MaxOS::processes::resources::ThreadResourceRegistry Class Reference

Manages the creation, retention and destruction of resources representing threads. More...

#include <scheduler_resources.h>

Inheritance diagram for MaxOS::processes::resources::ThreadResourceRegistry:

Public Member Functions
Resource *	get_resource (const string &name) final
	Gets a resource from the registry by name.
Resource *	create_resource (const string &name, size_t flags, uintptr_t data) final
	td
Public Member Functions inherited from MaxOS::processes::resources::ResourceRegistry< ThreadResource >
	ResourceRegistry (resource_type_t type)
	Constructor for ResourceRegistry of a specific type.
Public Member Functions inherited from MaxOS::processes::resources::BaseResourceRegistry
	BaseResourceRegistry (resource_type_t type)
	Constructs a new BaseResourceRegistry object and registers it globally.
	~BaseResourceRegistry ()
	Destructor for BaseResourceRegistry, removes it from the global list.
resource_type_t	type ()
	Gets the type of resources this registry handles.
bool	register_resource (Resource *resource)
	Registers a resource in the registry.
void	close_resource (Resource *resource, size_t flags)
	Close the resource provided, if it exists in this registry.

Additional Inherited Members
Protected Attributes inherited from MaxOS::processes::resources::BaseResourceRegistry
common::Map< string, Resource * >	m_resources
	The map of resource names to resource instances.
common::Map< string, uint64_t >	m_resource_uses
	The map of resource names to how many processes are using them.
common::Spinlock	m_lock
	The lock to make the registry threadsafe.
resource_type_t	m_type
	The resource type that this registry manages.

Detailed Description

Manages the creation, retention and destruction of resources representing threads.

Definition at line 79 of file scheduler_resources.h.

Constructor & Destructor Documentation

ThreadResourceRegistry()

ThreadResourceRegistry::ThreadResourceRegistry

(

)

Definition at line 302 of file scheduler_resources.cpp.

: ResourceRegistry<ThreadResource>(resource_type_t::THREAD)
{
 
}

Member Function Documentation

create_resource()

Resource * ThreadResourceRegistry::create_resource ( const string &  name, size_t  flags, uintptr_t  data  )

finalvirtual

td

Parameters

name	td
flags	td

Returns

td

Todo:

Implement opening threads

Reimplemented from MaxOS::processes::resources::ResourceRegistry< ThreadResource >.

Definition at line 316 of file scheduler_resources.cpp.

                                                                                                  {
 
    return ResourceRegistry::create_resource(name, flags, data);
}

References MaxOS::processes::resources::ResourceRegistry< Type >::create_resource().

get_resource()

Resource * ThreadResourceRegistry::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::resources::BaseResourceRegistry.

Definition at line 321 of file scheduler_resources.cpp.

                                                                 {
 
    // Resource already opened
    auto resource = BaseResourceRegistry::get_resource(name);
    if(resource != nullptr)
        return resource;
 
    // Get the thread
    uint64_t tid = name.to_int();
    auto thread = name == "this" ? GlobalScheduler::current_thread() : GlobalScheduler::get_thread(tid);
 
    // Self refrence may already be open
    resource = BaseResourceRegistry::get_resource(string(thread -> tid));
    if(resource != nullptr)
        return resource;
 
    // Create the resource
    auto thread_resource = new ThreadResource(string(thread -> tid), 0, resource_type_t::PROCESS);
    thread_resource->thread = thread;
 
    register_resource(thread_resource);
    return thread_resource;
}

References MaxOS::processes::GlobalScheduler::current_thread(), MaxOS::processes::resources::BaseResourceRegistry::get_resource(), MaxOS::processes::GlobalScheduler::get_thread(), and MaxOS::processes::resources::BaseResourceRegistry::register_resource().

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

• /home/runner/work/MaxOS/MaxOS/kernel/include/processes/resources/scheduler_resources.h
• /home/runner/work/MaxOS/MaxOS/kernel/src/processes/resources/scheduler_resources.cpp