Annotation of libaitrpc/inc/aitrpc.h, revision 1.8.2.11

1.1       misho       1: /*************************************************************************
                      2: * (C) 2010 AITNET ltd - Sofia/Bulgaria - <misho@aitbg.com>
                      3: *  by Michael Pounov <misho@openbsd-bg.org>
                      4: *
                      5: * $Author: misho $
1.8.2.11! misho       6: * $Id: aitrpc.h,v 1.8.2.10 2012/05/16 09:02:47 misho Exp $
1.1       misho       7: *
1.2       misho       8: **************************************************************************
                      9: The ELWIX and AITNET software is distributed under the following
                     10: terms:
                     11: 
                     12: All of the documentation and software included in the ELWIX and AITNET
                     13: Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org>
                     14: 
1.6       misho      15: Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
1.2       misho      16:        by Michael Pounov <misho@elwix.org>.  All rights reserved.
                     17: 
                     18: Redistribution and use in source and binary forms, with or without
                     19: modification, are permitted provided that the following conditions
                     20: are met:
                     21: 1. Redistributions of source code must retain the above copyright
                     22:    notice, this list of conditions and the following disclaimer.
                     23: 2. Redistributions in binary form must reproduce the above copyright
                     24:    notice, this list of conditions and the following disclaimer in the
                     25:    documentation and/or other materials provided with the distribution.
                     26: 3. All advertising materials mentioning features or use of this software
                     27:    must display the following acknowledgement:
                     28: This product includes software developed by Michael Pounov <misho@elwix.org>
                     29: ELWIX - Embedded LightWeight unIX and its contributors.
                     30: 4. Neither the name of AITNET nor the names of its contributors
                     31:    may be used to endorse or promote products derived from this software
                     32:    without specific prior written permission.
                     33: 
                     34: THIS SOFTWARE IS PROVIDED BY AITNET AND CONTRIBUTORS ``AS IS'' AND
                     35: ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     36: IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     37: ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     38: FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     39: DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     40: OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     41: HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     42: LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     43: OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     44: SUCH DAMAGE.
                     45: */
1.1       misho      46: #ifndef __AITRPC_H
                     47: #define __AITRPC_H
                     48: 
                     49: 
                     50: #include <assert.h>
                     51: #include <stdlib.h>
                     52: #include <string.h>
1.6       misho      53: #include <errno.h>
1.1       misho      54: #include <sys/types.h>
                     55: #include <sys/param.h>
1.2       misho      56: #if !defined(__NetBSD__)
1.1       misho      57: #include <sys/limits.h>
1.2       misho      58: #endif
1.1       misho      59: #include <sys/socket.h>
1.8.2.1   misho      60: #include <sys/queue.h>
1.4       misho      61: #include <aitio.h>
1.6       misho      62: #include <aitsched.h>
1.1       misho      63: 
                     64: 
1.8.2.1   misho      65: #define RPC_VERSION            4
1.1       misho      66: #define RPC_DEFPORT            2611
                     67: 
1.6       misho      68: /* RPC call request flags */
                     69: 
                     70: #define RPC_REPLY              0x0
                     71: #define RPC_NOREPLY            0x1
1.1       misho      72: 
                     73: /* RPC builtin registed calls */
                     74: 
1.8.2.5   misho      75: #define CALL_MAX_ID            65535
                     76: 
1.2       misho      77: #define CALL_BLOBSHUTDOWN      "rpcBLOBServerShutdown"
1.8.2.5   misho      78: #define CALL_BLOBSHUTDOWN_ID   65530
1.2       misho      79: #define CALL_BLOBCLIENTS       "rpcBLOBServerClients"
1.8.2.5   misho      80: #define CALL_BLOBCLIENTS_ID    65529
1.2       misho      81: #define CALL_BLOBVARS          "rpcBLOBServerVars"
1.8.2.5   misho      82: #define CALL_BLOBVARS_ID       65528
1.2       misho      83: #define CALL_BLOBSTATE         "rpcBLOBServerState"
1.8.2.5   misho      84: #define CALL_BLOBSTATE_ID      65527
1.2       misho      85: 
                     86: #define CALL_SRVSHUTDOWN       "rpcServerShutdown"
1.8.2.5   misho      87: #define CALL_SRVSHUTDOWN_ID    65534
1.1       misho      88: #define CALL_SRVCLIENTS                "rpcServerClients"
1.8.2.5   misho      89: #define CALL_SRVCLIENTS_ID     65533
1.1       misho      90: #define CALL_SRVCALLS          "rpcServerCalls"
1.8.2.5   misho      91: #define CALL_SRVCALLS_ID       65532
1.1       misho      92: #define CALL_SRVSESSIONS       "rpcServerSessions"
1.8.2.5   misho      93: #define CALL_SRVSESSIONS_ID    65531
1.1       misho      94: 
                     95: 
                     96: /* RPC types */
                     97: 
                     98: typedef enum {
1.4       misho      99:        disable, enable, running, kill,         /* for blob.state */
1.6       misho     100:        ok, error, no,                          /* for blob reply */
1.4       misho     101:        get, set, unset                         /* for blob request */
1.2       misho     102: } cmd_type_t;
                    103: 
1.1       misho     104: 
1.4       misho     105: #define RPC_CALLBACK_CHECK_INPUT(_f)   do { \
                    106:                                                assert((_f)); \
                    107:                                                if (!(_f)) { \
1.6       misho     108:                                                        rpc_SetErr(EINVAL, \
                    109:                                                                        "Invalid callback parameters ..."); \
1.2       misho     110:                                                        return -1; \
                    111:                                                } \
                    112:                                        } while (0)
1.4       misho     113: #define RPC_CALLBACK_CHK_ARGS(_f, _n)  do { \
                    114:                                                RPC_CALLBACK_CHECK_INPUT((_f)); \
1.5       misho     115:                                                if ((_f) && io_arraySize((_f)->func_vars) < _n) { \
1.6       misho     116:                                                        rpc_SetErr(EINVAL, \
                    117:                                                                        "Not enough number of arguments!"); \
1.1       misho     118:                                                        return -1; \
                    119:                                                } \
1.2       misho     120:                                        } while (0)
1.1       misho     121: 
                    122: 
                    123: /* RPC session identification */
                    124: 
                    125: typedef struct {
                    126:        uint8_t         sess_version;
                    127:        uint32_t        sess_program;
1.8.2.2   misho     128:        uint8_t         sess_process;
                    129: } __packed rpc_sess_t;         /* size == 6 bytes */
1.1       misho     130: 
                    131: 
                    132: /* Server managment RPC functions ... */
                    133: 
                    134: /* Network RPC packet - Client request */
                    135: 
                    136: struct tagRPCCall {
                    137:        rpc_sess_t      call_session;
1.6       misho     138: 
1.8.2.2   misho     139:        uint16_t        call_seq;
1.7       misho     140:        uint16_t        call_len;
1.8.2.2   misho     141:        uint16_t        call_crc;
1.1       misho     142: 
1.6       misho     143:        union {
                    144:                struct {
                    145:                        uint64_t        flags;
                    146:                }       call_req;
                    147:                struct {
                    148:                        int32_t         ret;
                    149:                        int32_t         eno;
                    150:                }       call_rep;
                    151:        };
1.1       misho     152: 
1.8.2.2   misho     153:        uint16_t        call_tag;
                    154:        uint16_t        call_argc;
                    155:        ait_val_t       call_argv[0];
1.8.2.4   misho     156: } __packed;                    /* size == 24 bytes */
1.1       misho     157: 
1.2       misho     158: /* Network BLOB packet - Header */
                    159: 
                    160: struct tagBLOBHdr {
                    161:        rpc_sess_t      hdr_session;
                    162:        uint8_t         hdr_cmd;
                    163:        uint32_t        hdr_var;
                    164:        uint32_t        hdr_len;
                    165:        uint32_t        hdr_ret;
1.6       misho     166:        uint16_t        hdr_crc;
                    167:        uint8_t         hdr_pad;
1.2       misho     168: } __packed;
                    169: 
1.1       misho     170: /* Network RPC client & server elements */
                    171: 
1.8.2.2   misho     172: /* RPC function registration element! */
                    173: typedef struct tagRPCFunc {
                    174:        ait_val_t               func_name;
                    175: 
                    176:        array_t                 *func_vars;
                    177: 
                    178:        void                    *func_parent;
                    179:        TAILQ_ENTRY(tagRPCFunc) func_node;
                    180: } rpc_func_t;
                    181: 
                    182: 
1.8.2.8   misho     183: /* BLOB register element */
                    184: typedef struct tagBLOB {
                    185:        uint32_t                blob_var;       /* BLOB id */
                    186: 
                    187:        size_t                  blob_len;       /* size of allocated BLOB data */
                    188:        void                    *blob_data;     /* mapped BLOB data */
                    189: 
                    190:        TAILQ_ENTRY(tagBLOB)    blob_node;
                    191: } rpc_blob_t;
                    192: 
                    193: 
1.1       misho     194: typedef struct {
1.8.2.1   misho     195:        int             cli_id;         /* slot id */
                    196:        int             cli_sock;       /* socket fd */
                    197:        io_sockaddr_t   cli_sa;         /* host address */
                    198:        ait_val_t       cli_buf;        /* network buffer */
1.8       misho     199: 
1.8.2.1   misho     200:        void            *cli_parent;    /* pointer to parent rpc_srv_t for server or to rpc_sess_t for client */
1.1       misho     201: } rpc_cli_t;
                    202: 
                    203: typedef struct {
1.8.2.1   misho     204:        rpc_sess_t                      srv_session;    /* RPC session registration info */
                    205:        int                             srv_netbuf;     /* size of network buffer */
1.1       misho     206: 
1.8.2.1   misho     207:        sched_root_task_t               *srv_root;      /* RPC server scheduler */
                    208:        intptr_t                        srv_kill;       /* Scheduler condition variable */
1.2       misho     209: 
1.8.2.1   misho     210:        rpc_cli_t                       srv_server;     /* RPC server socket */
                    211:        array_t                         *srv_clients;   /* connected rpc client sockets */
1.2       misho     212: 
1.8.2.1   misho     213:        TAILQ_HEAD(, tagRPCFunc)        srv_funcs;      /* RPC functions list */
1.2       misho     214: 
                    215:        struct {
1.8.2.10  misho     216:                sched_root_task_t               *root;          /* BLOB server scheduler */
                    217:                intptr_t                        kill;           /* BLOB server state: ==0 disable | !=0 enable */
                    218: 
1.8.2.8   misho     219:                ait_val_t                       dir;            /* BLOB states directory */
1.2       misho     220: 
1.8.2.8   misho     221:                rpc_cli_t                       server;         /* BLOB server socket */
                    222:                array_t                         *clients;       /* connected blob client sockets */
1.1       misho     223: 
1.8.2.8   misho     224:                TAILQ_HEAD(, tagBLOB)           blobs;          /* registered blob variables list */
1.8.2.1   misho     225:        }                               srv_blob;
1.1       misho     226: } rpc_srv_t;
                    227: 
                    228: 
1.2       misho     229: /* 
1.6       misho     230:  * (*rpc_callback_t)() - Callback type definition for RPC call in server process
                    231:  *
1.2       misho     232:  * @arg1 = current execution RPC call function
                    233:  * @arg2 = number of items in input array from call request
                    234:  * @arg3 = input array with values from RPC call execution request
                    235:  * return: -1 error or >-1 success execution
                    236:  */
1.4       misho     237: typedef int (*rpc_callback_t)(rpc_func_t *, int, array_t *);
1.1       misho     238: 
                    239: 
                    240: // -----------------------------------------------------------------------
                    241: 
                    242: /* Error support functions */
                    243: 
1.3       misho     244: // rpc_GetErrno() Get error code of last operation
                    245: inline int rpc_GetErrno();
                    246: // rpc_GetError() Get error text of last operation
                    247: inline const char *rpc_GetError();
1.1       misho     248: 
                    249: 
1.5       misho     250: /*
1.8.2.1   misho     251:  * rpc_chkPktSession() - Check RPC session
1.6       misho     252:  *
1.5       misho     253:  * @p = packet session
                    254:  * @s = active session
1.8.2.1   misho     255:  * return: -1, 1, 2, 3 are errors or 0 ok
1.5       misho     256:  */
                    257: inline int rpc_chkPktSession(rpc_sess_t *p, rpc_sess_t *s);
                    258: /*
1.8.2.1   misho     259:  * rpc_addPktSession() - Prepare session into network format
1.6       misho     260:  *
1.5       misho     261:  * @p = packet session
1.8.2.1   misho     262:  * @s = host session
1.5       misho     263:  * return: -1 error or 0 ok
                    264:  */
                    265: inline int rpc_addPktSession(rpc_sess_t *p, rpc_sess_t *s);
1.8.2.1   misho     266: /*
                    267:  * rpc_register_srvServices() - Register internal service functions
                    268:  *
                    269:  * @srv = RPC server instance
                    270:  * return: -1 error or 0 ok
                    271:  */
                    272: int rpc_register_srvServices(rpc_srv_t * __restrict srv);
1.8.2.6   misho     273: /*
                    274:  * rpc_register_blobServices() - Register internal service functions
                    275:  *
                    276:  * @srv = RPC server instance
                    277:  * return: -1 error or 0 ok
                    278:  */
                    279: int rpc_register_blobServices(rpc_srv_t * __restrict srv);
1.5       misho     280: 
                    281: 
1.1       misho     282: /* RPC Server side functions */
                    283: 
                    284: /*
1.6       misho     285:  * rpc_srv_initServer() - Init & create RPC Server
                    286:  *
1.1       misho     287:  * @regProgID = ProgramID for authentication & recognition
                    288:  * @regProcID = ProcessID for authentication & recognition
                    289:  * @concurentClients = Concurent clients at same time to this server
1.4       misho     290:  * @netBuf = Network buffer length, if =0 == BUFSIZ (also meaning max RPC packet)
1.3       misho     291:  * @csHost = Host name or address for bind server, if NULL any address
1.1       misho     292:  * @Port = Port for bind server, if Port == 0 default port is selected
                    293:  * return: NULL == error or !=NULL bind and created RPC server instance
                    294:  */
1.8.2.2   misho     295: rpc_srv_t *rpc_srv_initServer(unsigned int regProgID, unsigned char regProcID, 
                    296:                int concurentClients, int netBuf, 
                    297:                const char *csHost, unsigned short Port);
1.1       misho     298: /*
1.6       misho     299:  * rpc_srv_endServer() - Destroy RPC server, close all opened sockets and free resources
                    300:  *
1.5       misho     301:  * @psrv = RPC Server instance
1.1       misho     302:  * return: none
                    303:  */
1.5       misho     304: void rpc_srv_endServer(rpc_srv_t ** __restrict psrv);
1.1       misho     305: /*
1.6       misho     306:  * rpc_srv_loopServer() - Execute Main server loop and wait for clients requests
                    307:  *
1.1       misho     308:  * @srv = RPC Server instance
                    309:  * return: -1 error or 0 ok, infinite loop ...
                    310:  */
1.4       misho     311: int rpc_srv_loopServer(rpc_srv_t * __restrict srv);
                    312: #define rpc_srv_execServer(_srv, _sync)        do { assert((_srv)); pthread_t __tid; \
1.8.2.10  misho     313:                                                if (!(_srv)->srv_kill) { \
                    314:                                                        pthread_create(&__tid, NULL, (void*(*)(void*)) \
                    315:                                                                        rpc_srv_loopServer, (_srv)); \
                    316:                                                        if ((_sync)) \
                    317:                                                                pthread_join(__tid, (void**) (_sync)); \
                    318:                                                        else \
                    319:                                                                pthread_detach(__tid); \
                    320:                                                } } while (0)
1.1       misho     321: 
                    322: /*
1.6       misho     323:  * rpc_srv_initBLOBServer() - Init & create BLOB Server
                    324:  *
1.3       misho     325:  * @srv = RPC server instance
1.2       misho     326:  * @Port = Port for bind server, if Port == 0 default port is selected
                    327:  * @diskDir = Disk place for BLOB file objects
                    328:  * return: -1 == error or 0 bind and created BLOB server instance
                    329:  */
                    330: int rpc_srv_initBLOBServer(rpc_srv_t * __restrict srv, u_short Port, const char *diskDir);
                    331: /*
1.6       misho     332:  * rpc_srv_endBLOBServer() - Destroy BLOB server, close all opened sockets and free resources
                    333:  *
1.2       misho     334:  * @srv = RPC Server instance
                    335:  * return: none
                    336:  */
                    337: void rpc_srv_endBLOBServer(rpc_srv_t * __restrict srv);
                    338: /*
1.6       misho     339:  * rpc_srv_loopBLOB() - Execute Main BLOB server loop and wait for clients requests
                    340:  *
1.2       misho     341:  * @srv = RPC Server instance
                    342:  * return: -1 error or 0 ok, infinite loop ...
                    343:  */
1.8.2.10  misho     344: int rpc_srv_loopBLOBServer(rpc_srv_t * __restrict srv);
1.4       misho     345: #define rpc_srv_execBLOBServer(_srv)   do { assert((_srv)); pthread_t __tid; \
1.8.2.10  misho     346:                                                if (!(_srv)->srv_kill && !(_srv)->srv_blob.kill) { \
1.4       misho     347:                                                        pthread_create(&__tid, NULL, (void*(*)(void*)) \
1.8.2.10  misho     348:                                                                        rpc_srv_loopBLOBServer, (_srv)); \
1.4       misho     349:                                                        pthread_detach(__tid); \
                    350:                                                } \
                    351:                                        } while (0)
1.2       misho     352: 
                    353: /*
1.6       misho     354:  * rpc_srv_registerCall() - Register call to RPC server
                    355:  *
1.1       misho     356:  * @srv = RPC Server instance
1.8.2.4   misho     357:  * @tag = Function tag
                    358:  * @funcaddr = Function address
                    359:  * @args = Number of return function arguments
                    360:  * return: -1 error, 0 already registered tag or 1 register ok
1.1       misho     361:  */
1.8.2.4   misho     362: int rpc_srv_registerCall(rpc_srv_t * __restrict srv, unsigned short tag, 
                    363:                void *funcaddr, unsigned short args);
1.1       misho     364: /*
1.6       misho     365:  * rpc_srv_unregisterCall() - Unregister call from RPC server
                    366:  *
1.1       misho     367:  * @srv = RPC Server instance
1.8.2.4   misho     368:  * @tag = Function tag
1.1       misho     369:  * return: -1 error, 0 not found call, 1 unregister ok
                    370:  */
1.8.2.4   misho     371: int rpc_srv_unregisterCall(rpc_srv_t * __restrict srv, unsigned short tag);
1.1       misho     372: /*
1.8.2.4   misho     373:  * rpc_srv_getCall()  - Get registered call from RPC server
1.6       misho     374:  *
1.1       misho     375:  * @srv = RPC Server instance
                    376:  * @tag = tag for function
                    377:  * return: NULL not found call, !=NULL return call
                    378:  */
1.8.2.2   misho     379: inline rpc_func_t *rpc_srv_getCall(rpc_srv_t * __restrict srv, uint16_t tag);
1.1       misho     380: /*
1.6       misho     381:  * rpc_srv_execCall() - Execute registered call from RPC server
                    382:  *
1.1       misho     383:  * @call = Register RPC call
                    384:  * @rpc = IN RPC call structure
1.4       misho     385:  * @args = IN RPC calling arguments from RPC client
1.1       misho     386:  * return: -1 error, !=-1 ok
                    387:  */
1.2       misho     388: int rpc_srv_execCall(rpc_func_t * __restrict call, struct tagRPCCall * __restrict rpc, 
1.4       misho     389:                array_t * __restrict args);
1.1       misho     390: 
                    391: 
                    392: /*
1.8.2.9   misho     393:  * rpc_srv_blobCreate() - Create and map blob to memory region and return object
1.6       misho     394:  *
1.2       misho     395:  * @srv = RPC Server instance
                    396:  * @len = BLOB length object
                    397:  * return: NULL error or !=NULL allocated BLOB object
                    398:  */
                    399: inline rpc_blob_t *rpc_srv_blobCreate(rpc_srv_t * __restrict srv, int len);
                    400: /*
1.6       misho     401:  * rpc_srv_blobMap() - Map blob to memory region 
                    402:  *
1.2       misho     403:  * @srv = RPC Server instance
                    404:  * @blob = Map to this BLOB element
                    405:  * return: -1 error or 0 ok
                    406:  */
                    407: inline int rpc_srv_blobMap(rpc_srv_t * __restrict srv, rpc_blob_t * __restrict blob);
                    408: /*
1.6       misho     409:  * rpc_srv_blobUnmap() - Unmap blob memory region 
                    410:  *
1.2       misho     411:  * @blob = Mapped BLOB element
                    412:  * return: none
                    413:  */
                    414: inline void rpc_srv_blobUnmap(rpc_blob_t * __restrict blob);
                    415: /*
1.6       misho     416:  * rpc_srv_blobFree() - Free blob from disk & memory
                    417:  *
1.2       misho     418:  * @srv = RPC Server instance
                    419:  * @blob = Mapped BLOB element
                    420:  * return: -1 error or 0 ok
                    421:  */
                    422: inline int rpc_srv_blobFree(rpc_srv_t * __restrict srv, rpc_blob_t * __restrict blob);
                    423: 
                    424: /*
1.6       misho     425:  * rpc_srv_registerBLOB() - Register new BLOB to server
                    426:  *
1.2       misho     427:  * @srv = RPC Server instance
                    428:  * @len = BLOB length
                    429:  * return: NULL error or new registered BLOB
                    430:  */
                    431: rpc_blob_t *rpc_srv_registerBLOB(rpc_srv_t * __restrict srv, size_t len);
                    432: /*
1.6       misho     433:  * rpc_srv_unregisterBLOB() - Unregister BLOB from server
                    434:  *
1.2       misho     435:  * @srv = RPC Server instance
                    436:  * @var = BLOB Variable for unregister
                    437:  * return: -1 error, 0 not found call, 1 unregister ok
                    438:  */
                    439: int rpc_srv_unregisterBLOB(rpc_srv_t * __restrict srv, uint32_t var);
                    440: /*
1.6       misho     441:  * rpc_srv_getBLOB() - Get registered BLOB 
                    442:  *
1.2       misho     443:  * @srv = RPC Server instance
                    444:  * @var = hash for variable
                    445:  * return: NULL not found, !=NULL return blob var
                    446:  */
                    447: inline rpc_blob_t *rpc_srv_getBLOB(rpc_srv_t * __restrict srv, uint32_t var);
                    448: 
                    449: /*
1.6       misho     450:  * rpc_srv_sendBLOB() - Send mapped BLOB to client
                    451:  *
1.2       misho     452:  * @cli = Client instance
                    453:  * @blob = Mapped BLOB element
                    454:  * return: -1 error, 0 ok
                    455:  */
                    456: int rpc_srv_sendBLOB(rpc_cli_t * __restrict cli, rpc_blob_t * __restrict blob);
                    457: /*
1.6       misho     458:  * rpc_srv_recvBLOB() - Receive BLOB from client
                    459:  *
1.2       misho     460:  * @cli = Client instance
                    461:  * @blob = Mapped BLOB element
                    462:  * return: -1 error, 0 ok, >0 unreceived data from client, may be error?
                    463:  */
                    464: int rpc_srv_recvBLOB(rpc_cli_t * __restrict cli, rpc_blob_t * __restrict blob);
                    465: 
1.4       misho     466: /* CLIENT part of functions */
                    467: 
1.2       misho     468: /*
1.6       misho     469:  * rpc_cli_sendBLOB() - Send BLOB to server
                    470:  *
1.2       misho     471:  * @cli = Client instance
                    472:  * @var = BLOB variable
                    473:  * @data = BLOB data
                    474:  * return: -1 error, 0 ok, 1 remote error
                    475:  */
1.4       misho     476: int rpc_cli_sendBLOB(rpc_cli_t * __restrict cli, ait_val_t * __restrict var, void * __restrict data);
1.2       misho     477: /*
1.6       misho     478:  * rpc_cli_recvBLOB() - Receive BLOB from server
                    479:  *
1.2       misho     480:  * @cli = Client instance
                    481:  * @var = BLOB variable
                    482:  * @data = BLOB data, must be free after use!
                    483:  * return: -1 error, 0 ok, 1 remote error
                    484:  */
1.4       misho     485: int rpc_cli_recvBLOB(rpc_cli_t * __restrict cli, ait_val_t * __restrict var, void ** __restrict data);
1.2       misho     486: /*
1.6       misho     487:  * rpc_cli_delBLOB() - Delete BLOB from server
                    488:  *
1.2       misho     489:  * @cli = Client instance
                    490:  * @var = BLOB variable
                    491:  * return: -1 error, 0 ok, 1 remote error
                    492:  */
1.4       misho     493: int rpc_cli_delBLOB(rpc_cli_t * __restrict cli, ait_val_t * __restrict var);
1.2       misho     494: /*
1.6       misho     495:  * rpc_cli_getBLOB() - Receive BLOB from server and Delete after that.
                    496:  *
1.2       misho     497:  * @cli = Client instance
                    498:  * @var = BLOB variable
                    499:  * @data = BLOB data, must be free after use!
                    500:  * return: -1 error, 0 ok, >0 remote error
                    501:  */
1.6       misho     502: inline int rpc_cli_getBLOB(rpc_cli_t * __restrict cli, ait_val_t * __restrict var, 
                    503:                void ** __restrict data);
1.2       misho     504: 
                    505: 
1.1       misho     506: /* RPC Client side functions */
                    507: 
                    508: /*
1.6       misho     509:  * rpc_cli_openClient() - Connect to RPC Server
                    510:  *
1.1       misho     511:  * @ProgID = ProgramID for RPC session request
                    512:  * @ProcID = ProcessID for RPC session request
1.4       misho     513:  * @netBuf = Network buffer length, if =0 == BUFSIZ (also meaning max RPC packet)
1.1       misho     514:  * @family = Family socket type, AF_INET or AF_INET6
                    515:  * @csHost = Host name or IP address for bind server
                    516:  * @Port = Port for bind server, if Port == 0 default port is selected
                    517:  * return: NULL == error or !=NULL connection to RPC server established
                    518:  */
1.8.2.11! misho     519: rpc_cli_t *rpc_cli_openClient(unsigned int ProgID, unsigned char ProcID, int netBuf, 
        !           520:                unsigned short family, const char *csHost, unsigned short Port);
1.1       misho     521: /*
1.6       misho     522:  * rpc_cli_closeClient() - Close connection to RPC server and free resources
                    523:  *
1.1       misho     524:  * @cli = RPC Client session
                    525:  * return: none
                    526:  */
1.8.2.11! misho     527: void rpc_cli_closeClient(rpc_cli_t ** __restrict cli);
1.1       misho     528: /*
1.6       misho     529:  * rpc_cli_execCall() - Execute RPC call
                    530:  *
1.1       misho     531:  * @cli = RPC Client session
1.7       misho     532:  * @noreply = We not want RPC reply
1.8.2.11! misho     533:  * @tag = Function tag for execution
1.3       misho     534:  * @in_vars = IN RPC call array of rpc values
1.4       misho     535:  * @out_vars = OUT returned array of rpc values, must be free after use with rpc_cli_freeVals()
1.1       misho     536:  * return: -1 error or != -1 ok result
                    537:  */
1.8.2.11! misho     538: int rpc_cli_execCall(rpc_cli_t *cli, int noreply, u_short tag, 
1.4       misho     539:                array_t * __restrict in_vars, array_t ** __restrict out_vars);
1.1       misho     540: 
                    541: 
1.2       misho     542: /*
1.6       misho     543:  * rpc_cli_openBLOBClient() - Connect to BLOB Server
                    544:  *
1.2       misho     545:  * @rpccli = RPC Client session
                    546:  * @Port = Port for bind server, if Port == 0 default port is selected
                    547:  * return: NULL == error or !=NULL connection to BLOB server established
                    548:  */
                    549: rpc_cli_t *rpc_cli_openBLOBClient(rpc_cli_t * __restrict rpccli, u_short Port);
                    550: /*
1.6       misho     551:  * rpc_cli_closeBLOBClient() - Close connection to BLOB server and free resources
                    552:  *
1.2       misho     553:  * @cli = BLOB Client session
                    554:  * return: none
                    555:  */
1.8.2.11! misho     556: void rpc_cli_closeBLOBClient(rpc_cli_t ** __restrict cli);
1.2       misho     557: 
                    558: 
1.1       misho     559: #endif

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