1 | #ifndef SILINK_H |
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2 | #define SILINK_H |
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3 | /**************************************** |
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4 | * Computer Algebra System SINGULAR * |
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5 | ****************************************/ |
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6 | /* $Id: silink.h,v 1.6 1997-04-08 08:43:29 obachman Exp $ */ |
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7 | /* |
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8 | * ABSTRACT |
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9 | */ |
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10 | /* $Log: not supported by cvs2svn $ |
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11 | * Revision 1.4 1997/03/28 21:44:37 obachman |
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12 | * Fri Mar 28 14:12:05 1997 Olaf Bachmann |
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13 | * <obachman@ratchwum.mathematik.uni-kl.de (Olaf Bachmann)> |
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14 | * |
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15 | * * Added routines dump(link) and getdump(link) for ascii and MP |
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16 | * links |
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17 | * |
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18 | * * ipconv.cc (dConvertTypes): added int->module conversion so that |
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19 | * 'module m = 0' works |
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20 | * |
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21 | * * iparith.cc (jjVAR1): added LINK_CMD to list of typeof(...) |
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22 | * |
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23 | * Revision 1.3 1997/03/26 14:58:03 obachman |
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24 | * Wed Mar 26 14:02:15 1997 Olaf Bachmann |
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25 | * <obachman@ratchwum.mathematik.uni-kl.de (Olaf Bachmann)> |
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26 | * |
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27 | * * added reference counter to links, updated slKill, slCopy, slInit |
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28 | * * various small bug fixes for Batch mode |
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29 | * |
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30 | * Revision 1.1.1.1 1997/03/19 13:18:41 obachman |
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31 | * Imported Singular sources |
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32 | * |
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33 | */ |
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34 | |
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35 | #include "structs.h" |
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36 | |
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37 | // extension links: |
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38 | typedef BOOLEAN (*slOpenProc)(si_link l, short flag); |
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39 | typedef BOOLEAN (*slWriteProc)(si_link l, leftv lv); |
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40 | typedef BOOLEAN (*slCloseProc)(si_link l); |
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41 | typedef leftv (*slReadProc)(si_link l); |
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42 | typedef leftv (*slRead2Proc)(si_link l, leftv a); |
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43 | typedef BOOLEAN (*slDumpProc)(si_link l); |
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44 | typedef BOOLEAN (*slGetDumpProc)(si_link l); |
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45 | typedef char* (*slStatusProc)(si_link l, char *request); |
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46 | |
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47 | struct s_si_link_extension |
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48 | { |
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49 | si_link_extension next; |
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50 | slOpenProc Open; |
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51 | slCloseProc Close; |
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52 | slReadProc Read; |
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53 | slRead2Proc Read2; |
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54 | slWriteProc Write; |
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55 | slDumpProc Dump; |
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56 | slGetDumpProc GetDump; |
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57 | slStatusProc Status; |
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58 | char *type; |
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59 | }; |
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60 | |
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61 | struct sip_link |
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62 | { |
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63 | si_link_extension m; // methods |
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64 | char *mode; |
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65 | char *name; // used for filename and/or further specs |
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66 | void *data; // the link itself |
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67 | BITSET flags; // 0=close open = 1: read = 2: write = 3 |
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68 | short ref; // reference counter |
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69 | }; |
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70 | |
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71 | BOOLEAN slExtend(si_link_extension s); |
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72 | |
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73 | // flags: |
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74 | #define SI_LINK_CLOSE 0 |
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75 | #define SI_LINK_OPEN 1 |
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76 | #define SI_LINK_READ 2 |
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77 | #define SI_LINK_WRITE 4 |
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78 | |
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79 | // tests: |
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80 | #define SI_LINK_CLOSE_P(l) (!(l)->flags) |
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81 | #define SI_LINK_OPEN_P(l) ((l)->flags & SI_LINK_OPEN) |
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82 | #define SI_LINK_W_OPEN_P(l) ((l)->flags & SI_LINK_WRITE) |
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83 | #define SI_LINK_R_OPEN_P(l) ((l)->flags & SI_LINK_READ) |
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84 | #define SI_LINK_RW_OPEN_P(l) (SI_LINK_W_OPEN_P(l) && SI_LINK_R_OPEN_P(l)) |
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85 | |
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86 | #define SI_LINK_SET_CLOSE_P(l) ((l)->flags = SI_LINK_CLOSE) |
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87 | #define SI_LINK_SET_OPEN_P(l, flag) ((l)->flags = (l)->flags |SI_LINK_OPEN |flag) |
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88 | #define SI_LINK_SET_W_OPEN_P(l) ((l)->flags = (l)->flags | SI_LINK_OPEN | SI_LINK_WRITE) |
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89 | #define SI_LINK_SET_R_OPEN_P(l) ((l)->flags = (l)->flags | SI_LINK_OPEN | SI_LINK_READ) |
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90 | #define SI_LINK_SET_RW_OPEN_P(l) ((l)->flags = (l)->flags | SI_LINK_OPEN | SI_LINK_READ | SI_LINK_WRITE) |
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91 | |
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92 | BOOLEAN slOpen(si_link l, short flag); |
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93 | BOOLEAN slClose(si_link l); |
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94 | leftv slRead(si_link l,leftv a=NULL); |
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95 | BOOLEAN slWrite(si_link l, leftv v); |
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96 | BOOLEAN slDump(si_link l); |
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97 | BOOLEAN slGetDump(si_link l); |
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98 | char* slStatus(si_link l, char *request); |
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99 | BOOLEAN slInit(si_link l, char *str); |
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100 | void slKill(si_link l); |
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101 | void slCleanUp(si_link l); |
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102 | void slStandardInit(); |
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103 | inline si_link slCopy(si_link l) |
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104 | { |
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105 | l->ref++; |
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106 | return l; |
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107 | } |
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108 | |
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109 | #endif // SILINK_H |
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