| 1 | /* dl_netware.xs |
| 2 | * |
| 3 | * Platform: NetWare |
| 4 | * Author: SGP |
| 5 | * Created: 21st July 2000 |
| 6 | * Last Modified: 23rd Oct 2000 |
| 7 | * Note: !!!Any modification to the xs file to be done to the one which is under netware directory!!! |
| 8 | * Modification History |
| 9 | * 23rd Oct - Failing to find nlms with long names fixed - sdbm_file |
| 10 | */ |
| 11 | |
| 12 | /* |
| 13 | |
| 14 | NetWare related modifications done on dl_win32.xs file created by Wei-Yuen Tan to get this file. |
| 15 | |
| 16 | */ |
| 17 | |
| 18 | |
| 19 | #include <nwthread.h> |
| 20 | #include <nwerrno.h> |
| 21 | |
| 22 | #include "EXTERN.h" |
| 23 | #include "perl.h" |
| 24 | #include "XSUB.h" |
| 25 | |
| 26 | |
| 27 | //function pointer for UCSInitialize |
| 28 | typedef void (*PFUCSINITIALIZE) (); |
| 29 | |
| 30 | #include "dlutils.c" /* SaveError() etc */ |
| 31 | |
| 32 | static void |
| 33 | dl_private_init(pTHX) |
| 34 | { |
| 35 | (void)dl_generic_private_init(aTHX); |
| 36 | } |
| 37 | |
| 38 | |
| 39 | MODULE = DynaLoader PACKAGE = DynaLoader |
| 40 | |
| 41 | BOOT: |
| 42 | (void)dl_private_init(aTHX); |
| 43 | |
| 44 | |
| 45 | void * |
| 46 | dl_load_file(filename,flags=0) |
| 47 | char * filename |
| 48 | int flags |
| 49 | PREINIT: |
| 50 | CODE: |
| 51 | { |
| 52 | char* mod_name = filename; |
| 53 | |
| 54 | //Names with more than 8 chars can't be found with FindNLMHandle |
| 55 | //8 - Name, 1 - Period, 3 - Extension, 1 - String terminator |
| 56 | char mod_name8[13]={'\0'}; |
| 57 | char *p=NULL; |
| 58 | char *buffer=NULL; |
| 59 | int nNameLength=0; |
| 60 | unsigned int nlmHandle=0; |
| 61 | |
| 62 | while (*mod_name) mod_name++; |
| 63 | |
| 64 | //Get the module name with extension to see if it is already loaded |
| 65 | while (mod_name > filename && mod_name[-1] != '/' && mod_name[-1] != '\\') mod_name--; |
| 66 | |
| 67 | DLDEBUG(1,PerlIO_printf(Perl_debug_log,"dl_load_file(%s):\n", filename)); |
| 68 | |
| 69 | buffer = strdup(mod_name); |
| 70 | p = strtok (buffer, "."); |
| 71 | if (p) { |
| 72 | nNameLength = (strlen(p)>8)?8:strlen(p); |
| 73 | memcpy(mod_name8,p,nNameLength); |
| 74 | *(mod_name8 + nNameLength) = '.'; |
| 75 | *(mod_name8 + nNameLength+1) ='\0'; |
| 76 | p = strtok (NULL, "."); |
| 77 | if (p){ |
| 78 | strcat(mod_name8,p); |
| 79 | |
| 80 | if ( (nlmHandle = FindNLMHandle(mod_name8)) == NULL ) |
| 81 | { |
| 82 | //NLM/NLP not loaded, load it and get the handle |
| 83 | if(spawnlp(P_NOWAIT, filename, filename, NULL)!=0) |
| 84 | { |
| 85 | //failed to load the NLM/NLP, this unlikely |
| 86 | //If multiple scripts are executed for the first time before running any other |
| 87 | //ucs script, sometimes there used to be an abend. |
| 88 | switch(NetWareErrno) |
| 89 | { |
| 90 | case LOAD_CAN_NOT_LOAD_MULTIPLE_COPIES: |
| 91 | nlmHandle = FindNLMHandle(mod_name8); |
| 92 | break; |
| 93 | case LOAD_ALREADY_IN_PROGRESS: |
| 94 | #ifdef MPK_ON |
| 95 | kYieldThread(); |
| 96 | #else |
| 97 | ThreadSwitch(); |
| 98 | #endif //MPK_ON |
| 99 | nlmHandle = FindNLMHandle(mod_name8); |
| 100 | break; |
| 101 | default: |
| 102 | nlmHandle = 0; |
| 103 | } |
| 104 | } |
| 105 | else |
| 106 | { |
| 107 | nlmHandle = FindNLMHandle(mod_name8); |
| 108 | } |
| 109 | } |
| 110 | //use Perl2UCS or UCSExt encountered : |
| 111 | //initialize UCS, this has to be terminated when the script finishes execution |
| 112 | //Is the script intending to use UCS Extensions? |
| 113 | //This should be done once per script execution |
| 114 | if ((strcmp(mod_name,"Perl2UCS.nlm")==0) || (strcmp(mod_name,"UCSExt.nlm")==0)) |
| 115 | { |
| 116 | unsigned int moduleHandle = 0; |
| 117 | moduleHandle = FindNLMHandle("UCSCORE.NLM"); |
| 118 | if (moduleHandle) |
| 119 | { |
| 120 | PFUCSINITIALIZE ucsinit = (PFUCSINITIALIZE)ImportSymbol(moduleHandle,"UCSInitialize"); |
| 121 | if (ucsinit!=NULL) |
| 122 | (*ucsinit)(); |
| 123 | } |
| 124 | } |
| 125 | |
| 126 | DLDEBUG(2,PerlIO_printf(Perl_debug_log," libref=%x\n", nlmHandle)); |
| 127 | ST(0) = sv_newmortal() ; |
| 128 | if (nlmHandle == NULL) |
| 129 | //SaveError(aTHX_ "load_file:%s", |
| 130 | // OS_Error_String(aTHX)) ; |
| 131 | ConsolePrintf("load_file error : %s\n", mod_name8); |
| 132 | else |
| 133 | sv_setiv( ST(0), (IV)nlmHandle); |
| 134 | } |
| 135 | } |
| 136 | free(buffer); |
| 137 | |
| 138 | |
| 139 | } |
| 140 | |
| 141 | void * |
| 142 | dl_find_symbol(libhandle, symbolname) |
| 143 | void * libhandle |
| 144 | char * symbolname |
| 145 | CODE: |
| 146 | DLDEBUG(2,PerlIO_printf(Perl_debug_log,"dl_find_symbol(handle=%x, symbol=%s)\n", |
| 147 | libhandle, symbolname)); |
| 148 | |
| 149 | //import the symbol that the dynaloader is asking for. |
| 150 | RETVAL = (void *)ImportSymbol((int)libhandle, symbolname); |
| 151 | |
| 152 | DLDEBUG(2,PerlIO_printf(Perl_debug_log," symbolref = %x\n", RETVAL)); |
| 153 | ST(0) = sv_newmortal() ; |
| 154 | if (RETVAL == NULL) |
| 155 | //SaveError(aTHX_ "find_symbol:%s", |
| 156 | // OS_Error_String(aTHX)) ; |
| 157 | ConsolePrintf("find_symbol error \n"); |
| 158 | else |
| 159 | sv_setiv( ST(0), (IV)RETVAL); |
| 160 | |
| 161 | void |
| 162 | dl_undef_symbols() |
| 163 | PPCODE: |
| 164 | |
| 165 | |
| 166 | # These functions should not need changing on any platform: |
| 167 | |
| 168 | void |
| 169 | dl_install_xsub(perl_name, symref, filename="$Package") |
| 170 | char * perl_name |
| 171 | void * symref |
| 172 | char * filename |
| 173 | CODE: |
| 174 | DLDEBUG(2,PerlIO_printf(Perl_debug_log,"dl_install_xsub(name=%s, symref=%x)\n", |
| 175 | perl_name, symref)); |
| 176 | ST(0) = sv_2mortal(newRV((SV*)newXS(perl_name, |
| 177 | (void(*)(pTHX_ CV *))symref, |
| 178 | filename))); |
| 179 | |
| 180 | |
| 181 | char * |
| 182 | dl_error() |
| 183 | CODE: |
| 184 | dMY_CXT; |
| 185 | RETVAL = dl_last_error ; |
| 186 | OUTPUT: |
| 187 | RETVAL |
| 188 | |
| 189 | # end. |
| 190 | |
| 191 | |