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ost::SharedMemPager(3) Library Functions Manual ost::SharedMemPager(3)

NAME

ost::SharedMemPager - The shared mempager uses a mutex to protect key access methods.

SYNOPSIS

#include <misc.h>

Inherits ost::MemPager, and ost::Mutex.

Protected Member Functions


SharedMemPager (size_t pagesize=4096, const char *name=NULL)
Create a mempager mutex pool. void purge (void)
Purge the memory pool while locked. void * first (size_t size)
Get the first memory page after locking. void * alloc (size_t size)
Get the last memory page after locking.

Additional Inherited Members

Detailed Description

The shared mempager uses a mutex to protect key access methods.

This class is used when a mempager will be shared by multiple threads.

Author

David Sugar dyfet@ostel.com

mutex protected memory pager.

Constructor & Destructor Documentation

ost::SharedMemPager::SharedMemPager (size_t pagesize = 4096, const char * name = NULL) [protected]

Create a mempager mutex pool.

Parameters

pagesize page size for allocation.
name a name for the pool.

Member Function Documentation

void* ost::SharedMemPager::alloc (size_t size) [protected], [virtual]

Get the last memory page after locking.

Returns

allocated memory space.

Parameters

size of request.

Reimplemented from ost::MemPager.

void* ost::SharedMemPager::first (size_t size) [protected], [virtual]

Get the first memory page after locking.

Returns

allocated memory space.

Parameters

size of request.

Reimplemented from ost::MemPager.

void ost::SharedMemPager::purge (void) [protected]

Purge the memory pool while locked.

Author

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Sun Dec 27 2020 GNU CommonC++