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/* include/linux/logger.h
*
* Copyright (C) 2007-2008 Google, Inc.
* Author: Robert Love <rlove@android.com>
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#ifndef _LINUX_LOGGER_H
#define _LINUX_LOGGER_H
#include <linux/types.h>
#include <linux/ioctl.h>
/*
* The userspace structure for version 1 of the logger_entry ABI.
* This structure is returned to userspace unless the caller requests
* an upgrade to a newer ABI version.
*/
struct user_logger_entry_compat {
__u16 len; /* length of the payload */
__u16 __pad; /* no matter what, we get 2 bytes of padding */
__s32 pid; /* generating process's pid */
__s32 tid; /* generating process's tid */
__s32 sec; /* seconds since Epoch */
__s32 nsec; /* nanoseconds */
char msg[0]; /* the entry's payload */
};
/*
* The structure for version 2 of the logger_entry ABI.
* This structure is returned to userspace if ioctl(LOGGER_SET_VERSION)
* is called with version >= 2
*/
struct logger_entry {
__u16 len; /* length of the payload */
__u16 hdr_size; /* sizeof(struct logger_entry_v2) */
__s32 pid; /* generating process's pid */
__s32 tid; /* generating process's tid */
__s32 sec; /* seconds since Epoch */
__s32 nsec; /* nanoseconds */
uid_t euid; /* effective UID of logger */
char msg[0]; /* the entry's payload */
};
#define LOGGER_LOG_RADIO "log_radio" /* radio-related messages */
#define LOGGER_LOG_EVENTS "log_events" /* system/hardware events */
#define LOGGER_LOG_SYSTEM "log_system" /* system/framework messages */
#define LOGGER_LOG_MAIN "log_main" /* everything else */
#define LOGGER_LOG_SF "log_sf" /* surfaceflinger */
#define LOGGER_ENTRY_MAX_PAYLOAD 4076
#define __LOGGERIO 0xAE
#define LOGGER_GET_LOG_BUF_SIZE _IO(__LOGGERIO, 1) /* size of log */
#define LOGGER_GET_LOG_LEN _IO(__LOGGERIO, 2) /* used log len */
#define LOGGER_GET_NEXT_ENTRY_LEN _IO(__LOGGERIO, 3) /* next entry len */
#define LOGGER_FLUSH_LOG _IO(__LOGGERIO, 4) /* flush log */
#define LOGGER_GET_VERSION _IO(__LOGGERIO, 5) /* abi version */
#define LOGGER_SET_VERSION _IO(__LOGGERIO, 6) /* abi version */
#endif /* _LINUX_LOGGER_H */
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