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| 1 // Copyright (c) 2010 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 "base/vlog.h" |
| 6 |
| 7 #include "base/basictypes.h" |
| 8 #include "base/string_number_conversions.h" |
| 9 #include "base/string_split.h" |
| 10 #include "base/string_util.h" |
| 11 |
| 12 namespace logging { |
| 13 |
| 14 const int VlogInfo::kDefaultVlogLevel = 0; |
| 15 |
| 16 VlogInfo::VlogInfo(const std::string& v_switch, |
| 17 const std::string& vmodule_switch) |
| 18 : max_vlog_level_(kDefaultVlogLevel) { |
| 19 typedef std::pair<std::string, std::string> KVPair; |
| 20 if (!base::StringToInt(v_switch, &max_vlog_level_)) { |
| 21 LOG(WARNING) << "Parsed v switch \"" |
| 22 << v_switch << "\" as " << max_vlog_level_; |
| 23 } |
| 24 std::vector<KVPair> kv_pairs; |
| 25 if (!base::SplitStringIntoKeyValuePairs( |
| 26 vmodule_switch, '=', ',', &kv_pairs)) { |
| 27 LOG(WARNING) << "Could not fully parse vmodule switch \"" |
| 28 << vmodule_switch << "\""; |
| 29 } |
| 30 for (std::vector<KVPair>::const_iterator it = kv_pairs.begin(); |
| 31 it != kv_pairs.end(); ++it) { |
| 32 int vlog_level = kDefaultVlogLevel; |
| 33 if (!base::StringToInt(it->second, &vlog_level)) { |
| 34 LOG(WARNING) << "Parsed vlog level for \"" |
| 35 << it->first << "=" << it->second |
| 36 << "\" as " << vlog_level; |
| 37 } |
| 38 vmodule_levels_.push_back(std::make_pair(it->first, vlog_level)); |
| 39 } |
| 40 } |
| 41 |
| 42 int VlogInfo::GetVlogLevel(const base::StringPiece& file) { |
| 43 if (!vmodule_levels_.empty()) { |
| 44 base::StringPiece module(file); |
| 45 base::StringPiece::size_type last_slash_pos = |
| 46 module.find_last_of("\\/"); |
| 47 if (last_slash_pos != base::StringPiece::npos) { |
| 48 module.remove_prefix(last_slash_pos + 1); |
| 49 } |
| 50 base::StringPiece::size_type extension_start = module.find('.'); |
| 51 module = module.substr(0, extension_start); |
| 52 static const char kInlSuffix[] = "-inl"; |
| 53 static const int kInlSuffixLen = arraysize(kInlSuffix) - 1; |
| 54 if (module.ends_with(kInlSuffix)) { |
| 55 module.remove_suffix(kInlSuffixLen); |
| 56 } |
| 57 for (std::vector<VmodulePattern>::const_iterator it = |
| 58 vmodule_levels_.begin(); it != vmodule_levels_.end(); ++it) { |
| 59 // TODO(akalin): Use a less-heavyweight version of MatchPattern |
| 60 // (we can pretty much assume we're dealing with ASCII). |
| 61 if (MatchPattern(module, it->first)) { |
| 62 return it->second; |
| 63 } |
| 64 } |
| 65 } |
| 66 return max_vlog_level_; |
| 67 } |
| 68 |
| 69 } // namespace |
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