/* -*- c++ -*- */ /* * Copyright 2003,2010,2011,2013 Free Software Foundation, Inc. * * This file is part of GNU Radio * * SPDX-License-Identifier: GPL-3.0-or-later * */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include "vmcircbuf.h" #include "vmcircbuf_prefs.h" #include <gnuradio/sys_paths.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <sys/stat.h> #include <sys/types.h> #include <unistd.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 std::string pathname(const char* key) { static fs::path path; path = fs::path(gr::appdata_path()) / ".gnuradio" / "prefs" / key; return path.string(); } 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).c_str(), "r"); gr::logger_ptr logger, debug_logger; gr::configure_default_loggers(logger, debug_logger, "vmcircbuf_prefs::get"); if (fp == 0) { GR_LOG_ERROR(logger, boost::format("%s: %s") % pathname(key).c_str() % strerror(errno)); 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) { GR_LOG_ERROR(logger, boost::format("%s: %s") % pathname(key).c_str() % strerror(errno)); 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(); gr::logger_ptr logger, debug_logger; gr::configure_default_loggers(logger, debug_logger, "vmcircbuf_prefs::set"); FILE* fp = fopen(pathname(key).c_str(), "w"); if (fp == 0) { GR_LOG_ERROR(logger, boost::format("%s: %s") % pathname(key).c_str() % strerror(errno)); return; } size_t ret = fwrite(value, 1, strlen(value), fp); if (ret == 0) { if (ferror(fp) != 0) { GR_LOG_ERROR(logger, boost::format("%s: %s") % pathname(key).c_str() % strerror(errno)); fclose(fp); return; } } fclose(fp); }; } /* namespace gr */