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add ability to open with specified vfs

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This commit is contained in:
Joshua C. Randall 2019-06-17 10:42:54 +01:00
parent 584d94dcf6
commit 1ae02726cf
2 changed files with 48 additions and 5 deletions
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9
src/inner_connection.rs
View File

@ -57,7 +57,7 @@ impl InnerConnection {
}
}
pub fn open_with_flags(c_path: &CString, flags: OpenFlags) -> Result<InnerConnection> {
pub fn open_with_flags(c_path: &CString, flags: OpenFlags, vfs: Option(&CString)) -> Result<InnerConnection> {
#[cfg(not(feature = "bundled"))]
ensure_valid_sqlite_version();
ensure_safe_sqlite_threading_mode()?;
@ -77,9 +77,14 @@ impl InnerConnection {
));
}
z_vfs = match(vfs) {
Some(c_vfs) => c_vfs.as_ptr(),
None => ptr::null()
}
unsafe {
let mut db: *mut ffi::sqlite3 = mem::uninitialized();
let r = ffi::sqlite3_open_v2(c_path.as_ptr(), &mut db, flags.bits(), ptr::null());
let r = ffi::sqlite3_open_v2(c_path.as_ptr(), &mut db, flags.bits(), z_vfs);
if r != ffi::SQLITE_OK {
let e = if db.is_null() {
error_from_sqlite_code(r, None)

44
src/lib.rs
View File

@ -342,7 +342,7 @@ impl Connection {
/// string or if the underlying SQLite open call fails.
pub fn open<P: AsRef<Path>>(path: P) -> Result<Connection> {
let flags = OpenFlags::default();
Connection::open_with_flags(path, flags)
Connection::open_with_flags(path, flags, None)
}
/// Open a new connection to an in-memory SQLite database.
@ -366,7 +366,26 @@ impl Connection {
/// string or if the underlying SQLite open call fails.
pub fn open_with_flags<P: AsRef<Path>>(path: P, flags: OpenFlags) -> Result<Connection> {
let c_path = path_to_cstring(path.as_ref())?;
InnerConnection::open_with_flags(&c_path, flags).map(|db| Connection {
InnerConnection::open_with_flags(&c_path, flags, None).map(|db| Connection {
db: RefCell::new(db),
cache: StatementCache::with_capacity(STATEMENT_CACHE_DEFAULT_CAPACITY),
path: Some(path.as_ref().to_path_buf()),
})
}
/// Open a new connection to a SQLite database using the specific flags and vfs name.
///
/// [Database Connection](http://www.sqlite.org/c3ref/open.html) for a description of valid
/// flag combinations.
///
/// # Failure
///
/// Will return `Err` if either `path` or `vfs` cannot be converted to a C-compatible
/// string or if the underlying SQLite open call fails.
pub fn open_with_flags_and_vfs<P: AsRef<Path>>(path: P, flags: OpenFlags, vfs: &str) -> Result<Connection> {
let c_path = path_to_cstring(path.as_ref())?;
let c_vfs = str_to_cstring(vfs)?;
InnerConnection::open_with_flags(&c_path, flags, Some(c_vfs)).map(|db| Connection {
db: RefCell::new(db),
cache: StatementCache::with_capacity(STATEMENT_CACHE_DEFAULT_CAPACITY),
path: Some(path.as_ref().to_path_buf()),
@ -383,7 +402,26 @@ impl Connection {
/// Will return `Err` if the underlying SQLite open call fails.
pub fn open_in_memory_with_flags(flags: OpenFlags) -> Result<Connection> {
let c_memory = str_to_cstring(":memory:")?;
InnerConnection::open_with_flags(&c_memory, flags).map(|db| Connection {
InnerConnection::open_with_flags(&c_memory, flags, None).map(|db| Connection {
db: RefCell::new(db),
cache: StatementCache::with_capacity(STATEMENT_CACHE_DEFAULT_CAPACITY),
path: None,
})
}
/// Open a new connection to an in-memory SQLite database using the specific flags and vfs name.
///
/// [Database Connection](http://www.sqlite.org/c3ref/open.html) for a description of valid
/// flag combinations.
///
/// # Failure
///
/// Will return `Err` if vfs` cannot be converted to a C-compatible
/// string or if the underlying SQLite open call fails.
pub fn open_in_memory_with_flags_and_vfs(flags: OpenFlags, vfs: &str) -> Result<Connection> {
let c_memory = str_to_cstring(":memory:")?;
let c_vfs = str_to_cstring(vfs)?;
InnerConnection::open_with_flags(&c_memory, flags, Some(c_vfs)).map(|db| Connection {
db: RefCell::new(db),
cache: StatementCache::with_capacity(STATEMENT_CACHE_DEFAULT_CAPACITY),
path: None,