AuroraRuntime/Include/Aurora/Process/Process.hpp

/***
    Copyright (C) 2021 J Reece Wilson (a/k/a "Reece"). All rights reserved.

    File: Process.hpp
    Date: 2021-6-10
    Author: Reece
***/
#pragma once

#include "Paths.hpp"
#include "ProcessMap.hpp"

namespace Aurora::Process
{
    AUKN_SYM AU_NORETURN void Exit(AuUInt32 exitcode);

    AUE_DEFINE(EModulePath, 
    (
        eModulePathCWD,
        eModulePathSystemDir, /// /lib/, windir/system32
        eModulePathUserDir,   /// /usr/lib/
        eProcessDirectory,    /// 
        eOSSpecified,         /// LD_LIBRARY_PATH + /etc/ld.so.conf, AddDllDirectory
        eSpecified
    ));
    
    static AuList<EModulePath> kUserOverloadableSearchPath  = {EModulePath::eSpecified, EModulePath::eModulePathCWD, EModulePath::eProcessDirectory, EModulePath::eModulePathUserDir, EModulePath::eModulePathSystemDir};
    static AuList<EModulePath> kAdminOverloadableSearchPath = {EModulePath::eSpecified, EModulePath::eModulePathSystemDir, EModulePath::eProcessDirectory, EModulePath::eModulePathCWD, EModulePath::eModulePathUserDir};
    static AuList<EModulePath> kSpecifiedPath               = {EModulePath::eSpecified};

    struct ModuleLoadRequest
    {
        inline ModuleLoadRequest(const AuList<AuString> &directories, const AuString &mod) : mod(mod), specifiedSearchPaths(&directories), searchPath(&kSpecifiedPath)
        {}

        inline ModuleLoadRequest(const AuList<AuString> &directories, const AuString &mod, const AuString &version) : mod(mod), version(version), specifiedSearchPaths(&directories), searchPath(&kSpecifiedPath)
        {}
        
        inline ModuleLoadRequest(const AuString &mod) : mod(mod), searchPath(&kAdminOverloadableSearchPath) 
        {}
        
        inline ModuleLoadRequest(const AuString &mod, const AuString &version) : mod(mod), version(version), searchPath(&kAdminOverloadableSearchPath) 
        {}

        AuString mod;
        AuString version;
        AuList<AuString> const * specifiedSearchPaths {};
        AuList<EModulePath> const * searchPath {};
        bool verify {}; // always effectively true if the executable is signed and enableMitigations is true
        bool unixCheckPlusX {};
        bool enableMitigations {true};
    };

    AUKN_SYM bool LoadModule(const ModuleLoadRequest &request);
    AUKN_SYM AuMach GetProcAddress(AuString mod, AuString symbol);
}