46523f33e0
Change-Id: I993e15a6e75029b0717960d5da31325e7f3522c1 Signed-off-by: zkhatami88 <z.khatami88@gmail.com> Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/456407 Reviewed-by: Ben Walker <benjamin.walker@intel.com> Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com> Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
193 lines
5.6 KiB
C
193 lines
5.6 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright (c) Intel Corporation.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* \file
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* Logging interfaces
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*/
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#ifndef SPDK_LOG_H
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#define SPDK_LOG_H
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#include "spdk/stdinc.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef void logfunc(int level, const char *file, const int line,
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const char *func, const char *format);
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/**
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* Initialize the logging module. Messages prior
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* to this call will be dropped.
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*/
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void spdk_log_open(logfunc *logf);
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/**
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* Close the currently active log. Messages after this call
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* will be dropped.
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*/
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void spdk_log_close(void);
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enum spdk_log_level {
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/** All messages will be suppressed. */
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SPDK_LOG_DISABLED = -1,
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SPDK_LOG_ERROR,
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SPDK_LOG_WARN,
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SPDK_LOG_NOTICE,
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SPDK_LOG_INFO,
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SPDK_LOG_DEBUG,
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};
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/**
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* Set the log level threshold to log messages. Messages with a higher
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* level than this are ignored.
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*
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* \param level Log level threshold to set to log messages.
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*/
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void spdk_log_set_level(enum spdk_log_level level);
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/**
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* Get the current log level threshold.
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*
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* \return the current log level threshold.
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*/
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enum spdk_log_level spdk_log_get_level(void);
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/**
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* Set the log level threshold to include stack trace in log messages.
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* Messages with a higher level than this will not contain stack trace. You
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* can use \c SPDK_LOG_DISABLED to completely disable stack trace printing
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* even if it is supported.
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*
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* \note This function has no effect if SPDK is built without stack trace
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* printing support.
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*
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* \param level Log level threshold for stacktrace.
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*/
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void spdk_log_set_backtrace_level(enum spdk_log_level level);
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/**
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* Get the current log level threshold for showing stack trace in log message.
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*
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* \return the current log level threshold for stack trace.
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*/
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enum spdk_log_level spdk_log_get_backtrace_level(void);
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/**
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* Set the current log level threshold for printing to stderr.
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* Messages with a level less than or equal to this level
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* are also printed to stderr. You can use \c SPDK_LOG_DISABLED to completely
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* suppress log printing.
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*
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* \param level Log level threshold for printing to stderr.
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*/
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void spdk_log_set_print_level(enum spdk_log_level level);
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/**
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* Get the current log level print threshold.
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*
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* \return the current log level print threshold.
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*/
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enum spdk_log_level spdk_log_get_print_level(void);
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#define SPDK_NOTICELOG(...) \
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spdk_log(SPDK_LOG_NOTICE, __FILE__, __LINE__, __func__, __VA_ARGS__)
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#define SPDK_WARNLOG(...) \
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spdk_log(SPDK_LOG_WARN, __FILE__, __LINE__, __func__, __VA_ARGS__)
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#define SPDK_ERRLOG(...) \
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spdk_log(SPDK_LOG_ERROR, __FILE__, __LINE__, __func__, __VA_ARGS__)
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/**
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* Write messages to the log file. If \c level is set to \c SPDK_LOG_DISABLED,
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* this log message won't be written.
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*
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* \param level Log level threshold.
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* \param file Name of the current source file.
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* \param line Current source line number.
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* \param func Current source function name.
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* \param format Format string to the message.
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*/
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void spdk_log(enum spdk_log_level level, const char *file, const int line, const char *func,
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const char *format, ...) __attribute__((__format__(__printf__, 5, 6)));
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/**
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* Log the contents of a raw buffer to a file.
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*
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* \param fp File to hold the log.
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* \param label Label to print to the file.
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* \param buf Buffer that holds the log information.
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* \param len Length of buffer to dump.
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*/
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void spdk_log_dump(FILE *fp, const char *label, const void *buf, size_t len);
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/**
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* Check whether the log flag exists and is enabled.
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*
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* \return true if enabled, or false otherwise.
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*/
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bool spdk_log_get_flag(const char *flag);
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/**
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* Enable the log flag.
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*
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* \param flag Log flag to be enabled.
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*
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* \return 0 on success, -1 on failure.
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*/
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int spdk_log_set_flag(const char *flag);
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/**
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* Clear a log flag.
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*
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* \param flag Log flag to clear.
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*
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* \return 0 on success, -1 on failure.
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*/
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int spdk_log_clear_flag(const char *flag);
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/**
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* Show all the log flags and their usage.
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*
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* \param f File to hold all the flags' information.
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* \param log_arg Command line option to set/enable the log flag.
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*/
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void spdk_log_usage(FILE *f, const char *log_arg);
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#ifdef __cplusplus
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}
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#endif
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#endif /* SPDK_LOG_H */
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