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146 | f9daq | 1 | /* Revision history: */ |
2 | /* $Id: vxi11_user.h,v 1.10 2007/10/30 12:47:33 sds Exp $ */ |
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3 | /* |
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4 | * $Log: vxi11_user.h,v $ |
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5 | * Revision 1.10 2007/10/30 12:47:33 sds |
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6 | * changed a lot of char *'s to const char *'s in an attempt to get |
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7 | * rid of pedantic gcc compiler warnings. |
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8 | * |
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9 | * Revision 1.9 2007/07/11 14:20:56 sds |
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10 | * removed #include <iostream> as not needed |
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11 | * removed using namespace std |
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12 | * |
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13 | * Revision 1.8 2007/07/10 13:54:11 sds |
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14 | * Added extra function: |
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15 | * int vxi11_open_device(char *ip, CLINK *clink, char *device); |
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16 | * This replaces the original vxi11_open_device fn, which did not pass |
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17 | * a char *device. Wrapper fn used for backwards compatibility. |
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18 | * |
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19 | * Revision 1.7 2007/07/10 11:20:43 sds |
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20 | * removed the following function: |
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21 | * int vxi11_open_link(CLIENT **client, VXI11_LINK **link); |
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22 | * ...since it was no longer needed, following the patch by |
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23 | * Robert Larice. |
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24 | * |
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25 | * Revision 1.6 2006/12/08 11:47:14 ijc |
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26 | * error on last ci, sorted. |
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27 | * |
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28 | * Revision 1.5 2006/12/08 11:45:29 ijc |
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29 | * added #define VXI11_NULL_READ_RESP |
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30 | * |
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31 | * Revision 1.4 2006/12/07 12:26:17 sds |
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32 | * added VXI11_NULL_READ_RESP #define |
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33 | * |
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34 | * Revision 1.3 2006/07/06 13:03:28 sds |
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35 | * Surrounded the whole header with #ifndef __VXI11_USER__. |
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36 | * Added a couple of vxi11_open_link() fns and a vxi11_close_link() fn, to |
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37 | * separate the link stuff from the client stuff. |
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38 | * |
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39 | * Revision 1.2 2006/06/26 12:42:54 sds |
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40 | * Introduced a new CLINK structure, to reduce the number of arguments |
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41 | * passed to functions. Wrote wrappers for open(), close(), send() |
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42 | * and receieve() functions, then adjusted all the other functions built |
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43 | * on those to make use of the CLINK structure. |
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44 | * |
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45 | * Revision 1.1 2006/06/26 10:36:02 sds |
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46 | * Initial revision |
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47 | * |
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48 | */ |
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49 | |||
50 | /* vxi11_user.h |
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51 | * Copyright (C) 2006 Steve D. Sharples |
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52 | * |
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53 | * User library for opening, closing, sending to and receiving from |
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54 | * a device enabled with the VXI11 RPC ethernet protocol. Uses the files |
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55 | * generated by rpcgen vxi11.x. |
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56 | * |
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57 | * This program is free software; you can redistribute it and/or |
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58 | * modify it under the terms of the GNU General Public License |
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59 | * as published by the Free Software Foundation; either version 2 |
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60 | * of the License, or (at your option) any later version. |
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61 | * |
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62 | * This program is distributed in the hope that it will be useful, |
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63 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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64 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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65 | * GNU General Public License for more details. |
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66 | * |
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67 | * You should have received a copy of the GNU General Public License |
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68 | * along with this program; if not, write to the Free Software |
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69 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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70 | * |
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71 | * The author's email address is steve.sharples@nottingham.ac.uk |
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72 | */ |
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73 | |||
74 | #ifndef __VXI11_USER__ |
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75 | #define __VXI11_USER__ |
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76 | #include <stdio.h> |
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77 | #include <stdlib.h> |
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78 | #include <string.h> |
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79 | |||
80 | #include <rpc/rpc.h> |
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81 | #include "vxi11.h" |
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82 | |||
83 | #define VXI11_DEFAULT_TIMEOUT 10000 /* in ms */ |
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84 | #define VXI11_READ_TIMEOUT 2000 /* in ms */ |
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85 | #define VXI11_CLIENT CLIENT |
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86 | #define VXI11_LINK Create_LinkResp |
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87 | #define VXI11_MAX_CLIENTS 256 /* maximum no of unique IP addresses/clients */ |
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88 | #define VXI11_NULL_READ_RESP 50 /* vxi11_receive() return value if a query |
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89 | * times out ON THE INSTRUMENT (and so we have |
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90 | * to resend the query again) */ |
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91 | #define VXI11_NULL_WRITE_RESP 51 /* vxi11_send() return value if a sent command |
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92 | * times out ON THE INSTURMENT. */ |
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93 | |||
94 | struct CLINK { |
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95 | VXI11_CLIENT *client; |
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96 | VXI11_LINK *link; |
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97 | } ; |
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98 | typedef struct CLINK CLINK; |
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99 | |||
100 | /* The four main functions: open, close, send, receieve (plus a couple of wrappers) */ |
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101 | /* In fact all 6 of these are wrappers to the original functions listed at the |
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102 | * bottom, that use separate CLIENT and VXI11_LINK structures. It was easier to |
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103 | * write wrappers for these functions than to re-write the original functions |
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104 | * themselves. These are the 4 (or 6 if you like) key user functions that you |
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105 | * should probably be using. They all use the CLINK structure. */ |
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106 | int vxi11_open_device(const char *ip, CLINK *clink); |
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107 | int vxi11_open_device(const char *ip, CLINK *clink, char *device); |
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108 | int vxi11_close_device(const char *ip, CLINK *clink); |
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109 | int vxi11_send(CLINK *clink, const char *cmd); |
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110 | int vxi11_send(CLINK *clink, const char *cmd, unsigned long len); |
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111 | long vxi11_receive(CLINK *clink, char *buffer, unsigned long len); |
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112 | long vxi11_receive(CLINK *clink, char *buffer, unsigned long len, unsigned long timeout); |
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113 | int vxi11_queryxx(CLINK *clink, char *mycmd); |
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114 | /* Utility functions, that use send() and receive(). Use these too. */ |
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115 | int vxi11_send_data_block(CLINK *clink, const char *cmd, char *buffer, unsigned long len); |
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116 | long vxi11_receive_data_block(CLINK *clink, char *buffer, unsigned long len, unsigned long timeout); |
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117 | long vxi11_send_and_receive(CLINK *clink, const char *cmd, char *buf, unsigned long buf_len, unsigned long timeout); |
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118 | long vxi11_obtain_long_value(CLINK *clink, const char *cmd, unsigned long timeout); |
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119 | double vxi11_obtain_double_value(CLINK *clink, const char *cmd, unsigned long timeout); |
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120 | long vxi11_obtain_long_value(CLINK *clink, const char *cmd); |
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121 | double vxi11_obtain_double_value(CLINK *link, const char *cmd); |
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122 | |||
123 | /* When I first wrote this library I used separate client and links. I've |
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124 | * retained the original functions and just written clink wrappers for them |
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125 | * (see above) as it's perhaps a little clearer this way. Probably not worth |
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126 | * delving this deep in use, but it's where the real nitty gritty is. */ |
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127 | int vxi11_open_device(const char *ip, CLIENT **client, VXI11_LINK **link, char *device); |
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128 | int vxi11_open_link(const char *ip, CLIENT **client, VXI11_LINK **link, char *device); |
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129 | int vxi11_close_device(const char *ip, CLIENT *client, VXI11_LINK *link); |
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130 | int vxi11_close_link(const char *ip, CLIENT *client, VXI11_LINK *link); |
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131 | int vxi11_send(CLIENT *client, VXI11_LINK *link, const char *cmd); |
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132 | int vxi11_send(CLIENT *client, VXI11_LINK *link, const char *cmd, unsigned long len); |
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133 | long vxi11_receive(CLIENT *client, VXI11_LINK *link, char *buffer, unsigned long len); |
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134 | long vxi11_receive(CLIENT *client, VXI11_LINK *link, char *buffer, unsigned long len, unsigned long timeout); |
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135 | |||
136 | #endif |