Aleph::detail::Pid_File_Lock Class Reference

#include <tpl_paged_tree_durability.H>

Collaboration diagram for Aleph::detail::Pid_File_Lock:

Classes
struct	Local_Lock_State

Public Member Functions
	Pid_File_Lock ()=default
	Pid_File_Lock (const Pid_File_Lock &)=delete
Pid_File_Lock &	operator= (const Pid_File_Lock &)=delete
	Pid_File_Lock (Pid_File_Lock &&)=delete
Pid_File_Lock &	operator= (Pid_File_Lock &&)=delete
	~Pid_File_Lock () noexcept
void	acquire (const std::string &path, const char *kind, const Pid_File_Lock_Mode mode=Pid_File_Lock_Mode::Exclusive)
void	release () noexcept

Static Private Member Functions
static std::mutex &	registry_mutex ()
static std::vector< Local_Lock_State > &	registry ()
static void	register_path (const std::string &path, const Pid_File_Lock_Mode mode, const char *kind)
static void	unregister_path (const std::string &path, const Pid_File_Lock_Mode mode) noexcept
static bool	stale_lock (const std::string &path)

Private Attributes
std::string	path_
bool	acquired_ = false
Pid_File_Lock_Mode	mode_ = Pid_File_Lock_Mode::Exclusive

Detailed Description

Definition at line 268 of file tpl_paged_tree_durability.H.

Constructor & Destructor Documentation

Pid_File_Lock() [1/3]

Aleph::detail::Pid_File_Lock::Pid_File_Lock ( )

default

Pid_File_Lock() [2/3]

Aleph::detail::Pid_File_Lock::Pid_File_Lock ( const Pid_File_Lock &  )

delete

Pid_File_Lock() [3/3]

Aleph::detail::Pid_File_Lock::Pid_File_Lock ( Pid_File_Lock &&  )

delete

~Pid_File_Lock()

Aleph::detail::Pid_File_Lock::~Pid_File_Lock ( )

inlinenoexcept

Definition at line 420 of file tpl_paged_tree_durability.H.

References release().

Member Function Documentation

acquire()

void Aleph::detail::Pid_File_Lock::acquire ( const std::string &  path, const char *  kind, const Pid_File_Lock_Mode  mode = Pid_File_Lock_Mode::Exclusive  )

inline

Definition at line 425 of file tpl_paged_tree_durability.H.

References acquired_, ah_runtime_error, ah_runtime_error_unless, Aleph::detail::current_process_id(), Aleph::divide_and_conquer_partition_dp(), Aleph::mode(), mode_, path_, register_path(), release(), Aleph::detail::remove_file_if_exists(), stale_lock(), and unregister_path().

Referenced by Aleph::Gen_File_B_Tree< Key, Compare, MinDegree, Codec >::Gen_File_B_Tree(), and Aleph::Gen_File_BPlus_Tree< Key, Compare, MinDegree, Codec >::Gen_File_BPlus_Tree().

operator=() [1/2]

Pid_File_Lock & Aleph::detail::Pid_File_Lock::operator= ( const Pid_File_Lock &  )

delete

operator=() [2/2]

Pid_File_Lock & Aleph::detail::Pid_File_Lock::operator= ( Pid_File_Lock &&  )

delete

register_path()

static void Aleph::detail::Pid_File_Lock::register_path ( const std::string &  path, const Pid_File_Lock_Mode  mode, const char *  kind  )

inlinestaticprivate

Definition at line 296 of file tpl_paged_tree_durability.H.

References ah_runtime_error, ah_runtime_error_unless, Aleph::divide_and_conquer_partition_dp(), Aleph::detail::Exclusive, Aleph::detail::Pid_File_Lock::Local_Lock_State::exclusive, Aleph::mode(), Aleph::detail::Pid_File_Lock::Local_Lock_State::path, registry(), registry_mutex(), Aleph::detail::Shared, and Aleph::detail::Pid_File_Lock::Local_Lock_State::shared_count.

Referenced by acquire().

registry()

static std::vector< Local_Lock_State > & Aleph::detail::Pid_File_Lock::registry ( )

inlinestaticprivate

Definition at line 290 of file tpl_paged_tree_durability.H.

Referenced by register_path(), and unregister_path().

registry_mutex()

static std::mutex & Aleph::detail::Pid_File_Lock::registry_mutex ( )

inlinestaticprivate

Definition at line 284 of file tpl_paged_tree_durability.H.

Referenced by register_path(), and unregister_path().

release()

void Aleph::detail::Pid_File_Lock::release ( )

inlinenoexcept

Definition at line 494 of file tpl_paged_tree_durability.H.

References acquired_, Aleph::and, Aleph::divide_and_conquer_partition_dp(), Aleph::detail::Exclusive, mode_, path_, Aleph::detail::sync_parent_directory(), and unregister_path().

Referenced by ~Pid_File_Lock(), and acquire().

stale_lock()

static bool Aleph::detail::Pid_File_Lock::stale_lock ( const std::string &  path )

inlinestaticprivate

Definition at line 356 of file tpl_paged_tree_durability.H.

References Aleph::divide_and_conquer_partition_dp(), and Aleph::detail::process_is_alive().

Referenced by acquire().

unregister_path()

static void Aleph::detail::Pid_File_Lock::unregister_path ( const std::string &  path, const Pid_File_Lock_Mode  mode  )

inlinestaticprivatenoexcept

Definition at line 331 of file tpl_paged_tree_durability.H.

References Aleph::and, Aleph::divide_and_conquer_partition_dp(), Aleph::mode(), registry(), registry_mutex(), and Aleph::detail::Shared.

Referenced by acquire(), and release().

Member Data Documentation

acquired_

bool Aleph::detail::Pid_File_Lock::acquired_ = false

private

Definition at line 278 of file tpl_paged_tree_durability.H.

Referenced by acquire(), and release().

mode_

Pid_File_Lock_Mode Aleph::detail::Pid_File_Lock::mode_ = Pid_File_Lock_Mode::Exclusive

private

Definition at line 279 of file tpl_paged_tree_durability.H.

Referenced by acquire(), and release().

path_

std::string Aleph::detail::Pid_File_Lock::path_

private

Definition at line 277 of file tpl_paged_tree_durability.H.

Referenced by acquire(), and release().

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

• tpl_paged_tree_durability.H