roc::core::MemoryOps Class Reference

Memory operations. More...

#include <roc_core/memory_ops.h>

Public Types
enum	{ Pattern_BeforeUse = 0x7a , Pattern_AfterUse = 0x7d , Pattern_Canary = 0x7b }
	Some good filler patterns for memory. If we fill memory with these values and interpret it as 16-bit or 32-bit integers, or as floats, the values will be rather high and will sound loudly when trying to play them on sound card. We use a few different patterns to make it easy to distinguish between them in debugger. More...

Static Public Member Functions
static void	poison_before_use (void *data, size_t size)
	Poison memory that is going to be used. Helps catching uninitialized access bugs.
static void	poison_after_use (void *data, size_t size)
	Poison memory that is no more used. Helps catching use after free bugs.
static void	prepare_canary (void *data, size_t size)
	Prepare canary memory. Helps catching buffer overflow/underflow bugs.
static bool	check_canary (void *data, size_t size)
	Check canary memory.

Detailed Description

Memory operations.

Definition at line 21 of file memory_ops.h.

Member Enumeration Documentation

anonymous enum

anonymous enum

Some good filler patterns for memory. If we fill memory with these values and interpret it as 16-bit or 32-bit integers, or as floats, the values will be rather high and will sound loudly when trying to play them on sound card. We use a few different patterns to make it easy to distinguish between them in debugger.

Definition at line 45 of file memory_ops.h.

Member Function Documentation

check_canary()

static bool roc::core::MemoryOps::check_canary ( void *  data, size_t  size  )

static

Check canary memory.

Returns

true if passed.

poison_after_use()

static void roc::core::MemoryOps::poison_after_use ( void *  data, size_t  size  )

static

Poison memory that is no more used. Helps catching use after free bugs.

poison_before_use()

static void roc::core::MemoryOps::poison_before_use ( void *  data, size_t  size  )

static

Poison memory that is going to be used. Helps catching uninitialized access bugs.

prepare_canary()

static void roc::core::MemoryOps::prepare_canary ( void *  data, size_t  size  )

static

Prepare canary memory. Helps catching buffer overflow/underflow bugs.

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

• roc_core/memory_ops.h