blob: babff1ca5428c82719ef58026b42f2d32b04b2fa (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
|
//
// Copyright 2010 Ettus Research LLC
//
// This program 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 of the License, or
// (at your option) any later version.
//
// This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
//
#include <uhd/utils/static.hpp>
#include <boost/format.hpp>
#include <boost/foreach.hpp>
#include <boost/algorithm/string.hpp>
#include <boost/filesystem.hpp>
#include <iostream>
#include <stdexcept>
#include <cstdlib>
namespace fs = boost::filesystem;
/***********************************************************************
* Module Load Function
**********************************************************************/
#ifdef HAVE_DLFCN_H
#include <dlfcn.h>
static void load_module(const std::string &file_name){
if (dlopen(file_name.c_str(), RTLD_LAZY) == NULL){
throw std::runtime_error(str(
boost::format("dlopen failed to load \"%s\"") % file_name
));
}
}
#elif HAVE_WINDOWS_H
#include <windows.h>
static void load_module(const std::string &file_name){
if (LoadLibrary(file_name.c_str()) == NULL){
throw std::runtime_error(str(
boost::format("LoadLibrary failed to load \"%s\"") % file_name
));
}
}
#else
static void load_module(const std::string &file_name){
throw std::runtime_error(str(
boost::format("Module loading not supported: Cannot load \"%s\"") % file_name
));
}
#endif
/***********************************************************************
* Load Modules
**********************************************************************/
/*!
* Load all modules in a given path.
* This will recurse into sub-directories.
* Does not throw, prints to std error.
* \param path the filesystem path
*/
static void load_path(const fs::path &path){
if (not fs::exists(path)){
std::cerr << boost::format("Module path \"%s\" not found.") % path.file_string() << std::endl;
return;
}
//try to load the files in this path
if (fs::is_directory(path)){
for(
fs::directory_iterator dir_itr(path);
dir_itr != fs::directory_iterator();
++dir_itr
){
load_path(dir_itr->path());
}
return;
}
//its not a directory, try to load it
try{
load_module(path.file_string());
}
catch(const std::exception &err){
std::cerr << boost::format("Error: %s") % err.what() << std::endl;
}
}
/*!
* Load all the modules given by the module path enviroment variable.
* The path variable may be several paths split by path separators.
*/
UHD_STATIC_BLOCK(load_modules){
//get the environment variable module path
char *env_module_path = std::getenv("UHD_MODULE_PATH");
if (env_module_path == NULL) return;
//split the path at the path separators
std::vector<std::string> module_paths;
boost::split(module_paths, env_module_path, boost::is_any_of(":;"));
//load modules in each path
BOOST_FOREACH(const std::string &module_path, module_paths){
load_path(fs::system_complete(fs::path(module_path)));
}
}
|
