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Diff for /libaitrpc/inc/aitrpc.h between versions 1.8.2.18 and 1.13.2.2

version 1.8.2.18, 2012/05/17 09:32:51 version 1.13.2.2, 2013/04/02 15:32:03
Line 12  terms: Line 12  terms:
 All of the documentation and software included in the ELWIX and AITNET  All of the documentation and software included in the ELWIX and AITNET
 Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org>  Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org>
   
Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
         by Michael Pounov <misho@elwix.org>.  All rights reserved.          by Michael Pounov <misho@elwix.org>.  All rights reserved.
   
 Redistribution and use in source and binary forms, with or without  Redistribution and use in source and binary forms, with or without
Line 58  SUCH DAMAGE. Line 58  SUCH DAMAGE.
 #endif  #endif
 #include <sys/socket.h>  #include <sys/socket.h>
 #include <sys/queue.h>  #include <sys/queue.h>
#include <aitio.h>#include <elwix.h>
 #include <aitsched.h>  #include <aitsched.h>
   
   
#define RPC_VERSION             4#define RPC_VERSION             6
 #define RPC_DEFPORT             2611  #define RPC_DEFPORT             2611
   
 /* RPC call request flags */  /* RPC call request flags */
Line 91  SUCH DAMAGE. Line 91  SUCH DAMAGE.
 typedef enum {  typedef enum {
         ok, error, no,                          /* for blob reply */          ok, error, no,                          /* for blob reply */
         get, set, unset                         /* for blob request */          get, set, unset                         /* for blob request */
} cmd_type_t;} blob_cmd_type_t;
   
   
#define RPC_CALLBACK_CHECK_INPUT(_f)       do { \#define RPC_CALLBACK_CHECK_INPUT(x)       do { \
                                                assert((_f)); \                                                assert((x)); \
                                                if (!(_f)) { \                                                if (!(x)) { \
                                                         rpc_SetErr(EINVAL, \                                                          rpc_SetErr(EINVAL, \
                                                                         "Invalid callback parameters ..."); \                                                                          "Invalid callback parameters ..."); \
                                                         return -1; \                                                          return -1; \
                                                 } \                                                  } \
                                         } while (0)                                          } while (0)
 #define RPC_CALLBACK_CHK_ARGS(_f, _n)   do { \  
                                                 RPC_CALLBACK_CHECK_INPUT((_f)); \  
                                                 if ((_f) && io_arraySize((_f)->func_vars) < _n) { \  
                                                         rpc_SetErr(EINVAL, \  
                                                                         "Not enough number of arguments!"); \  
                                                         return -1; \  
                                                 } \  
                                         } while (0)  
   
   
 /* RPC session identification */  /* RPC session identification */
   
 typedef struct {  typedef struct {
        uint8_t             sess_version;#if BYTE_ORDER == LITTLE_ENDIAN
        uint32_t      sess_program;        uint16_t    sess_instance:8;
        uint8_t             sess_process;        uint16_t        sess_version:8;
} __packed rpc_sess_t;          /* size == 6 bytes */#endif
 #if BYTE_ORDER == BIG_ENDIAN
         uint16_t      sess_version:8;
         uint16_t        sess_instance:8;
 #endif
 } __packed rpc_sess_t;  /* size == 2 bytes */
   
   
 /* Server managment RPC functions ... */  /* Server managment RPC functions ... */
Line 145  struct tagRPCCall { Line 142  struct tagRPCCall {
         uint16_t        call_tag;          uint16_t        call_tag;
         uint16_t        call_argc;          uint16_t        call_argc;
         ait_val_t       call_argv[0];          ait_val_t       call_argv[0];
} __packed;                     /* size == 24 bytes */} __packed;                     /* size == 20 bytes */
 #define RPC_CHK_NOREPLY(x)      ((x)->call_req.flags & RPC_NOREPLY)
   
 /* Network BLOB packet - Header */  /* Network BLOB packet - Header */
   
Line 155  struct tagBLOBHdr { Line 153  struct tagBLOBHdr {
         uint32_t        hdr_var;          uint32_t        hdr_var;
         uint32_t        hdr_len;          uint32_t        hdr_len;
         uint32_t        hdr_ret;          uint32_t        hdr_ret;
         uint16_t        hdr_crc;  
         uint8_t         hdr_pad;          uint8_t         hdr_pad;
} __packed;                     /* size == 22 bytes */} __packed;                     /* size == 16 bytes */
   
 /* Network RPC client & server elements */  /* Network RPC client & server elements */
   
Line 165  struct tagBLOBHdr { Line 162  struct tagBLOBHdr {
 typedef struct tagRPCFunc {  typedef struct tagRPCFunc {
         ait_val_t               func_name;          ait_val_t               func_name;
   
         array_t                 *func_vars;  
   
         void                    *func_parent;          void                    *func_parent;
        TAILQ_ENTRY(tagRPCFunc)      func_node;
         SLIST_ENTRY(tagRPCFunc) func_next;
         AVL_ENTRY(tagRPCFunc)      func_node;
 } rpc_func_t;  } rpc_func_t;
 #define RPC_FUNC_RETVARS(x)     ((x)->func_vars)  
 #define RPC_FUNC_SERVER(x)      ((rpc_srv_t*) (x)->func_parent)  #define RPC_FUNC_SERVER(x)      ((rpc_srv_t*) (x)->func_parent)
   
   /* Tree root node */
   typedef struct tagRPCFuncs {
           pthread_mutex_t         mtx;
   
           struct tagRPCFunc       *slh_first;
           struct tagRPCFunc       *avlh_root;
   } rpc_funcs_t;
   #define RPC_FUNCS_LOCK(x)       pthread_mutex_lock(&(x)->mtx)
   #define RPC_FUNCS_UNLOCK(x)     pthread_mutex_unlock(&(x)->mtx)
   #define RPC_FUNCS_ISEMPTY(x)    AVL_EMPTY((x))
   
   
 /* BLOB register element */  /* BLOB register element */
 typedef struct tagBLOB {  typedef struct tagBLOB {
         uint32_t                blob_var;       /* BLOB id */          uint32_t                blob_var;       /* BLOB id */
Line 188  typedef struct tagBLOB { Line 195  typedef struct tagBLOB {
 typedef struct {  typedef struct {
         int             cli_id;         /* slot id */          int             cli_id;         /* slot id */
         int             cli_sock;       /* socket fd */          int             cli_sock;       /* socket fd */
        io_sockaddr_t      cli_sa;         /* host address */        sockaddr_t      cli_sa;         /* host address */
         ait_val_t       cli_buf;        /* network buffer */          ait_val_t       cli_buf;        /* network buffer */
   
           array_t         *cli_vars;      /* function return variables */
   
         void            *cli_parent;    /* pointer to parent rpc_srv_t for server or to rpc_sess_t for client */          void            *cli_parent;    /* pointer to parent rpc_srv_t for server or to rpc_sess_t for client */
 } rpc_cli_t;  } rpc_cli_t;
   #define RPC_RETVARS(x)          ((x)->cli_vars)
   #define RPC_SRV_SERVER(x)       ((rpc_srv_t*) (x)->cli_parent)
   #define RPC_CLI_SESSION(x)      ((rpc_sess_t*) (x)->cli_parent)
   
 typedef struct {  typedef struct {
         rpc_sess_t                      srv_session;    /* RPC session registration info */          rpc_sess_t                      srv_session;    /* RPC session registration info */
         int                             srv_netbuf;     /* size of network buffer */          int                             srv_netbuf;     /* size of network buffer */
           int                             srv_proto;      /* Server protocol */
   
         pthread_t                       srv_tid;        /* RPC exec pthread */          pthread_t                       srv_tid;        /* RPC exec pthread */
         sched_root_task_t               *srv_root;      /* RPC server scheduler */          sched_root_task_t               *srv_root;      /* RPC server scheduler */
Line 205  typedef struct { Line 218  typedef struct {
         rpc_cli_t                       srv_server;     /* RPC server socket */          rpc_cli_t                       srv_server;     /* RPC server socket */
         array_t                         *srv_clients;   /* connected rpc client sockets */          array_t                         *srv_clients;   /* connected rpc client sockets */
   
        TAILQ_HEAD(, tagRPCFunc)        srv_funcs;      /* RPC functions list */        rpc_funcs_t                     srv_funcs;        /* RPC functions */
   
         struct {          struct {
                 pthread_t                       tid;            /* BLOB exec pthread */                  pthread_t                       tid;            /* BLOB exec pthread */
Line 225  typedef struct { Line 238  typedef struct {
 /*   /* 
  * (*rpc_callback_t)() - Callback type definition for RPC call in server process   * (*rpc_callback_t)() - Callback type definition for RPC call in server process
  *   *
 * @arg1 = current execution RPC call function * @arg1 = RPC client
  * @arg2 = RPC packet header   * @arg2 = RPC packet header
  * @arg3 = input array with values from RPC call execution request   * @arg3 = input array with values from RPC call execution request
  * return: -1 error or >-1 success execution   * return: -1 error or >-1 success execution
  */   */
typedef int (*rpc_callback_t)(rpc_func_t *, struct tagRPCCall *, array_t *);typedef int (*rpc_callback_t)(rpc_cli_t *, struct tagRPCCall *, array_t *);
   
   
// -----------------------------------------------------------------------/* ----------------------------------------------------------------------- */
   
 /* Error support functions */  /* Error support functions */
   
Line 287  int rpc_register_blobServices(rpc_srv_t * __restrict s Line 300  int rpc_register_blobServices(rpc_srv_t * __restrict s
 /*  /*
  * rpc_srv_initServer() - Init & create RPC Server   * rpc_srv_initServer() - Init & create RPC Server
  *   *
 * @regProgID = ProgramID for authentication & recognition * @InstID = Instance for authentication & recognition
 * @regProcID = ProcessID for authentication & recognition 
  * @concurentClients = Concurent clients at same time to this server   * @concurentClients = Concurent clients at same time to this server
 * @netBuf = Network buffer length, if =0 == BUFSIZ (also meaning max RPC packet) * @netBuf = Network buffer length (min:512 bytes), if =0 == BUFSIZ (also meaning max RPC packet)
  * @csHost = Host name or address for bind server, if NULL any address   * @csHost = Host name or address for bind server, if NULL any address
  * @Port = Port for bind server, if Port == 0 default port is selected   * @Port = Port for bind server, if Port == 0 default port is selected
    * @proto = Protocol, if == 0 choose SOCK_STREAM
  * return: NULL == error or !=NULL bind and created RPC server instance   * return: NULL == error or !=NULL bind and created RPC server instance
  */   */
rpc_srv_t *rpc_srv_initServer(unsigned int regProgID, unsigned char regProcID, rpc_srv_t *rpc_srv_initServer(unsigned char InstID, int concurentClients, int netBuf, 
                int concurentClients, int netBuf,                 const char *csHost, unsigned short Port, int proto);
                const char *csHost, unsigned short Port); 
 /*  /*
  * rpc_srv_endServer() - Destroy RPC server, close all opened sockets and free resources   * rpc_srv_endServer() - Destroy RPC server, close all opened sockets and free resources
  *   *
  * @psrv = RPC Server instance   * @psrv = RPC Server instance
  * return: none   * return: none
  */   */
void rpc_srv_endServer(rpc_srv_t ** __restrict psrv);inline void rpc_srv_endServer(rpc_srv_t ** __restrict psrv);
 /*  /*
  * rpc_srv_loopServer() - Execute Main server loop and wait for clients requests   * rpc_srv_loopServer() - Execute Main server loop and wait for clients requests
  *   *
Line 330  int rpc_srv_loopServer(rpc_srv_t * __restrict srv); Line 342  int rpc_srv_loopServer(rpc_srv_t * __restrict srv);
  * @diskDir = Disk place for BLOB file objects   * @diskDir = Disk place for BLOB file objects
  * return: -1 == error or 0 bind and created BLOB server instance   * return: -1 == error or 0 bind and created BLOB server instance
  */   */
int rpc_srv_initBLOBServer(rpc_srv_t * __restrict srv, u_short Port, const char *diskDir);int rpc_srv_initBLOBServer(rpc_srv_t * __restrict srv, unsigned short Port, const char *diskDir);
 /*  /*
  * rpc_srv_endBLOBServer() - Destroy BLOB server, close all opened sockets and free resources   * rpc_srv_endBLOBServer() - Destroy BLOB server, close all opened sockets and free resources
  *   *
  * @srv = RPC Server instance   * @srv = RPC Server instance
  * return: none   * return: none
  */   */
void rpc_srv_endBLOBServer(rpc_srv_t * __restrict srv);inline void rpc_srv_endBLOBServer(rpc_srv_t * __restrict srv);
 /*  /*
  * rpc_srv_loopBLOB() - Execute Main BLOB server loop and wait for clients requests   * rpc_srv_loopBLOB() - Execute Main BLOB server loop and wait for clients requests
  *   *
Line 360  int rpc_srv_loopBLOBServer(rpc_srv_t * __restrict srv) Line 372  int rpc_srv_loopBLOBServer(rpc_srv_t * __restrict srv)
  * @srv = RPC Server instance   * @srv = RPC Server instance
  * @tag = Function tag   * @tag = Function tag
  * @funcaddr = Function address   * @funcaddr = Function address
  * @args = Number of return function arguments  
  * return: -1 error, 0 already registered tag or 1 register ok   * return: -1 error, 0 already registered tag or 1 register ok
  */   */
int rpc_srv_registerCall(rpc_srv_t * __restrict srv, unsigned short tag, int rpc_srv_registerCall(rpc_srv_t * __restrict srv, unsigned short tag, void *funcaddr);
                void *funcaddr, unsigned short args); 
 /*  /*
  * rpc_srv_unregisterCall() - Unregister call from RPC server   * rpc_srv_unregisterCall() - Unregister call from RPC server
  *   *
Line 382  int rpc_srv_unregisterCall(rpc_srv_t * __restrict srv, Line 392  int rpc_srv_unregisterCall(rpc_srv_t * __restrict srv,
  */   */
 inline rpc_func_t *rpc_srv_getCall(rpc_srv_t * __restrict srv, uint16_t tag);  inline rpc_func_t *rpc_srv_getCall(rpc_srv_t * __restrict srv, uint16_t tag);
 /*  /*
 * rpc_srv_execCall() - Execute registered call from RPC server * rpc_srv_execCall() Execute registered call from RPC server
  *   *
 * @call = Register RPC call * @cli = RPC client
  * @rpc = IN RPC call structure   * @rpc = IN RPC call structure
    * @funcname = Execute RPC function
  * @args = IN RPC calling arguments from RPC client   * @args = IN RPC calling arguments from RPC client
  * return: -1 error, !=-1 ok   * return: -1 error, !=-1 ok
  */   */
int rpc_srv_execCall(rpc_func_t * __restrict call, struct tagRPCCall * __restrict rpc, int rpc_srv_execCall(rpc_cli_t * __restrict cli, struct tagRPCCall * __restrict rpc, 
                array_t * __restrict args);                ait_val_t funcname, array_t * __restrict args);
   
   
 /*  /*
Line 483  int rpc_cli_sendBLOB(rpc_cli_t * __restrict cli, ait_v Line 494  int rpc_cli_sendBLOB(rpc_cli_t * __restrict cli, ait_v
  *   *
  * @cli = Client instance   * @cli = Client instance
  * @var = BLOB variable   * @var = BLOB variable
 * @data = BLOB data, must be free after use! * @data = BLOB data, must be e_free after use!
  * return: -1 error, 0 ok, 1 remote error   * return: -1 error, 0 ok, 1 remote error
  */   */
 int rpc_cli_recvBLOB(rpc_cli_t * __restrict cli, ait_val_t * __restrict var, void ** __restrict data);  int rpc_cli_recvBLOB(rpc_cli_t * __restrict cli, ait_val_t * __restrict var, void ** __restrict data);
Line 500  int rpc_cli_delBLOB(rpc_cli_t * __restrict cli, ait_va Line 511  int rpc_cli_delBLOB(rpc_cli_t * __restrict cli, ait_va
  *   *
  * @cli = Client instance   * @cli = Client instance
  * @var = BLOB variable   * @var = BLOB variable
 * @data = BLOB data, must be free after use! * @data = BLOB data, must be e_free after use!
  * return: -1 error, 0 ok, >0 remote error   * return: -1 error, 0 ok, >0 remote error
  */   */
 inline int rpc_cli_getBLOB(rpc_cli_t * __restrict cli, ait_val_t * __restrict var,   inline int rpc_cli_getBLOB(rpc_cli_t * __restrict cli, ait_val_t * __restrict var, 
Line 512  inline int rpc_cli_getBLOB(rpc_cli_t * __restrict cli, Line 523  inline int rpc_cli_getBLOB(rpc_cli_t * __restrict cli,
 /*  /*
  * rpc_cli_openClient() - Connect to RPC Server   * rpc_cli_openClient() - Connect to RPC Server
  *   *
 * @ProgID = ProgramID for RPC session request * @InstID = InstID for RPC session request
 * @ProcID = ProcessID for RPC session request * @netBuf = Network buffer length (min:512 bytes), if =0 == BUFSIZ (also meaning max RPC packet)
 * @netBuf = Network buffer length, if =0 == BUFSIZ (also meaning max RPC packet) 
  * @csHost = Host name or IP address for bind server   * @csHost = Host name or IP address for bind server
  * @Port = Port for bind server, if Port == 0 default port is selected   * @Port = Port for bind server, if Port == 0 default port is selected
    * @proto = Protocol, if == 0 choose SOCK_STREAM
  * return: NULL == error or !=NULL connection to RPC server established   * return: NULL == error or !=NULL connection to RPC server established
  */   */
rpc_cli_t *rpc_cli_openClient(unsigned int ProgID, unsigned char ProcID, int netBuf, rpc_cli_t *rpc_cli_openClient(unsigned char InstID, int netBuf, 
                const char *csHost, unsigned short Port);                const char *csHost, unsigned short Port, int proto);
 /*  /*
  * rpc_cli_closeClient() - Close connection to RPC server and free resources   * rpc_cli_closeClient() - Close connection to RPC server and free resources
  *   *
Line 529  rpc_cli_t *rpc_cli_openClient(unsigned int ProgID, uns Line 540  rpc_cli_t *rpc_cli_openClient(unsigned int ProgID, uns
  */   */
 void rpc_cli_closeClient(rpc_cli_t ** __restrict cli);  void rpc_cli_closeClient(rpc_cli_t ** __restrict cli);
 /*  /*
    * rpc_pkt_Send() - Send RPC packet
    *
    * @sock = Socket
    * @type = Type of socket
    * @sa = Server address
    * @pkt = RPC packet
    * @len = Length of packet
    * return: -1 error or !=-1 sended bytes
    */
   int rpc_pkt_Send(int sock, int type, sockaddr_t * __restrict sa, 
                   ait_val_t * __restrict pkt, int len);
   /*
    * rpc_pkt_Receive() - Receive RPC packet
    *
    * @sock = Socket
    * @type = Type of socket
    * @sa = Server address
    * @pkt = RPC packet
    * return: -1 error or !=-1 sended bytes
    */
   int rpc_pkt_Receive(int sock, int type, sockaddr_t * __restrict sa, 
                   ait_val_t * __restrict pkt);
   /*
    * rpc_pkt_Request() - Build RPC Request packet
    *
    * @pkt = Packet buffer
    * @sess = RPC session info
    * @tag = Function tag for execution
    * @vars = Function argument array of values, may be NULL
    * @noreply = We not want RPC reply
    * @nocrc = Without CRC calculation
    * return: -1 error or != -1 prepared bytes into packet
    */
   int rpc_pkt_Request(ait_val_t * __restrict pkt, rpc_sess_t * __restrict sess, 
                   unsigned short tag, array_t * __restrict vars, int noreply, int nocrc);
   /*
    * rpc_pkt_Replay() - Decode RPC Replay packet
    *
    * @pkt = Packet buffer
    * @sess = RPC session info
    * @tag = Function tag
    * @vars = Function argument array of values, may be NULL
    * @nocrc = Without CRC calculation
    * return: -1 error or != -1 return value from function
    */
   int rpc_pkt_Replay(ait_val_t * __restrict pkt, rpc_sess_t * __restrict sess, 
                   unsigned short tag, array_t ** __restrict vars, int nocrc);
   /*
  * rpc_cli_execCall() - Execute RPC call   * rpc_cli_execCall() - Execute RPC call
  *   *
  * @cli = RPC Client session   * @cli = RPC Client session
  * @noreply = We not want RPC reply   * @noreply = We not want RPC reply
  * @tag = Function tag for execution   * @tag = Function tag for execution
 * @in_vars = IN RPC call array of rpc values * @in_vars = IN function argument array of values, may be NULL
 * @out_vars = OUT returned array of rpc values, must be free after use with rpc_cli_freeVals() * @out_vars = OUT returned array of rpc values, if !=NULL must be free after use with ait_freeVars()
  * return: -1 error or != -1 ok result   * return: -1 error or != -1 ok result
  */   */
int rpc_cli_execCall(rpc_cli_t *cli, int noreply, u_short tag, int rpc_cli_execCall(rpc_cli_t *cli, int noreply, unsigned short tag, 
                 array_t * __restrict in_vars, array_t ** __restrict out_vars);                  array_t * __restrict in_vars, array_t ** __restrict out_vars);
   /*
    * rpc_cli_freeCall() - Free resouce allocated by RPC call
    *
    * @out_vars = Returned array with variables from RPC call
    * return: none
    */
   inline void rpc_cli_freeCall(array_t ** __restrict out_vars);
   /*
    * rpc_cli_ping() - Ping RPC server
    *
    * @cli = connected client
    * return: -1 error or !=-1 ping seq id
    */
   inline int rpc_cli_ping(rpc_cli_t *cli);
   
   
 /*  /*
Line 549  int rpc_cli_execCall(rpc_cli_t *cli, int noreply, u_sh Line 622  int rpc_cli_execCall(rpc_cli_t *cli, int noreply, u_sh
  * @Port = Port for bind server, if Port == 0 default port is selected   * @Port = Port for bind server, if Port == 0 default port is selected
  * return: NULL == error or !=NULL connection to BLOB server established   * return: NULL == error or !=NULL connection to BLOB server established
  */   */
rpc_cli_t *rpc_cli_openBLOBClient(rpc_cli_t * __restrict rpccli, u_short Port);rpc_cli_t *rpc_cli_openBLOBClient(rpc_cli_t * __restrict rpccli, unsigned short Port);
 /*  /*
  * rpc_cli_closeBLOBClient() - Close connection to BLOB server and free resources   * rpc_cli_closeBLOBClient() - Close connection to BLOB server and free resources
  *   *
Removed from v.1.8.2.18  
changed lines
  Added in v.1.13.2.2

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