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-rw-r--r--contrib/qemu/qobject/json-streamer.c122
1 files changed, 0 insertions, 122 deletions
diff --git a/contrib/qemu/qobject/json-streamer.c b/contrib/qemu/qobject/json-streamer.c
deleted file mode 100644
index 1b2f9b1d107..00000000000
--- a/contrib/qemu/qobject/json-streamer.c
+++ /dev/null
@@ -1,122 +0,0 @@
-/*
- * JSON streaming support
- *
- * Copyright IBM, Corp. 2009
- *
- * Authors:
- * Anthony Liguori <aliguori@us.ibm.com>
- *
- * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
- * See the COPYING.LIB file in the top-level directory.
- *
- */
-
-#include "qapi/qmp/qlist.h"
-#include "qapi/qmp/qint.h"
-#include "qapi/qmp/qdict.h"
-#include "qemu-common.h"
-#include "qapi/qmp/json-lexer.h"
-#include "qapi/qmp/json-streamer.h"
-
-#define MAX_TOKEN_SIZE (64ULL << 20)
-#define MAX_NESTING (1ULL << 10)
-
-static void json_message_process_token(JSONLexer *lexer, QString *token, JSONTokenType type, int x, int y)
-{
- JSONMessageParser *parser = container_of(lexer, JSONMessageParser, lexer);
- QDict *dict;
-
- if (type == JSON_OPERATOR) {
- switch (qstring_get_str(token)[0]) {
- case '{':
- parser->brace_count++;
- break;
- case '}':
- parser->brace_count--;
- break;
- case '[':
- parser->bracket_count++;
- break;
- case ']':
- parser->bracket_count--;
- break;
- default:
- break;
- }
- }
-
- dict = qdict_new();
- qdict_put(dict, "type", qint_from_int(type));
- QINCREF(token);
- qdict_put(dict, "token", token);
- qdict_put(dict, "x", qint_from_int(x));
- qdict_put(dict, "y", qint_from_int(y));
-
- parser->token_size += token->length;
-
- qlist_append(parser->tokens, dict);
-
- if (type == JSON_ERROR) {
- goto out_emit_bad;
- } else if (parser->brace_count < 0 ||
- parser->bracket_count < 0 ||
- (parser->brace_count == 0 &&
- parser->bracket_count == 0)) {
- goto out_emit;
- } else if (parser->token_size > MAX_TOKEN_SIZE ||
- parser->bracket_count > MAX_NESTING ||
- parser->brace_count > MAX_NESTING) {
- /* Security consideration, we limit total memory allocated per object
- * and the maximum recursion depth that a message can force.
- */
- goto out_emit;
- }
-
- return;
-
-out_emit_bad:
- /* clear out token list and tell the parser to emit and error
- * indication by passing it a NULL list
- */
- QDECREF(parser->tokens);
- parser->tokens = NULL;
-out_emit:
- /* send current list of tokens to parser and reset tokenizer */
- parser->brace_count = 0;
- parser->bracket_count = 0;
- parser->emit(parser, parser->tokens);
- if (parser->tokens) {
- QDECREF(parser->tokens);
- }
- parser->tokens = qlist_new();
- parser->token_size = 0;
-}
-
-void json_message_parser_init(JSONMessageParser *parser,
- void (*func)(JSONMessageParser *, QList *))
-{
- parser->emit = func;
- parser->brace_count = 0;
- parser->bracket_count = 0;
- parser->tokens = qlist_new();
- parser->token_size = 0;
-
- json_lexer_init(&parser->lexer, json_message_process_token);
-}
-
-int json_message_parser_feed(JSONMessageParser *parser,
- const char *buffer, size_t size)
-{
- return json_lexer_feed(&parser->lexer, buffer, size);
-}
-
-int json_message_parser_flush(JSONMessageParser *parser)
-{
- return json_lexer_flush(&parser->lexer);
-}
-
-void json_message_parser_destroy(JSONMessageParser *parser)
-{
- json_lexer_destroy(&parser->lexer);
- QDECREF(parser->tokens);
-}