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Unlock notification

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Test added
This commit is contained in:
gwenn 2017-09-22 23:27:05 +02:00
parent 154a70d41b
commit 5fd76aa54b
2 changed files with 35 additions and 2 deletions
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4
src/raw_statement.rs
View File

@ -35,8 +35,8 @@ impl RawStatement {
loop {
rc = unsafe { ffi::sqlite3_step(self.0) };
if rc == ffi::SQLITE_LOCKED {
if unsafe { ffi::sqlite3_extended_errcode(self.1) } !=
ffi::SQLITE_LOCKED_SHAREDCACHE
if unsafe { ffi::sqlite3_extended_errcode(self.1) }
!= ffi::SQLITE_LOCKED_SHAREDCACHE
{
break;
}

33
src/unlock_notify.rs
View File

@ -82,3 +82,36 @@ pub fn wait_for_unlock_notify(db: *mut ffi::sqlite3) -> c_int {
pub fn wait_for_unlock_notify(_db: *mut ffi::sqlite3) -> c_int {
unreachable!()
}
#[cfg(feature = "unlock_notify")]
#[cfg(test)]
mod test {
use std::sync::mpsc::sync_channel;
use std::thread;
use std::time;
use {Connection, Result, Transaction, TransactionBehavior, SQLITE_OPEN_READ_WRITE,
SQLITE_OPEN_URI};
#[test]
fn test_unlock_notify() {
let url = "file::memory:?cache=shared";
let flags = SQLITE_OPEN_READ_WRITE | SQLITE_OPEN_URI;
let db1 = Connection::open_with_flags(url, flags).unwrap();
db1.execute_batch("CREATE TABLE foo (x)").unwrap();
let (sender, receiver) = sync_channel(0);
let sender2 = sender.clone();
let child = thread::spawn(move || {
let mut db2 = Connection::open_with_flags(url, flags).unwrap();
let tx2 = Transaction::new(&mut db2, TransactionBehavior::Immediate).unwrap();
tx2.execute_batch("INSERT INTO foo VALUES (42)").unwrap();
sender2.send(1).unwrap();
let ten_millis = time::Duration::from_millis(10);
thread::sleep(ten_millis);
tx2.commit().unwrap();
});
assert_eq!(receiver.recv().unwrap(), 1);
let the_answer: Result<i64> = db1.query_row("SELECT x FROM foo", &[], |r| r.get(0));
assert_eq!(42i64, the_answer.unwrap());
child.join().unwrap();
}
}