예제 #1
0
파일: log.c 프로젝트: l8huang/ovs
static struct ovsdb_error *
parse_body(struct ovsdb_log *file, off_t offset, unsigned long int length,
           uint8_t sha1[SHA1_DIGEST_SIZE], struct json **jsonp)
{
    struct json_parser *parser;
    struct sha1_ctx ctx;

    sha1_init(&ctx);
    parser = json_parser_create(JSPF_TRAILER);

    while (length > 0) {
        char input[BUFSIZ];
        int chunk;

        chunk = MIN(length, sizeof input);
        if (fread(input, 1, chunk, file->stream) != chunk) {
            json_parser_abort(parser);
            return ovsdb_io_error(ferror(file->stream) ? errno : EOF,
                                  "%s: error reading %lu bytes "
                                  "starting at offset %lld", file->name,
                                  length, (long long int) offset);
        }
        sha1_update(&ctx, input, chunk);
        json_parser_feed(parser, input, chunk);
        length -= chunk;
    }

    sha1_final(&ctx, sha1);
    *jsonp = json_parser_finish(parser);
    return NULL;
}
int
jsonrpc_recv(struct jsonrpc *rpc, struct jsonrpc_msg **msgp)
{
    *msgp = NULL;
    if (rpc->status) {
        return rpc->status;
    }

    while (!rpc->received) {
        if (byteq_is_empty(&rpc->input)) {
            size_t chunk;
            int retval;

            chunk = byteq_headroom(&rpc->input);
            retval = stream_recv(rpc->stream, byteq_head(&rpc->input), chunk);
            if (retval < 0) {
                if (retval == -EAGAIN) {
                    return EAGAIN;
                } else {
                    VLOG_WARN_RL(&rl, "%s: receive error: %s",
                                 rpc->name, strerror(-retval));
                    jsonrpc_error(rpc, -retval);
                    return rpc->status;
                }
            } else if (retval == 0) {
                jsonrpc_error(rpc, EOF);
                return EOF;
            }
            byteq_advance_head(&rpc->input, retval);
        } else {
            size_t n, used;

            if (!rpc->parser) {
                rpc->parser = json_parser_create(0);
            }
            n = byteq_tailroom(&rpc->input);
            used = json_parser_feed(rpc->parser,
                                    (char *) byteq_tail(&rpc->input), n);
            byteq_advance_tail(&rpc->input, used);
            if (json_parser_is_done(rpc->parser)) {
                jsonrpc_received(rpc);
                if (rpc->status) {
                    const struct byteq *q = &rpc->input;
                    if (q->head <= BYTEQ_SIZE) {
                        stream_report_content(q->buffer, q->head,
                                              STREAM_JSONRPC,
                                              THIS_MODULE, rpc->name);
                    }
                    return rpc->status;
                }
            }
        }
    }

    *msgp = rpc->received;
    rpc->received = NULL;
    return 0;
}
예제 #3
0
SV *json_to_hash( const char *json_file )
{
  apr_pool_t *tmp_mp;
  apr_file_t *in_file;
  json_t *json;
  SV *hash = &PL_sv_undef;
  parser_t *json_parser;

  apr_pool_create( &tmp_mp, NULL );
  json_parser = json_parser_create( tmp_mp );
  if ( open_apr_input_file( tmp_mp, json_file, &in_file ) &&
       json_parser_parse_file_to_obj( tmp_mp, json_parser, in_file,
                                      &json ) ) {
    hash = json_to_perl_variable( json );
  }
  apr_pool_destroy( tmp_mp );

  return hash;
}
예제 #4
0
파일: json.c 프로젝트: wschnrid/yaz
struct json_node *json_parse2(const char *json_str, const char **errmsg,
                              size_t *pos)
{
    json_parser_t p = json_parser_create();
    struct json_node *n = 0;
    if (!p)
    {
        if (errmsg)
            *errmsg = "could not create parser";
    }
    else
    {
        n = json_parser_parse(p, json_str);
        if (!n && errmsg)
            *errmsg = json_parser_get_errmsg(p);
        if (pos)
            *pos = json_parser_get_position(p);
        json_parser_destroy(p);
    }
    return n;
}
예제 #5
0
파일: py_util.c 프로젝트: TheProjecter/jxtl
PyObject *json_to_dict( const char *json_file )
{
  apr_pool_t *tmp_mp;
  apr_file_t *in_file;
  json_t *json;
  PyObject *dict = NULL;
  parser_t *json_parser;

  apr_pool_create( &tmp_mp, NULL );
  json_parser = json_parser_create( tmp_mp );
  if ( open_apr_input_file( tmp_mp, json_file, &in_file ) &&
       json_parser_parse_file_to_obj( tmp_mp, json_parser, in_file,
                                      &json ) ) {
    dict = json_to_py_variable( json );
  }
  apr_pool_destroy( tmp_mp );
  
  if ( dict ) {
    return dict;
  }
  else {
    Py_RETURN_NONE;
  }
}
예제 #6
0
파일: jsonrpc.c 프로젝트: rafaelfonte/ovs
/* Attempts to receive a message from 'rpc'.
 *
 * If successful, stores the received message in '*msgp' and returns 0.  The
 * caller takes ownership of '*msgp' and must eventually destroy it with
 * jsonrpc_msg_destroy().
 *
 * Otherwise, stores NULL in '*msgp' and returns one of the following:
 *
 *   - EAGAIN: No message has been received.
 *
 *   - EOF: The remote end closed the connection gracefully.
 *
 *   - Otherwise an errno value that represents a JSON-RPC protocol violation
 *     or another error fatal to the connection.  'rpc' will not send or
 *     receive any more messages.
 */
int
jsonrpc_recv(struct jsonrpc *rpc, struct jsonrpc_msg **msgp)
{
    int i;

    *msgp = NULL;
    if (rpc->status) {
        return rpc->status;
    }

    for (i = 0; i < 50; i++) {
        size_t n, used;

        /* Fill our input buffer if it's empty. */
        if (byteq_is_empty(&rpc->input)) {
            size_t chunk;
            int retval;

            chunk = byteq_headroom(&rpc->input);
            retval = stream_recv(rpc->stream, byteq_head(&rpc->input), chunk);
            if (retval < 0) {
                if (retval == -EAGAIN) {
                    return EAGAIN;
                } else {
                    VLOG_WARN_RL(&rl, "%s: receive error: %s",
                                 rpc->name, ovs_strerror(-retval));
                    jsonrpc_error(rpc, -retval);
                    return rpc->status;
                }
            } else if (retval == 0) {
                jsonrpc_error(rpc, EOF);
                return EOF;
            }
            byteq_advance_head(&rpc->input, retval);
        }

        /* We have some input.  Feed it into the JSON parser. */
        if (!rpc->parser) {
            rpc->parser = json_parser_create(0);
        }
        n = byteq_tailroom(&rpc->input);
        used = json_parser_feed(rpc->parser,
                                (char *) byteq_tail(&rpc->input), n);
        byteq_advance_tail(&rpc->input, used);

        /* If we have complete JSON, attempt to parse it as JSON-RPC. */
        if (json_parser_is_done(rpc->parser)) {
            *msgp = jsonrpc_parse_received_message(rpc);
            if (*msgp) {
                return 0;
            }

            if (rpc->status) {
                const struct byteq *q = &rpc->input;
                if (q->head <= q->size) {
                    stream_report_content(q->buffer, q->head, STREAM_JSONRPC,
                                          THIS_MODULE, rpc->name);
                }
                return rpc->status;
            }
        }
    }

    return EAGAIN;
}