88 lines
2.9 KiB
C
88 lines
2.9 KiB
C
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/*
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* Copyright (C) 2020 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include <assert.h>
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#include <ctype.h>
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#include <limits.h>
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#include <stdlib.h>
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#include <string.h>
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#include <android/api-level.h>
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#include <log/log.h>
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#include <sys/system_properties.h>
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#include "sdk_level.h"
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namespace android {
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namespace modules {
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namespace sdklevel {
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namespace unbounded {
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inline auto getVersionInt(const char *version) {
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LOG_ALWAYS_FATAL_IF(version[0] == '\0', "empty version");
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char *next_char = 0;
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const long versionInt = strtol(version, &next_char, 10);
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LOG_ALWAYS_FATAL_IF(*next_char != '\0', "no conversion from \"%s\" to long",
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version);
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LOG_ALWAYS_FATAL_IF(versionInt <= 0, "negative version: %s", version);
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LOG_ALWAYS_FATAL_IF(versionInt > INT_MAX, "version too large: %s", version);
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return (int)versionInt;
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}
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inline bool isCodename(const char *version) {
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LOG_ALWAYS_FATAL_IF(version[0] == '\0', "empty version");
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return isupper(version[0]);
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}
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// Checks if the device is running a specific version or newer.
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// Always use specific methods IsAtLeast*() available in sdk_level.h when the
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// version is known at build time. This should only be used when a dynamic
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// runtime check is needed.
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inline bool IsAtLeast(const char *version) {
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char device_codename[PROP_VALUE_MAX];
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detail::GetCodename(device_codename);
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if (!strcmp("REL", device_codename)) {
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return android_get_device_api_level() >= getVersionInt(version);
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}
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if (isCodename(version)) {
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return strcmp(device_codename, version) >= 0;
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}
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return android_get_device_api_level() >= getVersionInt(version);
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}
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// Checks if the device is running a specific version or older.
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// Always use specific methods IsAtLeast*() available in sdk_level.h when the
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// version is known at build time. This should only be used when a dynamic
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// runtime check is needed.
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inline bool IsAtMost(const char *version) {
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char device_codename[PROP_VALUE_MAX];
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detail::GetCodename(device_codename);
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if (!strcmp("REL", device_codename)) {
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return android_get_device_api_level() <= getVersionInt(version);
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}
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if (isCodename(version)) {
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return strcmp(device_codename, version) <= 0;
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}
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return android_get_device_api_level() < getVersionInt(version);
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}
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} // namespace unbounded
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} // namespace sdklevel
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} // namespace modules
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} // namespace android
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