Remove base::SharedMemory::ShareToProcess.

base/memory/discardable_shared_memory_unittest.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <stdint.h>
 
 #include "base/memory/discardable_shared_memory.h"
 #include "base/process/process_metrics.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
@@ skipping 26 matching lines @@
   EXPECT_TRUE(memory.IsMemoryLocked());
 }
 
 TEST(DiscardableSharedMemoryTest, CreateFromHandle) {
   const uint32_t kDataSize = 1024;
 
   TestDiscardableSharedMemory memory1;
   bool rv = memory1.CreateAndMap(kDataSize);
   ASSERT_TRUE(rv);
 
-  SharedMemoryHandle shared_handle;
-  ASSERT_TRUE(
-      memory1.ShareToProcess(GetCurrentProcessHandle(), &shared_handle));
-  ASSERT_TRUE(SharedMemory::IsHandleValid(shared_handle));
+  SharedMemoryHandle shared_handle = memory1.handle().Duplicate();
+  ASSERT_TRUE(shared_handle.IsValid());
 
   TestDiscardableSharedMemory memory2(shared_handle);
   rv = memory2.Map(kDataSize);
   ASSERT_TRUE(rv);
   EXPECT_TRUE(memory2.IsMemoryLocked());
 }
 
 TEST(DiscardableSharedMemoryTest, LockAndUnlock) {
   const uint32_t kDataSize = 1024;
 
@@ skipping 10 matching lines @@
   DiscardableSharedMemory::LockResult lock_rv = memory1.Lock(0, 0);
   EXPECT_EQ(DiscardableSharedMemory::SUCCESS, lock_rv);
   memory1.SetNow(Time::FromDoubleT(2));
   memory1.Unlock(0, 0);
 
   // Lock again before duplicating and passing ownership to new instance.
   lock_rv = memory1.Lock(0, 0);
   EXPECT_EQ(DiscardableSharedMemory::SUCCESS, lock_rv);
   EXPECT_TRUE(memory1.IsMemoryLocked());
 
-  SharedMemoryHandle shared_handle;
-  ASSERT_TRUE(
-      memory1.ShareToProcess(GetCurrentProcessHandle(), &shared_handle));
-  ASSERT_TRUE(SharedMemory::IsHandleValid(shared_handle));
+  SharedMemoryHandle shared_handle = memory1.handle().Duplicate();
+  ASSERT_TRUE(shared_handle.IsValid());
 
   TestDiscardableSharedMemory memory2(shared_handle);
   rv = memory2.Map(kDataSize);
   ASSERT_TRUE(rv);
 
   // Unlock second instance.
   memory2.SetNow(Time::FromDoubleT(3));
   memory2.Unlock(0, 0);
 
   // Both memory instances should be unlocked now.
@@ skipping 14 matching lines @@
   memory1.Unlock(0, 0);
 }
 
 TEST(DiscardableSharedMemoryTest, Purge) {
   const uint32_t kDataSize = 1024;
 
   TestDiscardableSharedMemory memory1;
   bool rv = memory1.CreateAndMap(kDataSize);
   ASSERT_TRUE(rv);
 
-  SharedMemoryHandle shared_handle;
-  ASSERT_TRUE(
-      memory1.ShareToProcess(GetCurrentProcessHandle(), &shared_handle));
-  ASSERT_TRUE(SharedMemory::IsHandleValid(shared_handle));
+  SharedMemoryHandle shared_handle = memory1.handle().Duplicate();
+  ASSERT_TRUE(shared_handle.IsValid());
 
   TestDiscardableSharedMemory memory2(shared_handle);
   rv = memory2.Map(kDataSize);
   ASSERT_TRUE(rv);
 
   // This should fail as memory is locked.
   rv = memory1.Purge(Time::FromDoubleT(1));
   EXPECT_FALSE(rv);
 
   memory2.SetNow(Time::FromDoubleT(2));
@@ skipping 18 matching lines @@
   ASSERT_FALSE(memory2.IsMemoryResident());
 }
 
 TEST(DiscardableSharedMemoryTest, LastUsed) {
   const uint32_t kDataSize = 1024;
 
   TestDiscardableSharedMemory memory1;
   bool rv = memory1.CreateAndMap(kDataSize);
   ASSERT_TRUE(rv);
 
-  SharedMemoryHandle shared_handle;
-  ASSERT_TRUE(
-      memory1.ShareToProcess(GetCurrentProcessHandle(), &shared_handle));
-  ASSERT_TRUE(SharedMemory::IsHandleValid(shared_handle));
+  SharedMemoryHandle shared_handle = memory1.handle().Duplicate();
+  ASSERT_TRUE(shared_handle.IsValid());
 
   TestDiscardableSharedMemory memory2(shared_handle);
   rv = memory2.Map(kDataSize);
   ASSERT_TRUE(rv);
 
   memory2.SetNow(Time::FromDoubleT(1));
   memory2.Unlock(0, 0);
 
   EXPECT_EQ(memory2.last_known_usage(), Time::FromDoubleT(1));
 
@@ skipping 44 matching lines @@
   EXPECT_TRUE(rv);
 }
 
 TEST(DiscardableSharedMemoryTest, LockShouldAlwaysFailAfterSuccessfulPurge) {
   const uint32_t kDataSize = 1024;
 
   TestDiscardableSharedMemory memory1;
   bool rv = memory1.CreateAndMap(kDataSize);
   ASSERT_TRUE(rv);
 
-  SharedMemoryHandle shared_handle;
-  ASSERT_TRUE(
-      memory1.ShareToProcess(GetCurrentProcessHandle(), &shared_handle));
-  ASSERT_TRUE(SharedMemory::IsHandleValid(shared_handle));
+  SharedMemoryHandle shared_handle = memory1.handle().Duplicate();
+  ASSERT_TRUE(shared_handle.IsValid());
 
   TestDiscardableSharedMemory memory2(shared_handle);
   rv = memory2.Map(kDataSize);
   ASSERT_TRUE(rv);
 
   memory2.SetNow(Time::FromDoubleT(1));
   memory2.Unlock(0, 0);
 
   rv = memory2.Purge(Time::FromDoubleT(2));
   EXPECT_TRUE(rv);
 
   // Lock should fail as memory has been purged.
   DiscardableSharedMemory::LockResult lock_rv = memory2.Lock(0, 0);
   EXPECT_EQ(DiscardableSharedMemory::FAILED, lock_rv);
 }
 
 TEST(DiscardableSharedMemoryTest, LockAndUnlockRange) {
   const uint32_t kDataSize = 32;
 
   uint32_t data_size_in_bytes = kDataSize * base::GetPageSize();
 
   TestDiscardableSharedMemory memory1;
   bool rv = memory1.CreateAndMap(data_size_in_bytes);
   ASSERT_TRUE(rv);
 
-  SharedMemoryHandle shared_handle;
-  ASSERT_TRUE(
-      memory1.ShareToProcess(GetCurrentProcessHandle(), &shared_handle));
-  ASSERT_TRUE(SharedMemory::IsHandleValid(shared_handle));
+  SharedMemoryHandle shared_handle = memory1.handle().Duplicate();
+  ASSERT_TRUE(shared_handle.IsValid());
 
   TestDiscardableSharedMemory memory2(shared_handle);
   rv = memory2.Map(data_size_in_bytes);
   ASSERT_TRUE(rv);
 
   // Unlock first page.
   memory2.SetNow(Time::FromDoubleT(1));
   memory2.Unlock(0, base::GetPageSize());
 
   rv = memory1.Purge(Time::FromDoubleT(2));
@@ skipping 95 matching lines @@
 // when DISCARDABLE_SHARED_MEMORY_ZERO_FILL_ON_DEMAND_PAGES_AFTER_PURGE is
 // defined and MADV_REMOVE is supported.
 #if defined(DISCARDABLE_SHARED_MEMORY_ZERO_FILL_ON_DEMAND_PAGES_AFTER_PURGE)
 TEST(DiscardableSharedMemoryTest, ZeroFilledPagesAfterPurge) {
   const uint32_t kDataSize = 1024;
 
   TestDiscardableSharedMemory memory1;
   bool rv = memory1.CreateAndMap(kDataSize);
   ASSERT_TRUE(rv);
 
-  SharedMemoryHandle shared_handle;
-  ASSERT_TRUE(
-      memory1.ShareToProcess(GetCurrentProcessHandle(), &shared_handle));
-  ASSERT_TRUE(SharedMemory::IsHandleValid(shared_handle));
+  SharedMemoryHandle shared_handle = memory1.handle().Duplicate();
+  ASSERT_TRUE(shared_handle.IsValid());
 
   TestDiscardableSharedMemory memory2(shared_handle);
   rv = memory2.Map(kDataSize);
   ASSERT_TRUE(rv);
 
   // Initialize all memory to '0xaa'.
   memset(memory2.memory(), 0xaa, kDataSize);
 
   // Unlock memory.
   memory2.SetNow(Time::FromDoubleT(1));
   memory2.Unlock(0, 0);
   EXPECT_FALSE(memory1.IsMemoryLocked());
 
   // Memory is unlocked, but our usage timestamp is incorrect.
   rv = memory1.Purge(Time::FromDoubleT(2));
   EXPECT_FALSE(rv);
   rv = memory1.Purge(Time::FromDoubleT(3));
   EXPECT_TRUE(rv);
 
   // Check that reading memory after it has been purged is returning
   // zero-filled pages.
   uint8_t expected_data[kDataSize] = {};
   EXPECT_EQ(memcmp(memory2.memory(), expected_data, kDataSize), 0);
 }
 #endif
 
 }  // namespace
 }  // namespace base