hphp/runtime/ext/gd/libgd/gdhelpers.h

   1 #ifndef GDHELPERS_H
   2 #define GDHELPERS_H 1
   3
   4 #include <sys/types.h>
   5 #include "php.h"
   6
   7 #include "hphp/runtime/base/memory-manager.h"
   8
   9 /* TBB: strtok_r is not universal; provide an implementation of it. */
  10
  11 extern char *gd_strtok_r(char *s, char *sep, char **state);
  12
  13 /* Check for request OOM.  Call before allocating a lot of memory. */
  14 inline bool precheckOOM(size_t allocsz) {
  15   return allocsz > HPHP::kMaxSmallSize && HPHP::MM().preAllocOOM(allocsz);
  16 }
  17
  18 /* These functions wrap memory management. gdFree is
  19   in gd.h, where callers can utilize it to correctly
  20   free memory allocated by these functions with the
  21   right version of free(). */
  22 #define gdCalloc(nmemb, size) ecalloc(nmemb, size)
  23 #define gdMalloc(size)        emalloc(size)
  24 #define gdRealloc(ptr, size)  erealloc(ptr, size)
  25 #define gdEstrdup(ptr)        estrdup(ptr)
  26 #define gdFree(ptr)           efree(ptr)
  27 #define gdPMalloc(ptr)        pemalloc(ptr, 1)
  28 #define gdPFree(ptr)          pefree(ptr, 1)
  29 #define gdPEstrdup(ptr)       pestrdup(ptr, 1)
  30
  31 /* Returns nonzero if multiplying the two quantities will
  32   result in integer overflow. Also returns nonzero if
  33   either quantity is negative. By Phil Knirsch based on
  34   netpbm fixes by Alan Cox. */
  35
  36 int overflow2(int a, int b);
  37
  38 #ifdef ZTS
  39 #define gdMutexDeclare(x) MUTEX_T x
  40 #define gdMutexSetup(x) x = tsrm_mutex_alloc()
  41 #define gdMutexShutdown(x) tsrm_mutex_free(x)
  42 #define gdMutexLock(x) tsrm_mutex_lock(x)
  43 #define gdMutexUnlock(x) tsrm_mutex_unlock(x)
  44 #else
  45 #define gdMutexDeclare(x)
  46 #define gdMutexSetup(x)
  47 #define gdMutexShutdown(x)
  48 #define gdMutexLock(x)
  49 #define gdMutexUnlock(x)
  50 #endif
  51
  52 #endif /* GDHELPERS_H */