a15dcb0bf0
We already have send buffer allocated. This will greatly improving code as we guarantee by design that there is always JSON write context object. Change-Id: Id487c01448e1a65d9d4ef76d40a2a9f178b2f570 Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com> Signed-off-by: Pawel Kaminski <pawelx.kaminski@intel.com> Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/459341 Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com> Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com> Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
166 lines
4.9 KiB
C
166 lines
4.9 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright (c) Intel Corporation.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef SPDK_JSONRPC_INTERNAL_H_
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#define SPDK_JSONRPC_INTERNAL_H_
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#include "spdk/stdinc.h"
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#include "spdk/jsonrpc.h"
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#include "spdk_internal/log.h"
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#define SPDK_JSONRPC_RECV_BUF_SIZE (32 * 1024)
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#define SPDK_JSONRPC_SEND_BUF_SIZE_INIT (32 * 1024)
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#define SPDK_JSONRPC_SEND_BUF_SIZE_MAX (32 * 1024 * 1024)
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#define SPDK_JSONRPC_ID_MAX_LEN 128
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#define SPDK_JSONRPC_MAX_CONNS 64
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#define SPDK_JSONRPC_MAX_VALUES 1024
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struct spdk_jsonrpc_request {
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struct spdk_jsonrpc_server_conn *conn;
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/* Copy of request id value */
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const struct spdk_json_val *id;
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/* Total space allocated for send_buf */
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size_t send_buf_size;
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/* Number of bytes used in send_buf (<= send_buf_size) */
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size_t send_len;
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size_t send_offset;
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uint8_t *recv_buffer;
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struct spdk_json_val *values;
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size_t values_cnt;
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uint8_t *send_buf;
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struct spdk_json_write_ctx *response;
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STAILQ_ENTRY(spdk_jsonrpc_request) link;
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};
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struct spdk_jsonrpc_server_conn {
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struct spdk_jsonrpc_server *server;
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int sockfd;
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bool closed;
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size_t recv_len;
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uint8_t recv_buf[SPDK_JSONRPC_RECV_BUF_SIZE];
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uint32_t outstanding_requests;
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pthread_spinlock_t queue_lock;
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STAILQ_HEAD(, spdk_jsonrpc_request) send_queue;
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struct spdk_jsonrpc_request *send_request;
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spdk_jsonrpc_conn_closed_fn close_cb;
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void *close_cb_ctx;
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TAILQ_ENTRY(spdk_jsonrpc_server_conn) link;
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};
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struct spdk_jsonrpc_server {
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int sockfd;
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spdk_jsonrpc_handle_request_fn handle_request;
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TAILQ_HEAD(, spdk_jsonrpc_server_conn) free_conns;
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TAILQ_HEAD(, spdk_jsonrpc_server_conn) conns;
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struct spdk_jsonrpc_server_conn conns_array[SPDK_JSONRPC_MAX_CONNS];
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};
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struct spdk_jsonrpc_client_request {
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/* Total space allocated for send_buf */
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size_t send_buf_size;
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/* Number of bytes used in send_buf (<= send_buf_size) */
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size_t send_len;
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size_t send_offset;
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uint8_t *send_buf;
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};
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struct spdk_jsonrpc_client_response_internal {
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struct spdk_jsonrpc_client_response jsonrpc;
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bool ready;
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uint8_t *buf;
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size_t values_cnt;
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struct spdk_json_val values[];
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};
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struct spdk_jsonrpc_client {
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int sockfd;
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bool connected;
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size_t recv_buf_size;
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size_t recv_offset;
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char *recv_buf;
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/* Parsed response */
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struct spdk_jsonrpc_client_response_internal *resp;
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struct spdk_jsonrpc_client_request *request;
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};
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/* jsonrpc_server_tcp */
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void spdk_jsonrpc_server_handle_request(struct spdk_jsonrpc_request *request,
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const struct spdk_json_val *method,
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const struct spdk_json_val *params);
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void spdk_jsonrpc_server_handle_error(struct spdk_jsonrpc_request *request, int error);
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/* Might be called from any thread */
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void spdk_jsonrpc_server_send_response(struct spdk_jsonrpc_request *request);
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/* jsonrpc_server */
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int spdk_jsonrpc_parse_request(struct spdk_jsonrpc_server_conn *conn, const void *json,
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size_t size);
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/* Must be called only from server poll thread */
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void spdk_jsonrpc_free_request(struct spdk_jsonrpc_request *request);
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/*
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* Parse JSON data as RPC command response.
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*
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* \param client structure pointer of jsonrpc client
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*
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* \return 0 On success. Negative error code in error
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* -EAGAIN - If the provided data is not a complete JSON value (SPDK_JSON_PARSE_INCOMPLETE)
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* -EINVAL - If the provided data has invalid JSON syntax and can't be parsed (SPDK_JSON_PARSE_INVALID).
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* -ENOSPC - No space left to store parsed response.
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*/
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int spdk_jsonrpc_parse_response(struct spdk_jsonrpc_client *client);
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#endif
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