From 9695ea005d4af93dcd60f74f10fd3c54499a182f Mon Sep 17 00:00:00 2001 From: Nicholas Noll Date: Thu, 11 Nov 2021 16:31:58 -0800 Subject: chore: split up base library into individual files for smaller binaries --- sys/base/flate/reader.c | 59 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 sys/base/flate/reader.c (limited to 'sys/base/flate/reader.c') diff --git a/sys/base/flate/reader.c b/sys/base/flate/reader.c new file mode 100644 index 0000000..84f0d80 --- /dev/null +++ b/sys/base/flate/reader.c @@ -0,0 +1,59 @@ +#include "internal.h" + +flate·Reader* +flate·openreader(io·Reader rdr, void* r, mem·Allocator mem, void* m) +{ + error err; + flate·Reader *zrdr; + + zrdr = mem.alloc(m, 1, sizeof(*zrdr)); + + zrdr->zalloc = (void *(*)(void *, unsigned int, unsigned int))mem.alloc; + zrdr->zfree = mem.free; + zrdr->opaque = m; + zrdr->avail_in = rdr.read(r, 1, arrlen(zrdr->buf), zrdr->buf); + zrdr->next_in = zrdr->buf; + + err = inflateInit(&zrdr->b.z); + + switch (err) { + case Z_OK: + return zrdr; + + case Z_MEM_ERROR: + errorf("zlib: not enough memory"); + goto ERROR; + + case Z_VERSION_ERROR: + errorf("zlib: incompatible version"); + goto ERROR; + + case Z_STREAM_ERROR: + errorf("zlib: incorrect input parameters"); + goto ERROR; + + default: + errorf("zlib: unrecognized error code"); + } +ERROR: + errorf("zlib: msg: %s", zrdr->msg); + mem.free(m, zrdr); + return nil; +} + +error +flate·closereader(flate·Reader *rdr) +{ + int err; + flate·Reader zrdr; + + zrdr = *rdr; + err = inflateEnd(&zrdr.b.z); + if (err != Z_OK) { + errorf("zlib: failed to cleanup"); + return err; + } + rdr->zfree(rdr->opaque, rdr); + + return 0; +} -- cgit v1.2.1