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/* @file misc.h
*/
/*
* Copyright 2009 10gen Inc.
*
* Licensed 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.
*/
#pragma once
#include <ctime>
namespace mongo {
using namespace std;
inline void time_t_to_String(time_t t, char *buf) {
#if defined(_WIN32)
ctime_s(buf, 32, &t);
#else
ctime_r(&t, buf);
#endif
buf[24] = 0; // don't want the \n
}
inline string time_t_to_String(time_t t = time(0) ) {
char buf[64];
#if defined(_WIN32)
ctime_s(buf, sizeof(buf), &t);
#else
ctime_r(&t, buf);
#endif
buf[24] = 0; // don't want the \n
return buf;
}
inline string time_t_to_String_no_year(time_t t) {
char buf[64];
#if defined(_WIN32)
ctime_s(buf, sizeof(buf), &t);
#else
ctime_r(&t, buf);
#endif
buf[19] = 0;
return buf;
}
inline string time_t_to_String_short(time_t t) {
char buf[64];
#if defined(_WIN32)
ctime_s(buf, sizeof(buf), &t);
#else
ctime_r(&t, buf);
#endif
buf[19] = 0;
if( buf[0] && buf[1] && buf[2] && buf[3] )
return buf + 4; // skip day of week
return buf;
}
struct Date_t {
// TODO: make signed (and look for related TODO's)
unsigned long long millis;
Date_t(): millis(0) {}
Date_t(unsigned long long m): millis(m) {}
operator unsigned long long&() { return millis; }
operator const unsigned long long&() const { return millis; }
string toString() const {
char buf[64];
time_t_to_String(millis/1000, buf);
return buf;
}
};
// Like strlen, but only scans up to n bytes.
// Returns -1 if no '0' found.
inline int strnlen( const char *s, int n ) {
for( int i = 0; i < n; ++i )
if ( !s[ i ] )
return i;
return -1;
}
inline bool isNumber( char c ) {
return c >= '0' && c <= '9';
}
inline unsigned stringToNum(const char *str) {
unsigned x = 0;
const char *p = str;
while( 1 ) {
if( !isNumber(*p) ) {
if( *p == 0 && p != str )
break;
throw 0;
}
x = x * 10 + *p++ - '0';
}
return x;
}
}
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