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romfs: fix issues in close-during-build

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This commit is contained in:
Michael Scire 2023-05-10 01:18:49 -07:00
parent 0a207d4d2e
commit a9fc5fdab0
3 changed files with 39 additions and 12 deletions
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1
libraries/libvapours/include/vapours/results/fs_results.hpp
View file

@ -43,6 +43,7 @@ namespace ams::fs {
R_DEFINE_ERROR_RANGE(HandledBySystemProcess, 1000, 2999);
R_DEFINE_ERROR_RESULT(PartitionNotFound, 1001);
R_DEFINE_ERROR_RESULT(TargetNotFound, 1002);
R_DEFINE_ERROR_RESULT(NcaExternalKeyNotFound, 1004);
R_DEFINE_ERROR_RANGE(SdCardAccessFailed, 2000, 2499);
R_DEFINE_ERROR_RESULT(SdCardNotPresent, 2001);

4
stratosphere/ams_mitm/source/fs_mitm/fsmitm_layered_romfs_storage.cpp
View file

@ -259,8 +259,8 @@ namespace ams::mitm::fs {
}
void FinalizeLayeredRomfsStorage(ncm::ProgramId program_id) {
std::scoped_lock lk(g_storage_set_mutex);
std::scoped_lock lk2(g_initialization_mutex);
std::scoped_lock lk(g_initialization_mutex);
std::scoped_lock lk2(g_storage_set_mutex);
/* Find an existing storage. */
if (auto it = g_storage_set.find_key(program_id.value); it != g_storage_set.end()) {

46
stratosphere/ams_mitm/source/fs_mitm/fsmitm_romfs.cpp
View file

@ -228,21 +228,33 @@ namespace ams::mitm::fs {
size_t m_cache_idx;
u8 m_fallback_cache[FallbackCacheSize];
private:
ALWAYS_INLINE void Read(size_t ofs, void *dst, size_t size) {
R_ABORT_UNLESS(m_storage->Read(m_offset + ofs, dst, size));
ALWAYS_INLINE bool Read(size_t ofs, void *dst, size_t size) {
R_TRY_CATCH(m_storage->Read(m_offset + ofs, dst, size)) {
R_CATCH(fs::ResultNcaExternalKeyNotFound) { return false; }
} R_END_TRY_CATCH_WITH_ABORT_UNLESS;
return true;
}
ALWAYS_INLINE void ReloadCacheImpl(size_t idx) {
ALWAYS_INLINE bool ReloadCacheImpl(size_t idx) {
const size_t rel_ofs = idx * this->GetCacheSize();
AMS_ABORT_UNLESS(rel_ofs < m_size);
const size_t new_cache_size = std::min(m_size - rel_ofs, this->GetCacheSize());
this->Read(rel_ofs, m_cache, new_cache_size);
m_cache_idx = idx;
if (!this->Read(rel_ofs, m_cache, new_cache_size)) {
return false;
}
ALWAYS_INLINE void ReloadCache(size_t idx) {
if (m_cache_idx != idx) {
this->ReloadCacheImpl(idx);
m_cache_idx = idx;
return true;
}
ALWAYS_INLINE bool ReloadCache(size_t idx) {
if (m_cache_idx != idx) {
if (!this->ReloadCacheImpl(idx)) {
return false;
}
}
return true;
}
ALWAYS_INLINE size_t GetCacheIndex(u32 ofs) {
@ -255,13 +267,18 @@ namespace ams::mitm::fs {
}
const Entry *GetEntry(u32 entry_offset) {
this->ReloadCache(this->GetCacheIndex(entry_offset));
if (!this->ReloadCache(this->GetCacheIndex(entry_offset))) {
return nullptr;
}
const size_t ofs = entry_offset % this->GetCacheSize();
const Entry *entry = reinterpret_cast<const Entry *>(reinterpret_cast<uintptr_t>(m_cache) + ofs);
if (AMS_UNLIKELY(this->GetCacheIndex(entry_offset) != this->GetCacheIndex(entry_offset + sizeof(Entry) + entry->name_size + sizeof(u32)))) {
this->Read(entry_offset, m_fallback_cache, std::min(m_size - entry_offset, FallbackCacheSize));
if (!this->Read(entry_offset, m_fallback_cache, std::min(m_size - entry_offset, FallbackCacheSize))) {
return nullptr;
}
entry = reinterpret_cast<const Entry *>(m_fallback_cache);
}
return entry;
@ -528,10 +545,16 @@ namespace ams::mitm::fs {
void Builder::VisitDirectory(BuildDirectoryContext *parent, u32 parent_offset, DirectoryTableReader &dir_table, FileTableReader &file_table) {
const DirectoryEntry *parent_entry = dir_table.GetEntry(parent_offset);
if (AMS_UNLIKELY(parent_entry == nullptr)) {
return;
}
u32 cur_file_offset = parent_entry->file;
while (cur_file_offset != EmptyEntry) {
const FileEntry *cur_file = file_table.GetEntry(cur_file_offset);
if (AMS_UNLIKELY(cur_file == nullptr)) {
return;
}
this->AddFile(parent, std::unique_ptr<BuildFileContext>(AllocateTyped<BuildFileContext>(AllocationType_BuildFileContext, cur_file->name, cur_file->name_size, cur_file->size, cur_file->offset, m_cur_source_type)));
@ -544,6 +567,9 @@ namespace ams::mitm::fs {
u32 next_child_offset = 0;
{
const DirectoryEntry *cur_child = dir_table.GetEntry(cur_child_offset);
if (AMS_UNLIKELY(cur_child == nullptr)) {
return;
}
this->AddDirectory(std::addressof(real_child), parent, std::unique_ptr<BuildDirectoryContext>(AllocateTyped<BuildDirectoryContext>(AllocationType_BuildDirContext, cur_child->name, cur_child->name_size)));
AMS_ABORT_UNLESS(real_child != nullptr);