ced875130d
Uses of mallocarray(9). The use of mallocarray(9) has rocketed the required swap to build FreeBSD. This is likely caused by the allocation size attributes which put extra pressure on the compiler. Given that most of these checks are superfluous we have to choose better where to use mallocarray(9). We still have more uses of mallocarray(9) but hopefully this is enough to bring swap usage to a reasonable level. Reported by: wosch PR: 225197
146 lines
3.6 KiB
C
146 lines
3.6 KiB
C
/*-
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* Copyright (c) 2004 Max Khon
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* Copyright (c) 2014 Juniper Networks, Inc.
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* Copyright (c) 2006-2016 Maxim Sobolev <sobomax@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/types.h>
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#include <sys/systm.h>
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#include <sys/malloc.h>
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#include <sys/zlib.h>
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#include <geom/uzip/g_uzip.h>
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#include <geom/uzip/g_uzip_dapi.h>
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#include <geom/uzip/g_uzip_zlib.h>
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struct g_uzip_zlib {
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uint32_t blksz;
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struct g_uzip_dapi pub;
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/* Zlib decoder structs */
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z_stream zs;
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};
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static void *z_alloc(void *, u_int, u_int);
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static void z_free(void *, void *);
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static int g_uzip_zlib_rewind(struct g_uzip_dapi *, const char *);
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static void
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g_uzip_zlib_free(struct g_uzip_dapi *zpp)
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{
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struct g_uzip_zlib *zp;
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zp = (struct g_uzip_zlib *)zpp->pvt;
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inflateEnd(&zp->zs);
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free(zp, M_GEOM_UZIP);
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}
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static int
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g_uzip_zlib_decompress(struct g_uzip_dapi *zpp, const char *gp_name, void *ibp,
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size_t ilen, void *obp)
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{
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int err;
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struct g_uzip_zlib *zp;
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zp = (struct g_uzip_zlib *)zpp->pvt;
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zp->zs.next_in = ibp;
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zp->zs.avail_in = ilen;
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zp->zs.next_out = obp;
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zp->zs.avail_out = zp->blksz;
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err = (inflate(&zp->zs, Z_FINISH) != Z_STREAM_END) ? 1 : 0;
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if (err != 0) {
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printf("%s: UZIP(zlib) inflate() failed\n", gp_name);
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}
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return (err);
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}
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static int
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g_uzip_zlib_rewind(struct g_uzip_dapi *zpp, const char *gp_name)
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{
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int err;
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struct g_uzip_zlib *zp;
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zp = (struct g_uzip_zlib *)zpp->pvt;
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err = 0;
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if (inflateReset(&zp->zs) != Z_OK) {
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printf("%s: UZIP(zlib) decoder reset failed\n", gp_name);
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err = 1;
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}
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return (err);
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}
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static int
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z_compressBound(int len)
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{
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return (len + (len >> 12) + (len >> 14) + 11);
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}
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struct g_uzip_dapi *
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g_uzip_zlib_ctor(uint32_t blksz)
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{
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struct g_uzip_zlib *zp;
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zp = malloc(sizeof(struct g_uzip_zlib), M_GEOM_UZIP, M_WAITOK);
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zp->zs.zalloc = z_alloc;
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zp->zs.zfree = z_free;
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if (inflateInit(&zp->zs) != Z_OK) {
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goto e1;
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}
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zp->blksz = blksz;
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zp->pub.max_blen = z_compressBound(blksz);
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zp->pub.decompress = &g_uzip_zlib_decompress;
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zp->pub.free = &g_uzip_zlib_free;
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zp->pub.rewind = &g_uzip_zlib_rewind;
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zp->pub.pvt = (void *)zp;
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return (&zp->pub);
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e1:
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free(zp, M_GEOM_UZIP);
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return (NULL);
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}
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static void *
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z_alloc(void *nil, u_int type, u_int size)
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{
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void *ptr;
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ptr = malloc(type * size, M_GEOM_UZIP, M_NOWAIT);
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return (ptr);
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}
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static void
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z_free(void *nil, void *ptr)
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{
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free(ptr, M_GEOM_UZIP);
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}
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