rpcsx/rpcs3/Emu/Cell/lv2/sys_net/lv2_socket_raw.cpp
Elad 575a245f8d
IDM: Implement lock-free smart pointers (#16403)
Replaces `std::shared_pointer` with `stx::atomic_ptr` and `stx::shared_ptr`.

Notes to programmers:

* This pr kills the use of `dynamic_cast`, `std::dynamic_pointer_cast` and `std::weak_ptr` on IDM objects, possible replacement is to save the object ID on the base object, then use idm::check/get_unlocked to the destination type via the saved ID which may be null. Null pointer check is how you can tell type mismatch (as dynamic cast) or object destruction (as weak_ptr locking).
* Double-inheritance on IDM objects should be used with care, `stx::shared_ptr` does not support constant-evaluated pointer offsetting to parent/child type.
* `idm::check/get_unlocked` can now be used anywhere.

Misc fixes:
* Fixes some segfaults with RPCN with interaction with IDM.
* Fix deadlocks in access violation handler due locking recursion.
* Fixes race condition in process exit-spawn on memory containers read.
* Fix bug that theoretically can prevent RPCS3 from booting - fix `id_manager::typeinfo` comparison to compare members instead of `memcmp` which can fail spuriously on padding bytes.
* Ensure all IDM inherited types of base, either has `id_base` or `id_type` defined locally, this allows to make getters such as `idm::get_unlocked<lv2_socket, lv2_socket_raw>()` which were broken before. (requires save-states invalidation)
* Removes broken operator[] overload of `stx::shared_ptr` and `stx::single_ptr` for non-array types.
2024-12-22 20:59:48 +02:00

148 lines
3.9 KiB
C++

#include "stdafx.h"
#include "lv2_socket_raw.h"
#include "Emu/NP/vport0.h"
LOG_CHANNEL(sys_net);
template <typename T>
struct socket_raw_logging
{
socket_raw_logging() = default;
socket_raw_logging(const socket_raw_logging&) = delete;
socket_raw_logging& operator=(const socket_raw_logging&) = delete;
atomic_t<bool> logged = false;
};
#define LOG_ONCE(raw_var, message) \
if (!g_fxo->get<socket_raw_logging<class raw_var>>().logged.exchange(true)) \
{ \
sys_net.todo(message); \
}
lv2_socket_raw::lv2_socket_raw(lv2_socket_family family, lv2_socket_type type, lv2_ip_protocol protocol)
: lv2_socket(family, type, protocol)
{
}
lv2_socket_raw::lv2_socket_raw(utils::serial& ar, lv2_socket_type type)
: lv2_socket(stx::make_exact(ar), type)
{
}
void lv2_socket_raw::save(utils::serial& ar)
{
lv2_socket::save(ar, true);
}
std::tuple<bool, s32, shared_ptr<lv2_socket>, sys_net_sockaddr> lv2_socket_raw::accept([[maybe_unused]] bool is_lock)
{
sys_net.fatal("[RAW] accept() called on a RAW socket");
return {};
}
std::optional<s32> lv2_socket_raw::connect([[maybe_unused]] const sys_net_sockaddr& addr)
{
sys_net.fatal("[RAW] connect() called on a RAW socket");
return CELL_OK;
}
s32 lv2_socket_raw::connect_followup()
{
sys_net.fatal("[RAW] connect_followup() called on a RAW socket");
return CELL_OK;
}
std::pair<s32, sys_net_sockaddr> lv2_socket_raw::getpeername()
{
LOG_ONCE(raw_getpeername, "[RAW] getpeername() called on a RAW socket");
return {};
}
s32 lv2_socket_raw::listen([[maybe_unused]] s32 backlog)
{
LOG_ONCE(raw_listen, "[RAW] listen() called on a RAW socket");
return {};
}
s32 lv2_socket_raw::bind([[maybe_unused]] const sys_net_sockaddr& addr)
{
LOG_ONCE(raw_bind, "lv2_socket_raw::bind");
return {};
}
std::pair<s32, sys_net_sockaddr> lv2_socket_raw::getsockname()
{
LOG_ONCE(raw_getsockname, "lv2_socket_raw::getsockname");
return {};
}
std::tuple<s32, lv2_socket::sockopt_data, u32> lv2_socket_raw::getsockopt([[maybe_unused]] s32 level, [[maybe_unused]] s32 optname, [[maybe_unused]] u32 len)
{
LOG_ONCE(raw_getsockopt, "lv2_socket_raw::getsockopt");
return {};
}
s32 lv2_socket_raw::setsockopt(s32 level, s32 optname, const std::vector<u8>& optval)
{
LOG_ONCE(raw_setsockopt, "lv2_socket_raw::setsockopt");
// TODO
int native_int = *reinterpret_cast<const be_t<s32>*>(optval.data());
if (level == SYS_NET_SOL_SOCKET && optname == SYS_NET_SO_NBIO)
{
so_nbio = native_int;
}
return {};
}
std::optional<std::tuple<s32, std::vector<u8>, sys_net_sockaddr>> lv2_socket_raw::recvfrom(s32 flags, [[maybe_unused]] u32 len, [[maybe_unused]] bool is_lock)
{
LOG_ONCE(raw_recvfrom, "lv2_socket_raw::recvfrom");
if (so_nbio || (flags & SYS_NET_MSG_DONTWAIT))
{
return {{-SYS_NET_EWOULDBLOCK, {}, {}}};
}
return {};
}
std::optional<s32> lv2_socket_raw::sendto([[maybe_unused]] s32 flags, [[maybe_unused]] const std::vector<u8>& buf, [[maybe_unused]] std::optional<sys_net_sockaddr> opt_sn_addr, [[maybe_unused]] bool is_lock)
{
LOG_ONCE(raw_sendto, "lv2_socket_raw::sendto");
return ::size32(buf);
}
std::optional<s32> lv2_socket_raw::sendmsg([[maybe_unused]] s32 flags, [[maybe_unused]] const sys_net_msghdr& msg, [[maybe_unused]] bool is_lock)
{
LOG_ONCE(raw_sendmsg, "lv2_socket_raw::sendmsg");
return {};
}
void lv2_socket_raw::close()
{
LOG_ONCE(raw_close, "lv2_socket_raw::close");
}
s32 lv2_socket_raw::shutdown([[maybe_unused]] s32 how)
{
LOG_ONCE(raw_shutdown, "lv2_socket_raw::shutdown");
return {};
}
s32 lv2_socket_raw::poll([[maybe_unused]] sys_net_pollfd& sn_pfd, [[maybe_unused]] pollfd& native_pfd)
{
LOG_ONCE(raw_poll, "lv2_socket_raw::poll");
return {};
}
std::tuple<bool, bool, bool> lv2_socket_raw::select([[maybe_unused]] bs_t<lv2_socket::poll_t> selected, [[maybe_unused]] pollfd& native_pfd)
{
LOG_ONCE(raw_select, "lv2_socket_raw::select");
return {};
}