Refactor nghttp2_hd
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parent
fb43f8aa93
commit
00b2d06850
121
lib/nghttp2_hd.c
121
lib/nghttp2_hd.c
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@ -218,15 +218,15 @@ static void nghttp2_hd_context_free(nghttp2_hd_context *context)
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nghttp2_hd_ws_entry *ent = &context->ws[i];
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switch(ent->cat) {
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case NGHTTP2_HD_CAT_INDEXED:
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--ent->entry->ref;
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if(ent->entry->ref == 0) {
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nghttp2_hd_entry_free(ent->entry);
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--ent->indexed.entry->ref;
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if(ent->indexed.entry->ref == 0) {
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nghttp2_hd_entry_free(ent->indexed.entry);
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}
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break;
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case NGHTTP2_HD_CAT_LITERAL_IDXNAME:
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--ent->entv.entry->ref;
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if(ent->entv.entry->ref == 0) {
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nghttp2_hd_entry_free(ent->entv.entry);
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case NGHTTP2_HD_CAT_INDNAME:
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--ent->indname.entry->ref;
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if(ent->indname.entry->ref == 0) {
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nghttp2_hd_entry_free(ent->indname.entry);
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}
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break;
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default:
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@ -384,13 +384,13 @@ static int add_workingset(nghttp2_hd_context *context, nghttp2_hd_entry *ent)
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}
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ws_ent = &context->ws[context->wslen++];
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ws_ent->cat = NGHTTP2_HD_CAT_INDEXED;
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ws_ent->entry = ent;
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ws_ent->checked = 1;
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ws_ent->indexed.entry = ent;
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ws_ent->indexed.checked = 1;
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++ent->ref;
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return 0;
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}
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static int add_workingset_literal(nghttp2_hd_context *context,
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static int add_workingset_newname(nghttp2_hd_context *context,
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nghttp2_nv *nv)
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{
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nghttp2_hd_ws_entry *ws_ent;
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@ -398,12 +398,12 @@ static int add_workingset_literal(nghttp2_hd_context *context,
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return NGHTTP2_ERR_HEADER_COMP;
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}
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ws_ent = &context->ws[context->wslen++];
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ws_ent->cat = NGHTTP2_HD_CAT_LITERAL;
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ws_ent->nv = *nv;
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ws_ent->cat = NGHTTP2_HD_CAT_NEWNAME;
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ws_ent->newname.nv = *nv;
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return 0;
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}
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static int add_workingset_literal_indname(nghttp2_hd_context *context,
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static int add_workingset_indname(nghttp2_hd_context *context,
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nghttp2_hd_entry *ent,
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uint8_t *value, size_t valuelen)
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{
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@ -412,11 +412,11 @@ static int add_workingset_literal_indname(nghttp2_hd_context *context,
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return NGHTTP2_ERR_HEADER_COMP;
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}
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ws_ent = &context->ws[context->wslen++];
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ws_ent->cat = NGHTTP2_HD_CAT_LITERAL_IDXNAME;
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ws_ent->entv.entry = ent;
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ws_ent->cat = NGHTTP2_HD_CAT_INDNAME;
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ws_ent->indname.entry = ent;
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++ent->ref;
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ws_ent->entv.value = value;
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ws_ent->entv.valuelen = valuelen;
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ws_ent->indname.value = value;
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ws_ent->indname.valuelen = valuelen;
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return 0;
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}
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@ -428,20 +428,20 @@ static nghttp2_hd_ws_entry* find_in_workingset(nghttp2_hd_context *context,
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nghttp2_hd_ws_entry *ent = &context->ws[i];
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switch(ent->cat) {
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case NGHTTP2_HD_CAT_INDEXED:
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if(nghttp2_nv_equal(&ent->entry->nv, nv)) {
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if(nghttp2_nv_equal(&ent->indexed.entry->nv, nv)) {
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return ent;
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}
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break;
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case NGHTTP2_HD_CAT_LITERAL_IDXNAME:
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if(ent->entv.entry->nv.namelen == nv->namelen &&
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ent->entv.valuelen == nv->valuelen &&
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memcmp(ent->entv.entry->nv.name, nv->name, nv->namelen) == 0 &&
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memcmp(ent->entv.value, nv->value, nv->valuelen) == 0) {
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case NGHTTP2_HD_CAT_INDNAME:
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if(ent->indname.entry->nv.namelen == nv->namelen &&
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ent->indname.valuelen == nv->valuelen &&
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memcmp(ent->indname.entry->nv.name, nv->name, nv->namelen) == 0 &&
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memcmp(ent->indname.value, nv->value, nv->valuelen) == 0) {
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return ent;
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}
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break;
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case NGHTTP2_HD_CAT_LITERAL:
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if(nghttp2_nv_equal(&ent->nv, nv)) {
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case NGHTTP2_HD_CAT_NEWNAME:
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if(nghttp2_nv_equal(&ent->newname.nv, nv)) {
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return ent;
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}
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default:
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@ -459,7 +459,7 @@ static nghttp2_hd_ws_entry* find_in_workingset_by_index
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nghttp2_hd_ws_entry *ent = &context->ws[i];
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/* Compare against *frozen* index, not the current header table
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index. */
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if(ent->cat == NGHTTP2_HD_CAT_INDEXED && ent->index == index) {
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if(ent->cat == NGHTTP2_HD_CAT_INDEXED && ent->indexed.index == index) {
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return ent;
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}
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}
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@ -712,9 +712,9 @@ static void create_workingset(nghttp2_hd_context *context)
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for(i = 0; i < context->refsetlen; ++i) {
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nghttp2_hd_ws_entry *ent = &context->ws[i];
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ent->cat = NGHTTP2_HD_CAT_INDEXED;
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ent->entry = context->refset[i];
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ent->index = ent->entry->index;
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ent->checked = 0;
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ent->indexed.entry = context->refset[i];
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ent->indexed.index = ent->indexed.entry->index;
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ent->indexed.checked = 0;
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context->refset[i] = NULL;
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}
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context->wslen = context->refsetlen;
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@ -734,7 +734,9 @@ ssize_t nghttp2_hd_deflate_hd(nghttp2_hd_context *deflater,
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nghttp2_hd_ws_entry *ws_ent;
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ws_ent = find_in_workingset(deflater, &nv[i]);
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if(ws_ent) {
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ws_ent->checked = 1;
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if(ws_ent->cat == NGHTTP2_HD_CAT_INDEXED) {
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ws_ent->indexed.checked = 1;
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}
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} else {
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nghttp2_hd_entry *ent;
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ent = find_in_hd_table(deflater, &nv[i]);
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@ -768,9 +770,10 @@ ssize_t nghttp2_hd_deflate_hd(nghttp2_hd_context *deflater,
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}
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for(i = 0; i < deflater->wslen; ++i) {
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nghttp2_hd_ws_entry *ws_ent = &deflater->ws[i];
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if(!ws_ent->checked) {
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assert(ws_ent->cat == NGHTTP2_HD_CAT_INDEXED);
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rv = emit_index_block(buf_ptr, buflen_ptr, &offset, ws_ent->entry);
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if(ws_ent->cat == NGHTTP2_HD_CAT_INDEXED &&
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!ws_ent->indexed.checked) {
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rv = emit_index_block(buf_ptr, buflen_ptr, &offset,
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ws_ent->indexed.entry);
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if(rv < 0) {
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return rv;
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}
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@ -799,19 +802,19 @@ static ssize_t build_nv_array(nghttp2_hd_context *inflater,
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nghttp2_hd_ws_entry *ent = &inflater->ws[i];
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switch(ent->cat) {
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case NGHTTP2_HD_CAT_INDEXED:
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*nv = ent->entry->nv;
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ent->checked = 1;
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*nv = ent->indexed.entry->nv;
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ent->indexed.checked = 1;
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++nv;
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break;
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case NGHTTP2_HD_CAT_LITERAL_IDXNAME:
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nv->name = ent->entv.entry->nv.name;
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nv->namelen = ent->entv.entry->nv.namelen;
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nv->value = ent->entv.value;
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nv->valuelen = ent->entv.valuelen;
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case NGHTTP2_HD_CAT_INDNAME:
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nv->name = ent->indname.entry->nv.name;
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nv->namelen = ent->indname.entry->nv.namelen;
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nv->value = ent->indname.value;
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nv->valuelen = ent->indname.valuelen;
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++nv;
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break;
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case NGHTTP2_HD_CAT_LITERAL:
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*nv = ent->nv;
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case NGHTTP2_HD_CAT_NEWNAME:
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*nv = ent->newname.nv;
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++nv;
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break;
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default:
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@ -842,10 +845,10 @@ ssize_t nghttp2_hd_inflate_hd(nghttp2_hd_context *inflater,
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ws_ent = find_in_workingset_by_index(inflater, index);
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if(ws_ent) {
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assert(ws_ent->cat == NGHTTP2_HD_CAT_INDEXED);
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--ws_ent->entry->ref;
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if(ws_ent->entry->ref == 0) {
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nghttp2_hd_entry_free(ws_ent->entry);
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free(ws_ent->entry);
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--ws_ent->indexed.entry->ref;
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if(ws_ent->indexed.entry->ref == 0) {
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nghttp2_hd_entry_free(ws_ent->indexed.entry);
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free(ws_ent->indexed.entry);
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}
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ws_ent->cat = NGHTTP2_HD_CAT_NONE;
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} else {
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@ -883,7 +886,7 @@ ssize_t nghttp2_hd_inflate_hd(nghttp2_hd_context *inflater,
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in += valuelen;
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nghttp2_downcase(nv.name, nv.namelen);
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if(c == 0x60u) {
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rv = add_workingset_literal(inflater, &nv);
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rv = add_workingset_newname(inflater, &nv);
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} else {
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nghttp2_hd_entry *ent = add_hd_table_incremental(inflater, &nv);
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if(ent) {
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@ -918,7 +921,7 @@ ssize_t nghttp2_hd_inflate_hd(nghttp2_hd_context *inflater,
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value = in;
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in += valuelen;
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if((c & 0x60u) == 0x60u) {
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rv = add_workingset_literal_indname(inflater, ent, value, valuelen);
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rv = add_workingset_indname(inflater, ent, value, valuelen);
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} else {
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nghttp2_nv nv;
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nghttp2_hd_entry *new_ent;
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@ -1032,21 +1035,21 @@ int nghttp2_hd_end_headers(nghttp2_hd_context *context)
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nghttp2_hd_ws_entry *ws_ent = &context->ws[i];
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switch(ws_ent->cat) {
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case NGHTTP2_HD_CAT_INDEXED:
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if(ws_ent->checked == 0 || ws_ent->entry->ref == 1) {
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--ws_ent->entry->ref;
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if(ws_ent->entry->ref == 0) {
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nghttp2_hd_entry_free(ws_ent->entry);
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free(ws_ent->entry);
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if(ws_ent->indexed.checked == 0 || ws_ent->indexed.entry->ref == 1) {
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--ws_ent->indexed.entry->ref;
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if(ws_ent->indexed.entry->ref == 0) {
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nghttp2_hd_entry_free(ws_ent->indexed.entry);
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free(ws_ent->indexed.entry);
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}
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} else {
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context->refset[context->refsetlen++] = ws_ent->entry;
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context->refset[context->refsetlen++] = ws_ent->indexed.entry;
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}
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break;
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case NGHTTP2_HD_CAT_LITERAL_IDXNAME:
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--ws_ent->entv.entry->ref;
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if(ws_ent->entv.entry->ref == 0) {
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nghttp2_hd_entry_free(ws_ent->entv.entry);
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free(ws_ent->entv.entry);
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case NGHTTP2_HD_CAT_INDNAME:
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--ws_ent->indname.entry->ref;
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if(ws_ent->indname.entry->ref == 0) {
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nghttp2_hd_entry_free(ws_ent->indname.entry);
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free(ws_ent->indname.entry);
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}
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break;
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default:
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@ -63,28 +63,31 @@ typedef struct {
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typedef enum {
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NGHTTP2_HD_CAT_NONE,
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NGHTTP2_HD_CAT_INDEXED,
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NGHTTP2_HD_CAT_LITERAL_IDXNAME,
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NGHTTP2_HD_CAT_LITERAL
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NGHTTP2_HD_CAT_INDNAME,
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NGHTTP2_HD_CAT_NEWNAME
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} nghttp2_hd_entry_cat;
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typedef struct nghttp2_hd_ws_entry {
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nghttp2_hd_entry_cat cat;
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union {
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/* For NGHTTP2_HD_CAT_INDEXED */
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nghttp2_hd_entry *entry;
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/* For NGHTTP2_HD_CAT_LITERAL */
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nghttp2_nv nv;
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/* For NGHTTP2_HD_CAT_LITERAL_IDXNAME */
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struct {
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nghttp2_hd_entry *entry;
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uint8_t index;
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uint8_t checked;
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} indexed;
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/* For NGHTTP2_HD_CAT_NEWNAME */
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struct {
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nghttp2_nv nv;
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} newname;
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/* For NGHTTP2_HD_CAT_LITERAL_INDNAME */
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struct {
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/* The entry in header table the name stored */
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nghttp2_hd_entry *entry;
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uint8_t *value;
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uint16_t valuelen;
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} entv;
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} indname;
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};
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/* TODO Only usable with NGHTTP2_HD_CAT_INDEXED */
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uint8_t index;
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uint8_t checked;
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} nghttp2_hd_ws_entry;
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typedef struct {
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