Annotation of libaitrpc/inc/aitrpc.h, revision 1.9.2.1

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 $
1.9.2.1 ! misho       6: * $Id: aitrpc.h,v 1.9 2012/05/19 00:29:50 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>
1.9       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: 
1.9       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: 
1.9       misho      75: #define CALL_TAG_MAX           65535
                     76: 
                     77: #define CALL_SRVPING           65534
                     78: 
                     79: #define CALL_SRVSHUTDOWN       65533
                     80: #define CALL_SRVCLIENTS                65532
                     81: #define CALL_SRVCALLS          65531
                     82: #define CALL_SRVSESSIONS       65530
                     83: 
                     84: #define CALL_BLOBSHUTDOWN      65529
                     85: #define CALL_BLOBCLIENTS       65528
                     86: #define CALL_BLOBVARS          65527
1.1       misho      87: 
                     88: 
                     89: /* RPC types */
                     90: 
                     91: typedef enum {
1.6       misho      92:        ok, error, no,                          /* for blob reply */
1.4       misho      93:        get, set, unset                         /* for blob request */
1.2       misho      94: } cmd_type_t;
                     95: 
1.1       misho      96: 
1.9       misho      97: #define RPC_CALLBACK_CHECK_INPUT(x)    do { \
                     98:                                                assert((x)); \
                     99:                                                if (!(x)) { \
1.6       misho     100:                                                        rpc_SetErr(EINVAL, \
                    101:                                                                        "Invalid callback parameters ..."); \
1.2       misho     102:                                                        return -1; \
                    103:                                                } \
                    104:                                        } while (0)
1.1       misho     105: 
                    106: 
                    107: /* RPC session identification */
                    108: 
                    109: typedef struct {
                    110:        uint8_t         sess_version;
                    111:        uint32_t        sess_program;
1.9       misho     112:        uint8_t         sess_process;
                    113: } __packed rpc_sess_t;         /* size == 6 bytes */
1.1       misho     114: 
                    115: 
                    116: /* Server managment RPC functions ... */
                    117: 
                    118: /* Network RPC packet - Client request */
                    119: 
                    120: struct tagRPCCall {
                    121:        rpc_sess_t      call_session;
1.6       misho     122: 
1.9       misho     123:        uint16_t        call_seq;
1.7       misho     124:        uint16_t        call_len;
1.9       misho     125:        uint16_t        call_crc;
1.1       misho     126: 
1.6       misho     127:        union {
                    128:                struct {
                    129:                        uint64_t        flags;
                    130:                }       call_req;
                    131:                struct {
                    132:                        int32_t         ret;
                    133:                        int32_t         eno;
                    134:                }       call_rep;
                    135:        };
1.1       misho     136: 
1.9       misho     137:        uint16_t        call_tag;
                    138:        uint16_t        call_argc;
                    139:        ait_val_t       call_argv[0];
                    140: } __packed;                    /* size == 24 bytes */
                    141: #define RPC_CHK_NOREPLY(x)     ((x)->call_req.flags & RPC_NOREPLY)
1.1       misho     142: 
1.2       misho     143: /* Network BLOB packet - Header */
                    144: 
                    145: struct tagBLOBHdr {
                    146:        rpc_sess_t      hdr_session;
                    147:        uint8_t         hdr_cmd;
                    148:        uint32_t        hdr_var;
                    149:        uint32_t        hdr_len;
                    150:        uint32_t        hdr_ret;
1.6       misho     151:        uint16_t        hdr_crc;
                    152:        uint8_t         hdr_pad;
1.9       misho     153: } __packed;                    /* size == 22 bytes */
1.2       misho     154: 
1.1       misho     155: /* Network RPC client & server elements */
                    156: 
1.9       misho     157: /* RPC function registration element! */
                    158: typedef struct tagRPCFunc {
                    159:        ait_val_t               func_name;
1.1       misho     160: 
1.9       misho     161:        void                    *func_parent;
                    162:        TAILQ_ENTRY(tagRPCFunc) func_node;
                    163: } rpc_func_t;
                    164: #define RPC_FUNC_SERVER(x)     ((rpc_srv_t*) (x)->func_parent)
1.8       misho     165: 
1.1       misho     166: 
1.9       misho     167: /* BLOB register element */
1.2       misho     168: typedef struct tagBLOB {
1.9       misho     169:        uint32_t                blob_var;       /* BLOB id */
1.2       misho     170: 
1.9       misho     171:        size_t                  blob_len;       /* size of allocated BLOB data */
                    172:        void                    *blob_data;     /* mapped BLOB data */
1.2       misho     173: 
1.9       misho     174:        TAILQ_ENTRY(tagBLOB)    blob_node;
1.2       misho     175: } rpc_blob_t;
                    176: 
1.9       misho     177: 
1.1       misho     178: typedef struct {
1.9       misho     179:        int             cli_id;         /* slot id */
                    180:        int             cli_sock;       /* socket fd */
                    181:        io_sockaddr_t   cli_sa;         /* host address */
                    182:        ait_val_t       cli_buf;        /* network buffer */
1.1       misho     183: 
1.9       misho     184:        array_t         *cli_vars;      /* function return variables */
1.2       misho     185: 
1.9       misho     186:        void            *cli_parent;    /* pointer to parent rpc_srv_t for server or to rpc_sess_t for client */
                    187: } rpc_cli_t;
                    188: #define RPC_RETVARS(x)         ((x)->cli_vars)
                    189: #define RPC_SRV_SERVER(x)      ((rpc_srv_t*) (x)->cli_parent)
                    190: #define RPC_CLI_SESSION(x)     ((rpc_sess_t*) (x)->cli_parent)
                    191: 
                    192: typedef struct {
                    193:        rpc_sess_t                      srv_session;    /* RPC session registration info */
                    194:        int                             srv_netbuf;     /* size of network buffer */
1.2       misho     195: 
1.9       misho     196:        pthread_t                       srv_tid;        /* RPC exec pthread */
                    197:        sched_root_task_t               *srv_root;      /* RPC server scheduler */
                    198:        intptr_t                        srv_kill;       /* Scheduler condition variable */
                    199: 
                    200:        rpc_cli_t                       srv_server;     /* RPC server socket */
                    201:        array_t                         *srv_clients;   /* connected rpc client sockets */
                    202: 
                    203:        TAILQ_HEAD(, tagRPCFunc)        srv_funcs;      /* RPC functions list */
1.2       misho     204: 
                    205:        struct {
1.9       misho     206:                pthread_t                       tid;            /* BLOB exec pthread */
                    207:                sched_root_task_t               *root;          /* BLOB server scheduler */
                    208:                intptr_t                        kill;           /* BLOB server state: ==0 disable | !=0 enable */
1.2       misho     209: 
1.9       misho     210:                ait_val_t                       dir;            /* BLOB states directory */
1.1       misho     211: 
1.9       misho     212:                rpc_cli_t                       server;         /* BLOB server socket */
                    213:                array_t                         *clients;       /* connected blob client sockets */
                    214: 
                    215:                TAILQ_HEAD(, tagBLOB)           blobs;          /* registered blob variables list */
                    216:        }                               srv_blob;
1.1       misho     217: } rpc_srv_t;
                    218: 
                    219: 
1.2       misho     220: /* 
1.6       misho     221:  * (*rpc_callback_t)() - Callback type definition for RPC call in server process
                    222:  *
1.9       misho     223:  * @arg1 = RPC client
                    224:  * @arg2 = RPC packet header
1.2       misho     225:  * @arg3 = input array with values from RPC call execution request
                    226:  * return: -1 error or >-1 success execution
                    227:  */
1.9       misho     228: typedef int (*rpc_callback_t)(rpc_cli_t *, struct tagRPCCall *, array_t *);
1.1       misho     229: 
                    230: 
1.9       misho     231: /* ----------------------------------------------------------------------- */
1.1       misho     232: 
                    233: /* Error support functions */
                    234: 
1.3       misho     235: // rpc_GetErrno() Get error code of last operation
                    236: inline int rpc_GetErrno();
                    237: // rpc_GetError() Get error text of last operation
                    238: inline const char *rpc_GetError();
1.1       misho     239: 
                    240: 
1.5       misho     241: /*
1.9       misho     242:  * rpc_chkPktSession() - Check RPC session
1.6       misho     243:  *
1.5       misho     244:  * @p = packet session
                    245:  * @s = active session
1.9       misho     246:  * return: -1, 1, 2, 3 are errors or 0 ok
1.5       misho     247:  */
                    248: inline int rpc_chkPktSession(rpc_sess_t *p, rpc_sess_t *s);
                    249: /*
1.9       misho     250:  * rpc_addPktSession() - Prepare session into network format
1.6       misho     251:  *
1.5       misho     252:  * @p = packet session
1.9       misho     253:  * @s = host session
1.5       misho     254:  * return: -1 error or 0 ok
                    255:  */
                    256: inline int rpc_addPktSession(rpc_sess_t *p, rpc_sess_t *s);
1.9       misho     257: /*
                    258:  * rpc_register_srvPing() - Register ping service function
                    259:  *
                    260:  * @srv = RPC server instance
                    261:  * return: -1 error or 0 ok
                    262:  */
                    263: inline int rpc_register_srvPing(rpc_srv_t * __restrict srv);
                    264: /*
                    265:  * rpc_register_srvServices() - Register internal service functions
                    266:  *
                    267:  * @srv = RPC server instance
                    268:  * return: -1 error or 0 ok
                    269:  */
                    270: int rpc_register_srvServices(rpc_srv_t * __restrict srv);
                    271: /*
                    272:  * rpc_register_blobServices() - Register internal service functions
                    273:  *
                    274:  * @srv = RPC server instance
                    275:  * return: -1 error or 0 ok
                    276:  */
                    277: int rpc_register_blobServices(rpc_srv_t * __restrict srv);
1.5       misho     278: 
                    279: 
1.1       misho     280: /* RPC Server side functions */
                    281: 
                    282: /*
1.6       misho     283:  * rpc_srv_initServer() - Init & create RPC Server
                    284:  *
1.1       misho     285:  * @regProgID = ProgramID for authentication & recognition
                    286:  * @regProcID = ProcessID for authentication & recognition
                    287:  * @concurentClients = Concurent clients at same time to this server
1.9       misho     288:  * @netBuf = Network buffer length (min:512 bytes), if =0 == BUFSIZ (also meaning max RPC packet)
1.3       misho     289:  * @csHost = Host name or address for bind server, if NULL any address
1.1       misho     290:  * @Port = Port for bind server, if Port == 0 default port is selected
                    291:  * return: NULL == error or !=NULL bind and created RPC server instance
                    292:  */
1.9       misho     293: rpc_srv_t *rpc_srv_initServer(unsigned int regProgID, unsigned char regProcID, 
                    294:                int concurentClients, int netBuf, 
                    295:                const char *csHost, unsigned short Port);
1.1       misho     296: /*
1.6       misho     297:  * rpc_srv_endServer() - Destroy RPC server, close all opened sockets and free resources
                    298:  *
1.5       misho     299:  * @psrv = RPC Server instance
1.1       misho     300:  * return: none
                    301:  */
1.9       misho     302: inline void rpc_srv_endServer(rpc_srv_t ** __restrict psrv);
1.1       misho     303: /*
1.6       misho     304:  * rpc_srv_loopServer() - Execute Main server loop and wait for clients requests
                    305:  *
1.1       misho     306:  * @srv = RPC Server instance
                    307:  * return: -1 error or 0 ok, infinite loop ...
                    308:  */
1.4       misho     309: int rpc_srv_loopServer(rpc_srv_t * __restrict srv);
1.9       misho     310: #define rpc_srv_execServer(_srv, _sync)        do { assert((_srv)); \
                    311:                                                if (!(_srv)->srv_kill) { \
                    312:                                                        pthread_create(&(_srv)->srv_tid, NULL, (void*(*)(void*)) \
                    313:                                                                        rpc_srv_loopServer, (_srv)); \
                    314:                                                        if ((_sync)) \
                    315:                                                                pthread_join((_srv)->srv_tid, (void**) (_sync)); \
                    316:                                                        else \
                    317:                                                                pthread_detach((_srv)->srv_tid); \
                    318:                                                } } while (0)
1.1       misho     319: 
                    320: /*
1.6       misho     321:  * rpc_srv_initBLOBServer() - Init & create BLOB Server
                    322:  *
1.3       misho     323:  * @srv = RPC server instance
1.2       misho     324:  * @Port = Port for bind server, if Port == 0 default port is selected
                    325:  * @diskDir = Disk place for BLOB file objects
                    326:  * return: -1 == error or 0 bind and created BLOB server instance
                    327:  */
1.9       misho     328: int rpc_srv_initBLOBServer(rpc_srv_t * __restrict srv, unsigned short Port, const char *diskDir);
1.2       misho     329: /*
1.6       misho     330:  * rpc_srv_endBLOBServer() - Destroy BLOB server, close all opened sockets and free resources
                    331:  *
1.2       misho     332:  * @srv = RPC Server instance
                    333:  * return: none
                    334:  */
1.9       misho     335: inline void rpc_srv_endBLOBServer(rpc_srv_t * __restrict srv);
1.2       misho     336: /*
1.6       misho     337:  * rpc_srv_loopBLOB() - Execute Main BLOB server loop and wait for clients requests
                    338:  *
1.2       misho     339:  * @srv = RPC Server instance
                    340:  * return: -1 error or 0 ok, infinite loop ...
                    341:  */
1.9       misho     342: int rpc_srv_loopBLOBServer(rpc_srv_t * __restrict srv);
                    343: #define rpc_srv_execBLOBServer(_srv)   do { assert((_srv)); \
                    344:                                                if (!(_srv)->srv_kill && !(_srv)->srv_blob.kill) { \
                    345:                                                        pthread_create(&(_srv)->srv_blob.tid, NULL, \
                    346:                                                                        (void*(*)(void*)) \
                    347:                                                                        rpc_srv_loopBLOBServer, (_srv)); \
                    348:                                                        pthread_detach((_srv)->srv_blob.tid); \
1.4       misho     349:                                                } \
                    350:                                        } while (0)
1.2       misho     351: 
                    352: /*
1.6       misho     353:  * rpc_srv_registerCall() - Register call to RPC server
                    354:  *
1.1       misho     355:  * @srv = RPC Server instance
1.9       misho     356:  * @tag = Function tag
                    357:  * @funcaddr = Function address
                    358:  * return: -1 error, 0 already registered tag or 1 register ok
1.1       misho     359:  */
1.9       misho     360: int rpc_srv_registerCall(rpc_srv_t * __restrict srv, unsigned short tag, void *funcaddr);
1.1       misho     361: /*
1.6       misho     362:  * rpc_srv_unregisterCall() - Unregister call from RPC server
                    363:  *
1.1       misho     364:  * @srv = RPC Server instance
1.9       misho     365:  * @tag = Function tag
1.1       misho     366:  * return: -1 error, 0 not found call, 1 unregister ok
                    367:  */
1.9       misho     368: int rpc_srv_unregisterCall(rpc_srv_t * __restrict srv, unsigned short tag);
1.1       misho     369: /*
1.9       misho     370:  * rpc_srv_getCall()  - Get registered call from RPC server
1.6       misho     371:  *
1.1       misho     372:  * @srv = RPC Server instance
                    373:  * @tag = tag for function
                    374:  * return: NULL not found call, !=NULL return call
                    375:  */
1.9       misho     376: inline rpc_func_t *rpc_srv_getCall(rpc_srv_t * __restrict srv, uint16_t tag);
1.1       misho     377: /*
1.9       misho     378:  * rpc_srv_execCall() Execute registered call from RPC server
1.6       misho     379:  *
1.9       misho     380:  * @cli = RPC client
1.1       misho     381:  * @rpc = IN RPC call structure
1.9       misho     382:  * @funcname = Execute RPC function
1.4       misho     383:  * @args = IN RPC calling arguments from RPC client
1.1       misho     384:  * return: -1 error, !=-1 ok
                    385:  */
1.9       misho     386: int rpc_srv_execCall(rpc_cli_t * __restrict cli, struct tagRPCCall * __restrict rpc, 
                    387:                ait_val_t funcname, array_t * __restrict args);
1.1       misho     388: 
                    389: 
1.2       misho     390: /*
1.9       misho     391:  * rpc_srv_blobCreate() - Create and map blob to memory region and return object
1.6       misho     392:  *
1.2       misho     393:  * @srv = RPC Server instance
                    394:  * @len = BLOB length object
                    395:  * return: NULL error or !=NULL allocated BLOB object
                    396:  */
                    397: inline rpc_blob_t *rpc_srv_blobCreate(rpc_srv_t * __restrict srv, int len);
                    398: /*
1.6       misho     399:  * rpc_srv_blobMap() - Map blob to memory region 
                    400:  *
1.2       misho     401:  * @srv = RPC Server instance
                    402:  * @blob = Map to this BLOB element
                    403:  * return: -1 error or 0 ok
                    404:  */
                    405: inline int rpc_srv_blobMap(rpc_srv_t * __restrict srv, rpc_blob_t * __restrict blob);
                    406: /*
1.6       misho     407:  * rpc_srv_blobUnmap() - Unmap blob memory region 
                    408:  *
1.2       misho     409:  * @blob = Mapped BLOB element
                    410:  * return: none
                    411:  */
                    412: inline void rpc_srv_blobUnmap(rpc_blob_t * __restrict blob);
                    413: /*
1.6       misho     414:  * rpc_srv_blobFree() - Free blob from disk & memory
                    415:  *
1.2       misho     416:  * @srv = RPC Server instance
                    417:  * @blob = Mapped BLOB element
                    418:  * return: -1 error or 0 ok
                    419:  */
                    420: inline int rpc_srv_blobFree(rpc_srv_t * __restrict srv, rpc_blob_t * __restrict blob);
                    421: 
                    422: /*
1.6       misho     423:  * rpc_srv_registerBLOB() - Register new BLOB to server
                    424:  *
1.2       misho     425:  * @srv = RPC Server instance
                    426:  * @len = BLOB length
                    427:  * return: NULL error or new registered BLOB
                    428:  */
                    429: rpc_blob_t *rpc_srv_registerBLOB(rpc_srv_t * __restrict srv, size_t len);
                    430: /*
1.6       misho     431:  * rpc_srv_unregisterBLOB() - Unregister BLOB from server
                    432:  *
1.2       misho     433:  * @srv = RPC Server instance
                    434:  * @var = BLOB Variable for unregister
                    435:  * return: -1 error, 0 not found call, 1 unregister ok
                    436:  */
                    437: int rpc_srv_unregisterBLOB(rpc_srv_t * __restrict srv, uint32_t var);
                    438: /*
1.6       misho     439:  * rpc_srv_getBLOB() - Get registered BLOB 
                    440:  *
1.2       misho     441:  * @srv = RPC Server instance
                    442:  * @var = hash for variable
                    443:  * return: NULL not found, !=NULL return blob var
                    444:  */
                    445: inline rpc_blob_t *rpc_srv_getBLOB(rpc_srv_t * __restrict srv, uint32_t var);
                    446: 
                    447: /*
1.6       misho     448:  * rpc_srv_sendBLOB() - Send mapped BLOB to client
                    449:  *
1.2       misho     450:  * @cli = Client instance
                    451:  * @blob = Mapped BLOB element
                    452:  * return: -1 error, 0 ok
                    453:  */
                    454: int rpc_srv_sendBLOB(rpc_cli_t * __restrict cli, rpc_blob_t * __restrict blob);
                    455: /*
1.6       misho     456:  * rpc_srv_recvBLOB() - Receive BLOB from client
                    457:  *
1.2       misho     458:  * @cli = Client instance
                    459:  * @blob = Mapped BLOB element
                    460:  * return: -1 error, 0 ok, >0 unreceived data from client, may be error?
                    461:  */
                    462: int rpc_srv_recvBLOB(rpc_cli_t * __restrict cli, rpc_blob_t * __restrict blob);
                    463: 
1.4       misho     464: /* CLIENT part of functions */
                    465: 
1.2       misho     466: /*
1.6       misho     467:  * rpc_cli_sendBLOB() - Send BLOB to server
                    468:  *
1.2       misho     469:  * @cli = Client instance
                    470:  * @var = BLOB variable
                    471:  * @data = BLOB data
                    472:  * return: -1 error, 0 ok, 1 remote error
                    473:  */
1.4       misho     474: int rpc_cli_sendBLOB(rpc_cli_t * __restrict cli, ait_val_t * __restrict var, void * __restrict data);
1.2       misho     475: /*
1.6       misho     476:  * rpc_cli_recvBLOB() - Receive BLOB from server
                    477:  *
1.2       misho     478:  * @cli = Client instance
                    479:  * @var = BLOB variable
1.9.2.1 ! misho     480:  * @data = BLOB data, must be io_free after use!
1.2       misho     481:  * return: -1 error, 0 ok, 1 remote error
                    482:  */
1.4       misho     483: int rpc_cli_recvBLOB(rpc_cli_t * __restrict cli, ait_val_t * __restrict var, void ** __restrict data);
1.2       misho     484: /*
1.6       misho     485:  * rpc_cli_delBLOB() - Delete BLOB from server
                    486:  *
1.2       misho     487:  * @cli = Client instance
                    488:  * @var = BLOB variable
                    489:  * return: -1 error, 0 ok, 1 remote error
                    490:  */
1.4       misho     491: int rpc_cli_delBLOB(rpc_cli_t * __restrict cli, ait_val_t * __restrict var);
1.2       misho     492: /*
1.6       misho     493:  * rpc_cli_getBLOB() - Receive BLOB from server and Delete after that.
                    494:  *
1.2       misho     495:  * @cli = Client instance
                    496:  * @var = BLOB variable
1.9.2.1 ! misho     497:  * @data = BLOB data, must be io_free after use!
1.2       misho     498:  * return: -1 error, 0 ok, >0 remote error
                    499:  */
1.6       misho     500: inline int rpc_cli_getBLOB(rpc_cli_t * __restrict cli, ait_val_t * __restrict var, 
                    501:                void ** __restrict data);
1.2       misho     502: 
                    503: 
1.1       misho     504: /* RPC Client side functions */
                    505: 
                    506: /*
1.6       misho     507:  * rpc_cli_openClient() - Connect to RPC Server
                    508:  *
1.1       misho     509:  * @ProgID = ProgramID for RPC session request
                    510:  * @ProcID = ProcessID for RPC session request
1.9       misho     511:  * @netBuf = Network buffer length (min:512 bytes), if =0 == BUFSIZ (also meaning max RPC packet)
1.1       misho     512:  * @csHost = Host name or IP address for bind server
                    513:  * @Port = Port for bind server, if Port == 0 default port is selected
                    514:  * return: NULL == error or !=NULL connection to RPC server established
                    515:  */
1.9       misho     516: rpc_cli_t *rpc_cli_openClient(unsigned int ProgID, unsigned char ProcID, int netBuf, 
1.6       misho     517:                const char *csHost, unsigned short Port);
1.1       misho     518: /*
1.6       misho     519:  * rpc_cli_closeClient() - Close connection to RPC server and free resources
                    520:  *
1.1       misho     521:  * @cli = RPC Client session
                    522:  * return: none
                    523:  */
1.9       misho     524: void rpc_cli_closeClient(rpc_cli_t ** __restrict cli);
1.1       misho     525: /*
1.6       misho     526:  * rpc_cli_execCall() - Execute RPC call
                    527:  *
1.1       misho     528:  * @cli = RPC Client session
1.7       misho     529:  * @noreply = We not want RPC reply
1.9       misho     530:  * @tag = Function tag for execution
                    531:  * @in_vars = IN RPC call array of rpc values, may be NULL
                    532:  * @out_vars = OUT returned array of rpc values, if !=NULL must be free after use with io_freeVars()
1.1       misho     533:  * return: -1 error or != -1 ok result
                    534:  */
1.9       misho     535: int rpc_cli_execCall(rpc_cli_t *cli, int noreply, unsigned short tag, 
1.4       misho     536:                array_t * __restrict in_vars, array_t ** __restrict out_vars);
1.9       misho     537: /*
                    538:  * rpc_cli_ping() - Ping RPC server
                    539:  *
                    540:  * @cli = connected client
                    541:  * return: -1 error or !=-1 ping seq id
                    542:  */
                    543: inline int rpc_cli_ping(rpc_cli_t *cli);
1.1       misho     544: 
                    545: 
1.2       misho     546: /*
1.6       misho     547:  * rpc_cli_openBLOBClient() - Connect to BLOB Server
                    548:  *
1.2       misho     549:  * @rpccli = RPC Client session
                    550:  * @Port = Port for bind server, if Port == 0 default port is selected
                    551:  * return: NULL == error or !=NULL connection to BLOB server established
                    552:  */
1.9       misho     553: rpc_cli_t *rpc_cli_openBLOBClient(rpc_cli_t * __restrict rpccli, unsigned short Port);
1.2       misho     554: /*
1.6       misho     555:  * rpc_cli_closeBLOBClient() - Close connection to BLOB server and free resources
                    556:  *
1.2       misho     557:  * @cli = BLOB Client session
                    558:  * return: none
                    559:  */
1.9       misho     560: void rpc_cli_closeBLOBClient(rpc_cli_t ** __restrict cli);
1.2       misho     561: 
                    562: 
1.1       misho     563: #endif

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