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.TH ACE_Sbrk_Memory_Pool 3 "1 Dec 2001" "ACE" \" -*- nroff -*-
.ad l
.nh
.SH NAME
ACE_Sbrk_Memory_Pool \- Make a memory pool that is based on <sbrk(2)>.
.SH SYNOPSIS
.br
.PP
\fC#include <Memory_Pool.h>\fR
.PP
.SS Public Types
.in +1c
.ti -1c
.RI "typedef \fBACE_Sbrk_Memory_Pool_Options\fR \fBOPTIONS\fR"
.br
.in -1c
.SS Public Methods
.in +1c
.ti -1c
.RI "\fBACE_Sbrk_Memory_Pool\fR (const \fBACE_TCHAR\fR *backing_store_name = 0, const \fBOPTIONS\fR *options = 0)"
.br
.RI "\fIInitialize the pool.\fR"
.ti -1c
.RI "virtual \fB~ACE_Sbrk_Memory_Pool\fR (void)"
.br
.ti -1c
.RI "virtual void* \fBinit_acquire\fR (size_t nbytes, size_t &rounded_bytes, int &first_time)"
.br
.RI "\fIAsk system for initial chunk of local memory.\fR"
.ti -1c
.RI "virtual void* \fBacquire\fR (size_t nbytes, size_t &rounded_bytes)"
.br
.RI "\fIAcquire at least NBYTES from the memory pool. ROUNDED_BYTES is the actual number of bytes allocated.\fR"
.ti -1c
.RI "virtual int \fBrelease\fR (void)"
.br
.RI "\fIInstruct the memory pool to release all of its resources.\fR"
.ti -1c
.RI "virtual int \fBsync\fR (\fBssize_t\fR len = -1, int flags = MS_SYNC)"
.br
.ti -1c
.RI "virtual int \fBsync\fR (void *addr, size_t len, int flags = MS_SYNC)"
.br
.RI "\fISync <len> bytes of the memory region to the backing store starting at .\fR"
.ti -1c
.RI "virtual int \fBprotect\fR (\fBssize_t\fR len = -1, int prot = PROT_RDWR)"
.br
.ti -1c
.RI "virtual int \fBprotect\fR (void *addr, size_t len, int prot = PROT_RDWR)"
.br
.RI "\fIChange the protection of the pages of the mapped region to <prot> starting at up to <len> bytes.\fR"
.ti -1c
.RI "virtual void \fBdump\fR (void) const"
.br
.RI "\fIDump the state of an object.\fR"
.in -1c
.SS Public Attributes
.in +1c
.ti -1c
.RI "\fBACE_ALLOC_HOOK_DECLARE\fR"
.br
.RI "\fIDeclare the dynamic allocation hooks.\fR"
.in -1c
.SS Protected Methods
.in +1c
.ti -1c
.RI "virtual size_t \fBround_up\fR (size_t nbytes)"
.br
.RI "\fIImplement the algorithm for rounding up the request to an appropriate chunksize.\fR"
.in -1c
.SH DETAILED DESCRIPTION
.PP
Make a memory pool that is based on <sbrk(2)>.
.PP
.SH MEMBER TYPEDEF DOCUMENTATION
.PP
.SS typedef \fBACE_Sbrk_Memory_Pool_Options\fR ACE_Sbrk_Memory_Pool::OPTIONS
.PP
.SH CONSTRUCTOR & DESTRUCTOR DOCUMENTATION
.PP
.SS ACE_Sbrk_Memory_Pool::ACE_Sbrk_Memory_Pool (const \fBACE_TCHAR\fR * backing_store_name = 0, const \fBOPTIONS\fR * options = 0)
.PP
Initialize the pool.
.PP
.SS virtual ACE_Sbrk_Memory_Pool::~ACE_Sbrk_Memory_Pool (void)\fC [virtual]\fR
.PP
.SH MEMBER FUNCTION DOCUMENTATION
.PP
.SS void * ACE_Sbrk_Memory_Pool::acquire (size_t nbytes, size_t & rounded_bytes)\fC [virtual]\fR
.PP
Acquire at least NBYTES from the memory pool. ROUNDED_BYTES is the actual number of bytes allocated.
.PP
.SS void ACE_Sbrk_Memory_Pool::dump (void) const\fC [virtual]\fR
.PP
Dump the state of an object.
.PP
.SS void * ACE_Sbrk_Memory_Pool::init_acquire (size_t nbytes, size_t & rounded_bytes, int & first_time)\fC [virtual]\fR
.PP
Ask system for initial chunk of local memory.
.PP
.SS int ACE_Sbrk_Memory_Pool::protect (void * addr, size_t len, int prot = PROT_RDWR)\fC [virtual]\fR
.PP
Change the protection of the pages of the mapped region to <prot> starting at up to <len> bytes.
.PP
.SS int ACE_Sbrk_Memory_Pool::protect (\fBssize_t\fR len = -1, int prot = PROT_RDWR)\fC [virtual]\fR
.PP
Change the protection of the pages of the mapped region to <prot> starting at <this->base_addr_> up to <len> bytes. If <len> == -1 then change protection of all pages in the mapped region.
.SS int ACE_Sbrk_Memory_Pool::release (void)\fC [virtual]\fR
.PP
Instruct the memory pool to release all of its resources.
.PP
.SS size_t ACE_Sbrk_Memory_Pool::round_up (size_t nbytes)\fC [protected, virtual]\fR
.PP
Implement the algorithm for rounding up the request to an appropriate chunksize.
.PP
.SS int ACE_Sbrk_Memory_Pool::sync (void * addr, size_t len, int flags = MS_SYNC)\fC [virtual]\fR
.PP
Sync <len> bytes of the memory region to the backing store starting at .
.PP
.SS int ACE_Sbrk_Memory_Pool::sync (\fBssize_t\fR len = -1, int flags = MS_SYNC)\fC [virtual]\fR
.PP
Sync <len> bytes of the memory region to the backing store starting at <this->base_addr_>. If <len> == -1 then sync the whole region.
.SH MEMBER DATA DOCUMENTATION
.PP
.SS ACE_Sbrk_Memory_Pool::ACE_ALLOC_HOOK_DECLARE
.PP
Declare the dynamic allocation hooks.
.PP
.SH AUTHOR
.PP
Generated automatically by Doxygen for ACE from the source code.
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