diff options
Diffstat (limited to 'unix/tclLoadDld.c')
| -rw-r--r-- | unix/tclLoadDld.c | 110 |
1 files changed, 59 insertions, 51 deletions
diff --git a/unix/tclLoadDld.c b/unix/tclLoadDld.c index bc9bc8e..fe2f8fc 100644 --- a/unix/tclLoadDld.c +++ b/unix/tclLoadDld.c @@ -1,26 +1,26 @@ -/* +/* * tclLoadDld.c -- * - * This procedure provides a version of the TclLoadFile that - * works with the "dld_link" and "dld_get_func" library procedures - * for dynamic loading. It has been tested on Linux 1.1.95 and - * dld-3.2.7. This file probably isn't needed anymore, since it - * makes more sense to use "dl_open" etc. + * This procedure provides a version of the TclLoadFile that works with + * the "dld_link" and "dld_get_func" library procedures for dynamic + * loading. It has been tested on Linux 1.1.95 and dld-3.2.7. This file + * probably isn't needed anymore, since it makes more sense to use + * "dl_open" etc. * * 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. * - * RCS: @(#) $Id: tclLoadDld.c,v 1.12 2002/10/10 12:25:53 vincentdarley Exp $ + * RCS: @(#) $Id: tclLoadDld.c,v 1.13 2005/07/19 13:37:18 dkf Exp $ */ #include "tclInt.h" #include "dld.h" /* - * In some systems, like SunOS 4.1.3, the RTLD_NOW flag isn't defined - * and this argument to dlopen must always be 1. + * In some systems, like SunOS 4.1.3, the RTLD_NOW flag isn't defined and this + * argument to dlopen must always be 1. */ #ifndef RTLD_NOW @@ -32,12 +32,12 @@ * * TclpDlopen -- * - * Dynamically loads a binary code file into memory and returns - * a handle to the new code. + * 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. + * 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. @@ -51,21 +51,21 @@ TclpDlopen(interp, pathPtr, loadHandle, unloadProcPtr) 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 + * 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. */ { static int firstTime = 1; int returnCode; char *fileName; CONST char *native; - + /* - * The dld package needs to know the pathname to the tcl binary. - * If that's not known, return an error. + * The dld package needs to know the pathname to the tcl binary. If + * that's not known, return an error. */ if (firstTime) { @@ -87,14 +87,15 @@ TclpDlopen(interp, pathPtr, loadHandle, unloadProcPtr) fileName = Tcl_GetString(pathPtr); - /* - * First try the full path the user gave us. This is particularly - * important if the cwd is inside a vfs, and we are trying to load - * using a relative path. + /* + * First try the full path the user gave us. This is particularly + * important if the cwd is inside a vfs, and we are trying to load using a + * relative path. */ + native = Tcl_FSGetNativePath(pathPtr); returnCode = dld_link(native); - + if (returnCode != 0) { Tcl_DString ds; native = Tcl_UtfToExternalDString(NULL, fileName, -1, &ds); @@ -103,9 +104,8 @@ TclpDlopen(interp, pathPtr, loadHandle, unloadProcPtr) } if (returnCode != 0) { - Tcl_AppendResult(interp, "couldn't load file \"", - fileName, "\": ", - dld_strerror(returnCode), (char *) NULL); + Tcl_AppendResult(interp, "couldn't load file \"", fileName, "\": ", + dld_strerror(returnCode), (char *) NULL); return TCL_ERROR; } *loadHandle = (Tcl_LoadHandle) strcpy( @@ -119,18 +119,19 @@ 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). * * 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) +TclpFindSymbol(interp, loadHandle, symbol) Tcl_Interp *interp; Tcl_LoadHandle loadHandle; CONST char *symbol; @@ -143,9 +144,9 @@ TclpFindSymbol(interp, loadHandle, symbol) * * TclpUnloadFile -- * - * Unloads a dynamically loaded binary code file from memory. - * Code pointers in the formerly loaded file are no longer valid - * after calling this function. + * Unloads a dynamically loaded binary code file from memory. Code + * pointers in the formerly loaded file are no longer valid after calling + * this function. * * Results: * None. @@ -158,10 +159,9 @@ TclpFindSymbol(interp, loadHandle, symbol) void TclpUnloadFile(loadHandle) - Tcl_LoadHandle loadHandle; /* loadHandle returned by a previous call - * to TclpDlopen(). The loadHandle is - * a token that represents the loaded - * file. */ + Tcl_LoadHandle loadHandle; /* loadHandle returned by a previous call to + * TclpDlopen(). The loadHandle is a token + * that represents the loaded file. */ { char *fileName; @@ -175,14 +175,14 @@ TclpUnloadFile(loadHandle) * * 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. @@ -194,8 +194,16 @@ int TclGuessPackageName(fileName, bufPtr) 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; } + +/* + * Local Variables: + * mode: c + * c-basic-offset: 4 + * fill-column: 78 + * End: + */ |