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Merge remote-tracking branch 'jgallagher/master' into vtab

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This commit is contained in:
gwenn
2018-04-30 22:02:14 +02:00
parent db87de4086 d51b24fb5f
commit 9c5c9e3c7e
20 changed files with 19079 additions and 9958 deletions
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11
src/blob.rs
View File

@@ -50,7 +50,6 @@
//! ```
use std::io;
use std::cmp::min;
use std::mem;
use std::ptr;
use super::ffi;
@@ -65,7 +64,7 @@ pub struct Blob<'conn> {
}
impl Connection {
/// Open a handle to the BLOB located in `row`, `column`, `table` in database `db`.
/// Open a handle to the BLOB located in `row_id`, `column`, `table` in database `db`.
///
/// # Failure
///
@@ -75,7 +74,7 @@ impl Connection {
db: DatabaseName,
table: &str,
column: &str,
row: i64,
row_id: i64,
read_only: bool)
-> Result<Blob<'a>> {
let mut c = self.db.borrow_mut();
@@ -88,7 +87,7 @@ impl Connection {
db.as_ptr(),
table.as_ptr(),
column.as_ptr(),
row,
row_id,
if read_only { 0 } else { 1 },
&mut blob)
};
@@ -156,7 +155,7 @@ impl<'conn> io::Read for Blob<'conn> {
return Ok(0);
}
let rc =
unsafe { ffi::sqlite3_blob_read(self.blob, mem::transmute(buf.as_ptr()), n, self.pos) };
unsafe { ffi::sqlite3_blob_read(self.blob, buf.as_ptr() as *mut _, n, self.pos) };
self.conn
.decode_result(rc)
.map(|_| {
@@ -185,7 +184,7 @@ impl<'conn> io::Write for Blob<'conn> {
return Ok(0);
}
let rc = unsafe {
ffi::sqlite3_blob_write(self.blob, mem::transmute(buf.as_ptr()), n, self.pos)
ffi::sqlite3_blob_write(self.blob, buf.as_ptr() as *mut _, n, self.pos)
};
self.conn
.decode_result(rc)

28
src/cache.rs
View File

@@ -46,6 +46,7 @@ impl Connection {
self.cache.set_capacity(capacity)
}
/// Remove/finalize all prepared statements currently in the cache.
pub fn flush_prepared_statement_cache(&self) {
self.cache.flush()
}
@@ -124,7 +125,7 @@ impl StatementCache {
sql: &str)
-> Result<CachedStatement<'conn>> {
let mut cache = self.0.borrow_mut();
let stmt = match cache.remove(sql) {
let stmt = match cache.remove(sql.trim()) {
Some(raw_stmt) => Ok(Statement::new(conn, raw_stmt)),
None => conn.prepare(sql),
};
@@ -135,7 +136,7 @@ impl StatementCache {
fn cache_stmt(&self, stmt: RawStatement) {
let mut cache = self.0.borrow_mut();
stmt.clear_bindings();
let sql = String::from_utf8_lossy(stmt.sql().to_bytes()).to_string();
let sql = String::from_utf8_lossy(stmt.sql().to_bytes()).trim().to_string();
cache.insert(sql, stmt);
}
@@ -285,4 +286,27 @@ mod test {
conn.close().expect("connection not closed");
}
#[test]
fn test_cache_key() {
let db = Connection::open_in_memory().unwrap();
let cache = &db.cache;
assert_eq!(0, cache.len());
//let sql = " PRAGMA schema_version; -- comment";
let sql = "PRAGMA schema_version; ";
{
let mut stmt = db.prepare_cached(sql).unwrap();
assert_eq!(0, cache.len());
assert_eq!(0, stmt.query_row(&[], |r| r.get::<i32, i64>(0)).unwrap());
}
assert_eq!(1, cache.len());
{
let mut stmt = db.prepare_cached(sql).unwrap();
assert_eq!(0, cache.len());
assert_eq!(0, stmt.query_row(&[], |r| r.get::<i32, i64>(0)).unwrap());
}
assert_eq!(1, cache.len());
}
}

4
src/functions.rs
View File

@@ -443,7 +443,7 @@ impl InnerConnection {
}
};
if (*pac).is_null() {
if (*pac as *mut A).is_null() {
*pac = Box::into_raw(Box::new((*boxed_aggr).init()));
}
@@ -470,7 +470,7 @@ impl InnerConnection {
// sqlite3_aggregate_context(C,N) so that no pointless memory allocations occur.
let a: Option<A> = match aggregate_context(ctx, 0) {
Some(pac) => {
if (*pac).is_null() {
if (*pac as *mut A).is_null() {
None
} else {
let a = Box::from_raw(*pac);

309
src/hooks.rs Normal file
View File

@@ -0,0 +1,309 @@
//! Commit, Data Change and Rollback Notification Callbacks
#![allow(non_camel_case_types)]
use std::mem;
use std::ptr;
use std::os::raw::{c_int, c_char, c_void};
use ffi;
use {Connection, InnerConnection};
/// Authorizer Action Codes
#[derive(Debug, PartialEq)]
pub enum Action {
UNKNOWN = -1,
SQLITE_CREATE_INDEX = ffi::SQLITE_CREATE_INDEX as isize,
SQLITE_CREATE_TABLE = ffi::SQLITE_CREATE_TABLE as isize,
SQLITE_CREATE_TEMP_INDEX = ffi::SQLITE_CREATE_TEMP_INDEX as isize,
SQLITE_CREATE_TEMP_TABLE = ffi::SQLITE_CREATE_TEMP_TABLE as isize,
SQLITE_CREATE_TEMP_TRIGGER = ffi::SQLITE_CREATE_TEMP_TRIGGER as isize,
SQLITE_CREATE_TEMP_VIEW = ffi::SQLITE_CREATE_TEMP_VIEW as isize,
SQLITE_CREATE_TRIGGER = ffi::SQLITE_CREATE_TRIGGER as isize,
SQLITE_CREATE_VIEW = ffi::SQLITE_CREATE_VIEW as isize,
SQLITE_DELETE = ffi::SQLITE_DELETE as isize,
SQLITE_DROP_INDEX = ffi::SQLITE_DROP_INDEX as isize,
SQLITE_DROP_TABLE = ffi::SQLITE_DROP_TABLE as isize,
SQLITE_DROP_TEMP_INDEX = ffi::SQLITE_DROP_TEMP_INDEX as isize,
SQLITE_DROP_TEMP_TABLE = ffi::SQLITE_DROP_TEMP_TABLE as isize,
SQLITE_DROP_TEMP_TRIGGER = ffi::SQLITE_DROP_TEMP_TRIGGER as isize,
SQLITE_DROP_TEMP_VIEW = ffi::SQLITE_DROP_TEMP_VIEW as isize,
SQLITE_DROP_TRIGGER = ffi::SQLITE_DROP_TRIGGER as isize,
SQLITE_DROP_VIEW = ffi::SQLITE_DROP_VIEW as isize,
SQLITE_INSERT = ffi::SQLITE_INSERT as isize,
SQLITE_PRAGMA = ffi::SQLITE_PRAGMA as isize,
SQLITE_READ = ffi::SQLITE_READ as isize,
SQLITE_SELECT = ffi::SQLITE_SELECT as isize,
SQLITE_TRANSACTION = ffi::SQLITE_TRANSACTION as isize,
SQLITE_UPDATE = ffi::SQLITE_UPDATE as isize,
SQLITE_ATTACH = ffi::SQLITE_ATTACH as isize,
SQLITE_DETACH = ffi::SQLITE_DETACH as isize,
SQLITE_ALTER_TABLE = ffi::SQLITE_ALTER_TABLE as isize,
SQLITE_REINDEX = ffi::SQLITE_REINDEX as isize,
SQLITE_ANALYZE = ffi::SQLITE_ANALYZE as isize,
SQLITE_CREATE_VTABLE = ffi::SQLITE_CREATE_VTABLE as isize,
SQLITE_DROP_VTABLE = ffi::SQLITE_DROP_VTABLE as isize,
SQLITE_FUNCTION = ffi::SQLITE_FUNCTION as isize,
SQLITE_SAVEPOINT = ffi::SQLITE_SAVEPOINT as isize,
SQLITE_COPY = ffi::SQLITE_COPY as isize,
SQLITE_RECURSIVE = 33,
}
impl From<i32> for Action {
fn from(code: i32) -> Action {
match code {
ffi::SQLITE_CREATE_INDEX => Action::SQLITE_CREATE_INDEX,
ffi::SQLITE_CREATE_TABLE => Action::SQLITE_CREATE_TABLE,
ffi::SQLITE_CREATE_TEMP_INDEX => Action::SQLITE_CREATE_TEMP_INDEX,
ffi::SQLITE_CREATE_TEMP_TABLE => Action::SQLITE_CREATE_TEMP_TABLE,
ffi::SQLITE_CREATE_TEMP_TRIGGER => Action::SQLITE_CREATE_TEMP_TRIGGER,
ffi::SQLITE_CREATE_TEMP_VIEW => Action::SQLITE_CREATE_TEMP_VIEW,
ffi::SQLITE_CREATE_TRIGGER => Action::SQLITE_CREATE_TRIGGER,
ffi::SQLITE_CREATE_VIEW => Action::SQLITE_CREATE_VIEW,
ffi::SQLITE_DELETE => Action::SQLITE_DELETE,
ffi::SQLITE_DROP_INDEX => Action::SQLITE_DROP_INDEX,
ffi::SQLITE_DROP_TABLE => Action::SQLITE_DROP_TABLE,
ffi::SQLITE_DROP_TEMP_INDEX => Action::SQLITE_DROP_TEMP_INDEX,
ffi::SQLITE_DROP_TEMP_TABLE => Action::SQLITE_DROP_TEMP_TABLE,
ffi::SQLITE_DROP_TEMP_TRIGGER => Action::SQLITE_DROP_TEMP_TRIGGER,
ffi::SQLITE_DROP_TEMP_VIEW => Action::SQLITE_DROP_TEMP_VIEW,
ffi::SQLITE_DROP_TRIGGER => Action::SQLITE_DROP_TRIGGER,
ffi::SQLITE_DROP_VIEW => Action::SQLITE_DROP_VIEW,
ffi::SQLITE_INSERT => Action::SQLITE_INSERT,
ffi::SQLITE_PRAGMA => Action::SQLITE_PRAGMA,
ffi::SQLITE_READ => Action::SQLITE_READ,
ffi::SQLITE_SELECT => Action::SQLITE_SELECT,
ffi::SQLITE_TRANSACTION => Action::SQLITE_TRANSACTION,
ffi::SQLITE_UPDATE => Action::SQLITE_UPDATE,
ffi::SQLITE_ATTACH => Action::SQLITE_ATTACH,
ffi::SQLITE_DETACH => Action::SQLITE_DETACH,
ffi::SQLITE_ALTER_TABLE => Action::SQLITE_ALTER_TABLE,
ffi::SQLITE_REINDEX => Action::SQLITE_REINDEX,
ffi::SQLITE_ANALYZE => Action::SQLITE_ANALYZE,
ffi::SQLITE_CREATE_VTABLE => Action::SQLITE_CREATE_VTABLE,
ffi::SQLITE_DROP_VTABLE => Action::SQLITE_DROP_VTABLE,
ffi::SQLITE_FUNCTION => Action::SQLITE_FUNCTION,
ffi::SQLITE_SAVEPOINT => Action::SQLITE_SAVEPOINT,
ffi::SQLITE_COPY => Action::SQLITE_COPY,
33 => Action::SQLITE_RECURSIVE,
_ => Action::UNKNOWN,
}
}
}
impl Connection {
/// Register a callback function to be invoked whenever a transaction is committed.
///
/// The callback returns `true` to rollback.
pub fn commit_hook<F>(&self, hook: F)
where F: FnMut() -> bool
{
self.db.borrow_mut().commit_hook(hook);
}
/// Register a callback function to be invoked whenever a transaction is committed.
///
/// The callback returns `true` to rollback.
pub fn rollback_hook<F>(&self, hook: F)
where F: FnMut()
{
self.db.borrow_mut().rollback_hook(hook);
}
/// Register a callback function to be invoked whenever a row is updated,
/// inserted or deleted in a rowid table.
///
/// The callback parameters are:
///
/// - the type of database update (SQLITE_INSERT, SQLITE_UPDATE or SQLITE_DELETE),
/// - the name of the database ("main", "temp", ...),
/// - the name of the table that is updated,
/// - the ROWID of the row that is updated.
pub fn update_hook<F>(&self, hook: F)
where F: FnMut(Action, &str, &str, i64)
{
self.db.borrow_mut().update_hook(hook);
}
/// Remove hook installed by `update_hook`.
pub fn remove_update_hook(&self) {
self.db.borrow_mut().remove_update_hook();
}
/// Remove hook installed by `commit_hook`.
pub fn remove_commit_hook(&self) {
self.db.borrow_mut().remove_commit_hook();
}
/// Remove hook installed by `rollback_hook`.
pub fn remove_rollback_hook(&self) {
self.db.borrow_mut().remove_rollback_hook();
}
}
impl InnerConnection {
pub fn remove_hooks(&mut self) {
self.remove_update_hook();
self.remove_commit_hook();
self.remove_rollback_hook();
}
fn commit_hook<F>(&self, hook: F)
where F: FnMut() -> bool
{
unsafe extern "C" fn call_boxed_closure<F>(p_arg: *mut c_void) -> c_int
where F: FnMut() -> bool
{
let boxed_hook: *mut F = mem::transmute(p_arg);
assert!(!boxed_hook.is_null(),
"Internal error - null function pointer");
if (*boxed_hook)() { 1 } else { 0 }
}
let previous_hook = {
let boxed_hook: *mut F = Box::into_raw(Box::new(hook));
unsafe {
ffi::sqlite3_commit_hook(self.db(),
Some(call_boxed_closure::<F>),
boxed_hook as *mut _)
}
};
free_boxed_hook(previous_hook);
}
fn rollback_hook<F>(&self, hook: F)
where F: FnMut()
{
unsafe extern "C" fn call_boxed_closure<F>(p_arg: *mut c_void)
where F: FnMut()
{
let boxed_hook: *mut F = mem::transmute(p_arg);
assert!(!boxed_hook.is_null(),
"Internal error - null function pointer");
(*boxed_hook)();
}
let previous_hook = {
let boxed_hook: *mut F = Box::into_raw(Box::new(hook));
unsafe {
ffi::sqlite3_rollback_hook(self.db(),
Some(call_boxed_closure::<F>),
boxed_hook as *mut _)
}
};
free_boxed_hook(previous_hook);
}
fn update_hook<F>(&mut self, hook: F)
where F: FnMut(Action, &str, &str, i64)
{
unsafe extern "C" fn call_boxed_closure<F>(p_arg: *mut c_void,
action_code: c_int,
db_str: *const c_char,
tbl_str: *const c_char,
row_id: i64)
where F: FnMut(Action, &str, &str, i64)
{
use std::ffi::CStr;
use std::str;
let boxed_hook: *mut F = mem::transmute(p_arg);
assert!(!boxed_hook.is_null(),
"Internal error - null function pointer");
let action = Action::from(action_code);
let db_name = {
let c_slice = CStr::from_ptr(db_str).to_bytes();
str::from_utf8_unchecked(c_slice)
};
let tbl_name = {
let c_slice = CStr::from_ptr(tbl_str).to_bytes();
str::from_utf8_unchecked(c_slice)
};
(*boxed_hook)(action, db_name, tbl_name, row_id);
}
let previous_hook = {
let boxed_hook: *mut F = Box::into_raw(Box::new(hook));
unsafe {
ffi::sqlite3_update_hook(self.db(),
Some(call_boxed_closure::<F>),
boxed_hook as *mut _)
}
};
free_boxed_hook(previous_hook);
}
fn remove_update_hook(&mut self) {
let previous_hook = unsafe { ffi::sqlite3_update_hook(self.db(), None, ptr::null_mut()) };
free_boxed_hook(previous_hook);
}
fn remove_commit_hook(&mut self) {
let previous_hook = unsafe { ffi::sqlite3_commit_hook(self.db(), None, ptr::null_mut()) };
free_boxed_hook(previous_hook);
}
fn remove_rollback_hook(&mut self) {
let previous_hook = unsafe { ffi::sqlite3_rollback_hook(self.db(), None, ptr::null_mut()) };
free_boxed_hook(previous_hook);
}
}
fn free_boxed_hook(hook: *mut c_void) {
if !hook.is_null() {
// TODO make sure that size_of::<*mut F>() is always equal to size_of::<*mut c_void>()
let _: Box<*mut c_void> = unsafe { Box::from_raw(hook as *mut _) };
}
}
#[cfg(test)]
mod test {
use super::Action;
use Connection;
#[test]
fn test_commit_hook() {
let db = Connection::open_in_memory().unwrap();
let mut called = false;
db.commit_hook(|| {
called = true;
false
});
db.execute_batch("BEGIN; CREATE TABLE foo (t TEXT); COMMIT;")
.unwrap();
assert!(called);
}
#[test]
fn test_rollback_hook() {
let db = Connection::open_in_memory().unwrap();
let mut called = false;
db.rollback_hook(|| { called = true; });
db.execute_batch("BEGIN; CREATE TABLE foo (t TEXT); ROLLBACK;")
.unwrap();
assert!(called);
}
#[test]
fn test_update_hook() {
let db = Connection::open_in_memory().unwrap();
let mut called = false;
db.update_hook(|action, db, tbl, row_id| {
assert_eq!(Action::SQLITE_INSERT, action);
assert_eq!("main", db);
assert_eq!("foo", tbl);
assert_eq!(1, row_id);
called = true;
});
db.execute_batch("CREATE TABLE foo (t TEXT)").unwrap();
db.execute_batch("INSERT INTO foo VALUES ('lisa')").unwrap();
assert!(called);
}
}

14
src/lib.rs
View File

@@ -121,6 +121,10 @@ pub mod functions;
pub mod blob;
#[cfg(feature = "limits")]
pub mod limits;
#[cfg(feature = "hooks")]
mod hooks;
#[cfg(feature = "hooks")]
pub use hooks::*;
#[cfg(all(feature = "vtab", feature = "functions"))]
pub mod vtab;
@@ -197,7 +201,7 @@ impl Connection {
/// Open a new connection to a SQLite database.
///
/// `Connection::open(path)` is equivalent to `Connection::open_with_flags(path,
/// SQLITE_OPEN_READ_WRITE | SQLITE_OPEN_CREATE)`.
/// OpenFlags::SQLITE_OPEN_READ_WRITE | OpenFlags::SQLITE_OPEN_CREATE)`.
///
/// # Failure
///
@@ -794,6 +798,10 @@ impl InnerConnection {
}
fn close(&mut self) -> Result<()> {
if self.db.is_null() {
return Ok(());
}
self.remove_hooks();
unsafe {
let r = ffi::sqlite3_close(self.db());
let r = self.decode_result(r);
@@ -871,6 +879,10 @@ impl InnerConnection {
fn changes(&mut self) -> c_int {
unsafe { ffi::sqlite3_changes(self.db()) }
}
#[cfg(not(feature = "hooks"))]
fn remove_hooks(&mut self) {
}
}
impl Drop for InnerConnection {

28
src/statement.rs
View File

@@ -45,7 +45,7 @@ impl<'conn> Statement<'conn> {
let bytes = name.as_bytes();
let n = self.column_count();
for i in 0..n {
if bytes == self.stmt.column_name(i).to_bytes() {
if bytes.eq_ignore_ascii_case(self.stmt.column_name(i).to_bytes()) {
return Ok(i);
}
}
@@ -785,4 +785,30 @@ mod test {
let y: Result<i64> = stmt.query_row(&[&1i32], |r| r.get(0));
assert_eq!(3i64, y.unwrap());
}
#[test]
fn test_query_by_column_name() {
let db = Connection::open_in_memory().unwrap();
let sql = "BEGIN;
CREATE TABLE foo(x INTEGER, y INTEGER);
INSERT INTO foo VALUES(1, 3);
END;";
db.execute_batch(sql).unwrap();
let mut stmt = db.prepare("SELECT y FROM foo").unwrap();
let y: Result<i64> = stmt.query_row(&[], |r| r.get("y"));
assert_eq!(3i64, y.unwrap());
}
#[test]
fn test_query_by_column_name_ignore_case() {
let db = Connection::open_in_memory().unwrap();
let sql = "BEGIN;
CREATE TABLE foo(x INTEGER, y INTEGER);
INSERT INTO foo VALUES(1, 3);
END;";
db.execute_batch(sql).unwrap();
let mut stmt = db.prepare("SELECT y as Y FROM foo").unwrap();
let y: Result<i64> = stmt.query_row(&[], |r| r.get("y"));
assert_eq!(3i64, y.unwrap());
}
}

8
src/transaction.rs
View File

@@ -26,6 +26,9 @@ pub enum DropBehavior {
/// Do not commit or roll back changes - this will leave the transaction or savepoint
/// open, so should be used with care.
Ignore,
/// Panic. Used to enforce intentional behavior during development.
Panic,
}
/// Old name for `Transaction`. `SqliteTransaction` is deprecated.
@@ -94,6 +97,9 @@ pub struct Savepoint<'conn> {
impl<'conn> Transaction<'conn> {
/// Begin a new transaction. Cannot be nested; see `savepoint` for nested transactions.
// Even though we don't mutate the connection, we take a `&mut Connection`
// so as to prevent nested or concurrent transactions on the same
// connection.
pub fn new(conn: &mut Connection, behavior: TransactionBehavior) -> Result<Transaction> {
let query = match behavior {
TransactionBehavior::Deferred => "BEGIN DEFERRED",
@@ -192,6 +198,7 @@ impl<'conn> Transaction<'conn> {
DropBehavior::Commit => self.commit_(),
DropBehavior::Rollback => self.rollback_(),
DropBehavior::Ignore => Ok(()),
DropBehavior::Panic => panic!("Transaction dropped unexpectedly."),
}
}
}
@@ -303,6 +310,7 @@ impl<'conn> Savepoint<'conn> {
DropBehavior::Commit => self.commit_(),
DropBehavior::Rollback => self.rollback(),
DropBehavior::Ignore => Ok(()),
DropBehavior::Panic => panic!("Savepoint dropped unexpectedly."),
}
}
}

13
src/types/mod.rs
View File

@@ -10,12 +10,13 @@
//! * Strings (`String` and `&str`)
//! * Blobs (`Vec<u8>` and `&[u8]`)
//!
//! Additionally, because it is such a common data type, implementations are provided for
//! `time::Timespec` that use a string for storage (using the same format string,
//! `"%Y-%m-%d %H:%M:%S"`, as SQLite's builtin
//! [datetime](https://www.sqlite.org/lang_datefunc.html) function. Note that this storage
//! truncates timespecs to the nearest second. If you want different storage for timespecs, you can
//! use a newtype. For example, to store timespecs as `f64`s:
//! Additionally, because it is such a common data type, implementations are
//! provided for `time::Timespec` that use the RFC 3339 date/time format,
//! `"%Y-%m-%dT%H:%M:%S.%fZ"`, to store time values as strings. These values
//! can be parsed by SQLite's builtin
//! [datetime](https://www.sqlite.org/lang_datefunc.html) functions. If you
//! want different storage for timespecs, you can use a newtype. For example, to
//! store timespecs as `f64`s:
//!
//! ```rust
//! extern crate rusqlite;

13
src/types/time.rs
View File

@@ -3,7 +3,8 @@ extern crate time;
use Result;
use types::{FromSql, FromSqlError, FromSqlResult, ToSql, ToSqlOutput, ValueRef};
const SQLITE_DATETIME_FMT: &str = "%Y-%m-%d %H:%M:%S:%f %Z";
const SQLITE_DATETIME_FMT: &str = "%Y-%m-%dT%H:%M:%S.%fZ";
const SQLITE_DATETIME_FMT_LEGACY: &str = "%Y-%m-%d %H:%M:%S:%f %Z";
impl ToSql for time::Timespec {
fn to_sql(&self) -> Result<ToSqlOutput> {
@@ -19,10 +20,12 @@ impl FromSql for time::Timespec {
fn column_result(value: ValueRef) -> FromSqlResult<Self> {
value
.as_str()
.and_then(|s| match time::strptime(s, SQLITE_DATETIME_FMT) {
Ok(tm) => Ok(tm.to_timespec()),
Err(err) => Err(FromSqlError::Other(Box::new(err))),
})
.and_then(|s| {
time::strptime(s, SQLITE_DATETIME_FMT)
.or_else(|err| {
time::strptime(s, SQLITE_DATETIME_FMT_LEGACY)
.or(Err(FromSqlError::Other(Box::new(err))))})})
.map(|tm| tm.to_timespec())
}
}