NS-3
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automatically resized byte buffer More...
#include <buffer.h>
Classes | |
struct | Data |
class | Iterator |
iterator in a Buffer instance More... | |
Public Member Functions | |
uint32_t | GetSize (void) const |
uint8_t const * | PeekData (void) const |
bool | AddAtStart (uint32_t start) |
bool | AddAtEnd (uint32_t end) |
void | AddAtEnd (const Buffer &o) |
void | RemoveAtStart (uint32_t start) |
void | RemoveAtEnd (uint32_t end) |
Buffer | CreateFragment (uint32_t start, uint32_t length) const |
Buffer::Iterator | Begin (void) const |
Buffer::Iterator | End (void) const |
Buffer | CreateFullCopy (void) const |
uint32_t | GetSerializedSize (void) const |
uint32_t | Serialize (uint8_t *buffer, uint32_t maxSize) const |
uint32_t | Deserialize (const uint8_t *buffer, uint32_t size) |
int32_t | GetCurrentStartOffset (void) const |
int32_t | GetCurrentEndOffset (void) const |
void | CopyData (std::ostream *os, uint32_t size) const |
uint32_t | CopyData (uint8_t *buffer, uint32_t size) const |
Buffer (Buffer const &o) | |
Buffer & | operator= (Buffer const &o) |
Buffer (uint32_t dataSize) | |
Buffer (uint32_t dataSize, bool initialize) |
automatically resized byte buffer
This represents a buffer of bytes. Its size is automatically adjusted to hold any data prepended or appended by the user. Its implementation is optimized to ensure that the number of buffer resizes is minimized, by creating new Buffers of the maximum size ever used. The correct maximum size is learned at runtime during use by recording the maximum size of each packet.
bool ns3::Buffer::AddAtEnd | ( | uint32_t | end | ) |
void ns3::Buffer::AddAtEnd | ( | const Buffer & | o | ) |
bool ns3::Buffer::AddAtStart | ( | uint32_t | start | ) |
Buffer::Iterator ns3::Buffer::Begin | ( | void | ) | const [inline] |
void ns3::Buffer::CopyData | ( | std::ostream * | os, |
uint32_t | size | ||
) | const |
Copy the specified amount of data from the buffer to the given output stream.
os | the output stream |
size | the maximum amount of bytes to copy. If zero, nothing is copied. |
Buffer ns3::Buffer::CreateFragment | ( | uint32_t | start, |
uint32_t | length | ||
) | const |
start | offset from start of packet |
length |
uint32_t ns3::Buffer::Deserialize | ( | const uint8_t * | buffer, |
uint32_t | size | ||
) |
buffer | points to buffer for deserialization |
size | number of bytes to deserialize |
The raw character buffer is deserialized and all the data is placed into this buffer.
Buffer::Iterator ns3::Buffer::End | ( | void | ) | const [inline] |
uint32_t ns3::Buffer::GetSerializedSize | ( | void | ) | const |
uint32_t ns3::Buffer::GetSize | ( | void | ) | const [inline] |
uint8_t const* ns3::Buffer::PeekData | ( | void | ) | const |
The returned pointer points to an area of memory which is ns3::Buffer::GetSize () bytes big. Please, try to never ever use this method. It is really evil and is present only for a few specific uses.
void ns3::Buffer::RemoveAtEnd | ( | uint32_t | end | ) |
void ns3::Buffer::RemoveAtStart | ( | uint32_t | start | ) |
uint32_t ns3::Buffer::Serialize | ( | uint8_t * | buffer, |
uint32_t | maxSize | ||
) | const |
buffer | points to serialization buffer |
maxSize | max number of bytes to write |
This buffer's contents are serialized into the raw character buffer parameter. Note: The zero length data is not copied entirely. Only the length of zero byte data is serialized.