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/* -*- c++ -*- */
/*
* Copyright 2003,2010,2011,2013 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* GNU Radio is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3, or (at your option)
* any later version.
*
* GNU Radio is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Radio; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "vmcircbuf_prefs.h"
#include "vmcircbuf.h"
#include <gnuradio/sys_paths.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <string.h>
#include <boost/filesystem/operations.hpp>
#include <boost/filesystem/path.hpp>
namespace fs = boost::filesystem;
namespace gr {
/*
* The simplest thing that could possibly work:
* the key is the filename; the value is the file contents.
*/
static const char *
pathname(const char *key)
{
static fs::path path;
path = fs::path(gr::appdata_path()) / ".gnuradio" / "prefs" / key;
return path.string().c_str();
}
static void
ensure_dir_path()
{
fs::path path = fs::path(gr::appdata_path()) / ".gnuradio";
if(!fs::is_directory(path))
fs::create_directory(path);
path = path / "prefs";
if(!fs::is_directory(path))
fs::create_directory(path);
}
int
vmcircbuf_prefs::get(const char *key, char *value, int value_size)
{
gr::thread::scoped_lock guard(s_vm_mutex);
FILE *fp = fopen(pathname (key), "r");
if(fp == 0) {
perror(pathname (key));
return 0;
}
const size_t ret = fread(value, 1, value_size - 1, fp);
value[ret] = '\0';
if(ret == 0 && !feof(fp)) {
if(ferror(fp) != 0) {
perror(pathname (key));
fclose(fp);
return -1;
}
}
fclose(fp);
return ret;
}
void
vmcircbuf_prefs::set(const char *key, const char *value)
{
gr::thread::scoped_lock guard(s_vm_mutex);
ensure_dir_path();
FILE *fp = fopen(pathname(key), "w");
if(fp == 0) {
perror(pathname (key));
return;
}
size_t ret = fwrite(value, 1, strlen(value), fp);
if(ret == 0) {
if(ferror(fp) != 0) {
perror(pathname (key));
fclose(fp);
return;
}
}
fclose(fp);
};
} /* namespace gr */
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