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/*
* Copyright (c) 2015 Nuand LLC
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef LOGGER_ENTRY
#define LOGGER_ENTRY
#include <stdint.h>
/* A log entry word is laid out as follows. All values are little endian.
*
* +--------+--------+-------------------------------------------------------+
* | Bit | Length | Description |
* +========+========+=======================================================+
* | 0 | 16 | Data to include with the logged event |
* +--------+--------+-------------------------------------------------------+
* | 16 | 11 | Source line number where the event was logged |
* +--------+--------+-------------------------------------------------------+
* | 27 | 5 | Source file ID where the event was logged |
* +--------+--------+-------------------------------------------------------+
*
*/
typedef uint32_t logger_entry;
#define LOG_DATA_SHIFT 0
#define LOG_DATA_MASK 0xffff
#define LOG_LINE_SHIFT 16
#define LOG_LINE_MASK 0x7ff
#define LOG_FILE_SHIFT 27
#define LOG_FILE_MASK 0x1f
#define LOG_EOF 0x00000000
#define LOG_ERR 0xffffffff
static inline logger_entry logger_entry_pack(uint8_t file, uint16_t line,
uint16_t data)
{
logger_entry e;
e = (data & LOG_DATA_MASK) << LOG_DATA_SHIFT;
e |= (line & LOG_LINE_MASK) << LOG_LINE_SHIFT;
e |= (file & LOG_FILE_MASK) << LOG_FILE_SHIFT;
return e;
}
static inline void logger_entry_unpack(logger_entry e, uint8_t *file,
uint16_t *line, uint16_t *data)
{
*data = (e >> LOG_DATA_SHIFT) & LOG_DATA_MASK;
*line = (e >> LOG_LINE_SHIFT) & LOG_LINE_MASK;
*file = (e >> LOG_FILE_SHIFT) & LOG_FILE_MASK;
}
#endif
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