diff options
Diffstat (limited to 'unix/tclLoadShl.c')
| -rw-r--r-- | unix/tclLoadShl.c | 46 |
1 files changed, 32 insertions, 14 deletions
diff --git a/unix/tclLoadShl.c b/unix/tclLoadShl.c index 80ef7b5..a690dac 100644 --- a/unix/tclLoadShl.c +++ b/unix/tclLoadShl.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: tclLoadShl.c,v 1.16 2005/11/11 23:46:34 dkf Exp $ + * RCS: @(#) $Id: tclLoadShl.c,v 1.20 2010/04/02 21:21:06 kennykb Exp $ */ #include <dl.h> @@ -25,6 +25,14 @@ #include "tclInt.h" +/* Static functions defined within this file */ + +static void* FindSymbol(Tcl_Interp* interp, Tcl_LoadHandle loadHandle, + const char* symbol); +static void +UnloadFile(Tcl_LoadHandle handle); + + /* *---------------------------------------------------------------------- * @@ -57,7 +65,8 @@ TclpDlopen( * file. */ { shl_t handle; - CONST char *native; + Tcl_LoadHandle newHandle; + const char *native; char *fileName = Tcl_GetString(pathPtr); /* @@ -97,15 +106,18 @@ TclpDlopen( Tcl_PosixError(interp), (char *) NULL); return TCL_ERROR; } - *loadHandle = (Tcl_LoadHandle) handle; - *unloadProcPtr = &TclpUnloadFile; + newHandle = (Tcl_LoadHandle) ckalloc(sizeof(*newHandle)); + newHandle->clientData = handle; + newHandle->findSymbolProcPtr = &FindSymbol; + newHandle->unloadFileProcPtr = *unloadProcPtr = &UnloadFile; + *loadHandle = newHandle; return TCL_OK; } /* *---------------------------------------------------------------------- * - * TclpFindSymbol -- + * Tcl_FindSymbol -- * * Looks up a symbol, by name, through a handle associated with a * previously loaded piece of code (shared library). @@ -118,15 +130,15 @@ TclpDlopen( *---------------------------------------------------------------------- */ -Tcl_PackageInitProc * -TclpFindSymbol( +static void* +FindSymbol( Tcl_Interp *interp, Tcl_LoadHandle loadHandle, - CONST char *symbol) + const char *symbol) { Tcl_DString newName; Tcl_PackageInitProc *proc = NULL; - shl_t handle = (shl_t)loadHandle; + shl_t handle = (shl_t)(loadHandle->clientData); /* * Some versions of the HP system software still use "_" at the beginning @@ -144,13 +156,18 @@ TclpFindSymbol( } Tcl_DStringFree(&newName); } + if (proc == NULL && interp != NULL) { + Tcl_ResetResult(interp); + Tcl_AppendResult(interp, "cannot find symbol\"", symbol, + "\": ", Tcl_PosixError(interp), NULL); + } return proc; } /* *---------------------------------------------------------------------- * - * TclpUnloadFile -- + * UnloadFile -- * * Unloads a dynamically loaded binary code file from memory. Code * pointers in the formerly loaded file are no longer valid after calling @@ -165,16 +182,17 @@ TclpFindSymbol( *---------------------------------------------------------------------- */ -void -TclpUnloadFile( +static void +UnloadFile( Tcl_LoadHandle loadHandle) /* loadHandle returned by a previous call to * TclpDlopen(). The loadHandle is a token * that represents the loaded file. */ { shl_t handle; - handle = (shl_t) loadHandle; + handle = (shl_t) (loadHandle -> clientData); shl_unload(handle); + ckfree((char*) loadHandle); } /* @@ -199,7 +217,7 @@ TclpUnloadFile( int TclGuessPackageName( - CONST char *fileName, /* Name of file containing package (already + 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. */ |