epee::mlocker Class Reference

#include <mlocker.h>

Public Member Functions
	mlocker (void *ptr, size_t len)
	~mlocker ()

Static Public Member Functions
static size_t	get_page_size ()
static size_t	get_num_locked_pages ()
static size_t	get_num_locked_objects ()
static void	lock (void *ptr, size_t len)
static void	unlock (void *ptr, size_t len)

Detailed Description

Definition at line 36 of file mlocker.h.

Constructor & Destructor Documentation

mlocker()

epee::mlocker::mlocker	(	void *	ptr,
		size_t	len )

Definition at line 115 of file mlocker.cpp.

                                       : ptr(ptr), len(len)
  {
    lock(ptr, len);
  }

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~mlocker()

epee::mlocker::~mlocker

(

)

Definition at line 120 of file mlocker.cpp.

  {
    try { unlock(ptr, len); }
    catch (...) { /* ignore and do not propagate through the dtor */ }
  }

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Member Function Documentation

get_num_locked_objects()

size_t epee::mlocker::get_num_locked_objects ( )

static

Definition at line 167 of file mlocker.cpp.

  {
    CRITICAL_REGION_LOCAL(mutex());
    return num_locked_objects;
  }

get_num_locked_pages()

size_t epee::mlocker::get_num_locked_pages ( )

static

Definition at line 161 of file mlocker.cpp.

  {
    CRITICAL_REGION_LOCAL(mutex());
    return map().size();
  }

get_page_size()

size_t epee::mlocker::get_page_size ( )

static

Definition at line 107 of file mlocker.cpp.

  {
    CRITICAL_REGION_LOCAL(mutex());
    if (page_size == 0)
      page_size = query_page_size();
    return page_size;
  }

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lock()

void epee::mlocker::lock ( void * ptr, size_t len )

static

Definition at line 126 of file mlocker.cpp.

  {
    TRY_ENTRY();
 
    size_t page_size = get_page_size();
    if (page_size == 0)
      return;
 
    CRITICAL_REGION_LOCAL(mutex());
    const size_t first = ((uintptr_t)ptr) / page_size;
    const size_t last = (((uintptr_t)ptr) + len - 1) / page_size;
    for (size_t page = first; page <= last; ++page)
      lock_page(page);
    ++num_locked_objects;
 
    CATCH_ENTRY_L1("mlocker::lock", void());
  }

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unlock()

void epee::mlocker::unlock ( void * ptr, size_t len )

static

Definition at line 144 of file mlocker.cpp.

  {
    TRY_ENTRY();
 
    size_t page_size = get_page_size();
    if (page_size == 0)
      return;
    CRITICAL_REGION_LOCAL(mutex());
    const size_t first = ((uintptr_t)ptr) / page_size;
    const size_t last = (((uintptr_t)ptr) + len - 1) / page_size;
    for (size_t page = first; page <= last; ++page)
      unlock_page(page);
    --num_locked_objects;
 
    CATCH_ENTRY_L1("mlocker::lock", void());
  }

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

• /home/abuild/rpmbuild/BUILD/electroneum-5.1.3.1-build/electroneum-5.1.3.1/contrib/epee/include/mlocker.h
• /home/abuild/rpmbuild/BUILD/electroneum-5.1.3.1-build/electroneum-5.1.3.1/contrib/epee/src/mlocker.cpp