diff options
| author | Tom Rondeau <trondeau@vt.edu> | 2013-04-17 13:43:52 -0400 |
|---|---|---|
| committer | Tom Rondeau <trondeau@vt.edu> | 2013-04-29 14:52:56 -0400 |
| commit | f3e2e07201c50033bf6c9d0c6a6f068557b4f17f (patch) | |
| tree | 140b3c2d20a951ffd4abd564c3378ee2e2f9fc7c /gnuradio-runtime/lib/vmcircbuf_prefs.cc | |
| parent | 35303ae975a5b1bdecc2492bc96e2b8e89b62a3d (diff) | |
runtime: converting runtime core to gr namespace, gnuradio include dir.
Diffstat (limited to 'gnuradio-runtime/lib/vmcircbuf_prefs.cc')
| -rw-r--r-- | gnuradio-runtime/lib/vmcircbuf_prefs.cc | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/gnuradio-runtime/lib/vmcircbuf_prefs.cc b/gnuradio-runtime/lib/vmcircbuf_prefs.cc new file mode 100644 index 0000000000..1fa6350385 --- /dev/null +++ b/gnuradio-runtime/lib/vmcircbuf_prefs.cc @@ -0,0 +1,113 @@ +/* -*- 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 <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); + } + + const char * + vmcircbuf_prefs::get(const char *key) + { + static char buf[1024]; + + FILE *fp = fopen(pathname (key), "r"); + if(fp == 0) { + perror(pathname (key)); + return 0; + } + + memset(buf, 0, sizeof (buf)); + size_t ret = fread(buf, 1, sizeof(buf) - 1, fp); + if(ret == 0) { + if(ferror(fp) != 0) { + perror(pathname (key)); + fclose(fp); + return 0; + } + } + fclose(fp); + return buf; + } + + void + vmcircbuf_prefs::set(const char *key, const char *value) + { + 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 */ |