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/*
* Copyright (C) 2007 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define LOG_TAG "NativeHandle"
#include <stdint.h>
#include <errno.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <cutils/log.h>
#include <cutils/native_handle.h>
static const int kMaxNativeFds = 1024;
static const int kMaxNativeInts = 1024;
native_handle_t* native_handle_create(int numFds, int numInts)
{
if (numFds < 0 || numInts < 0 || numFds > kMaxNativeFds || numInts > kMaxNativeInts) {
return NULL;
}
size_t mallocSize = sizeof(native_handle_t) + (sizeof(int) * (numFds + numInts));
native_handle_t* h = malloc(mallocSize);
if (h) {
h->version = sizeof(native_handle_t);
h->numFds = numFds;
h->numInts = numInts;
}
return h;
}
int native_handle_delete(native_handle_t* h)
{
if (h) {
if (h->version != sizeof(native_handle_t))
return -EINVAL;
free(h);
}
return 0;
}
int native_handle_close(const native_handle_t* h)
{
if (h->version != sizeof(native_handle_t))
return -EINVAL;
const int numFds = h->numFds;
int i;
for (i=0 ; i<numFds ; i++) {
close(h->data[i]);
}
return 0;
}
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