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-rw-r--r--nativeruntime/cpp/libcutils/ashmem.cpp98
1 files changed, 0 insertions, 98 deletions
diff --git a/nativeruntime/cpp/libcutils/ashmem.cpp b/nativeruntime/cpp/libcutils/ashmem.cpp
deleted file mode 100644
index 1b1fd7144..000000000
--- a/nativeruntime/cpp/libcutils/ashmem.cpp
+++ /dev/null
@@ -1,98 +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.
- */
-
-// Derived from
-// https://cs.android.com/android/platform/superproject/+/android-11.0.0_r1:system/core/libcutils/ashmem-host.cpp
-
-#include "cutils/ashmem.h"
-
-/*
- * Implementation of the user-space ashmem API for the simulator, which lacks
- * an ashmem-enabled kernel. See ashmem-dev.c for the real ashmem-based version.
- */
-
-#include <errno.h>
-#include <fcntl.h>
-#include <limits.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <time.h>
-#include <unistd.h>
-
-// bionic and glibc both have TEMP_FAILURE_RETRY, but some (e.g. Mac OS) do not.
-#include "android-base/macros.h"
-
-static bool ashmem_validate_stat(int fd, struct stat* buf) {
- int result = fstat(fd, buf);
- if (result == -1) {
- return false;
- }
-
- /*
- * Check if this is an "ashmem" region.
- * TODO: This is very hacky, and can easily break.
- * We need some reliable indicator.
- */
- if (!(buf->st_nlink == 0 && S_ISREG(buf->st_mode))) {
- errno = ENOTTY;
- return false;
- }
- return true;
-}
-
-int ashmem_valid(int fd) {
- struct stat buf;
- return ashmem_validate_stat(fd, &buf);
-}
-
-int ashmem_create_region(const char* /*ignored*/, size_t size) {
- char pattern[PATH_MAX];
- snprintf(pattern, sizeof(pattern), "/tmp/android-ashmem-%d-XXXXXXXXX",
- getpid());
- int fd = mkstemp(pattern);
- if (fd == -1) return -1;
-
- unlink(pattern);
-
- if (TEMP_FAILURE_RETRY(ftruncate(fd, size)) == -1) {
- close(fd);
- return -1;
- }
-
- return fd;
-}
-
-int ashmem_set_prot_region(int /*fd*/, int /*prot*/) { return 0; }
-
-int ashmem_pin_region(int /*fd*/, size_t /*offset*/, size_t /*len*/) {
- return 0 /*ASHMEM_NOT_PURGED*/;
-}
-
-int ashmem_unpin_region(int /*fd*/, size_t /*offset*/, size_t /*len*/) {
- return 0 /*ASHMEM_IS_UNPINNED*/;
-}
-
-int ashmem_get_size_region(int fd) {
- struct stat buf;
- if (!ashmem_validate_stat(fd, &buf)) {
- return -1;
- }
-
- return buf.st_size;
-}