libuuu/error.cpp

   1 /*
   2 * Copyright 2018 NXP.
   3 *
   4 * Redistribution and use in source and binary forms, with or without modification,
   5 * are permitted provided that the following conditions are met:
   6 *
   7 * Redistributions of source code must retain the above copyright notice, this
   8 * list of conditions and the following disclaimer.
   9 *
  10 * Redistributions in binary form must reproduce the above copyright notice, this
  11 * list of conditions and the following disclaimer in the documentation and/or
  12 * other materials provided with the distribution.
  13 *
  14 * Neither the name of the NXP Semiconductor nor the names of its
  15 * contributors may be used to endorse or promote products derived from this
  16 * software without specific prior written permission.
  17 *
  18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
  22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  28 * POSSIBILITY OF SUCH DAMAGE.
  29 *
  30 */
  31
  32 #include "liberror.h"
  33 #include "libuuu.h"
  34 #include "libusb.h"
  35
  36 #include <mutex>
  37 #include <atomic>
  38
  39 using namespace std;
  40
  41 static mutex g_last_error_str_mutex;
  42 static string g_last_error_str;
  43 static atomic<int> g_last_err_id;
  44
  45 static uint32_t g_debug_level;
  46
  47 int get_libusb_debug_level() noexcept
  48 {
  49         return g_debug_level & 0xFFFF;
  50 }
  51
  52 void uuu_set_debug_level(uint32_t mask)
  53 {
  54         g_debug_level = mask;
  55
  56 #if LIBUSB_API_VERSION > 0x01000106 && !defined(FORCE_OLDLIBUSB)
  57                 libusb_set_option(nullptr, LIBUSB_OPTION_LOG_LEVEL, get_libusb_debug_level());
  58 #else
  59                 libusb_set_debug(nullptr, get_libusb_debug_level());
  60 #endif
  61 }
  62
  63 const char * uuu_get_last_err_string()
  64 {
  65         lock_guard<mutex> l(g_last_error_str_mutex);
  66         return g_last_error_str.c_str();
  67 }
  68
  69 void set_last_err_string(const string &str)
  70 {
  71         lock_guard<mutex> l(g_last_error_str_mutex);
  72         g_last_error_str = str;
  73 }
  74
  75 int uuu_get_last_err()
  76 {
  77         return g_last_err_id.load();
  78 }
  79
  80 void set_last_err_id(int id)
  81 {
  82         g_last_err_id = id;
  83 }