1: /*************************************************************************
2: * (C) 2010 AITNET ltd - Sofia/Bulgaria - <misho@aitbg.com>
3: * by Michael Pounov <misho@openbsd-bg.org>
4: *
5: * $Author: misho $
6: * $Id: aitrpc.h,v 1.1.1.1.2.23 2011/05/02 23:02:44 misho Exp $
7: *
8: *************************************************************************/
9: #ifndef __AITRPC_H
10: #define __AITRPC_H
11:
12:
13: #include <assert.h>
14: #include <stdlib.h>
15: #include <string.h>
16: #include <sys/types.h>
17: #include <sys/param.h>
18: #if !defined(__NetBSD__)
19: #include <sys/limits.h>
20: #endif
21: #include <sys/socket.h>
22:
23:
24: #define RPC_VERSION 1
25: #define RPC_DEFPORT 2611
26:
27:
28: /* RPC builtin registed calls */
29:
30: #define CALL_BLOBSHUTDOWN "rpcBLOBServerShutdown"
31: #define CALL_BLOBCLIENTS "rpcBLOBServerClients"
32: #define CALL_BLOBVARS "rpcBLOBServerVars"
33: #define CALL_BLOBSTATE "rpcBLOBServerState"
34:
35: #define CALL_SRVSHUTDOWN "rpcServerShutdown"
36: #define CALL_SRVCLIENTS "rpcServerClients"
37: #define CALL_SRVCALLS "rpcServerCalls"
38: #define CALL_SRVSESSIONS "rpcServerSessions"
39:
40:
41: /* RPC types */
42:
43: typedef enum {
44: empty, // empty -> variable is not set
45: buffer, string, blob, // buffer -> uint8_t*; string -> int8_t*; blob -> void*(+socket);
46: size, offset, datetime, // size -> size_t; offset -> off_t; datetime -> time_t;
47: real, bigreal, // real -> float; bigreal -> double;
48: u8, u16, u32, u64, // unsigned integers ...
49: i8, i16, i32, i64 // integers ...
50: } rpc_type_t;
51:
52: typedef enum {
53: disable, enable, // for blob.state
54: ok, error, // for blob reply
55: get, set, unset // for blob request
56: } cmd_type_t;
57:
58: /* RPC value */
59:
60: typedef struct {
61: rpc_type_t val_type;
62: size_t val_len;
63: union {
64: uint8_t *buffer;
65: int8_t *string;
66: uint32_t blob;
67: size_t size;
68: off_t offset;
69: time_t datetime;
70: float real;
71: double bigreal;
72: uint8_t u8;
73: uint16_t u16;
74: uint32_t u32;
75: uint64_t u64;
76: int8_t i8;
77: int16_t i16;
78: int32_t i32;
79: int64_t i64;
80: } val;
81: } __packed rpc_val_t;
82:
83: #define RPC_TYPE_VAL(vl) ((vl)->val_type)
84: #define RPC_LEN_VAL(vl) ((vl)->val_len)
85: #define RPC_BLOB_CHUNKS(vl, n) ((vl)->val_len / (n) + ((vl)->val_len % (n)) ? 1 : 0)
86: #define RPC_EMPTY_VAL(vl) ((vl)->val_type == empty)
87:
88: #define RPC_GET_BUF(vl) (assert((vl)->val_type == buffer), (vl)->val.buffer)
89: #define RPC_GET_STR(vl) (assert((vl)->val_type == string), (vl)->val.string)
90: #define RPC_GET_BLOB(vl) (assert((vl)->val_type == blob), (vl)->val.blob)
91: #define RPC_GET_SIZE(vl) (assert((vl)->val_type == size), (vl)->val.size)
92: #define RPC_GET_OFF(vl) (assert((vl)->val_type == offset), (vl)->val.offset)
93: #define RPC_GET_TIME(vl) (assert((vl)->val_type == datetime), (vl)->val.datetime)
94: #define RPC_GET_REAL(vl) (assert((vl)->val_type == real), (vl)->val.real)
95: #define RPC_GET_BREAL(vl) (assert((vl)->val_type == bigreal), (vl)->val.bigreal)
96: #define RPC_GET_U8(vl) (assert((vl)->val_type == u8), (vl)->val.u8)
97: #define RPC_GET_U16(vl) (assert((vl)->val_type == u16), (vl)->val.u16)
98: #define RPC_GET_U32(vl) (assert((vl)->val_type == u32), (vl)->val.u32)
99: #define RPC_GET_U64(vl) (assert((vl)->val_type == u64), (vl)->val.u64)
100: #define RPC_GET_I8(vl) (assert((vl)->val_type == i8), (vl)->val.i8)
101: #define RPC_GET_I16(vl) (assert((vl)->val_type == i16), (vl)->val.i16)
102: #define RPC_GET_I32(vl) (assert((vl)->val_type == i32), (vl)->val.i32)
103: #define RPC_GET_I64(vl) (assert((vl)->val_type == i64), (vl)->val.i64)
104:
105: #define RPC_SET_BUF(vl, v, l) do { rpc_val_t *val = (vl); assert(val); val->val.buffer = malloc(l); \
106: if (val->val.buffer) { \
107: val->val_type = buffer; val->val_len = l; \
108: memcpy(val->val.buffer, v, l); \
109: } } while (0)
110: #define RPC_SET_STR(vl, v) do { rpc_val_t *val = (vl); assert(val); val->val.string = (int8_t*) strdup(v); \
111: if (val->val.string) { \
112: val->val_type = string; val->val_len = strlen(v) + 1; \
113: } } while (0)
114: #define RPC_SET_BLOB(vl, v, l) do { rpc_val_t *val = (vl); assert(val); val->val_type = blob; \
115: val->val.blob = v; val->val_len = l; } while (0)
116: #define RPC_SET_BLOB2(vl, b) do { rpc_val_t *val = (vl); assert(val); assert(b); val->val_type = blob; \
117: val->val.blob = b->blob_var; val->val_len = b->blob_len; } while (0)
118: #define RPC_SET_SIZE(vl, v) do { rpc_val_t *val = (vl); assert(val); val->val_type = size; val->val.size = v; \
119: val->val_len = sizeof(size_t); } while (0)
120: #define RPC_SET_OFF(vl, v) do { rpc_val_t *val = (vl); assert(val); val->val_type = offset; val->val.offset = v; \
121: val->val_len = sizeof(off_t); } while (0)
122: #define RPC_SET_TIME(vl, v) do { rpc_val_t *val = (vl); assert(val); val->val_type = datetime; val->val.datetime = v; \
123: val->val_len = sizeof(time_t); } while (0)
124: #define RPC_SET_REAL(vl, v) do { rpc_val_t *val = (vl); assert(val); val->val_type = real; val->val.real = v; \
125: val->val_len = sizeof(float); } while (0)
126: #define RPC_SET_BREAL(vl, v) do { rpc_val_t *val = (vl); assert(val); val->val_type = bigreal; val->val.bigreal = v; \
127: val->val_len = sizeof(double); } while (0)
128: #define RPC_SET_U8(vl, v) do { rpc_val_t *val = (vl); assert(val); val->val_type = u8; val->val.u8 = v; \
129: val->val_len = sizeof(uint8_t); } while (0)
130: #define RPC_SET_U16(vl, v) do { rpc_val_t *val = (vl); assert(val); val->val_type = u16; val->val.u16 = v; \
131: val->val_len = sizeof(uint16_t); } while (0)
132: #define RPC_SET_U32(vl, v) do { rpc_val_t *val = (vl); assert(val); val->val_type = u32; val->val.u32 = v; \
133: val->val_len = sizeof(uint32_t); } while (0)
134: #define RPC_SET_U64(vl, v) do { rpc_val_t *val = (vl); assert(val); val->val_type = u64; val->val.u64 = v; \
135: val->val_len = sizeof(uint64_t); } while (0)
136: #define RPC_SET_I8(vl, v) do { rpc_val_t *val = (vl); assert(val); val->val_type = i8; val->val.i8 = v; \
137: val->val_len = sizeof(int8_t); } while (0)
138: #define RPC_SET_I16(vl, v) do { rpc_val_t *val = (vl); assert(val); val->val_type = i16; val->val.i16 = v; \
139: val->val_len = sizeof(int16_t); } while (0)
140: #define RPC_SET_I32(vl, v) do { rpc_val_t *val = (vl); assert(val); val->val_type = i32; val->val.i32 = v; \
141: val->val_len = sizeof(int32_t); } while (0)
142: #define RPC_SET_I64(vl, v) do { rpc_val_t *val = (vl); assert(val); val->val_type = i64; val->val.i64 = v; \
143: val->val_len = sizeof(int64_t); } while (0)
144:
145: #define RPC_FREE_VAL(vl) do { rpc_val_t *val = (vl); assert(val); \
146: if (val->val_type == buffer && val->val.buffer) { \
147: free(val->val.buffer); \
148: val->val.buffer = NULL; \
149: } \
150: if (val->val_type == string && val->val.string) { \
151: free(val->val.string); \
152: val->val.string = NULL; \
153: } \
154: val->val_type = val->val_len = 0; \
155: } while (0)
156:
157:
158: #define RPC_CALLBACK_CHECK_INPUT(x) do { \
159: if (!x) { \
160: rpc_SetErr(22, "Error:: invalid callback parameters ...\n"); \
161: return -1; \
162: } \
163: } while (0)
164: #define RPC_CALLBACK_CHK_ARGS(f, n) do { \
165: RPC_CALLBACK_CHECK_INPUT(f); \
166: if (f && f->func_args != n) { \
167: rpc_SetErr(22, "Error:: different number of arguments!\n"); \
168: return -1; \
169: } \
170: } while (0)
171:
172:
173: /* RPC session identification */
174:
175: typedef struct {
176: uint8_t sess_version;
177: uint32_t sess_program;
178: uint32_t sess_process;
179: } __packed rpc_sess_t;
180:
181:
182: /* Server managment RPC functions ... */
183:
184: // RPC function registration element!
185: typedef struct tagRPCFunc {
186: uint16_t func_tag;
187: uint32_t func_hash;
188: int8_t func_file[MAXPATHLEN];
189: int8_t func_name[UCHAR_MAX + 1];
190:
191: int8_t func_args;
192: rpc_val_t *func_vals;
193:
194: void *func_parent;
195: struct tagRPCFunc *func_next;
196: } rpc_func_t;
197:
198:
199: /* Network RPC packet - Client request */
200:
201: struct tagRPCCall {
202: rpc_sess_t call_session;
203: uint16_t call_tag;
204: uint32_t call_hash;
205: uint8_t call_argc;
206: } __packed;
207:
208: /* Network RPC packet - Server response */
209:
210: struct tagRPCRet {
211: rpc_sess_t ret_session;
212: uint16_t ret_tag;
213: uint32_t ret_hash;
214: int32_t ret_retcode;
215: int32_t ret_errno;
216: uint8_t ret_argc;
217: } __packed;
218:
219: /* Network BLOB packet - Header */
220:
221: struct tagBLOBHdr {
222: rpc_sess_t hdr_session;
223: uint8_t hdr_cmd;
224: uint32_t hdr_var;
225: uint32_t hdr_len;
226: uint32_t hdr_ret;
227: } __packed;
228:
229: /* Network RPC client & server elements */
230:
231: typedef struct {
232: struct sockaddr cli_sa; // host info
233: int cli_sock; // socket
234: pthread_t cli_tid; // TID of thread
235:
236: void *cli_parent; // pointer to parent rpc_srv_t for server or to rpc_sess_t for client
237: } rpc_cli_t;
238:
239:
240: // BLOB registration element!
241: typedef struct tagBLOB {
242: uint32_t blob_var;
243:
244: size_t blob_len; // size of allocated BLOB data
245: void *blob_data; // BLOB data
246:
247: struct tagBLOB *blob_next;
248: } rpc_blob_t;
249:
250: typedef struct {
251: rpc_sess_t srv_session; // RPC session registration info
252: int srv_numcli; // maximum concurent client connections
253:
254: rpc_cli_t srv_server; // RPC server socket
255: rpc_cli_t *srv_clients; // connected rpc client sockets
256:
257: rpc_func_t *srv_funcs; // registered functions list
258:
259: pthread_mutex_t srv_mtx;
260:
261: struct {
262: int state; // BLOB server state: ==0 disable | !=0 enable
263: char dir[UCHAR_MAX + 1];
264:
265: rpc_cli_t server; // BLOB server socket
266: rpc_cli_t *clients; // connected blob client sockets
267:
268: rpc_blob_t *blobs; // registered blob variables list
269:
270: pthread_mutex_t mtx;
271: } srv_blob;
272: } rpc_srv_t;
273:
274:
275: /*
276: * (*rpc_callback_t)() Callback type definition for RPC call in server process
277: * @arg1 = current execution RPC call function
278: * @arg2 = number of items in input array from call request
279: * @arg3 = input array with values from RPC call execution request
280: * return: -1 error or >-1 success execution
281: */
282: typedef int (*rpc_callback_t)(rpc_func_t *, int, rpc_val_t *);
283:
284:
285: // -----------------------------------------------------------------------
286:
287: /* Error support functions */
288:
289: // cli_GetErrno() Get error code of last operation
290: inline int cli_GetErrno();
291: // cli_GetError() Get error text of last operation
292: inline const char *cli_GetError();
293:
294:
295: /* RPC Server side functions */
296:
297: /*
298: * rpc_srv_initServer() Init & create RPC Server
299: * @regProgID = ProgramID for authentication & recognition
300: * @regProcID = ProcessID for authentication & recognition
301: * @concurentClients = Concurent clients at same time to this server
302: * @family = Family socket type, AF_INET or AF_INET6
303: * @csHost = Host name or IP address for bind server, if NULL any address
304: * @Port = Port for bind server, if Port == 0 default port is selected
305: * return: NULL == error or !=NULL bind and created RPC server instance
306: */
307: rpc_srv_t *rpc_srv_initServer(u_int regProgID, u_int regProcID, int concurentClients,
308: u_short family, const char *csHost, u_short Port);
309: /*
310: * rpc_srv_endServer() Destroy RPC server, close all opened sockets and free resources
311: * @srv = RPC Server instance
312: * return: none
313: */
314: void rpc_srv_endServer(rpc_srv_t * __restrict srv);
315: /*
316: * rpc_srv_execServer() Execute Main server loop and wait for clients requests
317: * @srv = RPC Server instance
318: * return: -1 error or 0 ok, infinite loop ...
319: */
320: int rpc_srv_execServer(rpc_srv_t * __restrict srv);
321:
322: /*
323: * rpc_srv_initBLOBServer() Init & create BLOB Server
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: */
328: int rpc_srv_initBLOBServer(rpc_srv_t * __restrict srv, u_short Port, const char *diskDir);
329: /*
330: * rpc_srv_endBLOBServer() Destroy BLOB server, close all opened sockets and free resources
331: * @srv = RPC Server instance
332: * return: none
333: */
334: void rpc_srv_endBLOBServer(rpc_srv_t * __restrict srv);
335: /*
336: * rpc_srv_execBLOBServer() Execute Main BLOB server loop and wait for clients requests
337: * @srv = RPC Server instance
338: * return: -1 error or 0 ok, infinite loop ...
339: */
340: int rpc_srv_execBLOBServer(rpc_srv_t * __restrict srv);
341:
342: /*
343: * rpc_srv_registerCall() Register call to RPC server
344: * @srv = RPC Server instance
345: * @csModule = Module name, if NULL self binary
346: * @csFunc = Function name
347: * @args = Number of return function arguments, use for restriction case!
348: * return: -1 error or 0 register ok
349: */
350: int rpc_srv_registerCall(rpc_srv_t * __restrict srv, const char *csModule, const char *csFunc,
351: unsigned char args);
352: /*
353: * rpc_srv_unregisterCall() Unregister call from RPC server
354: * @srv = RPC Server instance
355: * @csModule = Module name, if NULL self binary
356: * @csFunc = Function name
357: * return: -1 error, 0 not found call, 1 unregister ok
358: */
359: int rpc_srv_unregisterCall(rpc_srv_t * __restrict srv, const char *csModule, const char *csFunc);
360: /*
361: * rpc_srv_getFunc() Get registered call from RPC server by Name
362: * @srv = RPC Server instance
363: * @csModule = Module name, if NULL self binary
364: * @csFunc = Function name
365: * return: NULL not found call, !=NULL return call
366: */
367: rpc_func_t *rpc_srv_getFunc(rpc_srv_t * __restrict srv, const char *csModule, const char *csFunc);
368: /*
369: * rpc_srv_getCall() Get registered call from RPC server
370: * @srv = RPC Server instance
371: * @tag = tag for function
372: * @hash = hash for function
373: * return: NULL not found call, !=NULL return call
374: */
375: inline rpc_func_t *rpc_srv_getCall(rpc_srv_t * __restrict srv, uint16_t tag, uint32_t hash);
376: /*
377: * rpc_srv_execCall() Execute registered call from RPC server
378: * @call = Register RPC call
379: * @rpc = IN RPC call structure
380: * @args = IN RPC call array of rpc values
381: * return: -1 error, !=-1 ok
382: */
383: int rpc_srv_execCall(rpc_func_t * __restrict call, struct tagRPCCall * __restrict rpc,
384: rpc_val_t * __restrict args);
385:
386:
387: /*
388: * rpc_srv_retValsCall() Declare return variables for RPC call and zeroed values
389: (for safe handling return values, use this!)
390: * @call = RPC function call
391: * @return_vals = Number of return variables
392: * return: NULL error, !=NULL array with return values for RPC call with return_vals items
393: */
394: inline rpc_val_t *rpc_srv_retValsCall(rpc_func_t * __restrict call, int return_vals);
395: /*
396: * rpc_srv_declValsCall() Declare return variables for RPC call,
397: if already allocated memory for RPC call return values
398: function reallocate used space with return_vals count elements
399: * @call = RPC function call
400: * @return_vals = Number of return variables
401: * return: -1 error, !=-1 ok
402: */
403: inline int rpc_srv_declValsCall(rpc_func_t * __restrict call, int return_vals);
404: /*
405: * rpc_srv_freeValsCall() Free return variables for RPC call
406: * @call = RPC function call
407: * return: none
408: */
409: inline void rpc_srv_freeValsCall(rpc_func_t * __restrict call);
410: /*
411: * rpc_srv_copyValsCall() Copy return variables for RPC call to new variable
412: * @call = RPC function call
413: * @newvals = New allocated variables array, must be free after use
414: * return: -1 error, !=-1 Returned number of copied RPC variables
415: */
416: inline int rpc_srv_copyValsCall(rpc_func_t * __restrict call, rpc_val_t ** __restrict newvals);
417: /*
418: * rpc_srv_zeroValsCall() Clean values from return variables of RPC call
419: * @call = RPC function call
420: * return: -1 error, !=-1 Returned number of cleaned RPC variables
421: */
422: inline int rpc_srv_zeroValsCall(rpc_func_t * __restrict call);
423: /*
424: * rpc_srv_getValsCall() Get return variables for RPC call
425: * @call = RPC function call
426: * @vals = Returned variables, may be NULL
427: * return: -1 error, !=-1 Number of returned variables
428: */
429: inline int rpc_srv_getValsCall(rpc_func_t * __restrict call, rpc_val_t ** __restrict vals);
430:
431:
432: /*
433: * rpc_srv_blobCreate() Create map blob to memory region and return object
434: * @srv = RPC Server instance
435: * @len = BLOB length object
436: * return: NULL error or !=NULL allocated BLOB object
437: */
438: inline rpc_blob_t *rpc_srv_blobCreate(rpc_srv_t * __restrict srv, int len);
439: /*
440: * rpc_srv_blobMap() Map blob to memory region
441: * @srv = RPC Server instance
442: * @blob = Map to this BLOB element
443: * return: -1 error or 0 ok
444: */
445: inline int rpc_srv_blobMap(rpc_srv_t * __restrict srv, rpc_blob_t * __restrict blob);
446: /*
447: * rpc_srv_blobUnmap() Unmap blob memory region
448: * @blob = Mapped BLOB element
449: * return: none
450: */
451: inline void rpc_srv_blobUnmap(rpc_blob_t * __restrict blob);
452: /*
453: * rpc_srv_blobFree() Free blob from disk & memory
454: * @srv = RPC Server instance
455: * @blob = Mapped BLOB element
456: * return: -1 error or 0 ok
457: */
458: inline int rpc_srv_blobFree(rpc_srv_t * __restrict srv, rpc_blob_t * __restrict blob);
459:
460: /*
461: * rpc_srv_registerBLOB() Register new BLOB to server
462: * @srv = RPC Server instance
463: * @len = BLOB length
464: * return: NULL error or new registered BLOB
465: */
466: rpc_blob_t *rpc_srv_registerBLOB(rpc_srv_t * __restrict srv, size_t len);
467: /*
468: * rpc_srv_unregisterBLOB() Unregister BLOB from server
469: * @srv = RPC Server instance
470: * @var = BLOB Variable for unregister
471: * return: -1 error, 0 not found call, 1 unregister ok
472: */
473: int rpc_srv_unregisterBLOB(rpc_srv_t * __restrict srv, uint32_t var);
474: /*
475: * rpc_srv_getBLOB() Get registered BLOB
476: * @srv = RPC Server instance
477: * @var = hash for variable
478: * return: NULL not found, !=NULL return blob var
479: */
480: inline rpc_blob_t *rpc_srv_getBLOB(rpc_srv_t * __restrict srv, uint32_t var);
481:
482: /*
483: * rpc_srv_sendBLOB() Send mapped BLOB to client
484: * @cli = Client instance
485: * @blob = Mapped BLOB element
486: * return: -1 error, 0 ok
487: */
488: int rpc_srv_sendBLOB(rpc_cli_t * __restrict cli, rpc_blob_t * __restrict blob);
489: /*
490: * rpc_srv_recvBLOB() Receive BLOB from client
491: * @cli = Client instance
492: * @blob = Mapped BLOB element
493: * return: -1 error, 0 ok, >0 unreceived data from client, may be error?
494: */
495: int rpc_srv_recvBLOB(rpc_cli_t * __restrict cli, rpc_blob_t * __restrict blob);
496:
497: /*
498: * rpc_cli_sendBLOB() Send BLOB to server
499: * @cli = Client instance
500: * @var = BLOB variable
501: * @data = BLOB data
502: * return: -1 error, 0 ok, 1 remote error
503: */
504: int rpc_cli_sendBLOB(rpc_cli_t * __restrict cli, rpc_val_t * __restrict var, void * __restrict data);
505: /*
506: * rpc_cli_recvBLOB() Receive BLOB from server
507: * @cli = Client instance
508: * @var = BLOB variable
509: * @data = BLOB data, must be free after use!
510: * return: -1 error, 0 ok, 1 remote error
511: */
512: int rpc_cli_recvBLOB(rpc_cli_t * __restrict cli, rpc_val_t * __restrict var, void ** data);
513: /*
514: * rpc_cli_delBLOB() Delete BLOB from server
515: * @cli = Client instance
516: * @var = BLOB variable
517: * return: -1 error, 0 ok, 1 remote error
518: */
519: int rpc_cli_delBLOB(rpc_cli_t * __restrict cli, rpc_val_t * __restrict var);
520: /*
521: * rpc_cli_getBLOB() Receive BLOB from server and Delete after that.
522: * @cli = Client instance
523: * @var = BLOB variable
524: * @data = BLOB data, must be free after use!
525: * return: -1 error, 0 ok, >0 remote error
526: */
527: inline int rpc_cli_getBLOB(rpc_cli_t * __restrict cli, rpc_val_t * __restrict var, void ** data);
528:
529:
530:
531: /* RPC Client side functions */
532:
533: /*
534: * rpc_cli_openClient() Connect to RPC Server
535: * @ProgID = ProgramID for RPC session request
536: * @ProcID = ProcessID for RPC session request
537: * @family = Family socket type, AF_INET or AF_INET6
538: * @csHost = Host name or IP address for bind server
539: * @Port = Port for bind server, if Port == 0 default port is selected
540: * return: NULL == error or !=NULL connection to RPC server established
541: */
542: rpc_cli_t *rpc_cli_openClient(u_int ProgID, u_int ProcID, u_short family,
543: const char *csHost, u_short Port);
544: /*
545: * rpc_cli_closeClient() Close connection to RPC server and free resources
546: * @cli = RPC Client session
547: * return: none
548: */
549: void rpc_cli_closeClient(rpc_cli_t * __restrict cli);
550: /*
551: * rpc_cli_execCall() Execute RPC call
552: * @cli = RPC Client session
553: * @csModule = Module name, if NULL self binary
554: * @csFunc = Function name for execute
555: * @in_argc = IN count of arguments
556: * @in_vals = IN RPC call array of rpc values
557: * @out_argc = OUT returned count of arguments
558: * @out_vals = OUT returned array of rpc values, must be free after use (see rpc_cli_freeVals())
559: * return: -1 error or != -1 ok result
560: */
561: int rpc_cli_execCall(rpc_cli_t *cli, const char *csModule, const char *csFunc, int in_argc,
562: rpc_val_t * __restrict in_vals, int *out_argc, rpc_val_t ** __restrict out_vals);
563: /*
564: * rpc_cli_freeVals() Free rpc_val_t array returned from RPC call
565: * @args = Number of arguments in array
566: * @vals = Value elements
567: * return: none
568: */
569: inline void rpc_cli_freeVals(int args, rpc_val_t *vals);
570:
571:
572: /*
573: * rpc_cli_openBLOBClient() Connect to BLOB Server
574: * @rpccli = RPC Client session
575: * @Port = Port for bind server, if Port == 0 default port is selected
576: * return: NULL == error or !=NULL connection to BLOB server established
577: */
578: rpc_cli_t *rpc_cli_openBLOBClient(rpc_cli_t * __restrict rpccli, u_short Port);
579: /*
580: * rpc_cli_closeBLOBClient() Close connection to BLOB server and free resources
581: * @cli = BLOB Client session
582: * return: none
583: */
584: void rpc_cli_closeBLOBClient(rpc_cli_t * __restrict cli);
585:
586:
587: #endif
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