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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 #include "device/bluetooth/bluetooth_uuid.h" | |
| 6 | |
| 7 #include "base/basictypes.h" | |
| 8 #include "base/logging.h" | |
| 9 #include "base/strings/string_util.h" | |
| 10 | |
| 11 namespace device { | |
| 12 | |
| 13 namespace { | |
| 14 | |
| 15 const char* kCommonUuidPostfix = "-0000-1000-8000-00805f9b34fb"; | |
| 16 const char* kCommonUuidPrefix = "0000"; | |
| 17 const int kUuidSize = 36; | |
| 18 | |
| 19 // Returns the canonical, 128-bit canonical, and the format of the UUID | |
| 20 // in |canonical|, |canonical_128|, and |format| based on |uuid|. | |
| 21 void GetCanonicalUuid(std::string uuid, | |
| 22 std::string* canonical, | |
| 23 std::string* canonical_128, | |
| 24 BluetoothUUID::Format* format) { | |
| 25 // Initialize the values for the failure case. | |
| 26 canonical->clear(); | |
| 27 canonical_128->clear(); | |
| 28 *format = BluetoothUUID::kFormatInvalid; | |
| 29 | |
| 30 if (uuid.empty()) | |
| 31 return; | |
| 32 | |
| 33 if (uuid.size() < 11 && uuid.find("0x") == 0) | |
| 34 uuid = uuid.substr(2); | |
| 35 | |
| 36 if (!(uuid.size() == 4 || uuid.size() == 8 || uuid.size() == 36)) | |
| 37 return; | |
| 38 | |
| 39 if (uuid.size() == 4 || uuid.size() == 8) { | |
| 40 for (size_t i = 0; i < uuid.size(); ++i) { | |
| 41 if (!IsHexDigit(uuid[i])) | |
| 42 return; | |
| 43 } | |
| 44 if (uuid.size() == 4) { | |
| 45 canonical->assign(uuid); | |
| 46 canonical_128->assign(kCommonUuidPrefix + uuid + kCommonUuidPostfix); | |
| 47 *format = BluetoothUUID::kFormat16Bit; | |
| 48 return; | |
| 49 } | |
| 50 canonical->assign(uuid); | |
| 51 canonical_128->assign(uuid + kCommonUuidPostfix); | |
| 52 *format = BluetoothUUID::kFormat32Bit; | |
| 53 return; | |
| 54 } | |
| 55 | |
| 56 for (int i = 0; i < kUuidSize; ++i) { | |
| 57 if (i == 8 || i == 13 || i == 18 || i == 23) { | |
| 58 if (uuid[i] != '-') | |
| 59 return; | |
| 60 } else { | |
| 61 if (!IsHexDigit(uuid[i])) | |
| 62 return; | |
| 63 uuid[i] = tolower(uuid[i]); | |
| 64 } | |
| 65 } | |
| 66 | |
| 67 canonical->assign(uuid); | |
| 68 canonical_128->assign(uuid); | |
| 69 *format = BluetoothUUID::kFormat128Bit; | |
| 70 } | |
| 71 | |
| 72 } // namespace | |
| 73 | |
| 74 | |
| 75 BluetoothUUID::BluetoothUUID(const std::string& uuid) { | |
| 76 GetCanonicalUuid(uuid, &value_, &canonical_value_, &format_); | |
| 77 } | |
| 78 | |
| 79 BluetoothUUID::BluetoothUUID() : format_(kFormatInvalid) { | |
| 80 } | |
| 81 | |
| 82 BluetoothUUID::~BluetoothUUID() { | |
| 83 } | |
| 84 | |
| 85 bool BluetoothUUID::IsValid() const { | |
| 86 return format_ != kFormatInvalid; | |
| 87 } | |
| 88 | |
| 89 bool BluetoothUUID::operator<(const BluetoothUUID& uuid) const { | |
| 90 return canonical_value_ < uuid.canonical_value_; | |
| 91 } | |
| 92 | |
| 93 bool BluetoothUUID::operator==(const BluetoothUUID& uuid) const { | |
| 94 return canonical_value_ == uuid.canonical_value_; | |
| 95 } | |
| 96 | |
| 97 bool BluetoothUUID::operator!=(const BluetoothUUID& uuid) const { | |
| 98 return canonical_value_ != uuid.canonical_value_; | |
| 99 } | |
| 100 | |
| 101 } // namespace device | |
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Chromium Code Reviews
Issue 224763003:
Revert 261566 "device/bluetooth: Rename device::bluetooth_utils:..." (Closed)
Base URL: svn://svn.chromium.org/chrome/