vfp_gzip_end(struct busyobj *bo)
{
struct vgz *vg;
size_t dl;
const void *dp;
int i;
CHECK_OBJ_NOTNULL(bo, BUSYOBJ_MAGIC);
vg = bo->vgz_rx;
CHECK_OBJ_NOTNULL(vg, VGZ_MAGIC);
bo->vgz_rx = NULL;
if (bo->state == BOS_FAILED) {
(void)VGZ_Destroy(&vg);
return(0);
}
do {
VGZ_Ibuf(vg, "", 0);
if (VGZ_ObufStorage(bo, vg))
return(-1);
i = VGZ_Gzip(vg, &dp, &dl, VGZ_FINISH);
VBO_extend(bo, dl);
} while (i != Z_STREAM_END);
VGZ_UpdateObj(vg, bo->fetch_obj);
if (VGZ_Destroy(&vg) != VGZ_END)
return(VFP_Error(bo, "Gzip error at the very end"));
return (0);
}
vfp_gzip_bytes(struct busyobj *bo, struct http_conn *htc, ssize_t bytes)
{
struct vgz *vg;
ssize_t l, wl;
int i = -100;
size_t dl;
const void *dp;
CHECK_OBJ_NOTNULL(bo, BUSYOBJ_MAGIC);
vg = bo->vgz_rx;
CHECK_OBJ_NOTNULL(vg, VGZ_MAGIC);
AZ(vg->vz.avail_in);
while (bytes > 0 || !VGZ_IbufEmpty(vg)) {
if (VGZ_IbufEmpty(vg) && bytes > 0) {
l = vg->m_sz;
if (l > bytes)
l = bytes;
wl = htc->read(htc, vg->m_buf, l);
if (wl <= 0)
return (wl);
VGZ_Ibuf(vg, vg->m_buf, wl);
bytes -= wl;
}
if (VGZ_ObufStorage(bo, vg))
return(-1);
i = VGZ_Gzip(vg, &dp, &dl, VGZ_NORMAL);
assert(i == Z_OK);
VBO_extend(bo, dl);
}
return (1);
}
static ssize_t
vfp_vep_callback(struct vfp_ctx *vc, void *priv, ssize_t l, enum vgz_flag flg)
{
struct vef_priv *vef;
ssize_t dl;
const void *dp;
uint8_t *ptr;
int i;
CHECK_OBJ_NOTNULL(vc, VFP_CTX_MAGIC);
CAST_OBJ_NOTNULL(vef, priv, VEF_MAGIC);
assert(l >= 0);
if (vef->error) {
vef->tot += l;
return (vef->tot);
}
/*
* l == 0 is valid when 'flg' calls for action, but in the
* normal case we can just ignore a l==0 request.
* (It would cause Z_BUF_ERROR anyway)
*/
if (l == 0 && flg == VGZ_NORMAL)
return (vef->tot);
CHECK_OBJ_NOTNULL(vc->bo, BUSYOBJ_MAGIC);
VGZ_Ibuf(vef->vgz, vef->ibuf_o, l);
do {
dl = 0;
if (VFP_GetStorage(vc, &dl, &ptr) != VFP_OK) {
vef->error = ENOMEM;
vef->tot += l;
return (vef->tot);
}
VGZ_Obuf(vef->vgz, ptr, dl);
i = VGZ_Gzip(vef->vgz, &dp, &dl, flg);
VGZ_UpdateObj(vc, vef->vgz, VUA_UPDATE);
if (dl > 0) {
vef->tot += dl;
VFP_Extend(vc, dl);
}
} while (i != VGZ_ERROR &&
(!VGZ_IbufEmpty(vef->vgz) || VGZ_ObufFull(vef->vgz)));
assert(i == VGZ_ERROR || VGZ_IbufEmpty(vef->vgz));
vef->ibuf_o += l;
return (vef->tot);
}
vfp_gzip_pull(struct vfp_ctx *vc, struct vfp_entry *vfe, void *p,
ssize_t *lp)
{
ssize_t l;
struct vgz *vg;
enum vgzret_e vr = VGZ_ERROR;
const void *dp;
ssize_t dl;
enum vfp_status vp = VFP_ERROR;
CHECK_OBJ_NOTNULL(vc, VFP_CTX_MAGIC);
CHECK_OBJ_NOTNULL(vfe, VFP_ENTRY_MAGIC);
CAST_OBJ_NOTNULL(vg, vfe->priv1, VGZ_MAGIC);
AN(p);
AN(lp);
l = *lp;
*lp = 0;
VGZ_Obuf(vg, p, l);
do {
if (VGZ_IbufEmpty(vg)) {
l = vg->m_sz;
vp = VFP_Suck(vc, vg->m_buf, &l);
if (vp == VFP_ERROR)
break;
if (vp == VFP_END)
vg->flag = VGZ_FINISH;
VGZ_Ibuf(vg, vg->m_buf, l);
}
if (!VGZ_IbufEmpty(vg) || vg->flag == VGZ_FINISH) {
vr = VGZ_Gzip(vg, &dp, &dl, vg->flag);
if (vr < VGZ_OK)
return (VFP_Error(vc, "Gzip failed"));
if (dl > 0) {
VGZ_UpdateObj(vc, vg, VUA_UPDATE);
*lp = dl;
assert(dp == p);
return (VFP_OK);
}
}
AN(VGZ_IbufEmpty(vg));
} while (vg->flag != VGZ_FINISH);
if (vr != VGZ_END)
return (VFP_Error(vc, "Gzip failed"));
VGZ_UpdateObj(vc, vg, VUA_END_GZIP);
return (VFP_END);
}
static ssize_t
vfp_vep_callback(struct busyobj *bo, ssize_t l, enum vgz_flag flg)
{
struct vef_priv *vef;
size_t dl;
const void *dp;
int i;
CHECK_OBJ_NOTNULL(bo, BUSYOBJ_MAGIC);
vef = bo->vef_priv;
CHECK_OBJ_NOTNULL(vef, VEF_MAGIC);
assert(l >= 0);
if (vef->error) {
vef->tot += l;
return (vef->tot);
}
/*
* l == 0 is valid when 'flg' calls for action, but in the
* normal case we can just ignore a l==0 request.
* (It would cause Z_BUF_ERROR anyway)
*/
if (l == 0 && flg == VGZ_NORMAL)
return (vef->tot);
VGZ_Ibuf(vef->vgz, vef->ibuf_o, l);
do {
if (VGZ_ObufStorage(bo, vef->vgz)) {
vef->error = ENOMEM;
vef->tot += l;
return (vef->tot);
}
i = VGZ_Gzip(vef->vgz, &dp, &dl, flg);
vef->tot += dl;
VBO_extend(bo, dl);
} while (!VGZ_IbufEmpty(vef->vgz) ||
(flg != VGZ_NORMAL && VGZ_ObufFull(vef->vgz)));
assert(VGZ_IbufEmpty(vef->vgz));
vef->ibuf_o += l;
if (flg == VGZ_FINISH)
assert(i == 1); /* XXX */
else
assert(i == 0); /* XXX */
return (vef->tot);
}
static ssize_t
vfp_vep_callback(struct busyobj *bo, void *priv, ssize_t l, enum vgz_flag flg)
{
struct vef_priv *vef;
size_t dl;
const void *dp;
struct storage *st;
int i;
CHECK_OBJ_NOTNULL(bo, BUSYOBJ_MAGIC);
CAST_OBJ_NOTNULL(vef, priv, VEF_MAGIC);
assert(l >= 0);
if (vef->error) {
vef->tot += l;
return (vef->tot);
}
/*
* l == 0 is valid when 'flg' calls for action, but in the
* normal case we can just ignore a l==0 request.
* (It would cause Z_BUF_ERROR anyway)
*/
if (l == 0 && flg == VGZ_NORMAL)
return (vef->tot);
VGZ_Ibuf(vef->vgz, vef->ibuf_o, l);
do {
st = VFP_GetStorage(bo, 0);
if (st == NULL) {
vef->error = ENOMEM;
vef->tot += l;
return (vef->tot);
}
VGZ_Obuf(vef->vgz, st->ptr + st->len, st->space - st->len);
i = VGZ_Gzip(vef->vgz, &dp, &dl, flg);
vef->tot += dl;
VBO_extend(bo, dl);
} while (i != VGZ_ERROR &&
(!VGZ_IbufEmpty(vef->vgz) || VGZ_ObufFull(vef->vgz)));
assert(i == VGZ_ERROR || VGZ_IbufEmpty(vef->vgz));
vef->ibuf_o += l;
return (vef->tot);
}
static ssize_t
vfp_vep_callback(struct worker *wrk, ssize_t l, enum vgz_flag flg)
{
struct vef_priv *vef;
size_t dl, px;
const void *dp;
int i;
CHECK_OBJ_NOTNULL(wrk, WORKER_MAGIC);
CHECK_OBJ_NOTNULL(wrk->busyobj, BUSYOBJ_MAGIC);
vef = wrk->busyobj->vef_priv;
CHECK_OBJ_NOTNULL(vef, VEF_MAGIC);
assert(l >= 0);
if (vef->error) {
vef->tot += l;
return (vef->tot);
}
/*
* l == 0 is valid when 'flg' calls for action, but in the
* normal case we can just ignore a l==0 request.
* (It would cause Z_BUF_ERROR anyway)
*/
if (l == 0 && flg == VGZ_NORMAL)
return (vef->tot);
do {
px = vef->npend;
if (l < px)
px = l;
if (px != 0) {
VGZ_Ibuf(vef->vgz, vef->pending, px);
l -= px;
} else {
VGZ_Ibuf(vef->vgz, vef->bufp, l);
vef->bufp += l;
l = 0;
}
do {
if (VGZ_ObufStorage(wrk, vef->vgz)) {
vef->error = ENOMEM;
vef->tot += l;
return (vef->tot);
}
i = VGZ_Gzip(vef->vgz, &dp, &dl, flg);
vef->tot += dl;
wrk->busyobj->fetch_obj->len += dl;
} while (!VGZ_IbufEmpty(vef->vgz) ||
(flg != VGZ_NORMAL && VGZ_ObufFull(vef->vgz)));
if (px != 0) {
memmove(vef->pending, vef->pending + px,
vef->npend - px);
vef->npend -= px;
}
} while (l > 0);
if (flg == VGZ_FINISH)
assert(i == 1); /* XXX */
else
assert(i == 0); /* XXX */
return (vef->tot);
}
