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1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #ifndef MOJO_EDK_TEST_TEST_UTILS_H_
6 #define MOJO_EDK_TEST_TEST_UTILS_H_
7 
8 #include <stddef.h>
9 #include <stdio.h>
10 
11 #include <string>
12 
13 #include "base/files/scoped_file.h"
14 #include "mojo/edk/embedder/platform_handle.h"
15 #include "mojo/edk/embedder/scoped_platform_handle.h"
16 
17 namespace mojo {
18 namespace edk {
19 namespace test {
20 
21 // On success, |bytes_written| is updated to the number of bytes written;
22 // otherwise it is untouched.
23 bool BlockingWrite(const PlatformHandle& handle,
24                    const void* buffer,
25                    size_t bytes_to_write,
26                    size_t* bytes_written);
27 
28 // On success, |bytes_read| is updated to the number of bytes read; otherwise it
29 // is untouched.
30 bool BlockingRead(const PlatformHandle& handle,
31                   void* buffer,
32                   size_t buffer_size,
33                   size_t* bytes_read);
34 
35 // If the read is done successfully or would block, the function returns true
36 // and updates |bytes_read| to the number of bytes read (0 if the read would
37 // block); otherwise it returns false and leaves |bytes_read| untouched.
38 // |handle| must already be in non-blocking mode.
39 bool NonBlockingRead(const PlatformHandle& handle,
40                      void* buffer,
41                      size_t buffer_size,
42                      size_t* bytes_read);
43 
44 // Gets a (scoped) |PlatformHandle| from the given (scoped) |FILE|.
45 ScopedPlatformHandle PlatformHandleFromFILE(base::ScopedFILE fp);
46 
47 // Gets a (scoped) |FILE| from a (scoped) |PlatformHandle|.
48 base::ScopedFILE FILEFromPlatformHandle(ScopedPlatformHandle h,
49                                         const char* mode);
50 
51 }  // namespace test
52 }  // namespace edk
53 }  // namespace mojo
54 
55 #endif  // MOJO_EDK_TEST_TEST_UTILS_H_
56