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Force device to stop immediately with an SNDCTL_DSP_RESET. Otherwise, a

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regular close() sends SNDCTL_DSP_SYNC which can hang (and does on PPC)
This commit is contained in:
gbeauche 2004-01-04 05:47:08 +00:00
parent e346de3199
commit 3fd927f404
1 changed files with 7 additions and 0 deletions
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7
BasiliskII/src/Unix/audio_oss_esd.cpp
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@ -55,6 +55,7 @@ static int audio_sample_size_index = 0;
static int audio_channel_count_index = 0;
// Global variables
static bool is_dsp_audio = false; // Flag: is DSP audio
static int audio_fd = -1; // fd of dsp or ESD
static int mixer_fd = -1; // fd of mixer
static sem_t audio_irq_done_sem; // Signal from interrupt to streaming thread: data block read
@ -95,6 +96,7 @@ static bool open_dsp(void)
}
printf("Using %s audio output\n", dsp);
is_dsp_audio = true;
// Get supported sample formats
if (audio_sample_sizes.empty()) {
@ -321,6 +323,11 @@ static void close_audio(void)
// Close dsp or ESD socket
if (audio_fd >= 0) {
if (is_dsp_audio) {
// Stop the device immediately. Otherwise, close() sends
// SNDCTL_DSP_SYNC, which may hang
ioctl(audio_fd, SNDCTL_DSP_RESET, 0);
}
close(audio_fd);
audio_fd = -1;
}