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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 "nacl_io/passthroughfs/passthrough_fs.h" | 5 #include "nacl_io/passthroughfs/passthrough_fs.h" |
6 | 6 |
7 #include <errno.h> | 7 #include <errno.h> |
8 | 8 |
9 #include "nacl_io/kernel_handle.h" | 9 #include "nacl_io/kernel_handle.h" |
10 #include "nacl_io/kernel_wrap_real.h" | 10 #include "nacl_io/kernel_wrap_real.h" |
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26 } | 26 } |
27 | 27 |
28 public: | 28 public: |
29 // Normal read/write operations on a file | 29 // Normal read/write operations on a file |
30 virtual Error Read(const HandleAttr& attr, | 30 virtual Error Read(const HandleAttr& attr, |
31 void* buf, | 31 void* buf, |
32 size_t count, | 32 size_t count, |
33 int* out_bytes) { | 33 int* out_bytes) { |
34 *out_bytes = 0; | 34 *out_bytes = 0; |
35 | 35 |
36 off_t new_offset; | 36 int64_t new_offset; |
37 int err = _real_lseek(real_fd_, attr.offs, 0, &new_offset); | 37 int err = _real_lseek(real_fd_, attr.offs, 0, &new_offset); |
38 if (err) | 38 if (err) |
39 return err; | 39 return err; |
40 | 40 |
41 size_t nread; | 41 size_t nread; |
42 err = _real_read(real_fd_, buf, count, &nread); | 42 err = _real_read(real_fd_, buf, count, &nread); |
43 if (err) | 43 if (err) |
44 return err; | 44 return err; |
45 | 45 |
46 *out_bytes = static_cast<int>(nread); | 46 *out_bytes = static_cast<int>(nread); |
47 return 0; | 47 return 0; |
48 } | 48 } |
49 | 49 |
50 virtual Error Write(const HandleAttr& attr, | 50 virtual Error Write(const HandleAttr& attr, |
51 const void* buf, | 51 const void* buf, |
52 size_t count, | 52 size_t count, |
53 int* out_bytes) { | 53 int* out_bytes) { |
54 *out_bytes = 0; | 54 *out_bytes = 0; |
55 | 55 |
56 off_t new_offset; | 56 int64_t new_offset; |
57 int err = _real_lseek(real_fd_, attr.offs, 0, &new_offset); | 57 int err = _real_lseek(real_fd_, attr.offs, 0, &new_offset); |
58 if (err) | 58 if (err) |
59 return err; | 59 return err; |
60 | 60 |
61 size_t nwrote; | 61 size_t nwrote; |
62 err = _real_write(real_fd_, buf, count, &nwrote); | 62 err = _real_write(real_fd_, buf, count, &nwrote); |
63 if (err) | 63 if (err) |
64 return err; | 64 return err; |
65 | 65 |
66 *out_bytes = static_cast<int>(nwrote); | 66 *out_bytes = static_cast<int>(nwrote); |
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174 // Not implemented by NaCl. | 174 // Not implemented by NaCl. |
175 return ENOSYS; | 175 return ENOSYS; |
176 } | 176 } |
177 | 177 |
178 Error PassthroughFs::Rename(const Path& path, const Path& newpath) { | 178 Error PassthroughFs::Rename(const Path& path, const Path& newpath) { |
179 // Not implemented by NaCl. | 179 // Not implemented by NaCl. |
180 return ENOSYS; | 180 return ENOSYS; |
181 } | 181 } |
182 | 182 |
183 } // namespace nacl_io | 183 } // namespace nacl_io |
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