gboolean li_chunkqueue_extract_to_bytearr(liVRequest *vr, liChunkQueue *cq, goffset len, GByteArray *dest) {
liChunkIter ci;
goffset coff, clen;
g_byte_array_set_size(dest, 0);
if (len > cq->length) return FALSE;
g_byte_array_set_size(dest, len);
g_byte_array_set_size(dest, 0);
ci = li_chunkqueue_iter(cq);
while (len > 0) {
coff = 0;
clen = li_chunkiter_length(ci);
while (coff < clen) {
gchar *buf;
off_t we_have;
if (LI_HANDLER_GO_ON != li_chunkiter_read(vr, ci, coff, len, &buf, &we_have)) goto error;
g_byte_array_append(dest, (guint8*) buf, we_have);
coff += we_have;
len -= we_have;
if (len <= 0) return TRUE;
}
li_chunkiter_next(&ci);
}
return TRUE;
error:
g_byte_array_set_size(dest, 0);
return FALSE;
}
liHandlerResult li_chunk_parser_next(liChunkParserCtx *ctx, char **p, char **pe, GError **err) {
off_t l;
liHandlerResult res;
g_return_val_if_fail (err == NULL || *err == NULL, LI_HANDLER_ERROR);
if (NULL == ctx->curi.element) return LI_HANDLER_WAIT_FOR_EVENT;
while (ctx->start >= (l = li_chunkiter_length(ctx->curi))) {
liChunkIter i = ctx->curi;
/* Wait at the end of the last chunk if it gets extended */
if (!li_chunkiter_next(&i)) return LI_HANDLER_WAIT_FOR_EVENT;
ctx->curi = i;
ctx->start -= l;
}
if (NULL == ctx->curi.element) return LI_HANDLER_WAIT_FOR_EVENT;
if (LI_HANDLER_GO_ON != (res = li_chunkiter_read(ctx->curi, ctx->start, l - ctx->start, &ctx->buf, &ctx->length, err))) {
return res;
}
*p = ctx->buf;
*pe = ctx->buf + ctx->length;
return LI_HANDLER_GO_ON;
}
gboolean li_chunk_extract_to(liChunkParserMark from, liChunkParserMark to, GString *dest, GError **err) {
liChunkParserMark i;
g_return_val_if_fail (err == NULL || *err == NULL, FALSE);
g_string_set_size(dest, to.abs_pos - from.abs_pos);
li_g_string_clear(dest);
for ( i = from; i.ci.element != to.ci.element; li_chunkiter_next(&i.ci) ) {
goffset len = li_chunkiter_length(i.ci);
while (i.pos < len) {
char *buf;
off_t we_have;
if (LI_HANDLER_GO_ON != li_chunkiter_read(i.ci, i.pos, len - i.pos, &buf, &we_have, err)) goto error;
if (dest->len + we_have < dest->allocated_len) {
/* "fast" append */
memcpy(dest->str + dest->len, buf, we_have);
dest->len += we_have;
dest->str[dest->len] = '\0';
} else {
g_string_append_len(dest, buf, we_have);
}
i.pos += we_have;
}
i.pos = 0;
}
while (i.pos < to.pos) {
char *buf;
off_t we_have;
if (LI_HANDLER_GO_ON != li_chunkiter_read(i.ci, i.pos, to.pos - i.pos, &buf, &we_have, err)) goto error;
if (dest->len + we_have < dest->allocated_len) {
/* "fast" append */
memcpy(dest->str + dest->len, buf, we_have);
dest->len += we_have;
dest->str[dest->len] = '\0';
} else {
g_string_append_len(dest, buf, we_have);
}
i.pos += we_have;
}
return TRUE;
error:
li_g_string_clear(dest);
return FALSE;
}
liHandlerResult li_chunk_parser_next(liVRequest *vr, liChunkParserCtx *ctx, char **p, char **pe) {
off_t l;
liHandlerResult res;
if (NULL == ctx->curi.element) return LI_HANDLER_WAIT_FOR_EVENT;
while (ctx->start >= (l = li_chunkiter_length(ctx->curi))) {
liChunkIter i = ctx->curi;
/* Wait at the end of the last chunk if it gets extended */
if (!li_chunkiter_next(&i)) return LI_HANDLER_WAIT_FOR_EVENT;
ctx->curi = i;
ctx->start -= l;
}
if (NULL == ctx->curi.element) return LI_HANDLER_WAIT_FOR_EVENT;
if (LI_HANDLER_GO_ON != (res = li_chunkiter_read(vr, ctx->curi, ctx->start, l - ctx->start, &ctx->buf, &ctx->length))) {
return res;
}
*p = ctx->buf;
*pe = ctx->buf + ctx->length;
return LI_HANDLER_GO_ON;
}
