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// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/vlog.h"
#include "base/basictypes.h"
#include "base/string_number_conversions.h"
#include "base/string_split.h"
#include "base/string_util.h"
namespace logging {
const int VlogInfo::kDefaultVlogLevel = 0;
VlogInfo::VlogInfo(const std::string& v_switch,
const std::string& vmodule_switch)
: max_vlog_level_(kDefaultVlogLevel) {
typedef std::pair<std::string, std::string> KVPair;
if (!base::StringToInt(v_switch, &max_vlog_level_)) {
LOG(WARNING) << "Parsed v switch \""
<< v_switch << "\" as " << max_vlog_level_;
}
std::vector<KVPair> kv_pairs;
if (!base::SplitStringIntoKeyValuePairs(
vmodule_switch, '=', ',', &kv_pairs)) {
LOG(WARNING) << "Could not fully parse vmodule switch \""
<< vmodule_switch << "\"";
}
for (std::vector<KVPair>::const_iterator it = kv_pairs.begin();
it != kv_pairs.end(); ++it) {
int vlog_level = kDefaultVlogLevel;
if (!base::StringToInt(it->second, &vlog_level)) {
LOG(WARNING) << "Parsed vlog level for \""
<< it->first << "=" << it->second
<< "\" as " << vlog_level;
}
vmodule_levels_.push_back(std::make_pair(it->first, vlog_level));
}
}
VlogInfo::~VlogInfo() {}
int VlogInfo::GetVlogLevel(const base::StringPiece& file) {
if (!vmodule_levels_.empty()) {
base::StringPiece module(file);
base::StringPiece::size_type last_slash_pos =
module.find_last_of("\\/");
if (last_slash_pos != base::StringPiece::npos) {
module.remove_prefix(last_slash_pos + 1);
}
base::StringPiece::size_type extension_start = module.find('.');
module = module.substr(0, extension_start);
static const char kInlSuffix[] = "-inl";
static const int kInlSuffixLen = arraysize(kInlSuffix) - 1;
if (module.ends_with(kInlSuffix)) {
module.remove_suffix(kInlSuffixLen);
}
for (std::vector<VmodulePattern>::const_iterator it =
vmodule_levels_.begin(); it != vmodule_levels_.end(); ++it) {
// TODO(akalin): Use a less-heavyweight version of MatchPattern
// (we can pretty much assume we're dealing with ASCII).
if (MatchPattern(module, it->first)) {
return it->second;
}
}
}
return max_vlog_level_;
}
} // namespace
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