void Rivet_PerInterpInit()

in src/mod_rivet_ng/mod_rivet_common.c [233:320]

• 43 lines of code
• 5 McCabe index (conditional complexity)

void Rivet_PerInterpInit(rivet_thread_interp* interp_obj,
						 rivet_thread_private* private,
						 server_rec *s,
						 apr_pool_t *p)
{
    rivet_interp_globals*   globals     = NULL;
    Tcl_Obj*                auto_path   = NULL;
    Tcl_Obj*                rivet_tcl   = NULL;
    Tcl_Interp*             interp      = interp_obj->interp;

    ap_assert (interp != (Tcl_Interp *)NULL);
    Tcl_Preserve (interp);

    /* Set up interpreter associated data */

    globals = ckalloc(sizeof(rivet_interp_globals));
    Tcl_SetAssocData (interp,"rivet",NULL,globals);

    /*
     * we store in the globals some information relevant to
     * the embedded interpreter work
     */

    /* the ::rivet namespace is created */

    globals->rivet_ns = Tcl_CreateNamespace (interp,RIVET_NS,NULL,
                                            (Tcl_NamespaceDeleteProc *)NULL);

    /* We put in front the auto_path list the path to the directory where
     * init.tcl is located (provides package Rivet, previously RivetTcl)
     */

    auto_path = Tcl_GetVar2Ex(interp,"auto_path",NULL,TCL_GLOBAL_ONLY);

    rivet_tcl = Tcl_NewStringObj(RIVET_DIR,-1);
    Tcl_IncrRefCount(rivet_tcl);

    if (Tcl_IsShared(auto_path)) {
        auto_path = Tcl_DuplicateObj(auto_path);
    }

    if (Tcl_ListObjReplace(interp,auto_path,0,0,1,&rivet_tcl) == TCL_ERROR)
    {
        ap_log_error(APLOG_MARK, APLOG_ERR, APR_EGENERAL, s,
                     MODNAME ": error setting auto_path: %s",
                     Tcl_GetStringFromObj(auto_path,NULL));
    } else {
        Tcl_SetVar2Ex(interp,"auto_path",NULL,auto_path,TCL_GLOBAL_ONLY);
    }

    Tcl_DecrRefCount(rivet_tcl);

    /* If the thread has private data we stuff the server conf
     * pointer in the 'running_conf' field.
     * Commands running ouside a request processing must figure out
     * themselves how get a pointer to the configuration from the
     * context (e.g. ::rivet::inspect)
     */

    if (private != NULL) private->running_conf = RIVET_SERVER_CONF (s->module_config);

    /* Initialize the interpreter with Rivet's Tcl commands. */
    Rivet_InitCore(interp,private);

    /* Create a global array with information about the server. */
    Rivet_InitServerVariables(interp,p);

    /* Eval Rivet's init.tcl file to load in the Tcl-level commands. */

    /* Watch out! Calling Tcl_PkgRequire with a version number binds this module to
     * the Rivet package revision number in rivet/init.tcl
     *
     * RIVET_TCL_PACKAGE_VERSION is defined by configure.ac as the combination
     * "MAJOR_VERSION.MINOR_VERSION". We don't expect to change rivet/init.tcl
     * across patchlevel releases
     */

    if (Tcl_PkgRequire(interp, "Rivet", RIVET_INIT_VERSION, 1) == NULL)
    {
        ap_log_error (APLOG_MARK, APLOG_ERR, APR_EGENERAL, s,
                      MODNAME ": init.tcl must be installed correctly for Apache Rivet to function: %s (%s)",
                      Tcl_GetStringResult(interp), RIVET_DIR );
        exit(1);
    }

    Tcl_Release(interp);
    interp_obj->flags |= RIVET_INTERP_INITIALIZED;
}