MaxOS::filesystem::VFSResourceRegistry Class Reference

A resource registry for both Files & Directories. More...

#include <vfsresource.h>

Inheritance diagram for MaxOS::filesystem::VFSResourceRegistry:

Public Member Functions
	VFSResourceRegistry (VirtualFileSystem *vfs)
	Construct a new VFS Resource Registry object.
processes::Resource *	get_resource (const string &name) final
	Gets a resource from the registry by name.
processes::Resource *	create_resource (const string &name, size_t flags) final
	Try to create a new resource with the specified name, will fail if the name is in use.

Detailed Description

A resource registry for both Files & Directories.

Definition at line 72 of file vfsresource.h.

Constructor & Destructor Documentation

VFSResourceRegistry()

VFSResourceRegistry::VFSResourceRegistry ( VirtualFileSystem *  vfs )

explicit

Construct a new VFS Resource Registry object.

Parameters

vfs	The virtual file system to use

Definition at line 324 of file vfsresource.cpp.

: BaseResourceRegistry(resource_type_t::FILESYSTEM),
  m_vfs(vfs)
{
 
}

Member Function Documentation

create_resource()

Resource * VFSResourceRegistry::create_resource ( const string &  name, size_t  flags  )

finalvirtual

Try to create a new resource with the specified name, will fail if the name is in use.

Parameters

name	The name of the resource to create
flags	Optional flags to pass (unused by default but registry type specific)

Returns

The resource created or nullptr if failed to create the resource

Reimplemented from MaxOS::processes::BaseResourceRegistry.

Definition at line 394 of file vfsresource.cpp.

                                                                               {
 
    string path = Path::absolute_path(name);
    path = Path::join_path(GlobalScheduler::current_process()->working_directory, path);
 
    // Resource already opened
    auto resource = BaseResourceRegistry::get_resource(path);
    if(resource != nullptr)
        return resource;
 
    // Open the resource
    bool is_file = Path::is_file(path);
    if(is_file)
        return open_as_resource(path, m_vfs->create_file(path));
    else
        return open_as_resource(path, m_vfs->create_directory(path));
 
}

References MaxOS::filesystem::Path::absolute_path(), MaxOS::filesystem::VirtualFileSystem::create_directory(), MaxOS::filesystem::VirtualFileSystem::create_file(), MaxOS::processes::GlobalScheduler::current_process(), MaxOS::processes::BaseResourceRegistry::get_resource(), MaxOS::filesystem::Path::is_file(), and MaxOS::filesystem::Path::join_path().

get_resource()

Resource * VFSResourceRegistry::get_resource ( const string &  name )

finalvirtual

Gets a resource from the registry by name.

Parameters

name	The name of the resource to find

Returns

The resource or nullptr if the resource was not found

Reimplemented from MaxOS::processes::BaseResourceRegistry.

Definition at line 376 of file vfsresource.cpp.

                                                              {
 
    string path = Path::absolute_path(name);
    path = Path::join_path(GlobalScheduler::current_process()->working_directory, path);
 
    // Resource already opened
    auto resource = BaseResourceRegistry::get_resource(path);
    if(resource != nullptr)
        return resource;
 
    // Open the resource
    bool is_file = Path::is_file(path);
    if(is_file)
        return open_as_resource(path, m_vfs->open_file(path));
    else
        return open_as_resource(path, m_vfs->open_directory(path));
}

References MaxOS::filesystem::Path::absolute_path(), MaxOS::processes::GlobalScheduler::current_process(), MaxOS::processes::BaseResourceRegistry::get_resource(), MaxOS::filesystem::Path::is_file(), MaxOS::filesystem::Path::join_path(), MaxOS::filesystem::VirtualFileSystem::open_directory(), and MaxOS::filesystem::VirtualFileSystem::open_file().

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The documentation for this class was generated from the following files:

• /home/runner/work/MaxOS/MaxOS/kernel/include/filesystem/vfsresource.h
• /home/runner/work/MaxOS/MaxOS/kernel/src/filesystem/vfsresource.cpp