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StaticPkg





Tcl_StaticPackage(3) Tcl Library Procedures                   7.5



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NAME

Tcl_StaticPackage - make a statically linked package avail- able via the load command

SYNOPSIS

#include <tcl.h> Tcl_StaticPackage(interp, pkgName, initProc, safeInitProc)

ARGUMENTS

Tcl_Interp *interp (in) If not NULL, points to an interpreter into which the package has already been loaded (i.e., the caller has already invoked the appropriate initializa- tion pro- cedure). NULL means the package hasn't yet been incor- porated into any inter- preter. char *pkgName (in) Name of the package; should be properly capitalized (first letter upper-case, all others lower-case). Tcl_PackageInitProc *initProc (in) Procedure to invoke to incorporate this package into a trusted Tcl 1 Tcl_StaticPackage(3) Tcl Library Procedures 7.5 interpreter. Tcl_PackageInitProc *safeInitProc (in) Procedure to call to incorporate this package into a safe interpreter (one that will execute untrusted scripts). NULL means the package can't be used in safe inter- preters. _________________________________________________________________

DESCRIPTION

This procedure may be invoked to announce that a package has been linked statically with a Tcl application and, option- ally, that it has already been loaded into an interpreter. Once Tcl_StaticPackage has been invoked for a package, it may be loaded into interpreters using the load command. Tcl_StaticPackage is normally invoked only by the Tcl_AppInit procedure for the application, not by packages for themselves (Tcl_StaticPackage should only be invoked for statically loaded packages, and code in the package itself should not need to know whether the package is dynamically or statically loaded). When the load command is used later to load the package into an interpreter, one of initProc and safeInitProc will be invoked, depending on whether the target interpreter is safe or not. initProc and safeInitProc must both match the fol- lowing prototype: typedef int Tcl_PackageInitProc(Tcl_Interp *interp); The interp argument identifies the interpreter in which the package is to be loaded. The initialization procedure must return TCL_OK or TCL_ERROR to indicate whether or not it completed successfully; in the event of an error it should set interp->result to point to an error message. The result or error from the initialization procedure will be returned as the result of the load command that caused the initiali- zation procedure to be invoked.

KEYWORDS

initialization procedure, package, static linking Tcl 2 Prepared by Ready-to-Run Software, Inc.

 

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