blob: ab205e7b48b10a98e34b7870c1e53663df3d9110 [file] [log] [blame]
/*
* Copyright (C) 2008 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* Common string pool for the profiler
*/
#include "hprof.h"
#include "object.h"
#include "unordered_map.h"
#include "logging.h"
namespace art {
namespace hprof {
HprofStringId Hprof::LookupStringId(String* string) {
return LookupStringId(string->ToModifiedUtf8());
}
HprofStringId Hprof::LookupStringId(const char* string) {
return LookupStringId(std::string(string));
}
HprofStringId Hprof::LookupStringId(std::string string) {
MutexLock mu(strings_lock_);
if (strings_.find(string) == strings_.end()) {
strings_[string] = next_string_id_++;
}
return strings_[string];
}
int Hprof::DumpStrings() {
MutexLock mu(strings_lock_);
HprofRecord *rec = &current_record_;
for (StringMapIterator it = strings_.begin(); it != strings_.end(); ++it) {
std::string string = (*it).first;
size_t id = (*it).second;
int err = StartNewRecord(HPROF_TAG_STRING, HPROF_TIME);
if (err != 0) {
return err;
}
/* STRING format:
*
* ID: ID for this string
* [uint8_t]*: UTF8 characters for string (NOT NULL terminated)
* (the record format encodes the length)
*
* We use the address of the string data as its ID.
*/
err = rec->AddU4(id);
if (err != 0) {
return err;
}
err = rec->AddUtf8String(string.c_str());
if (err != 0) {
return err;
}
}
return 0;
}
} // namespace hprof
} // namespace art