/usr/include/tbb/runtime_loader.h is in libtbb-dev 2017~U7-8.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 | /*
Copyright (c) 2005-2017 Intel Corporation
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
#ifndef __TBB_runtime_loader_H
#define __TBB_runtime_loader_H
#if ! TBB_PREVIEW_RUNTIME_LOADER
#error Set TBB_PREVIEW_RUNTIME_LOADER to include runtime_loader.h
#endif
#include "tbb_stddef.h"
#include <climits>
#if _MSC_VER
#if ! __TBB_NO_IMPLICIT_LINKAGE
#ifdef _DEBUG
#pragma comment( linker, "/nodefaultlib:tbb_debug.lib" )
#pragma comment( linker, "/defaultlib:tbbproxy_debug.lib" )
#else
#pragma comment( linker, "/nodefaultlib:tbb.lib" )
#pragma comment( linker, "/defaultlib:tbbproxy.lib" )
#endif
#endif
#endif
namespace tbb {
namespace interface6 {
//! Load TBB at runtime.
/*!
\b Usage:
In source code:
\code
#include "tbb/runtime_loader.h"
char const * path[] = { "<install dir>/lib/ia32", NULL };
tbb::runtime_loader loader( path );
// Now use TBB.
\endcode
Link with \c tbbproxy.lib (or \c libtbbproxy.a) instead of \c tbb.lib (\c libtbb.dylib,
\c libtbb.so).
TBB library will be loaded at runtime from \c <install dir>/lib/ia32 directory.
\b Attention:
All \c runtime_loader objects (in the same module, i.e. exe or dll) share some global state.
The most noticeable piece of global state is loaded TBB library.
There are some implications:
- Only one TBB library can be loaded per module.
- If one object has already loaded TBB library, another object will not load TBB.
If the loaded TBB library is suitable for the second object, both will use TBB
cooperatively, otherwise the second object will report an error.
- \c runtime_loader objects will not work (correctly) in parallel due to absence of
synchronization.
*/
class runtime_loader : tbb::internal::no_copy {
public:
//! Error mode constants.
enum error_mode {
em_status, //!< Save status of operation and continue.
em_throw, //!< Throw an exception of tbb::runtime_loader::error_code type.
em_abort //!< Print message to \c stderr and call \c abort().
}; // error_mode
//! Error codes.
enum error_code {
ec_ok, //!< No errors.
ec_bad_call, //!< Invalid function call (e. g. load() called when TBB is already loaded).
ec_bad_arg, //!< Invalid argument passed.
ec_bad_lib, //!< Invalid library found (e. g. \c TBB_runtime_version symbol not found).
ec_bad_ver, //!< TBB found but version is not suitable.
ec_no_lib //!< No suitable TBB library found.
}; // error_code
//! Initialize object but do not load TBB.
runtime_loader( error_mode mode = em_abort );
//! Initialize object and load TBB.
/*!
See load() for details.
If error mode is \c em_status, call status() to check whether TBB was loaded or not.
*/
runtime_loader(
char const * path[], //!< List of directories to search TBB in.
int min_ver = TBB_INTERFACE_VERSION, //!< Minimal suitable version of TBB.
int max_ver = INT_MAX, //!< Maximal suitable version of TBB.
error_mode mode = em_abort //!< Error mode for this object.
);
//! Destroy object.
~runtime_loader();
//! Load TBB.
/*!
The method searches the directories specified in \c path[] array for the TBB library.
When the library is found, it is loaded and its version is checked. If the version is
not suitable, the library is unloaded, and the search continues.
\b Note:
For security reasons, avoid using relative directory names. For example, never load
TBB from current (\c "."), parent (\c "..") or any other relative directory (like
\c "lib" ). Use only absolute directory names (e. g. "/usr/local/lib").
For the same security reasons, avoid using system default directories (\c "") on
Windows. (See http://www.microsoft.com/technet/security/advisory/2269637.mspx for
details.)
Neglecting these rules may cause your program to execute 3-rd party malicious code.
\b Errors:
- \c ec_bad_call - TBB already loaded by this object.
- \c ec_bad_arg - \p min_ver and/or \p max_ver negative or zero,
or \p min_ver > \p max_ver.
- \c ec_bad_ver - TBB of unsuitable version already loaded by another object.
- \c ec_no_lib - No suitable library found.
*/
error_code
load(
char const * path[], //!< List of directories to search TBB in.
int min_ver = TBB_INTERFACE_VERSION, //!< Minimal suitable version of TBB.
int max_ver = INT_MAX //!< Maximal suitable version of TBB.
);
//! Report status.
/*!
If error mode is \c em_status, the function returns status of the last operation.
*/
error_code status();
private:
error_mode const my_mode;
error_code my_status;
bool my_loaded;
}; // class runtime_loader
} // namespace interface6
using interface6::runtime_loader;
} // namespace tbb
#endif /* __TBB_runtime_loader_H */
|