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| 1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2006-2008 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 // This program generates a user profile and history by randomly generating | 5 // This program generates a user profile and history by randomly generating |
| 6 // data and feeding it to the history service. | 6 // data and feeding it to the history service. |
| 7 | 7 |
| 8 #include "chrome/tools/profiles/thumbnail-inl.h" | 8 #include "chrome/tools/profiles/thumbnail-inl.h" |
| 9 | 9 |
| 10 #include "base/at_exit.h" | 10 #include "base/at_exit.h" |
| 11 #include "base/icu_util.h" | 11 #include "base/icu_util.h" |
| 12 #include "base/message_loop.h" | 12 #include "base/message_loop.h" |
| 13 #include "base/path_service.h" | 13 #include "base/path_service.h" |
| 14 #include "base/process_util.h" | 14 #include "base/process_util.h" |
| 15 #include "base/string_util.h" | 15 #include "base/string_util.h" |
| 16 #include "base/time.h" | 16 #include "base/time.h" |
| 17 #include "chrome/browser/history/history.h" | 17 #include "chrome/browser/history/history.h" |
| 18 #include "chrome/common/jpeg_codec.h" | 18 #include "chrome/common/jpeg_codec.h" |
| 19 #include "chrome/common/thumbnail_score.h" | 19 #include "chrome/common/thumbnail_score.h" |
| 20 #include "SkBitmap.h" | 20 #include "SkBitmap.h" |
| 21 | 21 |
| 22 using base::Time; |
| 23 |
| 22 // Probabilities of different word lengths, as measured from Darin's profile. | 24 // Probabilities of different word lengths, as measured from Darin's profile. |
| 23 // kWordLengthProbabilities[n-1] = P(word of length n) | 25 // kWordLengthProbabilities[n-1] = P(word of length n) |
| 24 const float kWordLengthProbabilities[] = { 0.069f, 0.132f, 0.199f, | 26 const float kWordLengthProbabilities[] = { 0.069f, 0.132f, 0.199f, |
| 25 0.137f, 0.088f, 0.115f, 0.081f, 0.055f, 0.034f, 0.021f, 0.019f, 0.018f, | 27 0.137f, 0.088f, 0.115f, 0.081f, 0.055f, 0.034f, 0.021f, 0.019f, 0.018f, |
| 26 0.007f, 0.007f, 0.005f, 0.004f, 0.003f, 0.003f, 0.003f }; | 28 0.007f, 0.007f, 0.005f, 0.004f, 0.003f, 0.003f, 0.003f }; |
| 27 | 29 |
| 28 // Return a float uniformly in [0,1]. | 30 // Return a float uniformly in [0,1]. |
| 29 // Useful for making probabilistic decisions. | 31 // Useful for making probabilistic decisions. |
| 30 float RandomFloat() { | 32 float RandomFloat() { |
| 31 return rand() / static_cast<float>(RAND_MAX); | 33 return rand() / static_cast<float>(RAND_MAX); |
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| 209 const int kBatchSize = 2000; | 211 const int kBatchSize = 2000; |
| 210 int page_id = 0; | 212 int page_id = 0; |
| 211 while (page_id < url_count) { | 213 while (page_id < url_count) { |
| 212 const int batch_size = std::min(kBatchSize, url_count - page_id); | 214 const int batch_size = std::min(kBatchSize, url_count - page_id); |
| 213 InsertURLBatch(profile_dir, page_id, batch_size, history_only); | 215 InsertURLBatch(profile_dir, page_id, batch_size, history_only); |
| 214 page_id += batch_size; | 216 page_id += batch_size; |
| 215 } | 217 } |
| 216 | 218 |
| 217 return 0; | 219 return 0; |
| 218 } | 220 } |
| 219 | |
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