fis-gtm/sr_unix/iopi_iocontrol.c

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/****************************************************************
* *
* Copyright 2008, 2009 Fidelity Information Services, Inc *
* *
* This source code contains the intellectual property *
* of its copyright holder(s), and is made available *
* under a license. If you do not know the terms of *
* the license, please stop and do not read further. *
* *
****************************************************************/
/* iopi_iocontrol.c */
#include "mdef.h"
#include "gtm_unistd.h"
#include "gtm_inet.h"
#include "gtm_stdio.h"
#include "gtm_string.h"
#include "io.h"
#include "iormdef.h"
#include "iotimer.h"
#include "iotcpdef.h"
#include "gt_timer.h"
#include "gtm_caseconv.h"
#include "min_max.h"
#include "gtmio.h"
GBLREF io_pair io_curr_device;
void iopi_iocontrol(mstr *d)
{
char action[MAX_DEVCTL_LENGTH];
d_rm_struct *d_rm;
int rc;
error_def(ERR_INVCTLMNE);
d_rm = (d_rm_struct *) io_curr_device.out->dev_sp;
if (!d_rm->pipe && !d_rm->fifo)
return;
if (0 == d->len)
return;
lower_to_upper((uchar_ptr_t)&action[0], (uchar_ptr_t)d->addr, MIN(d->len, SIZEOF(action)));
if (0 == memcmp(&action[0], "EOF", MIN(d->len, SIZEOF(action))))
{ /* Implement the write /EOF action. Close the output stream to force any blocked output to complete.
* Doing a write /EOF closes the output file descriptor for the current device but does not close the
* device (for a pipe this forces any blocked io to be complete). Since the M program could attempt
* this command more than once, check if the file is not already closed before the actual close.
*/
if (FD_INVALID != d_rm->fildes)
CLOSEFILE_RESET(d_rm->fildes, rc); /* resets "d_rm->fildes" to FD_INVALID */
} else
rts_error(VARLSTCNT(1) ERR_INVCTLMNE);
return;
}
void iopi_dlr_device(mstr *d)
{
io_desc *iod;
int len;
d_rm_struct *d_rm;
/* We will default to the output device for setting $device, since pipe uses both */
iod = io_curr_device.out;
d_rm = (d_rm_struct *)iod->dev_sp;
len = STRLEN(d_rm->dollar_device);
/* verify internal buffer has enough space for $DEVICE string value */
assert((int)d->len > len);
memcpy(d->addr, d_rm->dollar_device, MIN(len,d->len));
d->len = len;
return;
}
void iopi_dlr_key(mstr *d)
{
io_desc *iod;
int len;
d_rm_struct *d_rm;
iod = io_curr_device.out;
d_rm = (d_rm_struct *)iod->dev_sp;
len = STRLEN(d_rm->dollar_key);
/* verify internal buffer has enough space for $KEY string value */
assert((int)d->len > len);
if (len > 0)
memcpy(d->addr, d_rm->dollar_key, MIN(len,d->len));
d->len = len;
return;
}