/*----------------------------------------------------------------------------*/
/* */
/* Copyright (c) 1995, 2004 IBM Corporation. All rights reserved. */
/* Copyright (c) 2005-2009 Rexx Language Association. All rights reserved. */
/* */
/* This program and the accompanying materials are made available under */
/* the terms of the Common Public License v1.0 which accompanies this */
/* distribution. A copy is also available at the following address: */
/* http://www.oorexx.org/license.html */
/* */
/* Redistribution and use in source and binary forms, with or */
/* without modification, are permitted provided that the following */
/* conditions are met: */
/* */
/* Redistributions of source code must retain the above copyright */
/* notice, this list of conditions and the following disclaimer. */
/* Redistributions in binary form must reproduce the above copyright */
/* notice, this list of conditions and the following disclaimer in */
/* the documentation and/or other materials provided with the distribution. */
/* */
/* Neither the name of Rexx Language Association nor the names */
/* of its contributors may be used to endorse or promote products */
/* derived from this software without specific prior written permission. */
/* */
/* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS */
/* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT */
/* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS */
/* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT */
/* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, */
/* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED */
/* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, */
/* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY */
/* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING */
/* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS */
/* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
/* */
/*----------------------------------------------------------------------------*/
/***************************************************************************/
/* */
/* rexxasp3.c Open Object Rexx samples */
/* */
/* ----------------------------------------------------------------------- */
/* */
/* Description: functions used by Open Object Rexx script */
/* */
/***************************************************************************/
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <rexx.h>
/*********************************************************************/
/* Numeric Return calls */
/*********************************************************************/
#define INVALID_ROUTINE 40 /* Raise Rexx error */
#define VALID_ROUTINE 0 /* Successful completion */
#ifdef __cplusplus
extern "C" {
#endif
/*********************************************************************/
/* AspiFncTable */
/* Array of names of the REXXASPI functions. */
/* This list is used for registration and deregistration. */
/*********************************************************************/
static const char *AspiFncTable[] =
{
"Aspi_Exchange_Data",
"AspiDeregFunc3",
"Aspi_Read_All_Variables_From_REXX_VP",
"Aspi_Read_All_Elements_Of_A_Specific_Stem_From_REXX_VP"
};
/*************************************************************************
* Function: AspiLoadFuncs *
* *
* Syntax: call AspiLoadFuncs *
* *
* Params: none *
* *
* Return: null string *
*************************************************************************/
RexxReturnCode REXXENTRY AspiLoadFuncs3(
const char *name, /* Function name */
size_t numargs, /* Number of arguments */
CONSTRXSTRING args[], /* Argument array */
const char * queuename, /* Current queue */
PRXSTRING retstr ) /* Return RXSTRING */
{
int entries; /* Num of entries */
int j; /* Counter */
entries = sizeof(AspiFncTable)/sizeof(const char *);
for (j = 0; j < entries; j++)
{
RexxRegisterFunctionDll(AspiFncTable[j], "rexxasp3", AspiFncTable[j]);
}
return VALID_ROUTINE;
}
/*************************************************************************
* Function: AspiDeregFunc *
* *
* Syntax: call AspiDeregFuncs *
* *
* Params: none *
* *
* Return: null string *
*************************************************************************/
RexxReturnCode REXXENTRY AspiDeregFunc3(
const char *name, /* Function name */
size_t numargs, /* Number of arguments */
CONSTRXSTRING args[], /* Argument array */
const char * queuename, /* Current queue */
PRXSTRING retstr ) /* Return RXSTRING */
{
int entries; /* Num of entries */
int j; /* Counter */
retstr->strlength = 0; /* set return value */
if (numargs > 0)
return INVALID_ROUTINE;
entries = sizeof(AspiFncTable)/sizeof(const char *);
for (j = 0; j < entries; j++)
{
RexxDeregisterFunction(AspiFncTable[j]);
}
return VALID_ROUTINE;
}
/*************************************************************************
* Function: Aspi_Read_All_Variables_From_REXX_VP *
* *
* Syntax: call Aspi_Read_All_Variables_From_REXX_VP *
* *
* Params: No parameter required. The function is called by ASPITEST. *
* It uses a while loop to read all the variables in the active*
* REXX-variable pool. The shared variable block request code *
* is RXSHV_NEXTV. Be aware that with this request code REXX *
* treads every Stem variable as a variable itself (not the *
* whole stem). This gives the calling C-routine a chance *
* to clear up memory which was previously allocated by REXX *
* for every returned variable. If you don't free memory the *
* system will get out of storage. *
* Be aware that the returned variables are NOT in any spe- *
* cified order. *
* Return: 0 - success, 1 - failure *
*************************************************************************/
RexxReturnCode REXXENTRY Aspi_Read_All_Variables_From_REXX_VP(
const char *name, /* Function name */
size_t numargs, /* Number of arguments */
CONSTRXSTRING args[], /* Argument array */
const char * queuename, /* Current queue */
PRXSTRING retstr ) /* Return RXSTRING */
{
SHVBLOCK *prxshv;
RexxReturnCode rc;
int i = 1;
strcpy(retstr->strptr, "0");
retstr->strlength = strlen(retstr->strptr);
prxshv = (PSHVBLOCK)malloc(sizeof(SHVBLOCK));
if (!prxshv)
{
strcpy(retstr->strptr, "Allocation error occured");
retstr->strlength = strlen(retstr->strptr);
return VALID_ROUTINE;
}
prxshv->shvnext = NULL;
prxshv->shvname.strlength = 0;
prxshv->shvname.strptr = NULL;
prxshv->shvvalue.strptr = NULL; /*** let Rexx allocate for me ***/
prxshv->shvcode = RXSHV_NEXTV;
/* Now reading all variables from the Rexx-variable pool ***********/
rc = RexxVariablePool(prxshv);
if (rc)
{
if (rc != RXSHV_LVAR)
{
printf("ERROR: shvret is %x hex after var nr. %d \n",rc,i);
}
}
printf("Name of the variable from the Variable Pool: %s, Value: %s \n", prxshv->shvname.strptr, prxshv->shvvalue.strptr);
i++;
while (!prxshv->shvret)
{
prxshv->shvnext = (PSHVBLOCK)malloc(sizeof(SHVBLOCK));
prxshv = prxshv->shvnext;
if (!prxshv)
{
strcpy(retstr->strptr, "Allocation error occured");
retstr->strlength = strlen(retstr->strptr);
return VALID_ROUTINE;
}
prxshv->shvnext = NULL;
prxshv->shvname.strlength = 0;
prxshv->shvname.strptr = NULL;
prxshv->shvvalue.strptr = NULL; /*** let Rexx allocate for me ***/
prxshv->shvcode = RXSHV_NEXTV;
rc = RexxVariablePool(prxshv);
if (rc)
{
if (rc== RXSHV_MEMFL)
{
strcpy(retstr->strptr, "Allocation error occured");
retstr->strlength = strlen(retstr->strptr);
return VALID_ROUTINE;
}
else if (rc != RXSHV_LVAR)
{
printf("ERROR: shvret is %x hex after var nr. %d\n",rc,i);
return INVALID_ROUTINE;
}
}
i++;
printf("Name of the variable from the Variable Pool: %s, Value: %s \n", prxshv->shvname.strptr, prxshv->shvvalue.strptr);
RexxFreeMemory((void *)prxshv->shvname.strptr);
RexxFreeMemory((void *)prxshv->shvvalue.strptr);
}
return VALID_ROUTINE;
}
/*************************************************************************
* Function: Aspi_Read_All_Elements_Of_A_Specific_Stem_From_REXX_VP *
* *
* Syntax: call Aspi_Read_All_Elements_Of_A_Specific_Stem_From_REXX_VP *
* with the stem variable the values should be returned *
* *
* Params: A stem where all values of the stem variables should be *
returned. *
* The shared variable block request code is RXSHV_SYFET. *
* Only ONE call is necessary. If the stem contains to many *
* variables the memory resources are exhausted and Rexx *
* should return RXSHV_MEMFL. There is no change for the *
* calling routine to handle the problem with DosFreeMem *
* because it doesn't get any control before Rexx terminates. *
* The problem is during allocating memory for the values of *
* the stem-variables by DosAllocMem which allocates on 64k *
* boundary. *
* Return: 0 - success, 1 - failure *
*************************************************************************/
RexxReturnCode REXXENTRY Aspi_Read_All_Elements_Of_A_Specific_Stem_From_REXX_VP(
const char *name, /* Function name */
size_t numargs, /* Number of arguments */
CONSTRXSTRING args[], /* Argument array */
const char * queuename, /* Current queue */
PRXSTRING retstr ) /* Return RXSTRING */
{
SHVBLOCK *prxshv, *temp, *interim, rxshv;
RexxReturnCode rc;
char array[20], value[10];
char *pch, *result;
int chars;
int j, k = 0;
prxshv = &rxshv;
if (numargs != 1 ) /* validate arg count */
return INVALID_ROUTINE;
strcpy(retstr->strptr, "0");
retstr->strlength = strlen(retstr->strptr);
pch = (char *) malloc(strlen(args[0].strptr) +1);
strcpy(pch, args[0].strptr);
prxshv->shvnext = NULL;
prxshv->shvname.strlength = strlen(pch);
prxshv->shvname.strptr = pch;
prxshv->shvvalue.strptr = NULL; /*** let Rexx allocate for me ***/
prxshv->shvcode = RXSHV_SYFET;
rc = RexxVariablePool(prxshv);
if (rc)
{
strcpy(retstr->strptr, "ASPIFETCH failed \n");
retstr->strlength = strlen(retstr->strptr);
return VALID_ROUTINE;
}
j = atoi(prxshv->shvvalue.strptr);
chars = '.';
result = strrchr(pch, chars);
result++;
*result = 0x00;
temp = prxshv;
memset(array, 0x00, sizeof(array));
memset(value, 0x00, sizeof(value));
for (k = 1;k <= j; k++)
{
temp->shvnext = (PSHVBLOCK)malloc(sizeof(SHVBLOCK));
temp = temp->shvnext;
if (!temp)
{
strcpy(retstr->strptr, "Allocation error occured");
retstr->strlength = strlen(retstr->strptr);
return VALID_ROUTINE;
}
strcpy(array, pch);
sprintf(value, "%d", k);
strcat(array, value);
temp->shvnext = NULL;
temp->shvname.strlength = strlen(array);
temp->shvname.strptr = (char *) malloc(strlen(array)+1);
strcpy(temp->shvname.strptr, array);
temp->shvvalue.strptr = NULL; /*** let Rexx allocate for me ***/
temp->shvcode = RXSHV_SYFET;
}
rc = RexxVariablePool(prxshv->shvnext);
if (rc)
{
if (rc== RXSHV_MEMFL)
{
strcpy(retstr->strptr, "Allocation error occured");
retstr->strlength = strlen(retstr->strptr);
return VALID_ROUTINE;
}
else if (rc != RXSHV_LVAR)
{
printf("ERROR: shvret is %x hex \n",rc);
return INVALID_ROUTINE;
}
}
temp = prxshv->shvnext;
for (k = 1;k <= j; k++)
{
printf("Name of the Stem-variable from the Rexx Variable Pool: %s, Value: %s \n", temp->shvname.strptr, temp->shvvalue.strptr);
interim = temp;
RexxFreeMemory((void *)temp->shvname.strptr);
RexxFreeMemory((void *)temp->shvvalue.strptr);
temp = temp->shvnext;
free(interim);
}
RexxFreeMemory((void *)prxshv->shvvalue.strptr);
free(pch);
return VALID_ROUTINE;
}
#ifdef __cplusplus
}
#endif
