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Serialize WASI file descriptor positions in libretro save states

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刘皓 2025-06-28 11:43:18 -04:00
parent 96f39f3913
commit 84d5851aec
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GPG key ID: 7901753DB465B711
1 changed files with 24 additions and 0 deletions
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24
binding-sandbox/wasi.cpp
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@ -189,6 +189,14 @@ bool wasi_t::sandbox_serialize(void *&data, mkxp_sandbox::wasm_size_t &max_size)
if (!::sandbox_serialize((uint8_t)2, data, max_size)) return false;
if (!::sandbox_serialize(entry.file_handle()->root, data, max_size)) return false;
if (!::sandbox_serialize(entry.file_handle()->file.path(), data, max_size)) return false;
{
PHYSFS_File *file = entry.file_handle()->file.get();
if (!::sandbox_serialize(file == nullptr ? (int64_t)0 : std::max((int64_t)0, (int64_t)PHYSFS_tell(file)), data, max_size)) return false;
}
{
PHYSFS_File *file = entry.file_handle()->file.get_write();
if (!::sandbox_serialize(file == nullptr ? (int64_t)0 : std::max((int64_t)0, (int64_t)PHYSFS_tell(file)), data, max_size)) return false;
}
} else {
++num_free_handles;
}
@ -274,6 +282,22 @@ bool wasi_t::sandbox_deserialize(const void *&data, mkxp_sandbox::wasm_size_t &m
return false;
}
fdtable[i] = {handle, wasi_fd_type::FSFILE};
{
PHYSFS_File *file = handle->file.get();
int64_t pos;
if (!::sandbox_deserialize(pos, data, max_size)) return false;
if (pos > 0) {
PHYSFS_seek(file, pos);
}
}
{
PHYSFS_File *file = handle->file.get_write();
int64_t pos;
if (!::sandbox_deserialize(pos, data, max_size)) return false;
if (file != nullptr && pos > 0) {
PHYSFS_seek(file, pos);
}
}
} else {
return false;
}