/usr/include/hphp/util/log-file-flusher.h is in hhvm-dev 3.11.1+dfsg-1ubuntu1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 | /*
+----------------------------------------------------------------------+
| HipHop for PHP |
+----------------------------------------------------------------------+
| Copyright (c) 2010-2015 Facebook, Inc. (http://www.facebook.com) |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
*/
#ifndef incl_HPHP_LOG_FILE_FLUSHER_H_
#define incl_HPHP_LOG_FILE_FLUSHER_H_
#include <cstdio>
#include <atomic>
#include <unistd.h>
#include "hphp/util/compatibility.h"
namespace HPHP {
//////////////////////////////////////////////////////////////////////
struct LogFileFlusher {
LogFileFlusher() {}
virtual ~LogFileFlusher() {}
void recordWriteAndMaybeDropCaches(int fd, int bytes);
inline void recordWriteAndMaybeDropCaches(FILE* f, int bytes) {
recordWriteAndMaybeDropCaches(fileno(f), bytes);
}
enum {
kDropCacheTail = 1 * 1024 * 1024
};
static int DropCacheChunkSize;
private: // For testing
virtual void dropCache(int fd, off_t len) { fadvise_dontneed(fd, len); }
private:
std::atomic<int> m_bytesWritten{0};
};
//////////////////////////////////////////////////////////////////////
}
#endif
|