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/*
* tclLoadNone.c --
*
* This procedure provides a version of the TclLoadFile for use in
* systems that don't support dynamic loading; it just returns an error.
*
* Copyright (c) 1995-1997 Sun Microsystems, Inc.
*
* See the file "license.terms" for information on usage and redistribution of
* this file, and for a DISCLAIMER OF ALL WARRANTIES.
*/
#include "tclInt.h"
/*
*----------------------------------------------------------------------
*
* TclpDlopen --
*
* This procedure is called to carry out dynamic loading of binary code;
* it is intended for use only on systems that don't support dynamic
* loading (it returns an error).
*
* Results:
* The result is TCL_ERROR, and an error message is left in the interp's
* result.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
int
TclpDlopen(
Tcl_Interp *interp, /* Used for error reporting. */
Tcl_Obj *pathPtr, /* Name of the file containing the desired
* code (UTF-8). */
Tcl_LoadHandle *loadHandle, /* Filled with token for dynamically loaded
* file which will be passed back to
* (*unloadProcPtr)() to unload the file. */
Tcl_FSUnloadFileProc **unloadProcPtr)
/* Filled with address of Tcl_FSUnloadFileProc
* function which should be used for this
* file. */
{
Tcl_SetResult(interp,
"dynamic loading is not currently available on this system",
TCL_STATIC);
return TCL_ERROR;
}
/*
*----------------------------------------------------------------------
*
* TclpFindSymbol --
*
* Looks up a symbol, by name, through a handle associated with a
* previously loaded piece of code (shared library). This version of this
* routine should never be called because the associated TclpDlopen()
* function always returns an error.
*
* Results:
* Returns a pointer to the function associated with 'symbol' if it is
* found. Otherwise returns NULL and may leave an error message in the
* interp's result.
*
*----------------------------------------------------------------------
*/
Tcl_PackageInitProc *
TclpFindSymbol(
Tcl_Interp *interp,
Tcl_LoadHandle loadHandle,
CONST char *symbol)
{
return NULL;
}
/*
*----------------------------------------------------------------------
*
* TclGuessPackageName --
*
* If the "load" command is invoked without providing a package name,
* this procedure is invoked to try to figure it out.
*
* Results:
* Always returns 0 to indicate that we couldn't figure out a package
* name; generic code will then try to guess the package from the file
* name. A return value of 1 would have meant that we figured out the
* package name and put it in bufPtr.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
int
TclGuessPackageName(
CONST char *fileName, /* Name of file containing package (already
* translated to local form if needed). */
Tcl_DString *bufPtr) /* Initialized empty dstring. Append package
* name to this if possible. */
{
return 0;
}
/*
*----------------------------------------------------------------------
*
* TclpUnloadFile --
*
* This procedure is called to carry out dynamic unloading of binary code;
* it is intended for use only on systems that don't support dynamic
* loading (it does nothing).
*
* Results:
* None.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
void
TclpUnloadFile(
Tcl_LoadHandle loadHandle) /* loadHandle returned by a previous call to
* TclpDlopen(). The loadHandle is a token
* that represents the loaded file. */
{
}
/*
* These functions are fallbacks if we somehow determine that the platform can
* do loading from memory but the user wishes to disable it. They just report
* (gracefully) that they fail.
*/
#ifdef TCL_LOAD_FROM_MEMORY
MODULE_SCOPE void *
TclpLoadMemoryGetBuffer(
Tcl_Interp *interp, /* Dummy: unused by this implementation */
int size) /* Dummy: unused by this implementation */
{
return NULL;
}
MODULE_SCOPE int
TclpLoadMemory(
Tcl_Interp *interp, /* Used for error reporting. */
void *buffer, /* Dummy: unused by this implementation */
int size, /* Dummy: unused by this implementation */
int codeSize, /* Dummy: unused by this implementation */
Tcl_LoadHandle *loadHandle, /* Dummy: unused by this implementation */
Tcl_FSUnloadFileProc **unloadProcPtr)
/* Dummy: unused by this implementation */
{
Tcl_SetResult(interp, "dynamic loading from memory is not available "
"on this system", TCL_STATIC);
return TCL_ERROR;
}
#endif /* TCL_LOAD_FROM_MEMORY */
/*
* Local Variables:
* mode: c
* c-basic-offset: 4
* fill-column: 78
* End:
*/
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