mirror of
https://github.com/RPCSX/rpcsx.git
synced 2025-12-06 07:12:14 +01:00
575a245f8d
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.
76 lines
1.5 KiB
C++
76 lines
1.5 KiB
C++
#include "stdafx.h"
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#include "Emu/Memory/vm.h"
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#include "Emu/IdManager.h"
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#include "Emu/Cell/ErrorCodes.h"
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#include "sys_io.h"
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LOG_CHANNEL(sys_io);
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error_code sys_io_buffer_create(u32 block_count, u32 block_size, u32 blocks, u32 unk1, vm::ptr<u32> handle)
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{
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sys_io.todo("sys_io_buffer_create(block_count=0x%x, block_size=0x%x, blocks=0x%x, unk1=0x%x, handle=*0x%x)", block_count, block_size, blocks, unk1, handle);
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if (!handle)
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{
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return CELL_EFAULT;
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}
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if (auto io = idm::make<lv2_io_buf>(block_count, block_size, blocks, unk1))
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{
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*handle = io;
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return CELL_OK;
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}
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return CELL_ESRCH;
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}
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error_code sys_io_buffer_destroy(u32 handle)
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{
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sys_io.todo("sys_io_buffer_destroy(handle=0x%x)", handle);
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idm::remove<lv2_io_buf>(handle);
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return CELL_OK;
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}
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error_code sys_io_buffer_allocate(u32 handle, vm::ptr<u32> block)
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{
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sys_io.todo("sys_io_buffer_allocate(handle=0x%x, block=*0x%x)", handle, block);
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if (!block)
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{
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return CELL_EFAULT;
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}
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if (auto io = idm::get_unlocked<lv2_io_buf>(handle))
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{
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// no idea what we actually need to allocate
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if (u32 addr = vm::alloc(io->block_count * io->block_size, vm::main))
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{
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*block = addr;
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return CELL_OK;
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}
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return CELL_ENOMEM;
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}
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return CELL_ESRCH;
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}
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error_code sys_io_buffer_free(u32 handle, u32 block)
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{
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sys_io.todo("sys_io_buffer_free(handle=0x%x, block=0x%x)", handle, block);
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const auto io = idm::get_unlocked<lv2_io_buf>(handle);
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if (!io)
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{
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return CELL_ESRCH;
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}
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vm::dealloc(block);
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return CELL_OK;
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}
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