47 lines
1.3 KiB
C
47 lines
1.3 KiB
C
/* utils/logger.h
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**
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** Copyright 2007, The Android Open Source Project
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**
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** This file is dual licensed. It may be redistributed and/or modified
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** under the terms of the Apache 2.0 License OR version 2 of the GNU
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** General Public License.
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*/
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#ifndef _UTILS_LOGGER_H
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#define _UTILS_LOGGER_H
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#include <stdint.h>
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struct logger_entry {
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uint16_t len; /* length of the payload */
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uint16_t __pad; /* no matter what, we get 2 bytes of padding */
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int32_t pid; /* generating process's pid */
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int32_t tid; /* generating process's tid */
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int32_t sec; /* seconds since Epoch */
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int32_t nsec; /* nanoseconds */
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char msg[0]; /* the entry's payload */
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};
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#define LOGGER_LOG_MAIN "log/main"
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#define LOGGER_LOG_RADIO "log/radio"
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#define LOGGER_LOG_EVENTS "log/events"
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#define LOGGER_ENTRY_MAX_LEN (4*1024)
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#define LOGGER_ENTRY_MAX_PAYLOAD \
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(LOGGER_ENTRY_MAX_LEN - sizeof(struct logger_entry))
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#ifdef HAVE_IOCTL
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#include <sys/ioctl.h>
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#define __LOGGERIO 0xAE
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#define LOGGER_GET_LOG_BUF_SIZE _IO(__LOGGERIO, 1) /* size of log */
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#define LOGGER_GET_LOG_LEN _IO(__LOGGERIO, 2) /* used log len */
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#define LOGGER_GET_NEXT_ENTRY_LEN _IO(__LOGGERIO, 3) /* next entry len */
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#define LOGGER_FLUSH_LOG _IO(__LOGGERIO, 4) /* flush log */
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#endif // HAVE_IOCTL
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#endif /* _UTILS_LOGGER_H */
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