hphp/util/compatibility.h

   1 /*
   2    +----------------------------------------------------------------------+
   3    | HipHop for PHP                                                       |
   4    +----------------------------------------------------------------------+
   5    | Copyright (c) 2010-present Facebook, Inc. (http://www.facebook.com)  |
   6    +----------------------------------------------------------------------+
   7    | This source file is subject to version 3.01 of the PHP license,      |
   8    | that is bundled with this package in the file LICENSE, and is        |
   9    | available through the world-wide-web at the following url:           |
  10    | http://www.php.net/license/3_01.txt                                  |
  11    | If you did not receive a copy of the PHP license and are unable to   |
  12    | obtain it through the world-wide-web, please send a note to          |
  13    | license@php.net so we can mail you a copy immediately.               |
  14    +----------------------------------------------------------------------+
  15 */
  16 #ifndef incl_HPHP_COMPATIBILITY_H_
  17 #define incl_HPHP_COMPATIBILITY_H_
  18
  19 #include <cstdint>
  20 #include <string>
  21 #include <time.h>
  22
  23 #include <folly/Singleton.h>
  24 #include <folly/portability/Unistd.h>
  25
  26 #include "hphp/util/portability.h"
  27
  28 namespace HPHP {
  29
  30 //////////////////////////////////////////////////////////////////////
  31 template <typename T>
  32 std::shared_ptr<T> getSingleton() {
  33   return folly::Singleton<T>::try_get();
  34 }
  35
  36 #define PHP_DIR_SEPARATOR '/'
  37
  38 #if defined(__APPLE__) || defined(__FreeBSD__)
  39 char *strndup(const char* str, size_t len);
  40 int dprintf(int fd, ATTRIBUTE_PRINTF_STRING const char *format, ...)
  41   ATTRIBUTE_PRINTF(2,3);
  42
  43 int pipe2(int pipefd[2], int flags);
  44 #endif
  45
  46 /*
  47  * Drop the cached pages associated with the file from the file system
  48  * cache, if supported on our build target.
  49  *
  50  * Returns: -1 on error.
  51  */
  52 int fadvise_dontneed(int fd, off_t len);
  53 int advise_out(const std::string& fileName);
  54
  55 #ifdef _MSC_VER
  56 typedef struct {
  57   const char *dli_fname;
  58   void *dli_fbase;
  59   const char *dli_sname;
  60   void *dli_saddr;
  61 } Dl_info;
  62
  63 int dladdr(const void *addr, Dl_info *info);
  64 int backtrace(void **buffer, int size);
  65 #endif
  66
  67 //////////////////////////////////////////////////////////////////////
  68
  69 }
  70
  71 #endif