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* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
*/
#include "tclInt.h"
#include <mach-o/rld.h>
#include <streams/streams.h>
/* Static procedures defined within this file */
Tcl_LoadHandle loadHandle, const char* symbol);
static void UnloadFile(Tcl_LoadHandle loadHandle);
/*
*----------------------------------------------------------------------
*
* TclpDlopen --
*
* Dynamically loads a binary code file into memory and returns a handle
* to the new code.
*
* Results:
* A standard Tcl completion code. If an error occurs, an error message
* is left in the interp's result.
*
* Side effects:
* New code suddenly appears in memory.
*
*----------------------------------------------------------------------
*/
int
TclpDlopen(
Tcl_Interp *interp, /* Used for error reporting. */
Tcl_Obj *pathPtr, /* Name of the file containing the desired
* code (UTF-8). */
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* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
*/
#include "tclInt.h"
#include <mach-o/rld.h>
#include <streams/streams.h>
/*
* Static procedures defined within this file.
*/
static void * FindSymbol(Tcl_Interp *interp,
Tcl_LoadHandle loadHandle, const char *symbol);
static void UnloadFile(Tcl_LoadHandle loadHandle);
/*
*---------------------------------------------------------------------------
*
* TclpDlopen --
*
* Dynamically loads a binary code file into memory and returns a handle
* to the new code.
*
* Results:
* A standard Tcl completion code. If an error occurs, an error message
* is left in the interp's result.
*
* Side effects:
* New code suddenly appears in memory.
*
*---------------------------------------------------------------------------
*/
int
TclpDlopen(
Tcl_Interp *interp, /* Used for error reporting. */
Tcl_Obj *pathPtr, /* Name of the file containing the desired
* code (UTF-8). */
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result = rld_load(errorStream, &header, files, NULL);
if (!result) {
/*
* Let the OS loader examine the binary search path for whatever
* string the user gave us which hopefully refers to a file on the
* binary path
*/
Tcl_DString ds;
native = Tcl_UtfToExternalDString(NULL, fileName, TCL_INDEX_NONE, &ds);
files = {native,NULL};
result = rld_load(errorStream, &header, files, NULL);
Tcl_DStringFree(&ds);
}
if (!result) {
char *data;
int len, maxlen;
NXGetMemoryBuffer(errorStream, &data, &len, &maxlen);
Tcl_SetObjResult(interp, Tcl_ObjPrintf(
"couldn't load file \"%s\": %s", fileName, data));
NXCloseMemory(errorStream, NX_FREEBUFFER);
return TCL_ERROR;
}
NXCloseMemory(errorStream, NX_FREEBUFFER);
newHandle = (Tcl_LoadHandle) Tcl_Alloc(sizeof(*newHandle));
newHandle->clientData = INT2PTR(1);
newHandle->findSymbolProcPtr = &FindSymbol;
newHandle->unloadFileProcPtr = &UnloadFile;
*loadHandle = newHandle;
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result = rld_load(errorStream, &header, files, NULL);
if (!result) {
/*
* Let the OS loader examine the binary search path for whatever
* string the user gave us which hopefully refers to a file on the
* binary path.
*/
Tcl_DString ds;
if (Tcl_UtfToExternalDStringEx(interp, NULL, fileName, TCL_INDEX_NONE, 0, &ds, NULL) != TCL_OK) {
Tcl_DStringFree(&ds);
return TCL_ERROR;
}
native = Tcl_DStringValue(&ds);
files = {native,NULL};
result = rld_load(errorStream, &header, files, NULL);
Tcl_DStringFree(&ds);
}
if (!result) {
char *data;
int len, maxlen;
NXGetMemoryBuffer(errorStream, &data, &len, &maxlen);
Tcl_SetObjResult(interp, Tcl_ObjPrintf(
"couldn't load file \"%s\": %s", fileName, data));
NXCloseMemory(errorStream, NX_FREEBUFFER);
return TCL_ERROR;
}
NXCloseMemory(errorStream, NX_FREEBUFFER);
newHandle = (Tcl_LoadHandle)Tcl_Alloc(sizeof(*newHandle));
newHandle->clientData = INT2PTR(1);
newHandle->findSymbolProcPtr = &FindSymbol;
newHandle->unloadFileProcPtr = &UnloadFile;
*unloadProcPtr = &UnloadFile;
*loadHandle = newHandle;
return TCL_OK;
}
/*
*----------------------------------------------------------------------
*
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*
* Side effects:
* Does nothing. Can anything be done?
*
*----------------------------------------------------------------------
*/
void
UnloadFile(
Tcl_LoadHandle loadHandle) /* loadHandle returned by a previous call to
* TclpDlopen(). The loadHandle is a token
* that represents the loaded file. */
{
Tcl_Free(loadHandle);
}
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*
* Side effects:
* Does nothing. Can anything be done?
*
*----------------------------------------------------------------------
*/
static void
UnloadFile(
Tcl_LoadHandle loadHandle) /* loadHandle returned by a previous call to
* TclpDlopen(). The loadHandle is a token
* that represents the loaded file. */
{
Tcl_Free(loadHandle);
}
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