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Catalog_Namespace::write_lock< T > Class Template Reference

#include <RWLocks.h>

Public Member Functions

 write_lock (const T *cat)
 
 ~write_lock ()
 
void unlock ()
 

Private Member Functions

template<typename inner_type >
void lock_catalog (const inner_type *cat)
 

Private Attributes

const T * catalog
 
mapd_unique_lock
< mapd_shared_mutex
lock
 
bool holds_lock
 

Detailed Description

template<typename T>
class Catalog_Namespace::write_lock< T >

Definition at line 106 of file RWLocks.h.

Constructor & Destructor Documentation

template<typename T >
Catalog_Namespace::write_lock< T >::write_lock ( const T *  cat)
inline

Definition at line 123 of file RWLocks.h.

References Catalog_Namespace::write_lock< T >::lock_catalog().

123 : catalog(cat), holds_lock(false) { lock_catalog(cat); }
std::string cat(Ts &&...args)
void lock_catalog(const inner_type *cat)
Definition: RWLocks.h:112

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template<typename T >
Catalog_Namespace::write_lock< T >::~write_lock ( )
inline

Definition at line 125 of file RWLocks.h.

References Catalog_Namespace::write_lock< T >::unlock().

125 { unlock(); }

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Member Function Documentation

template<typename T >
template<typename inner_type >
void Catalog_Namespace::write_lock< T >::lock_catalog ( const inner_type *  cat)
inlineprivate

Definition at line 112 of file RWLocks.h.

References Catalog_Namespace::write_lock< T >::holds_lock, and Catalog_Namespace::write_lock< T >::lock.

Referenced by Catalog_Namespace::write_lock< T >::write_lock().

112  {
113  std::thread::id tid = std::this_thread::get_id();
114 
115  if (cat->thread_holding_write_lock != tid) {
116  lock = mapd_unique_lock<mapd_shared_mutex>(cat->sharedMutex_);
117  cat->thread_holding_write_lock = tid;
118  holds_lock = true;
119  }
120  }
std::string cat(Ts &&...args)
mapd_unique_lock< mapd_shared_mutex > lock
Definition: RWLocks.h:108

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template<typename T >
void Catalog_Namespace::write_lock< T >::unlock ( )
inline

Definition at line 127 of file RWLocks.h.

References Catalog_Namespace::write_lock< T >::catalog, Catalog_Namespace::write_lock< T >::holds_lock, and Catalog_Namespace::write_lock< T >::lock.

Referenced by Catalog_Namespace::Catalog::createDashboard(), Catalog_Namespace::Catalog::replaceDashboard(), and Catalog_Namespace::write_lock< T >::~write_lock().

127  {
128  if (holds_lock) {
129  std::thread::id no_thread;
130  catalog->thread_holding_write_lock = no_thread;
131  lock.unlock();
132  holds_lock = false;
133  }
134  }
mapd_unique_lock< mapd_shared_mutex > lock
Definition: RWLocks.h:108

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Member Data Documentation

template<typename T >
const T* Catalog_Namespace::write_lock< T >::catalog
private

Definition at line 107 of file RWLocks.h.

Referenced by Catalog_Namespace::write_lock< T >::unlock().

template<typename T >
bool Catalog_Namespace::write_lock< T >::holds_lock
private

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