72 	fileid_t *filep;  in cf_alloc()  local
76 	filep = (fileid_t *)opaque;  in cf_alloc()
78 	if (nbytes > (DECOMP_BUFSIZE - filep->fi_dcscrused)) {  in cf_alloc()
81 		ptr = &filep->fi_dcscrbuf[filep->fi_dcscrused];  in cf_alloc()
82 		filep->fi_dcscrused += nbytes;  in cf_alloc()
105 cf_check_compressed(fileid_t *filep)  in cf_check_compressed()  argument
121 	if (filep->fi_inode->i_size < 3)  in cf_check_compressed()
123 	filep->fi_offset = 0;  in cf_check_compressed()
124 	if ((filep->fi_getblock)(filep) == -1)  in cf_check_compressed()
126 	filep->fi_offset = 0;  in cf_check_compressed()
127 	filep->fi_count = 0;  in cf_check_compressed()
128 	filep->fi_cfoff = 0;  in cf_check_compressed()
129 	filebytes = (unsigned char *)filep->fi_memp;  in cf_check_compressed()
134 	filep->fi_flags |= FI_COMPRESSED;  in cf_check_compressed()
136 	dprintf("file %s is compressed\n", filep->fi_path);  in cf_check_compressed()
142 		filep->fi_dcscrbuf = scratch_bufs[--free_dcomp_bufs];  in cf_check_compressed()
144 		filep->fi_dcscrbuf = bkmem_alloc(DECOMP_BUFSIZE);  in cf_check_compressed()
147 	filep->fi_dcscrused = 0;  in cf_check_compressed()
149 	filep->fi_dcstream = zsp;  in cf_check_compressed()
155 	zsp->opaque = filep;  in cf_check_compressed()
175 cf_close(fileid_t *filep)  in cf_close()  argument
177 	if ((filep->fi_flags & FI_COMPRESSED) == 0)  in cf_close()
179 	dprintf("cf_close: %s\n", filep->fi_path);  in cf_close()
180 	(void) inflateEnd(filep->fi_dcstream);  in cf_close()
181 	bkmem_free(filep->fi_dcstream, sizeof (z_stream));  in cf_close()
183 		bkmem_free(filep->fi_dcscrbuf, DECOMP_BUFSIZE);  in cf_close()
185 		scratch_bufs[free_dcomp_bufs++] = filep->fi_dcscrbuf;  in cf_close()
190 cf_rewind(fileid_t *filep)  in cf_rewind()  argument
194 	dprintf("cf_rewind: %s\n", filep->fi_path);  in cf_rewind()
195 	zsp = filep->fi_dcstream;  in cf_rewind()
199 	filep->fi_cfoff = 0;  in cf_rewind()
212 cf_read(fileid_t *filep, caddr_t buf, size_t count)  in cf_read()  argument
221 	dprintf("cf_read: %s ", filep->fi_path);  in cf_read()
223 	zsp = filep->fi_dcstream;  in cf_read()
224 	ip = filep->fi_inode;  in cf_read()
229 		if (zsp->avail_in == 0 && filep->fi_cfoff < ip->i_size) {  in cf_read()
233 			soff = filep->fi_offset;  in cf_read()
234 			smemp = filep->fi_memp;  in cf_read()
235 			filep->fi_memp = NULL;  in cf_read()
236 			filep->fi_offset = filep->fi_cfoff;  in cf_read()
237 			filep->fi_count = 0;  in cf_read()
238 			if ((*filep->fi_getblock)(filep) == -1)  in cf_read()
240 			filep->fi_offset = soff;  in cf_read()
241 			zsp->next_in = (unsigned char *)filep->fi_memp;  in cf_read()
242 			zsp->avail_in = filep->fi_count;  in cf_read()
243 			filep->fi_memp = smemp;  in cf_read()
244 			filep->fi_cfoff += filep->fi_count;  in cf_read()
256 		if (filep->fi_cfoff >= ip->i_size || err == Z_STREAM_END)  in cf_read()
267 cf_seek(fileid_t *filep, off_t addr, int whence)  in cf_seek()  argument
272 	dprintf("cf_seek: %s ", filep->fi_path);  in cf_seek()
274 	zsp = filep->fi_dcstream;  in cf_seek()
281 		cf_rewind(filep);  in cf_seek()
282 		filep->fi_offset = 0;  in cf_seek()
288 		(void) cf_read(filep, seek_scrbuf, readsz);  in cf_seek()