load internals refactoring

3 files changed, 71 insertions, 15 deletions

diff --git a/generic/tclIOUtil.c b/generic/tclIOUtil.c
index 5b82f7e..c875292 100644
--- a/generic/tclIOUtil.c
+++ b/generic/tclIOUtil.c
@@ -17,7 +17,7 @@
  * See the file "license.terms" for information on usage and redistribution
  * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
  *
- * RCS: @(#) $Id: tclIOUtil.c,v 1.55 2002/07/15 14:16:43 vincentdarley Exp $
+ * RCS: @(#) $Id: tclIOUtil.c,v 1.56 2002/07/17 20:00:44 vincentdarley Exp $
  */
 
 #include "tclInt.h"
@@ -2626,6 +2626,48 @@ Tcl_FSLoadFile(interp, pathPtr, sym1, sym2, proc1Ptr, proc2Ptr,
     Tcl_SetErrno(ENOENT);
     return -1;
 }
+/* 
+ * This function used to be in the platform specific directories, but it
+ * has now been made to work cross-platform
+ */
+int
+TclpLoadFile(interp, pathPtr, sym1, sym2, proc1Ptr, proc2Ptr, 
+	     clientDataPtr, unloadProcPtr)
+    Tcl_Interp *interp;		/* Used for error reporting. */
+    Tcl_Obj *pathPtr;		/* Name of the file containing the desired
+				 * code (UTF-8). */
+    CONST char *sym1, *sym2;	/* Names of two procedures to look up in
+				 * the file's symbol table. */
+    Tcl_PackageInitProc **proc1Ptr, **proc2Ptr;
+				/* Where to return the addresses corresponding
+				 * to sym1 and sym2. */
+    ClientData *clientDataPtr;	/* 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. */
+{
+    TclLoadHandle handle = NULL;
+    int res;
+    
+    res = TclpDlopen(interp, pathPtr, &handle, unloadProcPtr);
+    
+    if (res != TCL_OK) {
+        return res;
+    }
+
+    if (handle == NULL) {
+	return TCL_ERROR;
+    }
+    
+    *clientDataPtr = (ClientData)handle;
+    
+    *proc1Ptr = TclpFindSymbol(interp, handle, sym1);
+    *proc2Ptr = TclpFindSymbol(interp, handle, sym2);
+    return TCL_OK;
+}
 
 /*
  *---------------------------------------------------------------------------
diff --git a/generic/tclInt.h b/generic/tclInt.h
index 3fca93b..ba9ebc3 100644
--- a/generic/tclInt.h
+++ b/generic/tclInt.h
@@ -12,7 +12,7 @@
  * See the file "license.terms" for information on usage and redistribution
  * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
  *
- * RCS: @(#) $Id: tclInt.h,v 1.101 2002/07/17 10:36:23 msofer Exp $
+ * RCS: @(#) $Id: tclInt.h,v 1.102 2002/07/17 20:00:45 vincentdarley Exp $
  */
 
 #ifndef _TCLINT
@@ -1563,7 +1563,8 @@ typedef struct TclFile_ *TclFile;
  * Opaque names for platform specific types.
  */
 
-typedef struct TclpTime_t_ *TclpTime_t;
+typedef struct TclpTime_t_    *TclpTime_t;
+typedef struct TclLoadHandle_ *TclLoadHandle;
 
 /*
  * The "globParameters" argument of the function TclGlob is an
@@ -1829,8 +1830,14 @@ EXTERN void		TclTransferResult _ANSI_ARGS_((Tcl_Interp *sourceInterp,
 			    int result, Tcl_Interp *targetInterp));
 EXTERN Tcl_Obj*         TclpNativeToNormalized 
                             _ANSI_ARGS_((ClientData clientData));
-EXTERN Tcl_Obj*	TclpFilesystemPathType
+EXTERN Tcl_Obj*	        TclpFilesystemPathType
 					_ANSI_ARGS_((Tcl_Obj* pathObjPtr));
+EXTERN Tcl_PackageInitProc* TclpFindSymbol _ANSI_ARGS_((Tcl_Interp *interp,
+			    TclLoadHandle loadHandle, CONST char *symbol));
+EXTERN int              TclpDlopen _ANSI_ARGS_((Tcl_Interp *interp, 
+			    Tcl_Obj *pathPtr, 
+	                    TclLoadHandle *loadHandle, 
+		            Tcl_FSUnloadFileProc **unloadProcPtr));
 
 /*
  *----------------------------------------------------------------
diff --git a/generic/tclLoadNone.c b/generic/tclLoadNone.c
index ee79130..9d93ba1 100644
--- a/generic/tclLoadNone.c
+++ b/generic/tclLoadNone.c
@@ -10,7 +10,7 @@
  * 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 1.8 2002/01/21 22:47:52 davygrvy Exp $
+ * RCS: @(#) $Id: tclLoadNone.c,v 1.9 2002/07/17 20:00:46 vincentdarley Exp $
  */
 
 #include "tclInt.h"
@@ -35,19 +35,17 @@
  */
 
 int
-TclpLoadFile(interp, pathPtr, sym1, sym2, proc1Ptr, proc2Ptr, clientDataPtr, unloadProcPtr)
+TclpDlopen(interp, pathPtr, loadHandle, unloadProcPtr)
     Tcl_Interp *interp;		/* Used for error reporting. */
     Tcl_Obj *pathPtr;		/* Name of the file containing the desired
-				 * code. */
-    CONST char *sym1, *sym2;	/* Names of two procedures to look up in
-				 * the file's symbol table. */
-    Tcl_PackageInitProc **proc1Ptr, **proc2Ptr;
-				/* Where to return the addresses corresponding
-				 * to sym1 and sym2. */
-    ClientData *clientDataPtr;	/* Filled with token for dynamically loaded
+				 * code (UTF-8). */
+    TclLoadHandle *loadHandle;	/* Filled with token for dynamically loaded
 				 * file which will be passed back to 
-				 * TclpUnloadFile() to unload the file. */
-    Tcl_FSUnloadFileProc **unloadProcPtr;
+				 * (*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",
@@ -55,6 +53,15 @@ TclpLoadFile(interp, pathPtr, sym1, sym2, proc1Ptr, proc2Ptr, clientDataPtr, unl
     return TCL_ERROR;
 }
 
+Tcl_PackageInitProc*
+TclpFindSymbol(interp, loadHandle, symbol) 
+    Tcl_Interp *interp;
+    TclLoadHandle loadHandle;
+    CONST char *symbol;
+{
+    return NULL;
+}
+
 /*
  *----------------------------------------------------------------------
  *