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https://github.com/FEX-Emu/FEX.git
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Ryan Houdek
8e511e7db4
This was causing FEXServer to look in to global installed paths and local paths for things when FEXServer was started. Ensure it listens to FEX_PORTABLE so this doesn't occur. This also requires us to scan both data directories and config directories to find them.
34 lines
1.1 KiB
C++
34 lines
1.1 KiB
C++
// SPDX-License-Identifier: MIT
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#pragma once
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#include "Common/Config.h"
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namespace FEX {
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static inline FEX::Config::PortableInformation ReadPortabilityInformation() {
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const FEX::Config::PortableInformation BadResult {false, {}};
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const char* PortableConfig = getenv("FEX_PORTABLE");
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if (!PortableConfig) {
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return BadResult;
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}
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uint32_t Value {};
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std::string_view PortableView {PortableConfig};
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if (std::from_chars(PortableView.data(), PortableView.data() + PortableView.size(), Value).ec != std::errc {} || Value == 0) {
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return BadResult;
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}
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// Read the FEXInterpreter path from `/proc/self/exe` which is always a symlink to the absolute path of the executable running.
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// This way we can get the parent path that the application is executing from.
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char SelfPath[PATH_MAX];
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auto Result = readlink("/proc/self/exe", SelfPath, PATH_MAX);
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if (Result == -1) {
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return BadResult;
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}
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std::string_view SelfPathView {SelfPath, std::min<size_t>(PATH_MAX, Result)};
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// Extract the absolute path from the FEXInterpreter path
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return {true, fextl::string {SelfPathView.substr(0, SelfPathView.find_last_of('/') + 1)}};
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}
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} // namespace FEX
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