From b6ce0c6410e2f3ba2ee0877cb3d5c4713617d84f Mon Sep 17 00:00:00 2001
From: Curtis McEnroe <june@causal.agency>
Date: Mon, 12 Nov 2018 16:48:42 -0500
Subject: Add gzbuffer.3

---
 Makefile   |  1 +
 gzbuffer.3 | 45 +++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 46 insertions(+)
 create mode 100644 gzbuffer.3

diff --git a/Makefile b/Makefile
index 9a75d20..02dee6a 100644
--- a/Makefile
+++ b/Makefile
@@ -18,6 +18,7 @@ MAN += deflateReset.3
 MAN += deflateSetDictionary.3
 MAN += deflateSetHeader.3
 MAN += deflateTune.3
+MAN += gzbuffer.3
 MAN += gzopen.3
 MAN += inflate.3
 MAN += inflateBack.3
diff --git a/gzbuffer.3 b/gzbuffer.3
new file mode 100644
index 0000000..a97e317
--- /dev/null
+++ b/gzbuffer.3
@@ -0,0 +1,45 @@
+.Dd November 12, 2018
+.Dt GZBUFFER 3
+.Os
+.
+.Sh NAME
+.Nm gzbuffer
+.Nd set buffer size
+.
+.Sh LIBRARY
+.Lb libz
+.
+.Sh SYNOPSIS
+.In zlib.h
+.Ft int
+.Fn gzbuffer "gzFile file" "unsigned size"
+.
+.Sh DESCRIPTION
+Set the internal buffer size
+used by this library's functions.
+The default buffer size is 8192 bytes.
+This function must be called after
+.Xr gzopen 3
+or
+.Xr gzdopen 3 ,
+and before any other calls
+that read or write the file.
+The buffer memory allocation
+is always deferred to the first read or write.
+Three times that size in buffer space is allocated.
+A larger buffer size of,
+for example,
+64K or 128K bytes
+will noticeably increase the speed
+of decompression (reading).
+.
+.Pp
+The new buffer size also affects
+the maximum length for
+.Xr gzprintf 3 .
+.
+.Sh RETURN VALUES
+.Fn gzbuffer
+returns 0 on success,
+or -1 on failure,
+such as being called too late.
-- 
cgit 1.4.1