Merge "Revert "Revert "Exporting C headers from system/core"""

../libcutils/include/cutils/

 No newline at end of file

../liblog/include/log

 No newline at end of file

#include <log/log.h>

#include <log/log.h>

/*

 * Copyright (C) 2015 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.

 */

/* This file is used to define the internal protocol for the Android Logger */

#ifndef _SYSTEM_CORE_INCLUDE_PRIVATE_ANDROID_LOGGER_H_

#define _SYSTEM_CORE_INCLUDE_PRIVATE_ANDROID_LOGGER_H_

/* Android private interfaces */

#include <stdbool.h>

#include <stdint.h>

#include <sys/types.h>

#if (defined(__cplusplus) && defined(_USING_LIBCXX))

extern "C++" {

#include <string>

}

#endif

#include <log/log_event_list.h>

#include <log/log.h>

#define LOGGER_MAGIC 'l'

#if defined(__cplusplus)

extern "C" {

#endif

/* Header Structure to pstore */

typedef struct __attribute__((__packed__)) {

    uint8_t magic;

    uint16_t len;

    uint16_t uid;

    uint16_t pid;

} android_pmsg_log_header_t;

/* Header Structure to logd, and second header for pstore */

typedef struct __attribute__((__packed__)) {

    typeof_log_id_t id;

    uint16_t tid;

    log_time realtime;

} android_log_header_t;

/* Event Header Structure to logd */

typedef struct __attribute__((__packed__)) {

    int32_t tag;  // Little Endian Order

} android_event_header_t;

/* Event payload EVENT_TYPE_INT */

typedef struct __attribute__((__packed__)) {

    int8_t type;  // EVENT_TYPE_INT

    int32_t data; // Little Endian Order

} android_event_int_t;

/* Event with single EVENT_TYPE_INT */

typedef struct __attribute__((__packed__)) {

    android_event_header_t header;

    android_event_int_t payload;

} android_log_event_int_t;

/* Event payload EVENT_TYPE_LONG */

typedef struct __attribute__((__packed__)) {

    int8_t type;  // EVENT_TYPE_LONG

    int64_t data; // Little Endian Order

} android_event_long_t;

/* Event with single EVENT_TYPE_LONG */

typedef struct __attribute__((__packed__)) {

    android_event_header_t header;

    android_event_long_t payload;

} android_log_event_long_t;

/*

 * Event payload EVENT_TYPE_STRING

 *

 * Danger: do not embed this structure into another structure.

 * This structure uses a flexible array member, and when

 * compiled using g++, __builtin_object_size(data, 1) returns

 * a bad value. This is possibly a g++ bug, or a bug due to

 * the fact that flexible array members are not supported

 * in C++.

 * http://stackoverflow.com/questions/4412749/are-flexible-array-members-valid-in-c

 */

typedef struct __attribute__((__packed__)) {

    int8_t type;    // EVENT_TYPE_STRING;

    int32_t length; // Little Endian Order

    char data[];

} android_event_string_t;

/* Event with single EVENT_TYPE_STRING */

typedef struct __attribute__((__packed__)) {

    android_event_header_t header;

    int8_t type;    // EVENT_TYPE_STRING;

    int32_t length; // Little Endian Order

    char data[];

} android_log_event_string_t;

#define ANDROID_LOG_PMSG_FILE_MAX_SEQUENCE 256 /* 1MB file */

#define ANDROID_LOG_PMSG_FILE_SEQUENCE     1000

ssize_t __android_log_pmsg_file_write(

        log_id_t logId,

        char prio,

        const char* filename,

        const char* buf, size_t len);

#define LOG_ID_ANY      ((log_id_t)-1)

#define ANDROID_LOG_ANY ANDROID_LOG_UNKNOWN

/* first 5 arguments match __android_log_msg_file_write, a cast is safe */

typedef ssize_t (*__android_log_pmsg_file_read_fn)(

        log_id_t logId,

        char prio,

        const char* filename,

        const char* buf, size_t len, void* arg);

ssize_t __android_log_pmsg_file_read(

        log_id_t logId, char prio, const char* prefix,

        __android_log_pmsg_file_read_fn fn, void* arg);

int __android_log_security_bwrite(int32_t tag, const void* payload, size_t len);

int __android_log_security_bswrite(int32_t tag, const char* payload);

int __android_log_security(); /* Device Owner is present */

int __android_log_is_debuggable();

#define BOOL_DEFAULT_FLAG_TRUE_FALSE 0x1

#define BOOL_DEFAULT_FALSE       0x0     /* false if property not present   */

#define BOOL_DEFAULT_TRUE        0x1     /* true if property not present    */

#define BOOL_DEFAULT_FLAG_PERSIST    0x2 /* <key>, persist.<key>, ro.<key>  */

#define BOOL_DEFAULT_FLAG_ENG        0x4 /* off for user                    */

#define BOOL_DEFAULT_FLAG_SVELTE     0x8 /* off for low_ram                 */

bool __android_logger_property_get_bool(const char* key, int flag);

#define LOG_BUFFER_SIZE (256 * 1024) /* Tuned with ro.logd.size per-platform */

#define LOG_BUFFER_MIN_SIZE (64 * 1024UL)

#define LOG_BUFFER_MAX_SIZE (256 * 1024 * 1024UL)

unsigned long __android_logger_get_buffer_size(log_id_t logId);

bool __android_logger_valid_buffer_size(unsigned long value);

/* Retrieve the composed event buffer */

int android_log_write_list_buffer(android_log_context ctx, const char** msg);

#ifdef __cplusplus

#ifdef __class_android_log_event_list_defined

#ifndef __class_android_log_event_list_private_defined

#define __class_android_log_event_list_private_defined

/* android_log_context C++ helpers */

extern "C++" {

class __android_log_event_list : public android_log_event_list {

    __android_log_event_list(const android_log_event_list&) = delete;

    void operator =(const __android_log_event_list&) = delete;

public:

    explicit __android_log_event_list(int tag) : android_log_event_list(tag) { }

    explicit __android_log_event_list(log_msg& log_msg) : android_log_event_list(log_msg) { }

#if defined(_USING_LIBCXX)

    operator std::string() {

        if (ret) return std::string("");

        const char* cp = NULL;

        ssize_t len = android_log_write_list_buffer(ctx, &cp);

        if (len < 0) ret = len;

        if (!cp || (len <= 0)) return std::string("");

        return std::string(cp, len);

    }

#endif

};

}

#endif

#endif

#endif

#if defined(__cplusplus)

}

#endif

#endif /* _SYSTEM_CORE_INCLUDE_PRIVATE_ANDROID_LOGGER_H_ */