14f52dfbbSDag-Erling Smørgrav /* Placed in the public domain */ 24f52dfbbSDag-Erling Smørgrav 3*47dd1d1bSDag-Erling Smørgrav #include "includes.h" 4*47dd1d1bSDag-Erling Smørgrav 54f52dfbbSDag-Erling Smørgrav #ifndef HAVE_GETPAGESIZE 64f52dfbbSDag-Erling Smørgrav 74f52dfbbSDag-Erling Smørgrav #include <unistd.h> 84f52dfbbSDag-Erling Smørgrav #include <limits.h> 94f52dfbbSDag-Erling Smørgrav 104f52dfbbSDag-Erling Smørgrav int getpagesize(void)114f52dfbbSDag-Erling Smørgravgetpagesize(void) 124f52dfbbSDag-Erling Smørgrav { 134f52dfbbSDag-Erling Smørgrav #if defined(HAVE_SYSCONF) && defined(_SC_PAGESIZE) 144f52dfbbSDag-Erling Smørgrav long r = sysconf(_SC_PAGESIZE); 154f52dfbbSDag-Erling Smørgrav if (r > 0 && r < INT_MAX) 164f52dfbbSDag-Erling Smørgrav return (int)r; 174f52dfbbSDag-Erling Smørgrav #endif 184f52dfbbSDag-Erling Smørgrav /* 194f52dfbbSDag-Erling Smørgrav * This is at the lower end of common values and appropriate for 204f52dfbbSDag-Erling Smørgrav * our current use of getpagesize() in recallocarray(). 214f52dfbbSDag-Erling Smørgrav */ 224f52dfbbSDag-Erling Smørgrav return 4096; 234f52dfbbSDag-Erling Smørgrav } 244f52dfbbSDag-Erling Smørgrav 254f52dfbbSDag-Erling Smørgrav #endif /* HAVE_GETPAGESIZE */ 26