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// util.cpp
/* 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.
*/
#include "stdafx.h"
#include "goodies.h"
#include "unittest.h"
#include "file_allocator.h"
#include "optime.h"
namespace mongo {
vector<UnitTest*> *UnitTest::tests = 0;
bool UnitTest::running = false;
Nullstream nullstream;
thread_specific_ptr<Logstream> Logstream::tsp;
const char *default_getcurns() { return ""; }
const char * (*getcurns)() = default_getcurns;
int logLevel = 0;
mongo::mutex Logstream::mutex;
int Logstream::doneSetup = Logstream::magicNumber();
bool goingAway = false;
bool isPrime(int n) {
int z = 2;
while ( 1 ) {
if ( z*z > n )
break;
if ( n % z == 0 )
return false;
z++;
}
return true;
}
int nextPrime(int n) {
n |= 1; // 2 goes to 3...don't care...
while ( !isPrime(n) )
n += 2;
return n;
}
struct UtilTest : public UnitTest {
void run() {
assert( WrappingInt(0) <= WrappingInt(0) );
assert( WrappingInt(0) <= WrappingInt(1) );
assert( !(WrappingInt(1) <= WrappingInt(0)) );
assert( (WrappingInt(0xf0000000) <= WrappingInt(0)) );
assert( (WrappingInt(0xf0000000) <= WrappingInt(9000)) );
assert( !(WrappingInt(300) <= WrappingInt(0xe0000000)) );
assert( tdiff(3, 4) == 1 );
assert( tdiff(4, 3) == -1 );
assert( tdiff(0xffffffff, 0) == 1 );
assert( isPrime(3) );
assert( isPrime(2) );
assert( isPrime(13) );
assert( isPrime(17) );
assert( !isPrime(9) );
assert( !isPrime(6) );
assert( nextPrime(4) == 5 );
assert( nextPrime(8) == 11 );
assert( endsWith("abcde", "de") );
assert( !endsWith("abcde", "dasdfasdfashkfde") );
assert( swapEndian(0x01020304) == 0x04030201 );
}
} utilTest;
// The mutex contained in this object may be held on shutdown.
FileAllocator &theFileAllocator_ = *(new FileAllocator());
FileAllocator &theFileAllocator() { return theFileAllocator_; }
OpTime OpTime::last(0, 0);
/* this is a good place to set a breakpoint when debugging, as lots of warning things
(assert, wassert) call it.
*/
void sayDbContext(const char *errmsg) {
if ( errmsg ) {
problem() << errmsg << endl;
}
printStackTrace();
}
void rawOut( const string &s ) {
if( s.empty() ) return;
char now[64];
time_t_to_String(time(0), now);
now[20] = 0;
#if defined(_WIN32)
(std::cout << now << " " << s).flush();
#else
write( STDOUT_FILENO, now, 20 );
write( STDOUT_FILENO, " ", 1 );
write( STDOUT_FILENO, s.c_str(), s.length() );
fsync( STDOUT_FILENO );
#endif
}
#ifndef _SCONS
// only works in scons
const char * gitVersion(){ return ""; }
const char * sysInfo(){ return ""; }
#endif
void printGitVersion() { log() << "git version: " << gitVersion() << endl; }
void printSysInfo() { log() << "sys info: " << sysInfo() << endl; }
string mongodVersion() {
stringstream ss;
ss << "db version v" << versionString << ", pdfile version " << VERSION << "." << VERSION_MINOR;
return ss.str();
}
ostream& operator<<( ostream &s, const ThreadSafeString &o ){
s << (string)o;
return s;
}
bool __destroyingStatics = false;
} // namespace mongo
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