357 lines
7.4 KiB
C
357 lines
7.4 KiB
C
#define LINT_ARGS
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#include <stdlib.h>
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#include <ctype.h>
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#include <search.h>
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#include <sys\types.h>
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#include <sys\stat.h>
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#include "mbrmake.h"
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#define LONGESTPATH 128
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#define SLASH "\\"
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#define SLASHCHAR '\\'
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#define XSLASHCHAR '/'
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WORD near cAtomsMac; // total number of atoms
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WORD near cModulesMac; // total number of modules
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WORD near cSymbolsMac; // total number of symbols
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static char *tmpl = "XXXXXX";
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extern WORD HashAtomStr (char *);
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// rjsa LPCH GetAtomStr (VA vaSym);
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void
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SeekError (char *pfilenm)
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// couldn't seek to position ... emit error message
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//
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{
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Error(ERR_SEEK_FAILED, pfilenm);
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}
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void
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ReadError (char *pfilenm)
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// couldn't read from file... emit error message
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//
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{
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Error(ERR_READ_FAILED, pfilenm);
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}
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void
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WriteError (char *pfilenm)
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// couldn't write to file ... emit error message
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//
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{
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Error(ERR_WRITE_FAILED, pfilenm);
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}
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void
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FindTmp (char *pbuf) /* copy TMP path to pbuf if exists */
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//
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//
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{
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char ebuf[LONGESTPATH];
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char *env = ebuf;
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*pbuf = '\0';
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*env = '\0';
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// if (!(env = getenv("TMP")))
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if (!(env = getenvOem("TMP")))
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return; /* no path, return */
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// env = strncpy(ebuf, env, LONGESTPATH-1);
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strncpy(ebuf, env, LONGESTPATH-1);
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free( env );
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env = ebuf;
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ebuf[LONGESTPATH-1] = '\0';
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if (!( env = ebuf ) )
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return;
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env = ebuf + strcspn(ebuf, ";");
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if (*env == ';')
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*env = '\0';
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if (env != ebuf) {
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env--;
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if (*env != SLASHCHAR
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&& *env != XSLASHCHAR)
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strcat(ebuf, SLASH);
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}
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strcpy (pbuf, ebuf);
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}
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char *
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MakTmpFileName (char *pext)
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// Create a temporary file with the extension supplied.
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// returns a pointer to the file name on the heap.
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//
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{
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char ptmpnam[96];
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char btmpl[7];
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char *p;
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strcpy (btmpl, tmpl);
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p = mktemp(btmpl);
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FindTmp (ptmpnam);
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strcat (ptmpnam, p);
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free (p);
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strcat (ptmpnam, pext); /* /tmp/xxxxxx.ext file */
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return (LszDup(ptmpnam));
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}
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LSZ
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LszBaseName (LSZ lsz)
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// return the base name part of a path
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//
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{
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LPCH lpch;
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lpch = strrchr(lsz, '\\');
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if (lpch) return lpch+1;
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if (lsz[1] == ':')
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return lsz+2;
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return lsz;
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}
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VA
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VaSearchModule (char *p)
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// search for the named module in the module list
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//
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{
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VA vaMod;
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LSZ lsz, lszBase;
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char buf[PATH_BUF];
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strcpy(buf, ToAbsPath(p, r_cwd));
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lszBase = LszBaseName(buf);
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SetVMClient(VM_SEARCH_MOD);
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vaMod = vaRootMod;
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while (vaMod) {
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gMOD(vaMod);
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lsz = GetAtomStr(cMOD.vaNameSym);
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if (strcmpi(LszBaseName(lsz), lszBase) == 0 &&
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strcmpi(buf,ToAbsPath(lsz, c_cwd)) == 0) {
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SetVMClient(VM_MISC);
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return (vaMod);
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}
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vaMod = cMOD.vaNextMod;
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}
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SetVMClient(VM_MISC);
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return vaNil;
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}
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VA
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VaSearchModuleExact (char *p)
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// search for the named module in the module list -- EXACT match only
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//
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{
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VA vaMod;
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SetVMClient(VM_SEARCH_MOD);
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vaMod = vaRootMod;
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while (vaMod) {
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gMOD(vaMod);
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if (strcmp(p,GetAtomStr(cMOD.vaNameSym)) == 0) {
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SetVMClient(VM_MISC);
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return (vaMod);
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}
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vaMod = cMOD.vaNextMod;
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}
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SetVMClient(VM_MISC);
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return vaNil;
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}
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VA
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VaSearchSymbol (char *pStr)
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// search for the named symbol (not a module!)
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//
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{
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WORD hashid;
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VA vaRootSym, vaSym;
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LSZ lszAtom;
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SetVMClient(VM_SEARCH_SYM);
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vaRootSym = rgVaSym[hashid = HashAtomStr (pStr)];
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if (vaRootSym) {
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vaSym = vaRootSym;
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while (vaSym) {
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gSYM(vaSym);
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lszAtom = gTEXT(cSYM.vaNameText);
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if (strcmp (pStr, lszAtom) == 0) {
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SetVMClient(VM_MISC);
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return (vaSym); // Duplicate entry
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}
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vaSym = cSYM.vaNextSym; // current = next
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}
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}
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SetVMClient(VM_MISC);
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return vaNil;
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}
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LPCH
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GetAtomStr (VA vaSym)
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// Swap in the Atom page for the symbol chain entry pSym
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// Return the atom's address in the page.
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//
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{
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gSYM(vaSym);
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return gTEXT(cSYM.vaNameText);
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}
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VA
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MbrAddAtom (char *pStr, char fFILENM)
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// create a new symbol with the given name
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//
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{
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WORD hashid;
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VA vaSym, vaSymRoot, vaText;
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if (!fFILENM)
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vaSymRoot = rgVaSym[hashid = HashAtomStr (pStr)];
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else
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vaSymRoot = rgVaSym[hashid = MAXSYMPTRTBLSIZ - 1];
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SetVMClient(VM_SEARCH_SYM);
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if (vaSymRoot) {
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vaSym = vaSymRoot;
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while (vaSym) {
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gSYM(vaSym);
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if (!strcmp (pStr, GetAtomStr(vaSym))) {
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#if defined (DEBUG)
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if (OptD & 2)
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printf("MbrAddAtom: duplicate (%s)\n", pStr);
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#endif
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SetVMClient(VM_SEARCH_SYM);
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return (vaSym); // Duplicate entry
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}
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vaSym = cSYM.vaNextSym; // current = next
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}
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}
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// we are now going to have to add the symbol
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if (fFILENM) {
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SetVMClient(VM_ADD_MOD);
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cModulesMac++;
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}
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else {
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SetVMClient(VM_ADD_SYM);
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cSymbolsMac++;
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}
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cAtomsMac++;
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vaSym = VaAllocGrpCb(grpSym, sizeof(SYM));
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vaText = VaAllocGrpCb(grpText, strlen(pStr) + 1);
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gSYM(vaSym);
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cSYM.vaNameText = vaText;
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cSYM.vaNextSym = rgVaSym[hashid];
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pSYM(vaSym);
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rgVaSym[hashid] = vaSym;
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strcpy(gTEXT(vaText), pStr);
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pTEXT(vaText);
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SetVMClient(VM_MISC);
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return (vaSym);
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}
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VA FAR * near rgvaSymSorted;
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// rjsa int CmpSym(VA FAR *lhsym1, VA FAR *lhsym2);
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void
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SortAtoms ()
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// create the "subscript sort" array pointers rgvaSymSorted
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//
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{
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VA vaSym;
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char buf[PATH_BUF];
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WORD i, iSym;
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SetVMClient(VM_SORT_ATOMS);
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rgvaSymSorted = (VA FAR *)LpvAllocCb(cAtomsMac * sizeof(VA));
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iSym = 0;
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for (i=0; i < MAXSYMPTRTBLSIZ; i++) {
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vaSym = rgVaSym[i];
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while (vaSym) {
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gSYM(vaSym);
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rgvaSymSorted[iSym] = cSYM.vaNameText;
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vaSym = cSYM.vaNextSym;
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iSym++;
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}
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}
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// sort symbols
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qsort(rgvaSymSorted, cSymbolsMac, sizeof(VA), CmpSym);
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// the files are in the last hash bucket so they went to the
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// end of this array we just made -- we sort them separately
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// sort files
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qsort(rgvaSymSorted + cSymbolsMac, cModulesMac, sizeof(VA), CmpSym);
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// convert the Page/Atom values back to virtual symbol addresses
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for (i=0; i < cSymbolsMac; i++) {
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strcpy(buf, gTEXT(rgvaSymSorted[i]));
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rgvaSymSorted[i] = VaSearchSymbol(buf);
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}
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for (; i < cAtomsMac; i++) {
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strcpy(buf, gTEXT(rgvaSymSorted[i]));
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#ifdef DEBUG
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if (OptD & 64) printf("Module: %s\n", buf);
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#endif
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rgvaSymSorted[i] = (VaSearchModuleExact(buf), cMOD.vaNameSym);
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}
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}
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int __cdecl
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CmpSym (VA FAR *sym1, VA FAR *sym2)
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// compare two symbols given their pointers
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//
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{
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register char far *lpch1, *lpch2;
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register int cmp;
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lpch1 = gTEXT(*sym1); // LRU will not page out lpch1
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lpch2 = gTEXT(*sym2);
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cmp = strcmpi(lpch1, lpch2);
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if (cmp) return cmp;
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return strcmp(lpch1, lpch2);
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}
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