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/* This work is licensed under a Creative Commons CCZero 1.0 Universal License.
* See http://creativecommons.org/publicdomain/zero/1.0/ for more information.
*
* Copyright 2016-2018 (c) Fraunhofer IOSB (Author: Julius Pfrommer)
* Copyright 2017 (c) Thomas Stalder, Blue Time Concept SA
*/
#include <open62541/plugin/log_stdout.h>
#include <open62541/types.h>
#include <stdio.h>
/* ANSI escape sequences for color output taken from here:
* https://stackoverflow.com/questions/3219393/stdlib-and-colored-output-in-c*/
#ifdef UA_ARCHITECTURE_POSIX
# define ANSI_COLOR_RED "\x1b[31m"
# define ANSI_COLOR_GREEN "\x1b[32m"
# define ANSI_COLOR_YELLOW "\x1b[33m"
# define ANSI_COLOR_BLUE "\x1b[34m"
# define ANSI_COLOR_MAGENTA "\x1b[35m"
# define ANSI_COLOR_CYAN "\x1b[36m"
# define ANSI_COLOR_RESET "\x1b[0m"
#else
# define ANSI_COLOR_RED ""
# define ANSI_COLOR_GREEN ""
# define ANSI_COLOR_YELLOW ""
# define ANSI_COLOR_BLUE ""
# define ANSI_COLOR_MAGENTA ""
# define ANSI_COLOR_CYAN ""
# define ANSI_COLOR_RESET ""
#endif
static
const char *logLevelNames[6] = {"trace", "debug",
ANSI_COLOR_GREEN "info",
ANSI_COLOR_YELLOW "warn",
ANSI_COLOR_RED "error",
ANSI_COLOR_MAGENTA "fatal"};
static const char *
logCategoryNames[UA_LOGCATEGORIES] =
{"network", "channel", "session", "server", "client",
"userland", "securitypolicy", "eventloop", "pubsub", "discovery"};
/* Protect crosstalk during logging via global lock. Use a spinlock as we cannot
* statically initialize a global lock across all platforms. */
#if UA_MULTITHREADING >= 100
void * volatile logSpinLock = NULL;
static UA_INLINE void spinLock(void) {
while(UA_atomic_cmpxchg(&logSpinLock, NULL, (void*)0x1) != NULL) {}
}
static UA_INLINE void spinUnLock(void) {
UA_atomic_xchg(&logSpinLock, NULL);
}
#endif
#ifdef __clang__
__attribute__((__format__(__printf__, 4 , 0)))
#endif
static void
UA_Log_Stdout_log(void *context, UA_LogLevel level, UA_LogCategory category,
const char *msg, va_list args) {
/* MinLevel encoded in the context pointer */
UA_LogLevel minLevel = (UA_LogLevel)(uintptr_t)context;
if(minLevel > level)
return;
UA_Int64 tOffset = UA_DateTime_localTimeUtcOffset();
UA_DateTimeStruct dts = UA_DateTime_toStruct(UA_DateTime_now() + tOffset);
int logLevelSlot = ((int)level / 100) - 1;
if(logLevelSlot < 0 || logLevelSlot > 5)
logLevelSlot = 5; /* Set to fatal if the level is outside the range */
/* Lock */
#if UA_MULTITHREADING >= 100
spinLock();
#endif
/* Log */
printf("[%04u-%02u-%02u %02u:%02u:%02u.%03u (UTC%+05d)] %s/%s" ANSI_COLOR_RESET "\t",
dts.year, dts.month, dts.day, dts.hour, dts.min, dts.sec, dts.milliSec,
(int)(tOffset / UA_DATETIME_SEC / 36), logLevelNames[logLevelSlot],
logCategoryNames[category]);
vprintf(msg, args);
printf("\n");
fflush(stdout);
/* Unlock */
#if UA_MULTITHREADING >= 100
spinUnLock();
#endif
}
static void
UA_Log_Stdout_clear(UA_Logger *logger) {
UA_free(logger);
}
const UA_Logger UA_Log_Stdout_ = {UA_Log_Stdout_log, NULL, NULL};
const UA_Logger *UA_Log_Stdout = &UA_Log_Stdout_;
UA_Logger
UA_Log_Stdout_withLevel(UA_LogLevel minlevel) {
UA_Logger logger =
{UA_Log_Stdout_log, (void*)(uintptr_t)minlevel, NULL};
return logger;
}
UA_Logger *
UA_Log_Stdout_new(UA_LogLevel minlevel) {
UA_Logger *logger = (UA_Logger*)UA_malloc(sizeof(UA_Logger));
if(!logger)
return NULL;
*logger = UA_Log_Stdout_withLevel(minlevel);
logger->clear = UA_Log_Stdout_clear;
return logger;
}
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