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/* ************************************************************************
* Copyright (C) 2018-2024 Advanced Micro Devices, Inc. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell cop-
* ies of the Software, and to permit persons to whom the Software is furnished
* to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IM-
* PLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNE-
* CTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* ************************************************************************ */
#pragma once
#include "rocblas_arguments.hpp"
#include "test_cleanup.hpp"
#include <cerrno>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <fstream>
#include <functional>
#include <iostream>
#include <iterator>
#include <string>
#include <utility>
#if __has_include(<filesystem>)
#include <filesystem>
namespace fs = std::filesystem;
#elif __has_include(<experimental/filesystem>)
#include <experimental/filesystem>
namespace fs = std::experimental::filesystem;
#else
#error no filesystem found
#endif
// Class used to read Arguments data into the tests
class RocBLAS_TestData
{
// data filename
static auto& filename()
{
static std::string filename
= "(Uninitialized data. RocBLAS_TestData::set_filename needs to be called first.)";
return filename;
}
// filter iterator
class iterator : public std::istream_iterator<Arguments>
{
bool (*const filter)(const Arguments&) = nullptr;
// Skip entries for which validate or filter returns false
void skip_filter()
{
static auto endIter = std::istream_iterator<Arguments>{};
// warning we may update the Arguments in validate, thus the const_cast
while(*this != endIter && !(const_cast<Arguments&>(**this).validate()))
++*static_cast<std::istream_iterator<Arguments>*>(this);
if(filter)
while(*this != endIter && !filter(**this))
++*static_cast<std::istream_iterator<Arguments>*>(this);
}
public:
// Constructor takes a filter and iterator
iterator(bool filter(const Arguments&), std::istream_iterator<Arguments> iter)
: std::istream_iterator<Arguments>(iter)
, filter(filter)
{
skip_filter();
}
// Default end iterator and nullptr filter
iterator() = default;
// Preincrement iterator operator with filtering
iterator& operator++()
{
++*static_cast<std::istream_iterator<Arguments>*>(this);
skip_filter();
return *this;
}
// We do not need a postincrement iterator operator
// We delete it here so that the base class's isn't silently called
// To implement it, use "auto old = *this; ++*this; return old;"
iterator operator++(int) = delete;
};
public:
// Initialize filename, optionally removing it at exit
static void set_filename(std::string name, bool remove_atexit = false)
{
filename() = std::move(name);
if(remove_atexit)
{
auto cleanup = [] { fs::remove(filename().c_str()); };
atexit(cleanup);
at_quick_exit(cleanup);
}
}
// begin() iterator which accepts an optional filter.
static iterator begin(bool filter(const Arguments&) = nullptr)
{
static std::ifstream* ifs = nullptr;
// If this is the first time, or after test_cleanup::cleanup() has been called
if(!ifs)
{
std::string fileToOpen = filename();
// Allocate a std::ifstream and register it to be deleted during cleanup
ifs = test_cleanup::allocate(
&ifs, fileToOpen, std::ifstream::in | std::ifstream::binary);
if(!ifs || ifs->fail())
{
rocblas_cerr << "Cannot open: " << fileToOpen << std::endl;
exit(EXIT_FAILURE);
}
}
// We re-seek the file back to position 0
ifs->clear();
ifs->seekg(0);
// Validate the data file format
Arguments::validate(*ifs);
// We create a filter iterator which will choose only the test cases we want right now.
// This is to preserve Gtest structure while not creating no-op tests which "always pass".
return iterator(filter, std::istream_iterator<Arguments>(*ifs));
}
// end() iterator
static iterator end()
{
return {};
}
};
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