1 2 #include <stdlib.h> 3 #include <stdio.h> 4 #include <unistd.h> 5 #include <assert.h> 6 7 int main ( void ) 8 { 9 void* a[10]; 10 int i; 11 unsigned long pszB = sysconf(_SC_PAGE_SIZE); 12 assert(sizeof(long) == sizeof(void*)); 13 assert(pszB == 4096 || pszB == 16384 || pszB == 65536); 14 15 for (i = 0; i < 10; i++) { 16 a[i] = valloc(11111 * (i+1)); 17 /* check valloc really is returning page-aligned memory */ 18 assert( (((unsigned long)(a[i])) % pszB) == 0 ); 19 // printf("I acquire %p\n", a[i]); 20 } 21 for (i = 0; i < 10; i++) { 22 // printf("I release %p\n", a[i]); 23 free(a[i]); 24 } 25 free(a[9]); 26 return 0; 27 } 28
