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binpac: Adding an interface to manually control the buffering for generated

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parsers.

This consists of two parts:

    1. The generated Flow classes expose their flow buffers via a new
       method flow_buffer().

    2. Flow buffers get two new methods:

        // Interface for delayed parsing. Sometimes BinPAC doesn't get the
        // buffering right and then one can use these to feed parts
        // individually and assemble them internally. After calling
        // FinishBuffer(), one can send the uppper-layer flow an FlowEOF()
        // to trigger parsing.
        void BufferData(const_byteptr data, const_byteptr end);
        void FinishBuffer();
This commit is contained in:
Robin Sommer 2013-07-24 18:32:09 -07:00 • committed by Tim Wojtulewicz
parent ce2b56751b
commit 61cc83affa
3 changed files with 23 additions and 2 deletions
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10
tools/binpac/lib/binpac_buffer.h
View file

@ -8,7 +8,7 @@ namespace binpac {
class FlowBuffer {
public:
enum LineBreakStyle {
enum LineBreakStyle {
CR_OR_LF, // CR or LF or CRLF
STRICT_CRLF, // CR followed by LF
CR_LF_NUL, // CR or LF or CR-LF or CR-NUL
@ -20,6 +20,14 @@ public:
void NewData(const_byteptr begin, const_byteptr end);
void NewGap(int length);
// Interface for delayed parsing. Sometimes BinPAC doesn't get the
// buffering right and then one can use these to feed parts
// individually and assemble them internally. After calling
// FinishBuffer(), one can send the uppper-layer flow an FlowEOF() to
// trigger parsing.
void BufferData(const_byteptr data, const_byteptr end);
void FinishBuffer();
// Discard unprocessed data
void DiscardData();