From 903922a7bcf06e04d9830b47bba6d65ed37304c1 Mon Sep 17 00:00:00 2001
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From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Date: Sun, 7 Feb 2016 18:05:56 +0100
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Subject: [PATCH] output_alsa: use mallopt() only on glibc
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The musl C library does not provide the glibc specific mallopt()
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functionality, so use it only when __GLIBC__ is defined.
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uClibc pretends to be glibc by defining __GLIBC__, but it implements
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mallopt(), so it works fine.
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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---
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output_alsa.c | 2 ++
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1 file changed, 2 insertions(+)
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diff --git a/output_alsa.c b/output_alsa.c
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index aa01560..44c9fc7 100644
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--- a/output_alsa.c
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+++ b/output_alsa.c
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@@ -862,8 +862,10 @@ void output_init_alsa(log_level level, const char *device, unsigned output_buf_s
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LOG_INFO("memory locked");
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}
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+#ifdef __GLIBC__
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mallopt(M_TRIM_THRESHOLD, -1);
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mallopt(M_MMAP_MAX, 0);
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+#endif
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touch_memory(silencebuf, MAX_SILENCE_FRAMES * BYTES_PER_FRAME);
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touch_memory(outputbuf->buf, outputbuf->size);
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--
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2.6.4
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