mirror of
https://github.com/aseprite/aseprite.git
synced 2025-04-09 18:44:46 +00:00
d6f2bec3fe
Added a new "weak lock" concept to RWLock/Document class. The background thread that saves data recovery information can obtain this "weak lock" which can be unlocked by the UI thread in any moment (i.e. when the user needs the document immediately for UI.)
79 lines
1.8 KiB
C++
79 lines
1.8 KiB
C++
// Aseprite
|
|
// Copyright (C) 2001-2016 David Capello
|
|
//
|
|
// This program is distributed under the terms of
|
|
// the End-User License Agreement for Aseprite.
|
|
|
|
#include "tests/test.h"
|
|
|
|
#include "app/rw_lock.h"
|
|
|
|
using namespace app;
|
|
|
|
TEST(RWLock, MultipleReaders)
|
|
{
|
|
RWLock a;
|
|
EXPECT_TRUE(a.lock(RWLock::ReadLock, 0));
|
|
EXPECT_TRUE(a.lock(RWLock::ReadLock, 0));
|
|
EXPECT_TRUE(a.lock(RWLock::ReadLock, 0));
|
|
EXPECT_TRUE(a.lock(RWLock::ReadLock, 0));
|
|
EXPECT_FALSE(a.lock(RWLock::WriteLock, 0));
|
|
a.unlock();
|
|
a.unlock();
|
|
a.unlock();
|
|
a.unlock();
|
|
}
|
|
|
|
TEST(RWLock, OneWriter)
|
|
{
|
|
RWLock a;
|
|
|
|
EXPECT_TRUE(a.lock(RWLock::WriteLock, 0));
|
|
EXPECT_FALSE(a.lock(RWLock::ReadLock, 0));
|
|
a.unlock();
|
|
|
|
EXPECT_TRUE(a.lock(RWLock::ReadLock, 0));
|
|
EXPECT_FALSE(a.lock(RWLock::WriteLock, 0));
|
|
a.unlock();
|
|
|
|
EXPECT_TRUE(a.lock(RWLock::ReadLock, 0));
|
|
EXPECT_TRUE(a.lock(RWLock::ReadLock, 0));
|
|
EXPECT_FALSE(a.lock(RWLock::WriteLock, 0));
|
|
a.unlock();
|
|
EXPECT_FALSE(a.lock(RWLock::WriteLock, 0));
|
|
a.unlock();
|
|
EXPECT_TRUE(a.lock(RWLock::WriteLock, 0));
|
|
EXPECT_FALSE(a.lock(RWLock::WriteLock, 0));
|
|
a.unlock();
|
|
}
|
|
|
|
TEST(RWLock, UpgradeToWrite)
|
|
{
|
|
RWLock a;
|
|
|
|
EXPECT_TRUE(a.lock(RWLock::ReadLock, 0));
|
|
EXPECT_FALSE(a.lock(RWLock::WriteLock, 0));
|
|
EXPECT_TRUE(a.upgradeToWrite(0));
|
|
EXPECT_FALSE(a.lock(RWLock::ReadLock, 0));
|
|
EXPECT_FALSE(a.lock(RWLock::WriteLock, 0));
|
|
a.downgradeToRead();
|
|
a.unlock();
|
|
}
|
|
|
|
TEST(RWLock, WeakLock)
|
|
{
|
|
RWLock a;
|
|
RWLock::WeakLock flag = RWLock::WeakUnlocked;
|
|
|
|
EXPECT_TRUE(a.weakLock(&flag));
|
|
EXPECT_EQ(RWLock::WeakLocked, flag);
|
|
EXPECT_FALSE(a.lock(RWLock::ReadLock, 0));
|
|
EXPECT_EQ(RWLock::WeakUnlocking, flag);
|
|
a.weakUnlock();
|
|
EXPECT_EQ(RWLock::WeakUnlocked, flag);
|
|
|
|
EXPECT_TRUE(a.lock(RWLock::ReadLock, 0));
|
|
EXPECT_FALSE(a.weakLock(&flag));
|
|
a.unlock();
|
|
}
|