<br />
<b>Warning</b>:  mysqli::__construct(): (HY000/1203): User howardkn already has more than 'max_user_connections' active connections in <b>D:\Inetpub\vhosts\howardknight.net\al.howardknight.net\includes\artfuncs.php</b> on line <b>21</b><br />
Failed to connect to MySQL: (1203) User howardkn already has more than 'max_user_connections' active connectionsPath: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail
From: aotto1968 <aotto1968@t-online.de>
Newsgroups: comp.lang.tcl
Subject: Nice example about the "inefficiently" of the tcl "c" api.
Date: Fri, 6 Sep 2024 22:36:27 +0200
Organization: A noiseless patient Spider
Lines: 75
Message-ID: <vbfp4d$utpf$1@dont-email.me>
References: <v9ggb7$2dcu$1@dont-email.me>
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 7bit
Injection-Date: Fri, 06 Sep 2024 22:36:30 +0200 (CEST)
Injection-Info: dont-email.me; posting-host="4263aaf3b0413c1000797201802cbbc6";
	logging-data="1013551"; mail-complaints-to="abuse@eternal-september.org";	posting-account="U2FsdGVkX18MgXA4sGLCW3Mha8TclzIiFy8b/v+cdbU="
User-Agent: Mozilla Thunderbird
Cancel-Lock: sha1:9iulK3SoOX5+MMW3mVc/NlLkWds=
In-Reply-To: <v9ggb7$2dcu$1@dont-email.me>
Content-Language: en-US
Bytes: 3040


Down is the "C" code of the C-Function to test the an "object" to be valid.

1. in "python"

bool MK(TestObject) (
   PyObject      * pyO,
   PyTypeObject  * typeO,
   MK_OBJ        * objP,
   MkTestClassE  * flagP
) {
   MkTestClassE flag = MkTestClassE_NONE_OBJECT;
   MK_OBJ obj = NULL;
   if (pyO == Py_None)   {
     flag=MkTestClassE_NULL; goto end;
   }
   if (!PyObject_TypeCheck(pyO,typeO))   {
     flag=MkTestClassE_WRONG_CLASS; goto end;
   }
   MK_MNG      objM = VAL2MNG(pyO);
   if (objM == NULL)   { flag=MkTestClassE_NULL     ; goto end; };
   obj = MkObj(objM);
   if (obj == NULL)    { flag=MkTestClassE_INVALID_SIGNATURE  ; goto end; };
   flag = MkTestClassE_OK;
end:
   if (flagP)  *flagP = flag;
   if (objP)   *objP = obj;
   switch(flag) {
     case MkTestClassE_NONE_OBJECT : return false;
     default                       : return true;
   }
}

2. same in "Tcl"

( tcl "C"-Api has "no" function to test if an object has an "given" type etc. )

bool MK(TestObject) (
   OT_Prefix_ARGS
   Tcl_Obj       * tclO,
   MK_OBJ        * objP,
   MkTestClassE  * flagP
) {
   MkTestClassE flag = MkTestClassE_NONE_OBJECT;

   int len=0;
   MK_STRN str = Tcl_GetStringFromObj(tclO,&len);
   if (len == 0 || MkStringIsNULL(MkStringCreate(len,str))) {
     flag=MkTestClassE_NULL; goto end;
   }

   Tcl_Object tclObj = Tcl_GetObjectFromObj (interp, tclO);
   if (tclObj == NULL)   {
     Tcl_ResetResult(interp);
     flag=MkTestClassE_NONE_OBJECT; goto end;
   };

   objM = Tcl_ObjectGetMetadata(tclObj, &MK(AtomMeta));
   /* NULL or wrong class etc */
   if (objM == NULL)   { flag=MkTestClassE_NULL     ; goto end; };

   objM = MkObj(objM);
   if (objM == NULL)   { flag=MkTestClassE_INVALID_SIGNATURE  ; goto end; };

   flag = MkTestClassE_OK;
   if (objP)   *objP = objM;

end:
   if (flagP)  *flagP = flag;
   switch(flag) {
     case MkTestClassE_NONE_OBJECT : return false;
     default                       : return true;
   }
}