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/*
* Copyright (C) 2005 Alfredo Pironti
*
* This software is distributed under a BSD-style license. See the
* file "COPYING" in the top-level directory of the disribution for details.
*
*/
#include <cstdlib>
#include "gpsd_config.h"
#include "libgpsmm.h"
gpsmm::gpsmm() :
#if GPSD_API_MAJOR_VERSION < 5
_gps_data(0),
#endif
to_user(0)
{
}
struct gps_data_t* gpsmm::open(void) {
return open("localhost",DEFAULT_GPSD_PORT);
}
struct gps_data_t* gpsmm::open(const char *host, const char *port) {
#if GPSD_API_MAJOR_VERSION < 5
gps_data = gps_open( host, port );
const bool err = (gps_data==NULL); //connection not opened
#else
const bool err = (gps_open(host, port, gps_data()) != 0);
#endif
if ( err ) {
return NULL;
}
else { //connection succesfully opened
to_user= new struct gps_data_t;
return backup(); //we return the backup of our internal structure
}
}
struct gps_data_t* gpsmm::stream(int flags) {
if (gps_stream(gps_data(),flags, NULL)==-1) {
return NULL;
}
else {
return backup();
}
}
struct gps_data_t* gpsmm::send(const char *request) {
if (gps_send(gps_data(),request)==-1) {
return NULL;
}
else {
return backup();
}
}
struct gps_data_t* gpsmm::read(void) {
if (gps_read(gps_data())<=0) {
// we return null if there was a read() error, if no data was ready in
// POLL_NOBLOCK mode, or if the connection is closed by gpsd
return NULL;
}
else {
return backup();
}
}
int gpsmm::close(void) {
return gps_close(gps_data());
}
bool gpsmm::waiting(void) {
return gps_waiting(gps_data());
}
void gpsmm::clear_fix(void) {
gps_clear_fix(&(gps_data()->fix));
}
void gpsmm::enable_debug(int level, FILE *fp) {
#ifdef CLIENTDEBUG_ENABLE
gps_enable_debug(level, fp);
#endif /* CLIENTDEBUG_ENABLE */
}
gpsmm::~gpsmm() {
if ( to_user != NULL ) {
gps_close(gps_data());
delete to_user;
}
}
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