openmrn/DeviceBuffer_8cxx_source.html

#include "DeviceBuffer.hxx"


#include "openmrn_features.h"


#ifdef OPENMRN_FEATURE_DEVTAB


#include <sys/select.h>


void DeviceBufferBase::block_until_condition(File *file, bool read)

{

    fd_set fds;

    FD_ZERO(&fds);

    int fd = Device::fd_lookup(file);

    FD_SET(fd, &fds);


    ::select(fd + 1, read ? &fds : NULL, read ? NULL : &fds, NULL, NULL);

}


#endif // OPENMRN_FEATURE_DEVTAB

DeviceBuffer.hxx

select
int select(int nfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, struct timeval *timeout)
POSIX select().
Definition Fileio.cxx:473

FileIO::fd_lookup
static int fd_lookup(File *file)
Looks up a file descriptor corresponding to a given File reference.
Definition Fileio.cxx:101

openmrn_features.h

File
File information.
Definition Devtab.hxx:52