dom/midi/AlsaCompatibility.cpp

   1 /* This Source Code Form is subject to the terms of the Mozilla Public
   2  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
   3  * You can obtain one at http://mozilla.org/MPL/2.0/. */
   4
   5 #include "mozilla/Assertions.h"
   6
   7 // The code in this file is a workaround for building with ALSA versions prior
   8 // to 1.0.29. The snd_pcm_sw_params_set_tstamp_type() and
   9 // snd_pcm_sw_params_get_tstamp_type() functions are missing from those versions
  10 // and we need them for the alsa crate which in turn is a dependency of the
  11 // midir crate. The functions are not actually used so we provide dummy
  12 // implementations that return an error. This file can be safely removed when
  13 // the Linux sysroot will be updated to Debian 9 (or higher)
  14 #include <alsa/asoundlib.h>
  15
  16 #if (SND_LIB_MAJOR == 1) && (SND_LIB_MINOR == 0) && (SND_LIB_SUBMINOR < 29)
  17
  18 extern "C" {
  19
  20 int snd_pcm_sw_params_set_tstamp_type(void) {
  21   MOZ_CRASH(
  22       "The replacement for snd_pcm_sw_params_set_tstamp_type() should never be "
  23       "called");
  24   return -1;
  25 }
  26
  27 int snd_pcm_sw_params_get_tstamp_type(void) {
  28   MOZ_CRASH(
  29       "The replacement for snd_pcm_sw_params_get_tstamp_type() should never be "
  30       "called");
  31   return -1;
  32 }
  33 }
  34
  35 #endif