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/*
* FILE: channel_types.c
* AUTHOR(S): Orion Hodson
*
*
* Copyright (c) 1999-2001 University College London
* All rights reserved.
*/
#ifndef HIDE_SOURCE_STRINGS
static const char cvsid[] =
"$Id: channel_types.c,v 1.11 2001/01/08 20:29:54 ucaccsp Exp $";
#endif /* HIDE_SOURCE_STRINGS */
#include "config_unix.h"
#include "config_win32.h"
#include "channel_types.h"
#include "util.h"
#include "debug.h"
int
channel_data_create(channel_data **ppcd, int nelem)
{
channel_data *pcd;
int i;
*ppcd = NULL;
pcd = (channel_data*)block_alloc(sizeof(channel_data));
if (pcd) {
memset(pcd, 0, sizeof(channel_data));
for(i = 0; i < nelem; i++) {
pcd->elem[i] = (channel_unit*)block_alloc(sizeof(channel_unit));
if (pcd->elem[i] == NULL) {
pcd->nelem = i;
channel_data_destroy(&pcd, sizeof(channel_data));
return FALSE;
}
memset(pcd->elem[i], 0, sizeof(channel_unit));
}
pcd->nelem = nelem;
*ppcd = pcd;
return TRUE;
}
return FALSE;
}
void
channel_data_destroy(channel_data **ppcd, uint32_t cd_size)
{
channel_data *pcd;
channel_unit *pcu;
int i;
pcd = *ppcd;
assert(pcd != NULL);
assert(cd_size == sizeof(channel_data));
for(i = 0; i < pcd->nelem; i++) {
pcu = pcd->elem[i];
if (pcu->data) {
block_free(pcu->data, pcu->data_len);
pcu->data_len = 0;
}
assert(pcu->data_len == 0);
block_free(pcu, sizeof(channel_unit));
pcd->elem[i] = NULL;
}
#ifdef DEBUG
while (i < MAX_CHANNEL_UNITS) {
assert(pcd->elem[i] == NULL);
i++;
}
#endif
block_free(pcd, sizeof(channel_data));
*ppcd = NULL;
}
uint32_t
channel_data_bytes(channel_data *cd)
{
uint32_t len, i;
len = 0;
for(i = 0; i < cd->nelem; i++) {
len += cd->elem[i]->data_len;
}
return len;
}
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