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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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 "base/trace_event/trace_event_impl.h" | 5 #include "base/trace_event/trace_event_impl.h" |
6 | 6 |
7 #include <algorithm> | 7 #include <algorithm> |
Mark Mentovai
2015/04/08 18:04:37
#include <cmath>
Mateusz Szymański
2015/04/09 07:32:51
Done.
| |
8 | 8 |
9 #include "base/base_switches.h" | 9 #include "base/base_switches.h" |
10 #include "base/bind.h" | 10 #include "base/bind.h" |
11 #include "base/command_line.h" | 11 #include "base/command_line.h" |
12 #include "base/debug/leak_annotations.h" | 12 #include "base/debug/leak_annotations.h" |
13 #include "base/float_util.h" | |
14 #include "base/format_macros.h" | 13 #include "base/format_macros.h" |
15 #include "base/json/string_escape.h" | 14 #include "base/json/string_escape.h" |
16 #include "base/lazy_instance.h" | 15 #include "base/lazy_instance.h" |
17 #include "base/memory/singleton.h" | 16 #include "base/memory/singleton.h" |
18 #include "base/message_loop/message_loop.h" | 17 #include "base/message_loop/message_loop.h" |
19 #include "base/process/process_metrics.h" | 18 #include "base/process/process_metrics.h" |
20 #include "base/stl_util.h" | 19 #include "base/stl_util.h" |
21 #include "base/strings/string_number_conversions.h" | 20 #include "base/strings/string_number_conversions.h" |
22 #include "base/strings/string_split.h" | 21 #include "base/strings/string_split.h" |
23 #include "base/strings/string_tokenizer.h" | 22 #include "base/strings/string_tokenizer.h" |
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639 StringAppendF(out, "%" PRIu64, static_cast<uint64>(value.as_uint)); | 638 StringAppendF(out, "%" PRIu64, static_cast<uint64>(value.as_uint)); |
640 break; | 639 break; |
641 case TRACE_VALUE_TYPE_INT: | 640 case TRACE_VALUE_TYPE_INT: |
642 StringAppendF(out, "%" PRId64, static_cast<int64>(value.as_int)); | 641 StringAppendF(out, "%" PRId64, static_cast<int64>(value.as_int)); |
643 break; | 642 break; |
644 case TRACE_VALUE_TYPE_DOUBLE: { | 643 case TRACE_VALUE_TYPE_DOUBLE: { |
645 // FIXME: base/json/json_writer.cc is using the same code, | 644 // FIXME: base/json/json_writer.cc is using the same code, |
646 // should be made into a common method. | 645 // should be made into a common method. |
647 std::string real; | 646 std::string real; |
648 double val = value.as_double; | 647 double val = value.as_double; |
649 if (IsFinite(val)) { | 648 if (std::isfinite(val)) { |
650 real = DoubleToString(val); | 649 real = DoubleToString(val); |
651 // Ensure that the number has a .0 if there's no decimal or 'e'. This | 650 // Ensure that the number has a .0 if there's no decimal or 'e'. This |
652 // makes sure that when we read the JSON back, it's interpreted as a | 651 // makes sure that when we read the JSON back, it's interpreted as a |
653 // real rather than an int. | 652 // real rather than an int. |
654 if (real.find('.') == std::string::npos && | 653 if (real.find('.') == std::string::npos && |
655 real.find('e') == std::string::npos && | 654 real.find('e') == std::string::npos && |
656 real.find('E') == std::string::npos) { | 655 real.find('E') == std::string::npos) { |
657 real.append(".0"); | 656 real.append(".0"); |
658 } | 657 } |
659 // The JSON spec requires that non-integer values in the range (-1,1) | 658 // The JSON spec requires that non-integer values in the range (-1,1) |
660 // have a zero before the decimal point - ".52" is not valid, "0.52" is. | 659 // have a zero before the decimal point - ".52" is not valid, "0.52" is. |
661 if (real[0] == '.') { | 660 if (real[0] == '.') { |
662 real.insert(0, "0"); | 661 real.insert(0, "0"); |
663 } else if (real.length() > 1 && real[0] == '-' && real[1] == '.') { | 662 } else if (real.length() > 1 && real[0] == '-' && real[1] == '.') { |
664 // "-.1" bad "-0.1" good | 663 // "-.1" bad "-0.1" good |
665 real.insert(1, "0"); | 664 real.insert(1, "0"); |
666 } | 665 } |
667 } else if (IsNaN(val)){ | 666 } else if (std::isnan(val)){ |
668 // The JSON spec doesn't allow NaN and Infinity (since these are | 667 // The JSON spec doesn't allow NaN and Infinity (since these are |
669 // objects in EcmaScript). Use strings instead. | 668 // objects in EcmaScript). Use strings instead. |
670 real = "\"NaN\""; | 669 real = "\"NaN\""; |
671 } else if (val < 0) { | 670 } else if (val < 0) { |
672 real = "\"-Infinity\""; | 671 real = "\"-Infinity\""; |
673 } else { | 672 } else { |
674 real = "\"Infinity\""; | 673 real = "\"Infinity\""; |
675 } | 674 } |
676 StringAppendF(out, "%s", real.c_str()); | 675 StringAppendF(out, "%s", real.c_str()); |
677 break; | 676 break; |
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2615 } | 2614 } |
2616 | 2615 |
2617 ScopedTraceBinaryEfficient::~ScopedTraceBinaryEfficient() { | 2616 ScopedTraceBinaryEfficient::~ScopedTraceBinaryEfficient() { |
2618 if (*category_group_enabled_) { | 2617 if (*category_group_enabled_) { |
2619 TRACE_EVENT_API_UPDATE_TRACE_EVENT_DURATION(category_group_enabled_, | 2618 TRACE_EVENT_API_UPDATE_TRACE_EVENT_DURATION(category_group_enabled_, |
2620 name_, event_handle_); | 2619 name_, event_handle_); |
2621 } | 2620 } |
2622 } | 2621 } |
2623 | 2622 |
2624 } // namespace trace_event_internal | 2623 } // namespace trace_event_internal |
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