virtualMemory.h File Reference

#include "pxr/pxr.h"
#include "pxr/base/arch/api.h"
#include <cstddef>

Include dependency graph for virtualMemory.h:

Go to the source code of this file.

Functions
PXR_NAMESPACE_OPEN_SCOPE ARCH_API void *	ArchReserveVirtualMemory (size_t numBytes)
ARCH_API bool	ArchCommitVirtualMemoryRange (void *start, size_t numBytes)
ARCH_API bool	ArchFreeVirtualMemory (void *start, size_t numBytes)

Detailed Description

Architecture dependent routines for virtual memory.

Definition in file virtualMemory.h.

Function Documentation

ARCH_API bool ArchCommitVirtualMemoryRange	(	void *	start,
		size_t	numBytes
	)

Make the range of numBytes bytes starting at start available for reading and writing. The range must be within one previously reserved by ArchReserveVirtualMemory(). It is not an error to commit a range that was previously partly or fully committed. Return false in case of an error; check errno.

ARCH_API bool ArchFreeVirtualMemory	(	void *	start,
		size_t	numBytes
	)

Return memory obtained with ArchReserveVirtualMemory() to the system. The start argument must be the value returned from a previous call to ArchReserveVirtualMemory, and numBytes must match the argument from that call. Memory within the range may not be accessed after this call. Return false in case of an error; check errno.

PXR_NAMESPACE_OPEN_SCOPE ARCH_API void* ArchReserveVirtualMemory

(

size_t

numBytes

)

Reserve numBytes bytes of virtual memory. Call ArchCommitVirtualMemory() on subranges to write to and read from the memory. Return nullptr in case of an error; check errno.