J Reece Wilson
fd0c5b51b2
[+] Begin work on IO futexes for io release on process/thread exit [+] Linux ::readdir iteration [+] AuConsole buffering API [*] Fix sleep as to not get interrupted by signals [*] Switch the type of FS lock used under Linux [*] Linux: Use new IPCHandle encoding scheme [*] Fix undefined behaviour: unintialized timeout values (AuLoop/Linux) [*] Fix undefined behaviour: ConsoleTTY clear line was called of a color of a random value on stack [-] Remainings of std dir iterator [*] Fix pthread_kill (aka send signal to pthread handle) always kills process. This is what you expect bc signal handler inheritance. [*] Reformat the build Aurora.json file [+] Added clang warning ignores to the build file [*] Fix: UNIX need to use STDOUT_FILENO. Was using CRT handle in place of fd by mistake. [+] Linux implementation for IO yield (AuIO::IOYield() - UNIX::LinuxOverlappedYield()) [*] Fix: Linux async end of stream processing. res 0 = zero bytes consumed. <= was detecting this as an error of code 0. Should succeed with zero bytes. [+] Linux LoopQueue missing epilogue hook for the IO processor [*] Various refactors and minor bug fixes [*] Linux fix: Handle pipe EOS as zero [*] Linux fix: thread termination via a user signal of 77. Need a force terminate. [*] IPC handle: fix improper int to bool cast in the header setup within ToString [*] Linux fix: HWInfo CPU topology regression [-] Linux fix: remove SIGABRT handler [*] Missing override in compression, exit, and consoletty headers. [+] Unix Syslog logger backend
169 lines
4.3 KiB
C++
169 lines
4.3 KiB
C++
/***
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Copyright (C) 2022 J Reece Wilson (a/k/a "Reece"). All rights reserved.
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File: IPCMemory.Unix.cpp
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Date: 2022-4-14
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Author: Reece
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***/
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#include <Source/RuntimeInternal.hpp>
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#include "IPC.hpp"
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#include "IPCHandle.hpp"
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#include "IPCMemory.Unix.hpp"
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#include <sys/mman.h>
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#include <sys/stat.h> /* For mode constants */
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#include <fcntl.h> /* For O_* constants */
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#if defined(AURORA_IS_LINUX_DERIVED)
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#include "IPCMutexFutex.Linux.hpp" /* For import */
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#endif
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namespace Aurora::IO::IPC
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{
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//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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// Shared memory
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//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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static AuString GetServerPath(const IPC::IPCToken &handle)
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{
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AuString path;
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path += "/AURORA_";
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path += AuToString(AuUInt32(handle.cookie));
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path += "_";
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path += AuToString(AuUInt32(handle.pid));
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return path;
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}
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IPCSharedMemoryImpl::IPCSharedMemoryImpl(int fd, void *ptr, const IPC::IPCHandle &handle, bool owns) :
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fd_(fd), base_(ptr), len_(handle.values[0].token.word), owns_(owns), handle_(handle)
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{
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}
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IPCSharedMemoryImpl::~IPCSharedMemoryImpl()
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{
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if (this->base_)
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{
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::munmap(this->base_, this->len_);
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}
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int fd {-1};
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if ((fd = AuExchange(this->fd_, -1)) != -1)
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{
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::close(fd);
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}
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}
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Memory::MemoryViewWrite IPCSharedMemoryImpl::GetMemory()
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{
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return AuMemoryViewWrite(this->base_, this->len_);
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}
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AuUInt IPCSharedMemoryImpl::GetLength()
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{
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return this->len_;
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}
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AuString IPCSharedMemoryImpl::ExportToString()
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{
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return this->handle_.ToString();
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}
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AUKN_SYM AuSPtr<IPCSharedMemory> NewSharedMemory(AuUInt length)
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{
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IPC::IPCHandle handle;
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IPC::IPCToken token;
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token.pid = handle.pid;
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token.word = length;
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token.NewId();
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handle.PushId(EIPCHandleType::eIPCMemory, token);
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auto path = GetServerPath(token);
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int fd = ::shm_open(path.c_str(), O_RDWR | O_CREAT, S_IRUSR | S_IWUSR);
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if (fd == -1)
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{
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SysPushErrorIO();
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return {};
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}
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if (::ftruncate(fd, length) == -1)
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{
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SysPushErrorMem();
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::close(fd);
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return {};
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}
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auto map = ::mmap(nullptr, length, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
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if (map == MAP_FAILED)
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{
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SysPushErrorIO();
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::close(fd);
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return {};
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}
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auto object = AuMakeShared<IPCSharedMemoryImpl>(fd, map, handle, true);
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if (!object)
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{
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SysPushErrorMem();
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::munmap(map, length);
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::close(fd);
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return {};
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}
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return object;
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}
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AuSPtr<IPCSharedMemory> ImportSharedMemoryEx(const IPCToken &token)
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{
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auto path = GetServerPath(token);
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int fd = ::shm_open(path.c_str(), O_RDWR, S_IRUSR | S_IWUSR);
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if (fd == -1)
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{
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SysPushErrorIO();
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return {};
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}
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auto map = ::mmap(nullptr, token.word, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
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if (map == MAP_FAILED)
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{
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SysPushErrorIO();
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::close(fd);
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return {};
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}
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IPC::IPCHandle handle;
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handle.PushId(EIPCHandleType::eIPCMemory, token);
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auto object = AuMakeShared<IPCSharedMemoryImpl>(fd, map, handle, false);
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if (!object)
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{
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SysPushErrorMem();
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::munmap(map, token.word);
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::close(fd);
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return {};
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}
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return object;
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}
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AUKN_SYM AuSPtr<IPCSharedMemory> ImportSharedMemory(const AuString &handleString)
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{
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IPC::IPCHandle handle;
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if (!handle.FromString(handleString))
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{
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SysPushErrorParseError("Invalid handle: {}", handleString);
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return {};
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}
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auto val = handle.GetToken(IPC::EIPCHandleType::eIPCMemory, 0);
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if (!val)
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{
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SysPushErrorParseError("Invalid handle: {}", handleString);
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return {};
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}
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return ImportSharedMemoryEx(val->token);
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}
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} |