Fix driver implementation

This commit is contained in:
EnderIce2
2024-07-07 03:14:54 +03:00
parent 3e5177d375
commit 51ea074b60
29 changed files with 3069 additions and 1510 deletions

View File

@ -26,30 +26,140 @@
namespace vfs
{
FileNode *Virtual::__CacheRecursiveSearch(FileNode *Root, const char *NameOrPath, bool IsName)
FileNode *Virtual::CacheSearchReturnLast(FileNode *Parent, const char **Path)
{
assert(Parent != nullptr);
struct cwk_segment segment;
if (!cwk_path_get_first_segment(*Path, &segment))
ReturnLogError(nullptr, "Failed to get first segment of path");
size_t segments = 0;
while (cwk_path_get_next_segment(&segment))
segments++;
if (segments == 0)
return Parent;
const char *path = *Path;
if (strncmp(path, "\002root-", 6) == 0) /* FIXME: deduce the index */
{
path += 6;
while (*path != '\0' && *path != '\003')
path++;
if (*path == '\003')
path++;
}
else
path = *Path;
FileNode *__Parent = Parent;
if (this->PathIsAbsolute(path))
{
while (__Parent->Parent)
__Parent = __Parent->Parent;
}
cwk_path_get_first_segment(path, &segment);
do
{
std::string segmentName(segment.begin, segment.size);
bool found = false;
for (FileNode *fn : __Parent->Children)
{
if (fn->Name != segmentName)
continue;
cwk_segment __seg = segment;
assert(cwk_path_get_next_segment(&__seg)); /* There's something wrong */
__Parent = fn;
found = true;
break;
}
if (!found)
{
*Path = segment.begin;
break;
}
} while (cwk_path_get_next_segment(&segment));
return __Parent;
}
FileNode *Virtual::CacheRecursiveSearch(FileNode *Root, const char *NameOrPath, bool IsName)
{
if (Root == nullptr)
return nullptr;
if (IsName)
debug("%s cache search for \"%s\" in \"%s\"", IsName ? "Relative" : "Absolute", NameOrPath, Root->Path.c_str());
struct cwk_segment segment;
if (!cwk_path_get_first_segment(NameOrPath, &segment))
ReturnLogError(nullptr, "Failed to get first segment of path");
size_t segments = 0;
while (cwk_path_get_next_segment(&segment))
segments++;
if (IsName && segments == 0)
{
if (strcmp(Root->Name.c_str(), NameOrPath) == 0)
return Root;
for (FileNode *fn : Root->Children)
{
if (fn->Name == NameOrPath)
return fn;
}
ReturnLogError(nullptr, "Failed to find \"%s\" in \"%s\"", NameOrPath, Root->Path.c_str());
}
const char *path = NameOrPath;
if (strncmp(path, "\002root-", 6) == 0) /* FIXME: deduce the index */
{
path += 6;
while (*path != '\0' && *path != '\003')
path++;
if (*path == '\003')
path++;
}
else
path = NameOrPath;
FileNode *__Parent = Root;
if (this->PathIsAbsolute(path))
{
if (strcmp(Root->Path.c_str(), NameOrPath) == 0)
return Root;
/* Get the root if Root is not the root 【・_・?】 */
while (__Parent->Parent)
__Parent = __Parent->Parent;
}
for (const auto &Child : Root->Children)
cwk_path_get_first_segment(path, &segment);
do
{
FileNode *ret = __CacheRecursiveSearch(Child, NameOrPath, IsName);
if (ret)
return ret;
}
std::string segmentName(segment.begin, segment.size);
debug("Failed to find %s in %s", NameOrPath, Root->Path.c_str());
bool found = false;
for (FileNode *fn : __Parent->Children)
{
if (fn->Name != segmentName)
continue;
cwk_segment __seg = segment;
if (!cwk_path_get_next_segment(&__seg))
return fn;
__Parent = fn;
found = true;
break;
}
if (!found)
break;
} while (cwk_path_get_next_segment(&segment));
debug("Failed to find \"%s\" in \"%s\"", NameOrPath, Root->Path.c_str());
return nullptr;
}
@ -57,35 +167,17 @@ namespace vfs
{
FileNode *rootNode = thisProcess ? thisProcess->Info.RootNode : this->GetRoot(0);
FileNode *ret = __CacheRecursiveSearch(rootNode, Path, false);
FileNode *ret = CacheRecursiveSearch(rootNode, Path, false);
if (ret)
return ret;
debug("Path \"%s\" not found", Path);
return nullptr;
__unreachable;
debug("Path \"%s\" not found; attempting to search by segments", Path);
/* FIXME: This may not be the greatest idea */
struct cwk_segment segment;
if (!cwk_path_get_first_segment(Path, &segment))
return __CacheRecursiveSearch(rootNode, Path, true);
do
{
std::string segmentStr(segment.begin, segment.size);
ret = __CacheRecursiveSearch(rootNode, segmentStr.c_str(), true);
if (ret)
return ret;
} while (cwk_path_get_next_segment(&segment));
return nullptr;
}
FileNode *Virtual::CreateCacheNode(FileNode *Parent, Inode *Node, const char *Name, mode_t Mode)
{
FileNode *fn = new FileNode();
FileNode *fn = new FileNode;
fn->Name = Name;
if (Parent)
{
@ -107,7 +199,7 @@ namespace vfs
int Virtual::RemoveCacheNode(FileNode *Node)
{
if (Node == nullptr)
return -1;
return -EINVAL;
if (Node->Parent)
{