示例#1
0
struct vgz *
VGZ_NewGzip(struct vsl_log *vsl, const char *id)
{
	struct vgz *vg;
	int i;

	vg = vgz_alloc_vgz(vsl, id);
	vg->dir = VGZ_GZ;
	VSC_C_main->n_gzip++;

	/*
	 * From zconf.h:
	 *
	 *	mem_needed = "a few kb"
	 *		+ (1 << (windowBits+2))
	 *		+  (1 << (memLevel+9))
	 *
	 * windowBits [8..15] (-> 1K..128K)
	 * memLevel [1..9] (-> 1K->256K)
	 */
	i = deflateInit2(&vg->vz,
	    cache_param->gzip_level,		/* Level */
	    Z_DEFLATED,				/* Method */
	    16 + 15,				/* Window bits (16=gzip) */
	    cache_param->gzip_memlevel,		/* memLevel */
	    Z_DEFAULT_STRATEGY);
	assert(Z_OK == i);
	return (vg);
}
示例#2
0
struct vgz *
VGZ_NewGzip(struct vsl_log *vsl, const char *id)
{
	struct vgz *vg;
	int i;

	vg = vgz_alloc_vgz(vsl, id);
	vg->dir = VGZ_GZ;
	VSC_C_main->n_gzip++;

	/*
	 * From zconf.h:
	 *
	 *	mem_needed = "a few kb"
	 *		+ (1 << (windowBits+2))
	 *		+  (1 << (memLevel+9))
	 *
	 * windowBits [8..15] (-> 1K..128K)
	 * memLevel [1..9] (-> 1K->256K)
	 *
	 * XXX: They probably needs to be params...
	 *
	 * XXX: It may be more efficent to malloc them, rather than have
	 * XXX: too many worker threads grow the stacks.
	 */
	i = deflateInit2(&vg->vz,
	    cache_param->gzip_level,		/* Level */
	    Z_DEFLATED,				/* Method */
	    16 + 15,				/* Window bits (16=gzip) */
	    cache_param->gzip_memlevel,		/* memLevel */
	    Z_DEFAULT_STRATEGY);
	assert(Z_OK == i);
	return (vg);
}
示例#3
0
static struct vgz *
VGZ_NewUngzip(struct vsl_log *vsl, const char *id)
{
	struct vgz *vg;

	vg = vgz_alloc_vgz(vsl, id);
	vg->dir = VGZ_UN;
	VSC_C_main->n_gunzip++;

	/*
	 * Max memory usage according to zonf.h:
	 *	mem_needed = "a few kb" + (1 << (windowBits))
	 * Since we don't control windowBits, we have to assume
	 * it is 15, so 34-35KB or so.
	 */
	assert(Z_OK == inflateInit2(&vg->vz, 31));
	return (vg);
}