Abstract class used as an intermediate pipe stage between executed processes. More...
#include <stx-execpipe.h>
Public Member Functions | |
| PipeFunction () | |
| Constructor which clears m_impl and m_stageid. | |
| void | write (const void *data, unsigned int datalen) |
| Write input data to the next pipe stage via a buffer. | |
Private Attributes | |
| class ExecPipeImpl * | m_impl |
| pointer to associated pipe filled by ExecPipe::add_function() | |
| unsigned int | m_stageid |
| pipe stage identifier | |
Friends | |
| class | ExecPipeImpl |
| association to the pipe implementation for write access to m_impl. | |
Abstract class used as an intermediate pipe stage between executed processes.
Derived classes can be inserted into an execution pipe between two externally executed processes. It will receive all data from the preceding pipe stage and after processing it may forward output to the next pipe stage.
The class is derived from PipeSink and receives data from the preceding stage via the inherited functions process() and also the eof() signal. Usually process() will perform some action on the data and then forward the resulting data block to the next pipe stage via write().
Definition at line 100 of file stx-execpipe.h.
| stx::PipeFunction::PipeFunction | ( | ) |
Constructor which clears m_impl and m_stageid.
Definition at line 1681 of file stx-execpipe.cc.
| void stx::PipeFunction::write | ( | const void * | data, | |
| unsigned int | datalen | |||
| ) |
Write input data to the next pipe stage via a buffer.
Definition at line 1686 of file stx-execpipe.cc.
friend class ExecPipeImpl [friend] |
association to the pipe implementation for write access to m_impl.
Definition at line 110 of file stx-execpipe.h.
class ExecPipeImpl* stx::PipeFunction::m_impl [private] |
pointer to associated pipe filled by ExecPipe::add_function()
Definition at line 104 of file stx-execpipe.h.
unsigned int stx::PipeFunction::m_stageid [private] |
pipe stage identifier
Definition at line 107 of file stx-execpipe.h.
1.6.3
