1 | /**************************************** |
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2 | * Computer Algebra System SINGULAR * |
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3 | ****************************************/ |
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4 | /* $Id: sing_mp.cc,v 1.8 1997-04-09 12:20:10 Singular Exp $ */ |
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5 | |
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6 | /* |
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7 | * ABSTRACT: interface to MP links |
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8 | */ |
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9 | |
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10 | #include "mod2.h" |
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11 | |
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12 | #ifdef HAVE_MPSR |
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13 | |
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14 | #include <stdio.h> |
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15 | #include <string.h> |
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16 | #include <unistd.h> |
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17 | #include "tok.h" |
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18 | #include "mmemory.h" |
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19 | #include "febase.h" |
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20 | #include "subexpr.h" |
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21 | #include "ipid.h" |
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22 | #include "silink.h" |
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23 | #include"mpsr.h" |
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24 | |
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25 | #ifdef MPSR_DEBUG |
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26 | #define MP_SET_LINK_OPTIONS(link) \ |
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27 | if (link != NULL) \ |
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28 | MP_SetLinkOption(link,MP_LINK_LOG_MASK_OPT,MP_LOG_ALL_EVENTS) |
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29 | #else |
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30 | #define MP_SET_LINK_OPTIONS(link) ((void *) 0) |
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31 | #endif |
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32 | |
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33 | MP_Env_pt mp_Env = NULL; |
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34 | |
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35 | /* =============== general utilities ====================================== */ |
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36 | void FreeCmdArgs(int argc, char** argv) |
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37 | { |
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38 | int i; |
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39 | for (i=0; i<argc; i++) |
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40 | FreeL(argv[i]); |
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41 | |
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42 | Free(argv, argc*sizeof(char *)); |
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43 | } |
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44 | |
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45 | void GetCmdArgs(int *argc, char ***argv, char *str) |
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46 | { |
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47 | if (str == NULL || str[0] == '\0') |
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48 | { |
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49 | *argc = 0; |
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50 | *argv = NULL; |
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51 | } |
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52 | else |
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53 | { |
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54 | int i = 0, sl = strlen(str)+1, j; |
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55 | char *s2=mstrdup(str); |
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56 | |
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57 | char *appl = strstr(s2, "-MPapplication"); |
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58 | if (appl != NULL) |
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59 | { |
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60 | if (appl != s2) *(appl-1) = '\0'; |
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61 | i = 2; |
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62 | } |
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63 | |
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64 | if (appl != s2) |
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65 | { |
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66 | if (strtok(s2, " ") != NULL) |
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67 | { |
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68 | i++; |
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69 | while (strtok(NULL," ") != NULL) i++; |
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70 | } |
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71 | } |
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72 | |
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73 | *argc = i; |
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74 | if (i>0) |
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75 | { |
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76 | *argv = (char **) Alloc0(i*sizeof(char *)); |
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77 | if (appl != NULL) i -= 2; |
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78 | if (i>0) |
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79 | { |
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80 | strcpy(s2,str); |
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81 | *argv[0] = mstrdup(strtok(s2, " ")); |
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82 | for(j = 1; j <i; j++) |
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83 | (*argv)[j] = mstrdup(strtok(NULL, " ")); |
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84 | } |
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85 | } |
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86 | else |
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87 | *argv = NULL; |
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88 | |
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89 | if (appl != NULL) |
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90 | { |
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91 | (*argv)[*argc -2] = mstrdup("-MPapplication"); |
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92 | (*argv)[*argc -1] = mstrdup(&(appl[15])); |
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93 | } |
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94 | |
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95 | FreeL(s2); |
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96 | } |
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97 | |
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98 | } |
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99 | |
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100 | /*************************************************************** |
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101 | * |
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102 | * MPfile specific stuff |
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103 | * |
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104 | ***************************************************************/ |
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105 | BOOLEAN slOpenMPFile(si_link l, short flag) |
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106 | { |
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107 | char *argv[] = {"-MPtransp", "FILE", "-MPmode", "append", |
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108 | "-MPfile", "/tmp/mpout"}; |
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109 | char *mode; |
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110 | |
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111 | MP_Link_pt link = NULL; |
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112 | |
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113 | if (flag == SI_LINK_OPEN) |
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114 | { |
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115 | if (l->mode[0] != '\0' && (strcmp(l->mode, "r") == 0)) |
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116 | flag = SI_LINK_READ; |
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117 | else flag = SI_LINK_WRITE; |
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118 | } |
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119 | |
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120 | if (l->name[0] != '\0') argv[5] = l->name; |
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121 | else l->name = mstrdup(argv[5]); |
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122 | |
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123 | |
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124 | if (flag == SI_LINK_READ) |
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125 | { |
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126 | argv[3] = "read"; |
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127 | mode = "r"; |
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128 | } |
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129 | else if (strcmp(l->mode, "w") == 0) |
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130 | { |
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131 | argv[3] = "write"; |
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132 | mode = "w"; |
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133 | } |
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134 | else |
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135 | { |
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136 | mode = "a"; |
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137 | } |
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138 | |
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139 | if (mp_Env == NULL) |
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140 | mp_Env = MP_InitializeEnv(MP_AllocateEnv()); |
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141 | |
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142 | if (mp_Env == NULL) |
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143 | { |
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144 | Werror("Open: Error in initialization of MP environment"); |
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145 | return TRUE; |
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146 | } |
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147 | |
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148 | if ((link = MP_OpenLink(mp_Env, 6, argv)) == NULL) |
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149 | return TRUE; |
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150 | |
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151 | MP_SET_LINK_OPTIONS(link); |
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152 | l->data = (void *) link; |
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153 | SI_LINK_SET_OPEN_P(l, flag); |
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154 | FreeL(l->mode); |
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155 | l->mode = mstrdup(mode); |
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156 | return FALSE; |
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157 | } |
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158 | |
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159 | /*************************************************************** |
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160 | * |
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161 | * MPtcp specific stuff |
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162 | * |
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163 | ***************************************************************/ |
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164 | |
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165 | static MP_Link_pt slOpenMPConnect(int n_argc, char **n_argv) |
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166 | { |
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167 | char *argv[] = {"-MPtransp", "TCP", "-MPmode", "connect", "-MPport", |
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168 | "1025", "-MPhost", "localhost"}; |
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169 | char *port = IMP_GetCmdlineArg(n_argc, n_argv, "-MPport"); |
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170 | char *host = IMP_GetCmdlineArg(n_argc, n_argv, "-MPhost"); |
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171 | |
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172 | |
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173 | if (port == NULL) |
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174 | Warn("No port number specified for MPtcp:connect; Used %s", argv[5]); |
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175 | else argv[5] = port; |
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176 | |
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177 | if (host == NULL) |
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178 | { |
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179 | Warn("No host specified for MPtcp:connect; Used %s", mp_Env->thishost); |
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180 | argv[7] = mp_Env->thishost; |
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181 | } |
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182 | else |
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183 | argv[7] = host; |
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184 | |
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185 | return MP_OpenLink(mp_Env, 8, argv); |
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186 | } |
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187 | |
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188 | static MP_Link_pt slOpenMPListen(int n_argc, char **n_argv) |
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189 | { |
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190 | char *argv[] = {"-MPtransp", "TCP", "-MPmode", "listen", "-MPport", "1025"}; |
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191 | char *port = IMP_GetCmdlineArg(n_argc, n_argv, "-MPport"); |
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192 | |
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193 | if (port == NULL) |
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194 | Warn("No port number specified for MPtcp:listen; Used %s", argv[5]); |
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195 | else argv[5] = port; |
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196 | |
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197 | return MP_OpenLink(mp_Env, 6, argv); |
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198 | } |
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199 | |
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200 | static MP_Link_pt slOpenMPLaunch(int n_argc, char **n_argv) |
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201 | { |
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202 | char *argv[] = {"-MPtransp", "TCP", "-MPmode", "launch", |
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203 | "-MPhost", "localhost", "-MPapplication", "Singular -b"}; |
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204 | char *appl = IMP_GetCmdlineArg(n_argc, n_argv, "-MPapplication"); |
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205 | char *host = IMP_GetCmdlineArg(n_argc, n_argv, "-MPhost"); |
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206 | |
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207 | |
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208 | if (appl == NULL) |
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209 | Warn("No application specified for MPtcp:launch; Used %s", argv[7]); |
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210 | else argv[7] = appl; |
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211 | |
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212 | if (host == NULL) |
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213 | { |
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214 | Warn("No host specified for MPtcp:launch; Used %s", mp_Env->thishost); |
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215 | argv[5] = mp_Env->thishost; |
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216 | } |
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217 | else |
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218 | argv[5] = host; |
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219 | |
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220 | return MP_OpenLink(mp_Env, 8, argv); |
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221 | } |
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222 | |
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223 | BOOLEAN slOpenMPTcp(si_link l, short flag) |
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224 | { |
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225 | MP_Link_pt link = NULL; |
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226 | char **argv; |
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227 | int argc; |
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228 | |
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229 | GetCmdArgs(&argc, &argv, l->name); |
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230 | |
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231 | if (mp_Env == NULL) |
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232 | mp_Env = MP_InitializeEnv(MP_AllocateEnv()); |
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233 | |
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234 | if (mp_Env == NULL) |
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235 | { |
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236 | Werror("Open: Error in initialization of MP environment"); |
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237 | return TRUE; |
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238 | } |
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239 | |
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240 | if (strcmp(l->mode, "connect") == 0) link = slOpenMPConnect(argc, argv); |
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241 | else if (strcmp(l->mode, "listen") == 0) link = slOpenMPListen(argc, argv); |
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242 | else |
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243 | { |
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244 | link = slOpenMPLaunch(argc, argv); |
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245 | if (link != NULL && (strcmp(l->mode, "launch") != 0)) |
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246 | { |
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247 | FreeL(l->mode); |
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248 | l->mode = mstrdup("launch"); |
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249 | } |
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250 | } |
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251 | |
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252 | FreeCmdArgs(argc, argv); |
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253 | |
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254 | if (link != NULL) |
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255 | { |
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256 | MP_SET_LINK_OPTIONS(link); |
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257 | SI_LINK_SET_RW_OPEN_P(l); |
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258 | l->data = (void *) link; |
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259 | return FALSE; |
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260 | } |
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261 | else return TRUE; |
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262 | } |
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263 | |
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264 | /*************************************************************** |
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265 | * |
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266 | * MP general stuff |
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267 | * |
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268 | ***************************************************************/ |
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269 | |
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270 | BOOLEAN slWriteMP(si_link l, leftv v) |
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271 | { |
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272 | mpsr_ClearError(); |
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273 | if (mpsr_PutMsg((MP_Link_pt) l->data, v) != mpsr_Success) |
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274 | { |
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275 | mpsr_PrintError((MP_Link_pt) l->data); |
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276 | return TRUE; |
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277 | } |
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278 | else |
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279 | return FALSE; |
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280 | } |
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281 | |
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282 | leftv slReadMP(si_link l) |
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283 | { |
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284 | leftv v = NULL; |
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285 | mpsr_ClearError(); |
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286 | if (mpsr_GetMsg((MP_Link_pt) l->data, v) != mpsr_Success) |
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287 | { |
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288 | mpsr_PrintError((MP_Link_pt) l->data); |
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289 | return NULL; |
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290 | } |
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291 | else |
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292 | return v; |
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293 | } |
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294 | |
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295 | static void SentQuitMsg(si_link l) |
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296 | { |
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297 | leftv v = (leftv) Alloc0(sizeof(sleftv)); |
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298 | |
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299 | v->rtyp = STRING_CMD; |
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300 | v->data = "MP:Quit"; |
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301 | slWriteMP(l, v); |
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302 | Free(v, sizeof(sleftv)); |
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303 | } |
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304 | |
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305 | BOOLEAN slCloseMP(si_link l) |
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306 | { |
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307 | if ((strcmp(l->mode, "launch") == 0) && |
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308 | (MP_GetLinkStatus((MP_Link_pt)l->data,MP_LinkReadyWriting) == MP_TRUE)) |
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309 | SentQuitMsg(l); |
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310 | MP_CloseLink((MP_Link_pt) l->data); |
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311 | SI_LINK_SET_CLOSE_P(l); |
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312 | return FALSE; |
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313 | } |
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314 | |
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315 | |
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316 | BOOLEAN slDumpMP(si_link l) |
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317 | { |
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318 | mpsr_ClearError(); |
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319 | if (mpsr_PutDump((MP_Link_pt) l->data) != mpsr_Success) |
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320 | { |
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321 | mpsr_PrintError((MP_Link_pt) l->data); |
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322 | return TRUE; |
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323 | } |
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324 | else |
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325 | return FALSE; |
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326 | } |
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327 | |
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328 | BOOLEAN slGetDumpMP(si_link l) |
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329 | { |
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330 | mpsr_ClearError(); |
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331 | if (mpsr_GetDump((MP_Link_pt) l->data) != mpsr_Success) |
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332 | { |
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333 | mpsr_PrintError((MP_Link_pt) l->data); |
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334 | return TRUE; |
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335 | } |
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336 | else |
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337 | return FALSE; |
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338 | } |
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339 | |
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340 | char* slStatusMP(si_link l, char* request) |
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341 | { |
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342 | if (strcmp(request, "read") == 0) |
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343 | { |
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344 | if (SI_LINK_R_OPEN_P(l) && |
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345 | (MP_GetLinkStatus((MP_Link_pt)l->data,MP_LinkReadyReading) == MP_TRUE)) |
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346 | return "ready"; |
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347 | else return "not ready"; |
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348 | } |
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349 | else if (strcmp(request, "write") == 0) |
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350 | { |
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351 | if (SI_LINK_W_OPEN_P(l) && |
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352 | (MP_GetLinkStatus((MP_Link_pt)l->data,MP_LinkReadyWriting) == MP_TRUE)) |
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353 | return "ready"; |
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354 | else return "not ready"; |
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355 | } |
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356 | else return "unknown status request"; |
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357 | } |
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358 | |
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359 | /*************************************************************** |
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360 | * |
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361 | * MP batch stuff |
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362 | * |
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363 | ***************************************************************/ |
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364 | |
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365 | // #define MPSR_BATCH_DEBUG |
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366 | #ifdef MPSR_BATCH_DEBUG |
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367 | static BOOLEAN stop = 1; |
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368 | #endif |
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369 | |
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370 | int Batch_do(int argc, char **argv) |
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371 | { |
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372 | #ifdef MPSR_BATCH_DEBUG |
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373 | fprintf(stderr, "Was started with pid %d\n", getpid()); |
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374 | while (stop){}; |
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375 | #endif |
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376 | si_link silink = (si_link) Alloc0(sizeof(sip_link)); |
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377 | leftv v = NULL; |
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378 | char *port = IMP_GetCmdlineArg(argc, argv, "-MPport"); |
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379 | char *host = IMP_GetCmdlineArg(argc, argv, "-MPhost"); |
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380 | char *istr; |
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381 | idhdl id; |
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382 | |
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383 | // parse argv to get port and host |
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384 | if (port == NULL) |
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385 | { |
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386 | fprintf(stderr, |
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387 | "Need '-MPport portnumber' command line argument in batch modus\n"); |
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388 | return 1; |
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389 | } |
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390 | if (host == NULL) |
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391 | { |
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392 | fprintf(stderr, |
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393 | "Need '-MPhost hostname' command line argument in batch modus\n"); |
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394 | return 1; |
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395 | } |
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396 | |
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397 | // initialize si_link |
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398 | istr = (char *) AllocL((strlen(port) + strlen(host) + 40)*sizeof(char)); |
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399 | sprintf(istr, "MPtcp:connect -MPport %s -MPhost %s", port, host); |
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400 | slInit(silink, istr); |
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401 | FreeL(istr); |
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402 | |
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403 | // open link |
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404 | if (slOpen(silink, SI_LINK_OPEN)) |
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405 | { |
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406 | fprintf(stderr, "Batch side could not connect on port %s and host %s\n", |
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407 | port, host); |
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408 | return 1; |
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409 | } |
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410 | |
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411 | // establish top-level identifier for link |
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412 | id = enterid(mstrdup("mp_ll"), 0, LINK_CMD, &idroot, FALSE); |
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413 | IDLINK(id) = silink; |
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414 | |
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415 | // the main read-eval-write loop |
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416 | while(1) |
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417 | { |
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418 | v = slRead(silink, v); |
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419 | if (feErrors != NULL) |
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420 | { |
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421 | if (v != NULL) v->CleanUp(); |
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422 | v = mpsr_InitLeftv(STRING_CMD, (void *) feErrors); |
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423 | feErrors = NULL; |
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424 | } |
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425 | |
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426 | // no need to evaluate -- it is done in the read |
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427 | if (v->Typ() == STRING_CMD && (strcmp((char *)v->Data(), "MP:Quit") == 0)) |
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428 | { |
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429 | slKill(silink); |
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430 | return 0; |
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431 | } |
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432 | |
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433 | slWriteMP(silink, v); |
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434 | |
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435 | if (v != NULL) |
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436 | { |
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437 | v->CleanUp(); |
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438 | Free(v, sizeof(sleftv)); |
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439 | v = NULL; |
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440 | } |
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441 | } |
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442 | // should never get here |
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443 | return 1; |
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444 | } |
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445 | |
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446 | /*************************************************************** |
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447 | * |
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448 | * MP link Extension inits |
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449 | * |
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450 | ***************************************************************/ |
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451 | |
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452 | void slInitMPFileExtension(si_link_extension s) |
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453 | { |
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454 | s->Open=slOpenMPFile; |
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455 | s->Close=slCloseMP; |
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456 | s->Read=slReadMP; |
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457 | //s->Read2=NULL; |
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458 | s->Dump=slDumpMP; |
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459 | s->GetDump=slGetDumpMP; |
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460 | s->Write=slWriteMP; |
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461 | s->Status=slStatusMP; |
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462 | s->type="MPfile"; |
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463 | } |
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464 | |
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465 | void slInitMPTcpExtension(si_link_extension s) |
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466 | { |
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467 | s->Open=slOpenMPTcp; |
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468 | s->Close=slCloseMP; |
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469 | s->Read=slReadMP; |
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470 | //s->Read2=NULL; |
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471 | s->Dump=slDumpMP; |
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472 | s->GetDump=slGetDumpMP; |
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473 | s->Write=slWriteMP; |
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474 | s->Status=slStatusMP; |
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475 | s->type="MPtcp"; |
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476 | } |
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477 | |
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478 | #endif |
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479 | |
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