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Diffstat (limited to 'rpc/rpc-transport/socket/src/socket.h')
| -rw-r--r-- | rpc/rpc-transport/socket/src/socket.h | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/rpc/rpc-transport/socket/src/socket.h b/rpc/rpc-transport/socket/src/socket.h new file mode 100644 index 000000000..aa31ee2a7 --- /dev/null +++ b/rpc/rpc-transport/socket/src/socket.h @@ -0,0 +1,190 @@ +/* + Copyright (c) 2010 Gluster, Inc. <http://www.gluster.com> + This file is part of GlusterFS. + + GlusterFS is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published + by the Free Software Foundation; either version 3 of the License, + or (at your option) any later version. + + GlusterFS is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see + <http://www.gnu.org/licenses/>. +*/ + +#ifndef _SOCKET_H +#define _SOCKET_H + + +#ifndef _CONFIG_H +#define _CONFIG_H +#include "config.h" +#endif + +#include "event.h" +#include "rpc-transport.h" +#include "logging.h" +#include "dict.h" +#include "mem-pool.h" + +#ifndef MAX_IOVEC +#define MAX_IOVEC 16 +#endif /* MAX_IOVEC */ + +#define GF_DEFAULT_SOCKET_LISTEN_PORT 6969 + +/* This is the size set through setsockopt for + * both the TCP receive window size and the + * send buffer size. + * Till the time iobuf size becomes configurable, this size is set to include + * two iobufs + the GlusterFS protocol headers. + * Linux allows us to over-ride the max values for the system. + * Should we over-ride them? Because if we set a value larger than the default + * setsockopt will fail. Having larger values might be beneficial for + * IB links. + */ +#define GF_DEFAULT_SOCKET_WINDOW_SIZE (512 * GF_UNIT_KB) +#define GF_MAX_SOCKET_WINDOW_SIZE (1 * GF_UNIT_MB) +#define GF_MIN_SOCKET_WINDOW_SIZE (128 * GF_UNIT_KB) + +typedef enum { + SP_STATE_NADA = 0, + SP_STATE_COMPLETE, + SP_STATE_READING_FRAGHDR, + SP_STATE_READ_FRAGHDR, + SP_STATE_READING_FRAG, +} sp_rpcrecord_state_t; + +typedef enum { + SP_STATE_RPCFRAG_INIT, + SP_STATE_READING_MSGTYPE, + SP_STATE_READ_MSGTYPE, +} sp_rpcfrag_state_t; + +typedef enum { + SP_STATE_SIMPLE_MSG_INIT, + SP_STATE_READING_SIMPLE_MSG, +} sp_rpcfrag_simple_msg_state_t; + +typedef enum { + SP_STATE_VECTORED_REQUEST_INIT, + SP_STATE_READING_CREDBYTES, + SP_STATE_READ_CREDBYTES, /* read credential data. */ + SP_STATE_READING_VERFBYTES, + SP_STATE_READ_VERFBYTES, /* read verifier data */ + SP_STATE_READING_PROG, +} sp_rpcfrag_vectored_request_state_t; + +typedef enum { + SP_STATE_REQUEST_HEADER_INIT, + SP_STATE_READING_RPCHDR1, + SP_STATE_READ_RPCHDR1, /* read msg from beginning till and + * including credlen + */ +} sp_rpcfrag_request_header_state_t; + +struct ioq { + union { + struct list_head list; + struct { + struct ioq *next; + struct ioq *prev; + }; + }; + + struct iovec vector[MAX_IOVEC]; + int count; + struct iovec *pending_vector; + int pending_count; + struct iobref *iobref; +}; + +typedef struct { + sp_rpcfrag_request_header_state_t header_state; + sp_rpcfrag_vectored_request_state_t vector_state; +} sp_rpcfrag_request_state_t; + +typedef enum { + SP_STATE_VECTORED_REPLY_STATUS_INIT, + SP_STATE_READING_REPLY_STATUS, + SP_STATE_READ_REPLY_STATUS, +} sp_rpcfrag_vectored_reply_status_state_t; + +typedef enum { + SP_STATE_ACCEPTED_SUCCESS_REPLY_INIT, + SP_STATE_READING_PROC_HEADER, + SP_STATE_READ_PROC_HEADER, +} sp_rpcfrag_vectored_reply_accepted_success_state_t; + +typedef enum { + SP_STATE_ACCEPTED_REPLY_INIT, + SP_STATE_READING_REPLY_VERFLEN, + SP_STATE_READ_REPLY_VERFLEN, + SP_STATE_READING_REPLY_VERFBYTES, + SP_STATE_READ_REPLY_VERFBYTES, +} sp_rpcfrag_vectored_reply_accepted_state_t; + +typedef struct { + uint32_t accept_status; + sp_rpcfrag_vectored_reply_status_state_t status_state; + sp_rpcfrag_vectored_reply_accepted_state_t accepted_state; + sp_rpcfrag_vectored_reply_accepted_success_state_t accepted_success_state; +} sp_rpcfrag_vectored_reply_state_t; + +typedef struct { + int32_t sock; + int32_t idx; + unsigned char connected; // -1 = not connected. 0 = in progress. 1 = connected + char bio; + char connect_finish_log; + char submit_log; + union { + struct list_head ioq; + struct { + struct ioq *ioq_next; + struct ioq *ioq_prev; + }; + }; + struct { + sp_rpcrecord_state_t record_state; + struct { + char *fragcurrent; + uint32_t bytes_read; + uint32_t remaining_size; + struct iovec vector; + struct iovec *pending_vector; + union { + sp_rpcfrag_request_state_t request; + sp_rpcfrag_vectored_reply_state_t reply; + } call_body; + + sp_rpcfrag_simple_msg_state_t simple_state; + sp_rpcfrag_state_t state; + } frag; + struct iobuf *iobuf; + size_t iobuf_size; + struct iovec vector[2]; + int count; + struct iobuf *vectoriob; + size_t vectoriob_size; + rpc_request_info_t *request_info; + struct iovec *pending_vector; + int pending_count; + uint32_t fraghdr; + char complete_record; + msg_type_t msg_type; + size_t total_bytes_read; + } incoming; + pthread_mutex_t lock; + int windowsize; + char lowlat; + char nodelay; +} socket_private_t; + + +#endif |