An entry in CLL/RLL for system transactions. More...

Detailed Description

An entry in CLL/RLL for system transactions.

Analogous to LockEntry, but a bit different because system transactions also take page locks.

Definition at line 80 of file sysxct_impl.hpp.

#include <sysxct_impl.hpp>

Classes
struct	LessThan
	for std::binary_search() etc without creating the object More...

Public Member Functions
void	clear ()

void	set (UniversalLockId lock_id, uintptr_t lock, bool page_lock)

RwLockableXctId *	get_as_record_lock () const

storage::Page *	get_as_page_lock () const

bool	is_locked () const

bool	operator< (const SysxctLockEntry &rhs) const

Public Attributes
UniversalLockId	universal_lock_id_
	Used to order locks in canonical order. More...

uintptr_t	lock_
	Virtual address of a record lock. More...

McsBlockIndex	mcs_block_
	0 means the lock not taken. More...

bool	page_lock_
	Whether this is a pge lock or not. More...

bool	used_in_this_run_
	whether the lock was requested at least once in this run. More...

Friends
std::ostream &	operator<< (std::ostream &o, const SysxctLockEntry &v)
	Debugging. More...

Member Function Documentation

void foedus::xct::SysxctLockEntry::clear ( )

inline

Definition at line 109 of file sysxct_impl.hpp.

References foedus::xct::kNullUniversalLockId.

                {
     universal_lock_id_ = 0;
     lock_ = kNullUniversalLockId;
     mcs_block_ = 0;
     page_lock_ = false;
     used_in_this_run_ = false;
   }

storage::Page* foedus::xct::SysxctLockEntry::get_as_page_lock ( ) const

inline

Definition at line 129 of file sysxct_impl.hpp.

References ASSERT_ND, and lock_.

Referenced by foedus::xct::operator<<().

                                         {
     ASSERT_ND(page_lock_);
     return reinterpret_cast<storage::Page*>(lock_);
   }

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RwLockableXctId* foedus::xct::SysxctLockEntry::get_as_record_lock ( ) const

inline

Definition at line 125 of file sysxct_impl.hpp.

References ASSERT_ND, and lock_.

Referenced by foedus::xct::operator<<().

                                               {
     ASSERT_ND(!page_lock_);
     return reinterpret_cast<RwLockableXctId*>(lock_);
   }

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bool foedus::xct::SysxctLockEntry::is_locked ( ) const

inline

Definition at line 134 of file sysxct_impl.hpp.

134 { return mcs_block_ != 0; }

foedus::xct::SysxctLockEntry::mcs_block_

McsBlockIndex mcs_block_

0 means the lock not taken.

Definition: sysxct_impl.hpp:98

bool foedus::xct::SysxctLockEntry::operator< ( const SysxctLockEntry & rhs ) const

inline

Definition at line 136 of file sysxct_impl.hpp.

References universal_lock_id_.

                                                    {
     return universal_lock_id_ < rhs.universal_lock_id_;
   }

void foedus::xct::SysxctLockEntry::set	(	UniversalLockId	lock_id,
		uintptr_t	lock,
		bool	page_lock
	)

inline

Definition at line 117 of file sysxct_impl.hpp.

Referenced by foedus::xct::SysxctLockList::batch_get_or_add_entries(), and foedus::xct::SysxctLockList::get_or_add_entry().

                                                                     {
     universal_lock_id_ = lock_id;
     lock_ = lock;
     mcs_block_ = 0;
     page_lock_ = page_lock;
     used_in_this_run_ = true;
   }

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Friends And Related Function Documentation

std::ostream& operator<<	(	std::ostream &	o,
		const SysxctLockEntry &	v
	)

friend

Debugging.

Definition at line 35 of file sysxct_impl.cpp.

                                                                 {
   o << "<SysxctLockEntry>"
     << "<LockId>" << v.universal_lock_id_ << "</LockId>"
     << "<used>" << v.used_in_this_run_ << "</used>";
   if (v.mcs_block_) {
     o << "<mcs_block_>" << v.mcs_block_ << "</mcs_block_>";
     if (v.page_lock_) {
       o << v.get_as_page_lock()->get_header();
     } else {
       o << *(v.get_as_record_lock());
     }
   } else {
     o << "<NotLocked />";
   }
   o << "</SysxctLockEntry>";
   return o;
 }

Member Data Documentation

uintptr_t foedus::xct::SysxctLockEntry::lock_

Virtual address of a record lock.

Either this or the page_lock is non-null. Either RwLockableXctId* or Page*

Definition at line 91 of file sysxct_impl.hpp.

Referenced by get_as_page_lock(), and get_as_record_lock().

McsBlockIndex foedus::xct::SysxctLockEntry::mcs_block_

0 means the lock not taken.

Definition at line 98 of file sysxct_impl.hpp.

Referenced by foedus::xct::operator<<().

bool foedus::xct::SysxctLockEntry::page_lock_

Whether this is a pge lock or not.

Definition at line 101 of file sysxct_impl.hpp.

Referenced by foedus::xct::operator<<().

UniversalLockId foedus::xct::SysxctLockEntry::universal_lock_id_

Used to order locks in canonical order.

So far universal_lock_id_ == reinterpret_cast<uintptr_t>(lock_).

Definition at line 85 of file sysxct_impl.hpp.

Referenced by foedus::xct::SysxctLockList::batch_get_or_add_entries(), foedus::xct::SysxctLockList::is_try_mode_required(), foedus::xct::SysxctLockEntry::LessThan::operator()(), operator<(), and foedus::xct::operator<<().

bool foedus::xct::SysxctLockEntry::used_in_this_run_

whether the lock was requested at least once in this run.

If false, we will not include this lock in next run.

Definition at line 107 of file sysxct_impl.hpp.

Referenced by foedus::xct::SysxctLockList::compress_entries(), and foedus::xct::operator<<().

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

/home/shino/foedus_code/foedus-core/include/foedus/xct/sysxct_impl.hpp

Detailed Description

Classes

Public Member Functions

Public Attributes

Friends

Member Function Documentation

Friends And Related Function Documentation

Member Data Documentation