diff options
Diffstat (limited to 'generic/tclLoadNone.c')
| -rw-r--r-- | generic/tclLoadNone.c | 152 |
1 files changed, 73 insertions, 79 deletions
diff --git a/generic/tclLoadNone.c b/generic/tclLoadNone.c index 4507b06..6af5c4f 100644 --- a/generic/tclLoadNone.c +++ b/generic/tclLoadNone.c @@ -1,16 +1,13 @@ -/* +/* * 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. + * This procedure provides a version of the TclpDlopen 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 $ + * See the file "license.terms" for information on usage and redistribution of + * this file, and for a DISCLAIMER OF ALL WARRANTIES. */ #include "tclInt.h" @@ -20,13 +17,13 @@ * * 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). + * 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. + * The result is TCL_ERROR, and an error message is left in the interp's + * result. * * Side effects: * None. @@ -35,61 +32,40 @@ */ int -TclpDlopen(interp, pathPtr, loadHandle, unloadProcPtr) - Tcl_Interp *interp; /* Used for error reporting. */ - Tcl_Obj *pathPtr; /* Name of the file containing the desired +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 + Tcl_LoadHandle *loadHandle, /* Filled with token for dynamically loaded + * file which will be passed back to * (*unloadProcPtr)() to unload the file. */ - Tcl_FSUnloadFileProc **unloadProcPtr; + Tcl_FSUnloadFileProc **unloadProcPtr, /* Filled with address of Tcl_FSUnloadFileProc - * function which should be used for - * this file. */ + * function which should be used for this + * file. */ + int flags) { - Tcl_SetResult(interp, - "dynamic loading is not currently available on this system", - TCL_STATIC); + if (interp) { + Tcl_SetObjResult(interp, Tcl_NewStringObj( + "dynamic loading is not currently available on this system", + -1)); + } 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. + * 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. + * 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. @@ -98,38 +74,56 @@ TclpFindSymbol(interp, loadHandle, symbol) */ int -TclGuessPackageName(fileName, bufPtr) - CONST char *fileName; /* Name of file containing package (already +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. */ + 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. - * - *---------------------------------------------------------------------- + * 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. */ -void -TclpUnloadFile(loadHandle) - Tcl_LoadHandle loadHandle; /* loadHandle returned by a previous call - * to TclpDlopen(). The loadHandle is - * a token that represents the loaded - * file. */ +#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 */ + int flags) + /* Dummy: unused by this implementation */ +{ + if (interp) { + Tcl_SetObjResult(interp, Tcl_NewStringObj("dynamic loading from memory " + "is not available on this system", -1)); + } + return TCL_ERROR; } + +#endif /* TCL_LOAD_FROM_MEMORY */ + +/* + * Local Variables: + * mode: c + * c-basic-offset: 4 + * fill-column: 78 + * End: + */ |