#include "tclInt.h"
typedef struct LoadedPackage {
char *fileName;
char *packageName;
Tcl_PackageInitProc *initProc;
Tcl_PackageInitProc *safeInitProc;
struct LoadedPackage *nextPtr;
} LoadedPackage;
static LoadedPackage *firstPackagePtr = NULL;
typedef struct InterpPackage {
LoadedPackage *pkgPtr;
struct InterpPackage *nextPtr;
} InterpPackage;
static void LoadCleanupProc _ANSI_ARGS_((ClientData clientData,
Tcl_Interp *interp));
static void LoadExitProc _ANSI_ARGS_((ClientData clientData));
int
Tcl_LoadCmd(dummy, interp, argc, argv)
ClientData dummy;
Tcl_Interp *interp;
int argc;
char **argv;
{
Tcl_Interp *target;
LoadedPackage *pkgPtr, *defaultPtr;
Tcl_DString pkgName, initName, safeInitName, fileName;
Tcl_PackageInitProc *initProc, *safeInitProc;
InterpPackage *ipFirstPtr, *ipPtr;
int code, c, gotPkgName, namesMatch, filesMatch;
char *p, *fullFileName, *p1, *p2;
if ((argc < 2) || (argc > 4)) {
Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
" fileName ?packageName? ?interp?\"", (char *) NULL);
return TCL_ERROR;
}
fullFileName = Tcl_TranslateFileName(interp, argv[1], &fileName);
if (fullFileName == NULL) {
return TCL_ERROR;
}
Tcl_DStringInit(&pkgName);
Tcl_DStringInit(&initName);
Tcl_DStringInit(&safeInitName);
if ((argc >= 3) && (argv[2][0] != 0)) {
gotPkgName = 1;
} else {
gotPkgName = 0;
}
if ((fullFileName[0] == 0) && !gotPkgName) {
Tcl_SetResult(interp,
"must specify either file name or package name",
TCL_STATIC);
code = TCL_ERROR;
goto done;
}
target = interp;
if (argc == 4) {
target = Tcl_GetSlave(interp, argv[3]);
if (target == NULL) {
Tcl_AppendResult(interp, "couldn't find slave interpreter named \"",
argv[3], "\"", (char *) NULL);
return TCL_ERROR;
}
}
defaultPtr = NULL;
for (pkgPtr = firstPackagePtr; pkgPtr != NULL; pkgPtr = pkgPtr->nextPtr) {
if (!gotPkgName) {
namesMatch = 0;
} else {
namesMatch = 1;
for (p1 = argv[2], p2 = pkgPtr->packageName; ; p1++, p2++) {
if ((isupper(UCHAR(*p1)) ? tolower(UCHAR(*p1)) : *p1)
!= (isupper(UCHAR(*p2)) ? tolower(UCHAR(*p2)) : *p2)) {
namesMatch = 0;
break;
}
if (*p1 == 0) {
break;
}
}
}
filesMatch = (strcmp(pkgPtr->fileName, fullFileName) == 0);
if (filesMatch && (namesMatch || !gotPkgName)) {
break;
}
if (namesMatch && (fullFileName[0] == 0)) {
defaultPtr = pkgPtr;
}
if (filesMatch && !namesMatch && (fullFileName[0] != 0)) {
Tcl_AppendResult(interp, "file \"", fullFileName,
"\" is already loaded for package \"",
pkgPtr->packageName, "\"", (char *) NULL);
code = TCL_ERROR;
goto done;
}
}
if (pkgPtr == NULL) {
pkgPtr = defaultPtr;
}
if (pkgPtr != NULL) {
ipFirstPtr = (InterpPackage *) Tcl_GetAssocData(target, "tclLoad",
(Tcl_InterpDeleteProc **) NULL);
for (ipPtr = ipFirstPtr; ipPtr != NULL; ipPtr = ipPtr->nextPtr) {
if (ipPtr->pkgPtr == pkgPtr) {
code = TCL_OK;
goto done;
}
}
}
if (pkgPtr == NULL) {
if (fullFileName[0] == 0) {
Tcl_AppendResult(interp, "package \"", argv[2],
"\" isn't loaded statically", (char *) NULL);
code = TCL_ERROR;
goto done;
}
if (gotPkgName) {
Tcl_DStringAppend(&pkgName, argv[2], -1);
} else {
if (!TclGuessPackageName(fullFileName, &pkgName)) {
int pargc;
char **pargv, *pkgGuess;
Tcl_SplitPath(fullFileName, &pargc, &pargv);
pkgGuess = pargv[pargc-1];
if ((pkgGuess[0] == 'l') && (pkgGuess[1] == 'i')
&& (pkgGuess[2] == 'b')) {
pkgGuess += 3;
}
for (p = pkgGuess; isalpha(UCHAR(*p)) || (*p == '_'); p++) {
}
if (p == pkgGuess) {
ckfree((char *)pargv);
Tcl_AppendResult(interp,
"couldn't figure out package name for ",
fullFileName, (char *) NULL);
code = TCL_ERROR;
goto done;
}
Tcl_DStringAppend(&pkgName, pkgGuess, (p - pkgGuess));
ckfree((char *)pargv);
}
}
p = Tcl_DStringValue(&pkgName);
c = UCHAR(*p);
if (c != 0) {
if (islower(c)) {
*p = (char) toupper(c);
}
p++;
while (1) {
c = UCHAR(*p);
if (c == 0) {
break;
}
if (isupper(c)) {
*p = (char) tolower(c);
}
p++;
}
}
Tcl_DStringAppend(&initName, Tcl_DStringValue(&pkgName), -1);
Tcl_DStringAppend(&initName, "_Init", 5);
Tcl_DStringAppend(&safeInitName, Tcl_DStringValue(&pkgName), -1);
Tcl_DStringAppend(&safeInitName, "_SafeInit", 9);
code = TclLoadFile(interp, fullFileName, Tcl_DStringValue(&initName),
Tcl_DStringValue(&safeInitName), &initProc, &safeInitProc);
if (code != TCL_OK) {
goto done;
}
if (initProc == NULL) {
Tcl_AppendResult(interp, "couldn't find procedure ",
Tcl_DStringValue(&initName), (char *) NULL);
code = TCL_ERROR;
goto done;
}
if (firstPackagePtr == NULL) {
Tcl_CreateExitHandler(LoadExitProc, (ClientData) NULL);
}
pkgPtr = (LoadedPackage *) ckalloc(sizeof(LoadedPackage));
pkgPtr->fileName = (char *) ckalloc((unsigned)
(strlen(fullFileName) + 1));
strcpy(pkgPtr->fileName, fullFileName);
pkgPtr->packageName = (char *) ckalloc((unsigned)
(Tcl_DStringLength(&pkgName) + 1));
strcpy(pkgPtr->packageName, Tcl_DStringValue(&pkgName));
pkgPtr->initProc = initProc;
pkgPtr->safeInitProc = safeInitProc;
pkgPtr->nextPtr = firstPackagePtr;
firstPackagePtr = pkgPtr;
}
if (Tcl_IsSafe(target)) {
if (pkgPtr->safeInitProc != NULL) {
code = (*pkgPtr->safeInitProc)(target);
} else {
Tcl_AppendResult(interp,
"can't use package in a safe interpreter: ",
"no ", pkgPtr->packageName, "_SafeInit procedure",
(char *) NULL);
code = TCL_ERROR;
goto done;
}
} else {
code = (*pkgPtr->initProc)(target);
}
if ((code == TCL_ERROR) && (target != interp)) {
Tcl_ResetResult(interp);
Tcl_AddErrorInfo(interp, Tcl_GetVar2(target,
"errorInfo", (char *) NULL, TCL_GLOBAL_ONLY));
Tcl_SetVar2(interp, "errorCode", (char *) NULL,
Tcl_GetVar2(target, "errorCode", (char *) NULL,
TCL_GLOBAL_ONLY), TCL_GLOBAL_ONLY);
Tcl_SetResult(interp, target->result, TCL_VOLATILE);
}
if (code == TCL_OK) {
ipFirstPtr = (InterpPackage *) Tcl_GetAssocData(target, "tclLoad",
(Tcl_InterpDeleteProc **) NULL);
ipPtr = (InterpPackage *) ckalloc(sizeof(InterpPackage));
ipPtr->pkgPtr = pkgPtr;
ipPtr->nextPtr = ipFirstPtr;
Tcl_SetAssocData(target, "tclLoad", LoadCleanupProc,
(ClientData) ipPtr);
}
done:
Tcl_DStringFree(&pkgName);
Tcl_DStringFree(&initName);
Tcl_DStringFree(&safeInitName);
Tcl_DStringFree(&fileName);
return code;
}
void
Tcl_StaticPackage(interp, pkgName, initProc, safeInitProc)
Tcl_Interp *interp;
char *pkgName;
Tcl_PackageInitProc *initProc;
Tcl_PackageInitProc *safeInitProc;
{
LoadedPackage *pkgPtr;
InterpPackage *ipPtr, *ipFirstPtr;
for (pkgPtr = firstPackagePtr; pkgPtr != NULL; pkgPtr = pkgPtr->nextPtr) {
if ((pkgPtr->initProc == initProc)
&& (pkgPtr->safeInitProc == safeInitProc)
&& (strcmp(pkgPtr->packageName, pkgName) == 0)) {
return;
}
}
if (firstPackagePtr == NULL) {
Tcl_CreateExitHandler(LoadExitProc, (ClientData) NULL);
}
pkgPtr = (LoadedPackage *) ckalloc(sizeof(LoadedPackage));
pkgPtr->fileName = (char *) ckalloc((unsigned) 1);
pkgPtr->fileName[0] = 0;
pkgPtr->packageName = (char *) ckalloc((unsigned)
(strlen(pkgName) + 1));
strcpy(pkgPtr->packageName, pkgName);
pkgPtr->initProc = initProc;
pkgPtr->safeInitProc = safeInitProc;
pkgPtr->nextPtr = firstPackagePtr;
firstPackagePtr = pkgPtr;
if (interp != NULL) {
ipFirstPtr = (InterpPackage *) Tcl_GetAssocData(interp, "tclLoad",
(Tcl_InterpDeleteProc **) NULL);
ipPtr = (InterpPackage *) ckalloc(sizeof(InterpPackage));
ipPtr->pkgPtr = pkgPtr;
ipPtr->nextPtr = ipFirstPtr;
Tcl_SetAssocData(interp, "tclLoad", LoadCleanupProc,
(ClientData) ipPtr);
}
}
int
TclGetLoadedPackages(interp, targetName)
Tcl_Interp *interp;
char *targetName;
{
Tcl_Interp *target;
LoadedPackage *pkgPtr;
InterpPackage *ipPtr;
char *prefix;
if (targetName == NULL) {
prefix = "{";
for (pkgPtr = firstPackagePtr; pkgPtr != NULL;
pkgPtr = pkgPtr->nextPtr) {
Tcl_AppendResult(interp, prefix, (char *) NULL);
Tcl_AppendElement(interp, pkgPtr->fileName);
Tcl_AppendElement(interp, pkgPtr->packageName);
Tcl_AppendResult(interp, "}", (char *) NULL);
prefix = " {";
}
return TCL_OK;
}
target = Tcl_GetSlave(interp, targetName);
if (target == NULL) {
Tcl_AppendResult(interp, "couldn't find slave interpreter named \"",
targetName, "\"", (char *) NULL);
return TCL_ERROR;
}
ipPtr = (InterpPackage *) Tcl_GetAssocData(target, "tclLoad",
(Tcl_InterpDeleteProc **) NULL);
prefix = "{";
for ( ; ipPtr != NULL; ipPtr = ipPtr->nextPtr) {
pkgPtr = ipPtr->pkgPtr;
Tcl_AppendResult(interp, prefix, (char *) NULL);
Tcl_AppendElement(interp, pkgPtr->fileName);
Tcl_AppendElement(interp, pkgPtr->packageName);
Tcl_AppendResult(interp, "}", (char *) NULL);
prefix = " {";
}
return TCL_OK;
}
static void
LoadCleanupProc(clientData, interp)
ClientData clientData;
Tcl_Interp *interp;
{
InterpPackage *ipPtr, *nextPtr;
ipPtr = (InterpPackage *) clientData;
while (ipPtr != NULL) {
nextPtr = ipPtr->nextPtr;
ckfree((char *) ipPtr);
ipPtr = nextPtr;
}
}
static void
LoadExitProc(clientData)
ClientData clientData;
{
LoadedPackage *pkgPtr;
while (firstPackagePtr != NULL) {
pkgPtr = firstPackagePtr;
firstPackagePtr = pkgPtr->nextPtr;
ckfree(pkgPtr->fileName);
ckfree(pkgPtr->packageName);
ckfree((char *) pkgPtr);
}
}