mirror of
https://github.com/FEX-Emu/FEX.git
synced 2026-10-07 03:00:17 +02:00
Ryan Houdek
4ccd68af8a
This solves a problem where sometimes FEX would spin up a new process while FEXMountDaemon was in the process of shutting down. Breaking things on both sides. Now the race conditions are squashed that I could see. Also fixes one race where FEX is starting up and FEXMountDaemon is spinning up. This case is where FEX managed to pull the lock file just before it got deleted. Then sent the FEXMountDaemon a request to be observed. With DGRAM sockets we would fire and forget. Use a STREAM with a ack result so we know we can return.
91 lines
2.8 KiB
C++
91 lines
2.8 KiB
C++
#include "ConfigDefines.h"
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#include "OptionParser.h"
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#include "Common/RootFSSetup.h"
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#include "git_version.h"
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#include <FEXCore/Config/Config.h>
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#include <filesystem>
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#include <stdio.h>
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#include <string>
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int main(int argc, char **argv, char **envp) {
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FEXCore::Config::Initialize();
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FEXCore::Config::AddLayer(FEXCore::Config::CreateMainLayer());
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// No FEX arguments passed through command line
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FEXCore::Config::AddLayer(FEXCore::Config::CreateEnvironmentLayer(envp));
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FEXCore::Config::Load();
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// Load the arguments
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optparse::OptionParser Parser = optparse::OptionParser()
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.description("Simple application to get a couple of FEX options");
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Parser.add_option("--install-prefix")
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.action("store_true")
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.help("Print the FEX install prefix");
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Parser.add_option("--app")
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.help("Load an application profile for this application if it exists");
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Parser.add_option("--current-rootfs")
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.action("store_true")
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.help("Print the directory that contains the FEX rootfs. Mounted in the case of squashfs");
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Parser.add_option("--current-rootfs-lock")
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.action("store_true")
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.help("SquashFS lock file if squashfs is mounted");
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Parser.add_option("--current-rootfs-socket")
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.action("store_true")
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.help("SquashFS socket file if squashfs is mounted");
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Parser.add_option("--version")
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.action("store_true")
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.help("Print the installed FEX-Emu version");
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optparse::Values Options = Parser.parse_args(argc, argv);
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if (Options.is_set_by_user("app")) {
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// Load the application config if one was provided
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auto ProgramName = std::filesystem::path(Options["app"]).filename();
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FEXCore::Config::AddLayer(FEXCore::Config::CreateAppLayer(ProgramName, true));
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FEXCore::Config::AddLayer(FEXCore::Config::CreateAppLayer(ProgramName, false));
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}
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// Reload the meta layer
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FEXCore::Config::ReloadMetaLayer();
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if (Options.is_set_by_user("version")) {
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fprintf(stdout, GIT_DESCRIBE_STRING "\n");
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}
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if (Options.is_set_by_user("install_prefix")) {
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fprintf(stdout, FEX_INSTALL_PREFIX "\n");
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}
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if (Options.is_set_by_user("current_rootfs_lock")) {
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auto LockFile = FEX::RootFS::GetRootFSLockFile();
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if (FEX::RootFS::CheckLockExists(LockFile)) {
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fprintf(stdout, "%s\n", LockFile.c_str());
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}
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}
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if (Options.is_set_by_user("current_rootfs_socket")) {
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auto LockFile = FEX::RootFS::GetRootFSLockFile();
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std::string MountPath;
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if (FEX::RootFS::CheckLockExists(LockFile, &MountPath)) {
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std::string SocketPath = FEX::RootFS::GetRootFSSocketFile(MountPath);
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fprintf(stdout, "%s\n", SocketPath.c_str());
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}
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}
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if (Options.is_set_by_user("current_rootfs")) {
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auto LockFile = FEX::RootFS::GetRootFSLockFile();
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std::string MountPath;
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if (FEX::RootFS::CheckLockExists(LockFile, &MountPath)) {
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fprintf(stdout, "%s\n", MountPath.c_str());
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}
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}
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return 0;
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}
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