Files
composable_kernel/host/online_compile/hip_utility/exec_utils.cpp
Chao Liu 54b3e73d17 rename
2021-08-06 18:07:15 +00:00

94 lines
2.9 KiB
C++

/*******************************************************************************
*
* MIT License
*
* Copyright (c) 2019 Advanced Micro Devices, Inc.
*
* 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
* copies 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
* IMPLIED, 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 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
*******************************************************************************/
#include <exec_utils.hpp>
#include <manage_ptr.hpp>
#include <istream>
#include <ostream>
#include <string>
#include <cstdio>
#include <array>
#include <cassert>
#ifdef __linux__
#include <unistd.h>
#include <cstdio>
#include <sys/wait.h>
#endif // __linux__
namespace online_compile {
namespace exec {
int Run(const std::string& p, std::istream* in, std::ostream* out)
{
#ifdef __linux__
const auto redirect_stdin = (in != nullptr);
const auto redirect_stdout = (out != nullptr);
assert(!(redirect_stdin && redirect_stdout));
const auto file_mode = redirect_stdout ? "r" : "w";
OLC_MANAGE_PTR(FILE*, pclose) pipe{popen(p.c_str(), file_mode)};
if(!pipe)
throw std::runtime_error("online_compile::exec::Run(): popen(" + p + ", " + file_mode +
") failed");
if(redirect_stdin || redirect_stdout)
{
std::array<char, 1024> buffer{};
if(redirect_stdout)
{
while(feof(pipe.get()) == 0)
if(fgets(buffer.data(), buffer.size(), pipe.get()) != nullptr)
*out << buffer.data();
}
else
{
while(!in->eof())
{
in->read(buffer.data(), buffer.size() - 1);
buffer[in->gcount()] = 0;
if(fputs(buffer.data(), pipe.get()) == EOF)
throw std::runtime_error("online_compile::exec::Run(): fputs() failed");
}
}
}
auto status = pclose(pipe.release());
return WEXITSTATUS(status);
#else
(void)p;
(void)in;
(void)out;
return -1;
#endif // __linux__
}
} // namespace exec
} // namespace online_compile