update

os_linux.cpp

@@ -1,21 +1,24 @@
 #ifndef OS_IMPL_LINUX_CPP
 #define OS_IMPL_LINUX_CPP
 
+#include "os.h"
+
 #include <sys/mman.h>
 #include <sys/stat.h>
-#include "os.h"
 
 void *os_alloc(size_t capacity) {
     return mmap(0, capacity, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
 }
 
-void os_reserve(void *ptr) {
+void os_commit(void *ptr) {
 }
 
 void os_decommit(void *ptr) {
 }
 
-void os_free(void *ptr) {
+void os_free(void *ptr, size_t size) {
+    int err = munmap(ptr, size);
+    Assert(err != -1);
 }
 
 #endif