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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /memory/volatile/tests/TestVolatileBuffer.cpp
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'memory/volatile/tests/TestVolatileBuffer.cpp')
-rw-r--r--memory/volatile/tests/TestVolatileBuffer.cpp102
1 files changed, 102 insertions, 0 deletions
diff --git a/memory/volatile/tests/TestVolatileBuffer.cpp b/memory/volatile/tests/TestVolatileBuffer.cpp
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+++ b/memory/volatile/tests/TestVolatileBuffer.cpp
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+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "gtest/gtest.h"
+#include "mozilla/VolatileBuffer.h"
+#include <string.h>
+
+#if defined(ANDROID)
+#include <fcntl.h>
+#include <linux/ashmem.h>
+#include <sys/ioctl.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#elif defined(XP_DARWIN)
+#include <mach/mach.h>
+#endif
+
+using namespace mozilla;
+
+TEST(VolatileBufferTest, HeapVolatileBuffersWork)
+{
+ RefPtr<VolatileBuffer> heapbuf = new VolatileBuffer();
+
+ ASSERT_TRUE(heapbuf) << "Failed to create VolatileBuffer";
+ ASSERT_TRUE(heapbuf->Init(512)) << "Failed to initialize VolatileBuffer";
+
+ VolatileBufferPtr<char> ptr(heapbuf);
+
+ EXPECT_FALSE(ptr.WasBufferPurged())
+ << "Buffer should not be purged immediately after initialization";
+ EXPECT_TRUE(ptr) << "Couldn't get pointer from VolatileBufferPtr";
+}
+
+TEST(VolatileBufferTest, RealVolatileBuffersWork)
+{
+ RefPtr<VolatileBuffer> buf = new VolatileBuffer();
+
+ ASSERT_TRUE(buf) << "Failed to create VolatileBuffer";
+ ASSERT_TRUE(buf->Init(16384)) << "Failed to initialize VolatileBuffer";
+
+ const char teststr[] = "foobar";
+
+ {
+ VolatileBufferPtr<char> ptr(buf);
+
+ EXPECT_FALSE(ptr.WasBufferPurged())
+ << "Buffer should not be purged immediately after initialization";
+ EXPECT_TRUE(ptr) << "Couldn't get pointer from VolatileBufferPtr";
+
+ {
+ VolatileBufferPtr<char> ptr2(buf);
+
+ EXPECT_FALSE(ptr.WasBufferPurged())
+ << "Failed to lock buffer again while currently locked";
+ ASSERT_TRUE(ptr2) << "Didn't get a pointer on the second lock";
+
+ strcpy(ptr2, teststr);
+ }
+ }
+
+ {
+ VolatileBufferPtr<char> ptr(buf);
+
+ EXPECT_FALSE(ptr.WasBufferPurged())
+ << "Buffer was immediately purged after unlock";
+ EXPECT_STREQ(ptr, teststr) << "Buffer failed to retain data after unlock";
+ }
+
+ // Test purging if we know how to
+#if defined(MOZ_WIDGET_GONK)
+ // This also works on Android, but we need root.
+ int fd = open("/" ASHMEM_NAME_DEF, O_RDWR);
+
+ ASSERT_GE(fd, 0) << "Failed to open ashmem device";
+ ASSERT_GE(ioctl(fd, ASHMEM_PURGE_ALL_CACHES, NULL), 0)
+ << "Failed to purge ashmem caches";
+#elif defined(XP_DARWIN)
+ int state;
+ vm_purgable_control(mach_task_self(), (vm_address_t)NULL,
+ VM_PURGABLE_PURGE_ALL, &state);
+#else
+ return;
+#endif
+
+ EXPECT_GT(buf->NonHeapSizeOfExcludingThis(), 0ul)
+ << "Buffer should not be allocated on heap";
+
+ {
+ VolatileBufferPtr<char> ptr(buf);
+
+ EXPECT_TRUE(ptr.WasBufferPurged())
+ << "Buffer should not be unpurged after forced purge";
+ EXPECT_STRNE(ptr, teststr) << "Purge did not actually purge data";
+ }
+
+ {
+ VolatileBufferPtr<char> ptr(buf);
+
+ EXPECT_FALSE(ptr.WasBufferPurged()) << "Buffer still purged after lock";
+ }
+}