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// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you 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.
#include "pyarrow/common.h"
#include <cstdlib>
#include <mutex>
#include <sstream>
#include <arrow/util/memory-pool.h>
#include <arrow/util/status.h>
#include "pyarrow/status.h"
namespace pyarrow {
class PyArrowMemoryPool : public arrow::MemoryPool {
public:
PyArrowMemoryPool() : bytes_allocated_(0) {}
virtual ~PyArrowMemoryPool() {}
arrow::Status Allocate(int64_t size, uint8_t** out) override {
std::lock_guard<std::mutex> guard(pool_lock_);
*out = static_cast<uint8_t*>(std::malloc(size));
if (*out == nullptr) {
std::stringstream ss;
ss << "malloc of size " << size << " failed";
return arrow::Status::OutOfMemory(ss.str());
}
bytes_allocated_ += size;
return arrow::Status::OK();
}
int64_t bytes_allocated() const override {
std::lock_guard<std::mutex> guard(pool_lock_);
return bytes_allocated_;
}
void Free(uint8_t* buffer, int64_t size) override {
std::lock_guard<std::mutex> guard(pool_lock_);
std::free(buffer);
bytes_allocated_ -= size;
}
private:
mutable std::mutex pool_lock_;
int64_t bytes_allocated_;
};
arrow::MemoryPool* GetMemoryPool() {
static PyArrowMemoryPool memory_pool;
return &memory_pool;
}
} // namespace pyarrow