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03fc65347c
# ignore-this-changeset Differential Revision: https://phabricator.services.mozilla.com/D26280 --HG-- extra : moz-landing-system : lando
101 lines
2.6 KiB
C++
101 lines
2.6 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "gtest/gtest.h"
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#include "mozilla/VolatileBuffer.h"
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#include <string.h>
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#if defined(ANDROID)
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# include <fcntl.h>
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# include <linux/ashmem.h>
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# include <sys/ioctl.h>
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# include <sys/stat.h>
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# include <sys/types.h>
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#elif defined(XP_DARWIN)
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# include <mach/mach.h>
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#endif
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using namespace mozilla;
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TEST(VolatileBufferTest, HeapVolatileBuffersWork)
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{
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RefPtr<VolatileBuffer> heapbuf = new VolatileBuffer();
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ASSERT_TRUE(heapbuf)
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<< "Failed to create VolatileBuffer";
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ASSERT_TRUE(heapbuf->Init(512))
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<< "Failed to initialize VolatileBuffer";
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VolatileBufferPtr<char> ptr(heapbuf);
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EXPECT_FALSE(ptr.WasBufferPurged())
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<< "Buffer should not be purged immediately after initialization";
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EXPECT_TRUE(ptr) << "Couldn't get pointer from VolatileBufferPtr";
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}
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TEST(VolatileBufferTest, RealVolatileBuffersWork)
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{
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RefPtr<VolatileBuffer> buf = new VolatileBuffer();
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ASSERT_TRUE(buf)
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<< "Failed to create VolatileBuffer";
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ASSERT_TRUE(buf->Init(16384))
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<< "Failed to initialize VolatileBuffer";
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const char teststr[] = "foobar";
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{
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VolatileBufferPtr<char> ptr(buf);
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EXPECT_FALSE(ptr.WasBufferPurged())
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<< "Buffer should not be purged immediately after initialization";
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EXPECT_TRUE(ptr) << "Couldn't get pointer from VolatileBufferPtr";
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{
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VolatileBufferPtr<char> ptr2(buf);
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EXPECT_FALSE(ptr.WasBufferPurged())
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<< "Failed to lock buffer again while currently locked";
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ASSERT_TRUE(ptr2)
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<< "Didn't get a pointer on the second lock";
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strcpy(ptr2, teststr);
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}
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}
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{
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VolatileBufferPtr<char> ptr(buf);
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EXPECT_FALSE(ptr.WasBufferPurged())
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<< "Buffer was immediately purged after unlock";
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EXPECT_STREQ(ptr, teststr) << "Buffer failed to retain data after unlock";
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}
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// Test purging if we know how to
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#if defined(XP_DARWIN)
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int state;
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vm_purgable_control(mach_task_self(), (vm_address_t)NULL,
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VM_PURGABLE_PURGE_ALL, &state);
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#else
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return;
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#endif
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EXPECT_GT(buf->NonHeapSizeOfExcludingThis(), 0ul)
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<< "Buffer should not be allocated on heap";
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{
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VolatileBufferPtr<char> ptr(buf);
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EXPECT_TRUE(ptr.WasBufferPurged())
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<< "Buffer should not be unpurged after forced purge";
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EXPECT_STRNE(ptr, teststr) << "Purge did not actually purge data";
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}
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{
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VolatileBufferPtr<char> ptr(buf);
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EXPECT_FALSE(ptr.WasBufferPurged()) << "Buffer still purged after lock";
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}
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}
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