71 lines
2.1 KiB
C
71 lines
2.1 KiB
C
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/*
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* Copyright (C) 2006 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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#ifndef __CUTILS_PROPERTIES_H
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#define __CUTILS_PROPERTIES_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* System properties are *small* name value pairs managed by the
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** property service. If your data doesn't fit in the provided
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** space it is not appropriate for a system property.
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**
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** WARNING: system/bionic/include/sys/system_properties.h also defines
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** these, but with different names. (TODO: fix that)
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*/
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#define PROPERTY_KEY_MAX 32
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#define PROPERTY_VALUE_MAX 92
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/* property_get: returns the length of the value which will never be
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** greater than 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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**
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** If the property read fails or returns an empty value, the default
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** value is used (if nonnull).
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*/
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int property_get(const char *key, char *value, const char *default_value);
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/* property_set: returns 0 on success, < 0 on failure
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*/
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int property_set(const char *key, const char *value);
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int property_list(void (*propfn)(const char *key, const char *value, void *cookie), void *cookie);
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#ifdef HAVE_SYSTEM_PROPERTY_SERVER
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/*
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* We have an external property server instead of built-in libc support.
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* Used by the simulator.
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*/
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#define SYSTEM_PROPERTY_PIPE_NAME "/tmp/android-sysprop"
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enum {
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kSystemPropertyUnknown = 0,
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kSystemPropertyGet,
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kSystemPropertySet,
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kSystemPropertyList
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};
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#endif /*HAVE_SYSTEM_PROPERTY_SERVER*/
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#ifdef __cplusplus
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}
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#endif
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#endif
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