRUNCATE_JOURNALMODE_WAL (0x1<<0)
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#define SQLITE_TRUNCATE_AUTOVACUUM_MASK (0x3<<2)
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#define SQLITE_TRUNCATE_AUTOVACUUM_OFF (0x1<<2)
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#define SQLITE_TRUNCATE_AUTOVACUUM_FULL (0x2<<2)
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#define SQLITE_TRUNCATE_AUTOVACUUM_INCREMENTAL (0x3<<2)
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#define SQLITE_TRUNCATE_PAGESIZE_MASK (0x7<<4)
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#define SQLITE_TRUNCATE_PAGESIZE_1024 (0x1<<4)
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#define SQLITE_TRUNCATE_PAGESIZE_2048 (0x2<<4)
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#define SQLITE_TRUNCATE_PAGESIZE_4096 (0x3<<4)
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#define SQLITE_TRUNCATE_PAGESIZE_8192 (0x4<<4)
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#define SQLITE_TRUNCATE_FORCE (0x1<<7)
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/*
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** Pass the SQLITE_REPLACE_DATABASE operation code to sqlite3_file_control()
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** and a sqlite3 pointer to another open database file to safely copy the
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** contents of that database file into the receiving database.
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*/
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#define SQLITE_FCNTL_REPLACE_DATABASE 102
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#define SQLITE_REPLACE_DATABASE SQLITE_FCNTL_REPLACE_DATABASE
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#endif
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