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.
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::purge (void) [protected]
- Purge the memory pool while locked.
- 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::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.
Author
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code.