diff options
Diffstat (limited to 'chromium/third_party/ashmem/ashmem-dev.c')
-rw-r--r-- | chromium/third_party/ashmem/ashmem-dev.c | 100 |
1 files changed, 0 insertions, 100 deletions
diff --git a/chromium/third_party/ashmem/ashmem-dev.c b/chromium/third_party/ashmem/ashmem-dev.c deleted file mode 100644 index 2303369d816..00000000000 --- a/chromium/third_party/ashmem/ashmem-dev.c +++ /dev/null @@ -1,100 +0,0 @@ -/* - * Copyright (C) 2008 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. - */ - -/* - * Implementation of the user-space ashmem API for devices, which have our - * ashmem-enabled kernel. See ashmem-sim.c for the "fake" tmp-based version, - * used by the simulator. - */ - -#include <unistd.h> -#include <string.h> -#include <sys/types.h> -#include <sys/stat.h> -#include <sys/ioctl.h> -#include <fcntl.h> - -#include <linux/ashmem.h> -#include "ashmem.h" - -#define ASHMEM_DEVICE "/dev/ashmem" - -/* - * ashmem_create_region - creates a new ashmem region and returns the file - * descriptor, or <0 on error - * - * `name' is an optional label to give the region (visible in /proc/pid/maps) - * `size' is the size of the region, in page-aligned bytes - */ -int ashmem_create_region(const char *name, size_t size) -{ - int fd, ret; - - fd = open(ASHMEM_DEVICE, O_RDWR); - if (fd < 0) - return fd; - - if (name) { - char buf[ASHMEM_NAME_LEN]; - - strlcpy(buf, name, sizeof(buf)); - ret = ioctl(fd, ASHMEM_SET_NAME, buf); - if (ret < 0) - goto error; - } - - ret = ioctl(fd, ASHMEM_SET_SIZE, size); - if (ret < 0) - goto error; - - return fd; - -error: - close(fd); - return ret; -} - -int ashmem_set_prot_region(int fd, int prot) -{ - return ioctl(fd, ASHMEM_SET_PROT_MASK, prot); -} - -int ashmem_pin_region(int fd, size_t offset, size_t len) -{ - struct ashmem_pin pin = { offset, len }; - return ioctl(fd, ASHMEM_PIN, &pin); -} - -int ashmem_unpin_region(int fd, size_t offset, size_t len) -{ - struct ashmem_pin pin = { offset, len }; - return ioctl(fd, ASHMEM_UNPIN, &pin); -} - -int ashmem_get_size_region(int fd) -{ - return ioctl(fd, ASHMEM_GET_SIZE, NULL); -} - -int ashmem_purge_all(void) -{ - const int fd = open(ASHMEM_DEVICE, O_RDWR); - if (fd < 0) - return fd; - const int ret = ioctl(fd, ASHMEM_PURGE_ALL_CACHES, 0); - close(fd); - return ret; -} |