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Type for defining a file-descriptor function
typedef int PtFdProcF_t( int fd,
void *data,
unsigned mode );
typedef PtFdProcF_t *PtFdProc_t;
These data types define pointers to file-descriptor functions.
The PtFdProcF_t type is the function type that the
PtFdProc_t type points to. This allows you to do
something like this:
PtFdProcF_t my_fd_proc;
int my_fd_proc( int fd, void *data unsigned mode) {
...
}
The compiler should detect any inconsistencies between the
two declarations of my_fd_proc() and give you an error (which is
better than a “pointer mismatch” warning on the call to
PtAppAddFd()).
Photon
PtAppAddFd()
“Other I/O mechanisms”
in the Interprocess Communication chapter of the
Photon Programmer's Guide
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