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45 lines
1.8 KiB
45 lines
1.8 KiB
/****************************************************************************** |
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* |
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* Copyright (C) 2016 Google, Inc. |
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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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******************************************************************************/ |
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#pragma once |
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#include <cstdint> |
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#if defined(OS_GENERIC) |
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#define PROPERTY_VALUE_MAX 92 |
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#else |
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#include <cutils/properties.h> |
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#endif // defined(OS_GENERIC) |
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// Get value associated with key |key| into |value|. |
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// Returns the length of the value which will never be greater than |
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// PROPERTY_VALUE_MAX - 1 and will always be zero terminated. |
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// (the length does not include the terminating zero). |
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// If the property read fails or returns an empty value, the |default_value| |
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// is used (if nonnull). If the |default_value| is null, zero is returned. |
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int osi_property_get(const char* key, char* value, const char* default_value); |
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// Write value of property associated with key |key| to |value|. |
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// Returns 0 on success, < 0 on failure |
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int osi_property_set(const char* key, const char* value); |
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// Adapter function for property_get_int32 in |
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// libcutils/include/cutils/properties.h |
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// |
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// returns the value of |key| truncated and coerced into an |
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// int32_t. If the property is not set, then the |default_value| is used. |
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int32_t osi_property_get_int32(const char* key, int32_t default_value);
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