tclLoadNone.c
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上传日期:2015-12-11
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文件大小:4k
- /*
- * 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.
- *
- * RCS: @(#) $Id: tclLoadNone.c,v 1.11 2002/07/18 16:26:03 vincentdarley Exp $
- */
- #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(interp, pathPtr, loadHandle, unloadProcPtr)
- 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).
- *
- * 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(interp, loadHandle, symbol)
- 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(fileName, bufPtr)
- 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(loadHandle)
- Tcl_LoadHandle loadHandle; /* loadHandle returned by a previous call
- * to TclpDlopen(). The loadHandle is
- * a token that represents the loaded
- * file. */
- {
- }