114 lines
2.8 KiB
C++
114 lines
2.8 KiB
C++
/* @file misc.h
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*/
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/*
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* Copyright 2009 10gen Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include <ctime>
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namespace mongo {
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using namespace std;
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inline void time_t_to_String(time_t t, char *buf) {
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#if defined(_WIN32)
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ctime_s(buf, 32, &t);
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#else
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ctime_r(&t, buf);
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#endif
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buf[24] = 0; // don't want the \n
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}
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inline string time_t_to_String(time_t t = time(0) ) {
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char buf[64];
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#if defined(_WIN32)
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ctime_s(buf, sizeof(buf), &t);
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#else
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ctime_r(&t, buf);
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#endif
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buf[24] = 0; // don't want the \n
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return buf;
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}
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inline string time_t_to_String_no_year(time_t t) {
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char buf[64];
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#if defined(_WIN32)
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ctime_s(buf, sizeof(buf), &t);
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#else
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ctime_r(&t, buf);
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#endif
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buf[19] = 0;
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return buf;
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}
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inline string time_t_to_String_short(time_t t) {
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char buf[64];
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#if defined(_WIN32)
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ctime_s(buf, sizeof(buf), &t);
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#else
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ctime_r(&t, buf);
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#endif
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buf[19] = 0;
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if( buf[0] && buf[1] && buf[2] && buf[3] )
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return buf + 4; // skip day of week
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return buf;
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}
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struct Date_t {
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// TODO: make signed (and look for related TODO's)
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unsigned long long millis;
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Date_t(): millis(0) {}
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Date_t(unsigned long long m): millis(m) {}
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operator unsigned long long&() { return millis; }
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operator const unsigned long long&() const { return millis; }
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string toString() const {
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char buf[64];
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time_t_to_String(millis/1000, buf);
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return buf;
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}
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};
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// Like strlen, but only scans up to n bytes.
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// Returns -1 if no '0' found.
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inline int strnlen( const char *s, int n ) {
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for( int i = 0; i < n; ++i )
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if ( !s[ i ] )
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return i;
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return -1;
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}
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inline bool isNumber( char c ) {
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return c >= '0' && c <= '9';
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}
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inline unsigned stringToNum(const char *str) {
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unsigned x = 0;
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const char *p = str;
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while( 1 ) {
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if( !isNumber(*p) ) {
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if( *p == 0 && p != str )
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break;
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throw 0;
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}
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x = x * 10 + *p++ - '0';
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}
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return x;
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}
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}
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