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/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef DLL_EXPORT
# define USE_STATIC_LIB
#endif
#include "zookeeper_log.h"
#include <unistd.h>
#include <stdarg.h>
#include <time.h>
#define TIME_NOW_BUF_SIZE 1024
#define FORMAT_LOG_BUF_SIZE 4096
#ifdef THREADED
#include <pthread.h>
static pthread_key_t time_now_buffer;
static pthread_key_t format_log_msg_buffer;
void freeBuffer(void* p){
if(p) free(p);
}
__attribute__((constructor)) void prepareTSDKeys() {
pthread_key_create (&time_now_buffer, freeBuffer);
pthread_key_create (&format_log_msg_buffer, freeBuffer);
}
char* getTSData(pthread_key_t key,int size){
char* p=pthread_getspecific(key);
if(p==0){
int res;
p=calloc(1,size);
res=pthread_setspecific(key,p);
if(res!=0){
fprintf(stderr,"Failed to set TSD key: %d",res);
}
}
return p;
}
char* get_time_buffer(){
return getTSData(time_now_buffer,TIME_NOW_BUF_SIZE);
}
char* get_format_log_buffer(){
return getTSData(format_log_msg_buffer,FORMAT_LOG_BUF_SIZE);
}
#else
char* get_time_buffer(){
static char buf[TIME_NOW_BUF_SIZE];
return buf;
}
char* get_format_log_buffer(){
static char buf[FORMAT_LOG_BUF_SIZE];
return buf;
}
#endif
ZooLogLevel logLevel=ZOO_LOG_LEVEL_INFO;
static FILE* logStream=0;
FILE* getLogStream(){
if(logStream==0)
logStream=stderr;
return logStream;
}
void zoo_set_log_stream(FILE* stream){
logStream=stream;
}
static const char* time_now(){
struct timeval tv;
struct tm lt;
time_t now = 0;
size_t len = 0;
char* now_str=get_time_buffer();
if(!now_str)
return "time_now(): Failed to allocate memory buffer";
gettimeofday(&tv,0);
now = tv.tv_sec;
localtime_r(&now, <);
// clone the format used by log4j ISO8601DateFormat
// specifically: "yyyy-MM-dd HH:mm:ss,SSS"
len = strftime(now_str, TIME_NOW_BUF_SIZE,
"%F %H:%M:%S",
<);
len += snprintf(now_str + len,
TIME_NOW_BUF_SIZE - len,
",%03d",
(int)(tv.tv_usec/1000));
return now_str;
}
void log_message(ZooLogLevel curLevel,int line,const char* funcName,
const char* message)
{
static const char* dbgLevelStr[]={"ZOO_INVALID","ZOO_ERROR","ZOO_WARN",
"ZOO_INFO","ZOO_DEBUG"};
static pid_t pid=0;
if(pid==0)pid=getpid();
#ifndef THREADED
fprintf(LOGSTREAM, "%s:%d:%s@%s@%d: %s\n", time_now(),pid,
dbgLevelStr[curLevel],funcName,line,message);
#else
fprintf(LOGSTREAM, "%s:%d(0x%lx):%s@%s@%d: %s\n", time_now(),pid,
(unsigned long int)pthread_self(),
dbgLevelStr[curLevel],funcName,line,message);
#endif
fflush(LOGSTREAM);
}
const char* format_log_message(const char* format,...)
{
va_list va;
char* buf=get_format_log_buffer();
if(!buf)
return "format_log_message: Unable to allocate memory buffer";
va_start(va,format);
vsnprintf(buf, FORMAT_LOG_BUF_SIZE-1,format,va);
va_end(va);
return buf;
}
void zoo_set_debug_level(ZooLogLevel level)
{
if(level==0){
// disable logging (unit tests do this)
logLevel=(ZooLogLevel)0;
return;
}
if(level<ZOO_LOG_LEVEL_ERROR)level=ZOO_LOG_LEVEL_ERROR;
if(level>ZOO_LOG_LEVEL_DEBUG)level=ZOO_LOG_LEVEL_DEBUG;
logLevel=level;
}
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