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Diffstat (limited to 'gzsetparams.3')
| -rw-r--r-- | gzsetparams.3 | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/gzsetparams.3 b/gzsetparams.3 new file mode 100644 index 0000000..88ba96c --- /dev/null +++ b/gzsetparams.3 @@ -0,0 +1,37 @@ +.Dd November 12, 2018 +.Dt GZSETPARAMS 3 +.Os +. +.Sh NAME +.Nm gzsetparams +.Nd set compression level and strategy +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft int +.Fn gzsetparams "gzFile file" "int level" "int strategy" +. +.Sh DESCRIPTION +Dynamically update the compression level or strategy. +See the description of +.Xr deflateInit2 3 +for the meaning +of these parameters. +Previously provided data is flushed +before the parameter change. +. +.Sh RETURN VALUES +.Fn gzsetparams +returns +.Dv Z_OK +if success, +.Dv Z_STREAM_ERROR +if the file was not opened for writing, +.Dv Z_ERRNO +if there is an error writing the flushed data, +or +.Dv Z_MEM_ERROR +if there is a memory allocation error. |