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-rw-r--r--generic/tclLoadNone.c136
1 files changed, 89 insertions, 47 deletions
diff --git a/generic/tclLoadNone.c b/generic/tclLoadNone.c
index 4f795aa..af4ca81 100644
--- a/generic/tclLoadNone.c
+++ b/generic/tclLoadNone.c
@@ -1,14 +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 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.
+ * See the file "license.terms" for information on usage and redistribution of
+ * this file, and for a DISCLAIMER OF ALL WARRANTIES.
*/
#include "tclInt.h"
@@ -18,13 +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.
@@ -33,17 +32,17 @@
*/
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. */
{
Tcl_SetResult(interp,
"dynamic loading is not currently available on this system",
@@ -56,21 +55,24 @@ TclpDlopen(interp, pathPtr, loadHandle, unloadProcPtr)
*
* TclpFindSymbol --
*
- * Looks up a symbol, by name, through a handle associated with
- * a previously loaded piece of code (shared library).
+ * 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.
+ * 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;
+
+Tcl_PackageInitProc *
+TclpFindSymbol(
+ Tcl_Interp *interp,
+ Tcl_LoadHandle loadHandle,
+ CONST char *symbol)
{
return NULL;
}
@@ -80,14 +82,14 @@ TclpFindSymbol(interp, loadHandle, symbol)
*
* 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.
@@ -96,11 +98,11 @@ 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;
}
@@ -110,9 +112,9 @@ TclGuessPackageName(fileName, bufPtr)
*
* 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).
+ * 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.
@@ -124,10 +126,50 @@ TclGuessPackageName(fileName, bufPtr)
*/
void
-TclpUnloadFile(loadHandle)
- Tcl_LoadHandle loadHandle; /* loadHandle returned by a previous call
- * to TclpDlopen(). The loadHandle is
- * a token that represents the loaded
- * file. */
+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:
+ */