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| 1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "mojo/edk/system/data_pipe.h" | 5 #include "mojo/edk/system/data_pipe.h" |
| 6 | 6 |
| 7 #include <stddef.h> | 7 #include <stddef.h> |
| 8 #include <stdint.h> | 8 #include <stdint.h> |
| 9 | 9 |
| 10 #include <limits> | 10 #include <limits> |
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| 21 | 21 |
| 22 // Does a cursory sanity check of |validated_options|. Calls | 22 // Does a cursory sanity check of |validated_options|. Calls |
| 23 // |ValidateCreateOptions()| on already-validated options. The validated options | 23 // |ValidateCreateOptions()| on already-validated options. The validated options |
| 24 // should be valid, and the revalidated copy should be the same. | 24 // should be valid, and the revalidated copy should be the same. |
| 25 void RevalidateCreateOptions( | 25 void RevalidateCreateOptions( |
| 26 const MojoCreateDataPipeOptions& validated_options) { | 26 const MojoCreateDataPipeOptions& validated_options) { |
| 27 EXPECT_EQ(kSizeOfCreateOptions, validated_options.struct_size); | 27 EXPECT_EQ(kSizeOfCreateOptions, validated_options.struct_size); |
| 28 // Nothing to check for flags. | 28 // Nothing to check for flags. |
| 29 EXPECT_GT(validated_options.element_num_bytes, 0u); | 29 EXPECT_GT(validated_options.element_num_bytes, 0u); |
| 30 EXPECT_GT(validated_options.capacity_num_bytes, 0u); | 30 EXPECT_GT(validated_options.capacity_num_bytes, 0u); |
| 31 EXPECT_EQ(0u, | 31 EXPECT_EQ(0u, validated_options.capacity_num_bytes % |
| 32 validated_options.capacity_num_bytes % | 32 validated_options.element_num_bytes); |
| 33 validated_options.element_num_bytes); | |
| 34 | 33 |
| 35 MojoCreateDataPipeOptions revalidated_options = {}; | 34 MojoCreateDataPipeOptions revalidated_options = {}; |
| 36 EXPECT_EQ(MOJO_RESULT_OK, | 35 EXPECT_EQ(MOJO_RESULT_OK, |
| 37 DataPipe::ValidateCreateOptions(MakeUserPointer(&validated_options), | 36 DataPipe::ValidateCreateOptions(MakeUserPointer(&validated_options), |
| 38 &revalidated_options)); | 37 &revalidated_options)); |
| 39 EXPECT_EQ(validated_options.struct_size, revalidated_options.struct_size); | 38 EXPECT_EQ(validated_options.struct_size, revalidated_options.struct_size); |
| 40 EXPECT_EQ(validated_options.element_num_bytes, | 39 EXPECT_EQ(validated_options.element_num_bytes, |
| 41 revalidated_options.element_num_bytes); | 40 revalidated_options.element_num_bytes); |
| 42 EXPECT_EQ(validated_options.capacity_num_bytes, | 41 EXPECT_EQ(validated_options.capacity_num_bytes, |
| 43 revalidated_options.capacity_num_bytes); | 42 revalidated_options.capacity_num_bytes); |
| 44 EXPECT_EQ(validated_options.flags, revalidated_options.flags); | 43 EXPECT_EQ(validated_options.flags, revalidated_options.flags); |
| 45 } | 44 } |
| 46 | 45 |
| 47 // Checks that a default-computed capacity is correct. (Does not duplicate the | 46 // Checks that a default-computed capacity is correct. (Does not duplicate the |
| 48 // checks done by |RevalidateCreateOptions()|.) | 47 // checks done by |RevalidateCreateOptions()|.) |
| 49 void CheckDefaultCapacity(const MojoCreateDataPipeOptions& validated_options) { | 48 void CheckDefaultCapacity(const MojoCreateDataPipeOptions& validated_options) { |
| 50 EXPECT_LE(validated_options.capacity_num_bytes, | 49 EXPECT_LE(validated_options.capacity_num_bytes, |
| 51 GetConfiguration().default_data_pipe_capacity_bytes); | 50 GetConfiguration().default_data_pipe_capacity_bytes); |
| 52 EXPECT_GT(validated_options.capacity_num_bytes + | 51 EXPECT_GT(validated_options.capacity_num_bytes + |
| 53 validated_options.element_num_bytes, | 52 validated_options.element_num_bytes, |
| 54 GetConfiguration().default_data_pipe_capacity_bytes); | 53 GetConfiguration().default_data_pipe_capacity_bytes); |
| 55 } | 54 } |
| 56 | 55 |
| 57 // Tests valid inputs to |ValidateCreateOptions()|. | 56 // Tests valid inputs to |ValidateCreateOptions()|. |
| 58 TEST(DataPipeTest, ValidateCreateOptionsValid) { | 57 TEST(DataPipeTest, ValidateCreateOptionsValid) { |
| 59 // Default options. | 58 // Default options. |
| 60 { | 59 { |
| 61 MojoCreateDataPipeOptions validated_options = {}; | 60 MojoCreateDataPipeOptions validated_options = {}; |
| 62 EXPECT_EQ( | 61 EXPECT_EQ(MOJO_RESULT_OK, DataPipe::ValidateCreateOptions( |
| 63 MOJO_RESULT_OK, | 62 NullUserPointer(), &validated_options)); |
| 64 DataPipe::ValidateCreateOptions(NullUserPointer(), &validated_options)); | |
| 65 RevalidateCreateOptions(validated_options); | 63 RevalidateCreateOptions(validated_options); |
| 66 CheckDefaultCapacity(validated_options); | 64 CheckDefaultCapacity(validated_options); |
| 67 } | 65 } |
| 68 | 66 |
| 69 // Size member, but nothing beyond. | 67 // Size member, but nothing beyond. |
| 70 { | 68 { |
| 71 MojoCreateDataPipeOptions options = { | 69 MojoCreateDataPipeOptions options = { |
| 72 offsetof(MojoCreateDataPipeOptions, flags) // |struct_size|. | 70 offsetof(MojoCreateDataPipeOptions, flags) // |struct_size|. |
| 73 }; | 71 }; |
| 74 MojoCreateDataPipeOptions validated_options = {}; | 72 MojoCreateDataPipeOptions validated_options = {}; |
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| 368 MojoCreateDataPipeOptions unused; | 366 MojoCreateDataPipeOptions unused; |
| 369 EXPECT_EQ( | 367 EXPECT_EQ( |
| 370 MOJO_RESULT_RESOURCE_EXHAUSTED, | 368 MOJO_RESULT_RESOURCE_EXHAUSTED, |
| 371 DataPipe::ValidateCreateOptions(MakeUserPointer(&options), &unused)); | 369 DataPipe::ValidateCreateOptions(MakeUserPointer(&options), &unused)); |
| 372 } | 370 } |
| 373 } | 371 } |
| 374 | 372 |
| 375 } // namespace | 373 } // namespace |
| 376 } // namespace system | 374 } // namespace system |
| 377 } // namespace mojo | 375 } // namespace mojo |
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