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1 /* | 1 /* |
2 * Copyright 2004 The WebRTC Project Authors. All rights reserved. | 2 * Copyright 2004 The WebRTC Project Authors. All rights reserved. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license | 4 * Use of this source code is governed by a BSD-style license |
5 * that can be found in the LICENSE file in the root of the source | 5 * that can be found in the LICENSE file in the root of the source |
6 * tree. An additional intellectual property rights grant can be found | 6 * tree. An additional intellectual property rights grant can be found |
7 * in the file PATENTS. All contributing project authors may | 7 * in the file PATENTS. All contributing project authors may |
8 * be found in the AUTHORS file in the root of the source tree. | 8 * be found in the AUTHORS file in the root of the source tree. |
9 */ | 9 */ |
10 | 10 |
11 #ifndef WEBRTC_BASE_HELPERS_H_ | 11 #ifndef WEBRTC_BASE_HELPERS_H_ |
12 #define WEBRTC_BASE_HELPERS_H_ | 12 #define WEBRTC_BASE_HELPERS_H_ |
13 | 13 |
14 #include <string> | 14 #include <string> |
15 #include "webrtc/base/basictypes.h" | 15 #include "webrtc/base/basictypes.h" |
16 | 16 |
17 namespace rtc { | 17 namespace rtc { |
18 | 18 |
19 // For testing, we can return predictable data. | 19 // For testing, we can return predictable data. |
20 void SetRandomTestMode(bool test); | 20 void SetRandomTestMode(bool test); |
21 | 21 |
22 // Initializes the RNG, and seeds it with the specified entropy. | 22 // Initializes the RNG, and seeds it with the specified entropy. |
23 bool InitRandom(int seed); | 23 bool InitRandom(int seed); |
24 bool InitRandom(const char* seed, size_t len); | 24 bool InitRandom(const char* seed, size_t len); |
25 | 25 |
26 // Generates a (cryptographically) random string of the given length. | 26 // Generates a (cryptographically) random string of the given length. |
27 // We generate base64 values so that they will be printable. | 27 // We generate base64 values so that they will be printable. |
28 // WARNING: could silently fail. Use the version below instead. | |
29 std::string CreateRandomString(size_t length); | 28 std::string CreateRandomString(size_t length); |
30 | 29 |
31 // Generates a (cryptographically) random string of the given length. | 30 // Generates a (cryptographically) random string of the given length. |
32 // We generate base64 values so that they will be printable. | 31 // We generate base64 values so that they will be printable. |
33 // Return false if the random number generator failed. | 32 // Return false if the random number generator failed. |
34 bool CreateRandomString(size_t length, std::string* str); | 33 bool CreateRandomString(size_t length, std::string* str); |
35 | 34 |
36 // Generates a (cryptographically) random string of the given length, | 35 // Generates a (cryptographically) random string of the given length, |
37 // with characters from the given table. Return false if the random | 36 // with characters from the given table. Return false if the random |
38 // number generator failed. | 37 // number generator failed. |
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50 | 49 |
51 // Generates a random id > 0. | 50 // Generates a random id > 0. |
52 uint32_t CreateRandomNonZeroId(); | 51 uint32_t CreateRandomNonZeroId(); |
53 | 52 |
54 // Generates a random double between 0.0 (inclusive) and 1.0 (exclusive). | 53 // Generates a random double between 0.0 (inclusive) and 1.0 (exclusive). |
55 double CreateRandomDouble(); | 54 double CreateRandomDouble(); |
56 | 55 |
57 } // namespace rtc | 56 } // namespace rtc |
58 | 57 |
59 #endif // WEBRTC_BASE_HELPERS_H_ | 58 #endif // WEBRTC_BASE_HELPERS_H_ |
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