close all streams on exit

src/win/win.h

@@ -11,3 +11,4 @@ void _setup_timer(void);
 void _setup_eh();
 void _setup_heap();
 void _setup_io();
+void _close_io();

src/win/win_environment.c

@@ -87,9 +87,21 @@ void mainCRTStartup() {
     int exit_code = main(argc, args);
 
     // we call exit because we want atexit routines run
+    // and all the file handles to be freed
     exit(exit_code);
 }
 
+_Noreturn void exit(int status) {
+    for (int i = atexit_func_count; i--;) {
+        atexit_funcs[i]();
+    }
+    _close_io();
+    ExitProcess(status);
+}
+
+_Noreturn void _Exit(int status) {
+    ExitProcess(status);
+}
 
 _Noreturn void abort(void) {
     raise(SIGABRT);
@@ -104,17 +116,6 @@ int atexit(void (*func)(void)) {
     return 1;
 }
 
-_Noreturn void exit(int status) {
-    for (int i = atexit_func_count; i--;) {
-        atexit_funcs[i]();
-    }
-    ExitProcess(status);
-}
-
-_Noreturn void _Exit(int status) {
-    ExitProcess(status);
-}
-
 char *getenv(const char *name) {
     // The string pointed to shall not be modified by the program, but may be
     // overwritten by a subsequent call to the getenv function

src/win/win_stdio.c

@@ -112,6 +112,13 @@ void _setup_io() {
     stdin  = new_file(hstdin,  NULL, STR_R, 0, 0, _IONBF, 0, NULL);
 }
 
+void _close_io() {
+    while(file_list_last != NULL) {
+        fflush(file_list_last);
+        dispose_file(file_list_last);
+    }
+}
+
 int setvbuf(
     FILE *restrict stream,
     char *restrict buf,
@@ -139,6 +146,16 @@ int setvbuf(
     return 0;
 }
 
+int fflush(FILE *stream) {
+    if(mode == _IOFBF) {
+
+    }
+    else if(mode == _IONBF) {
+
+    }
+    return 0;
+}
+
 void setbuf(FILE *restrict stream, char *restrict buf) {
     if(buf != NULL)
         setvbuf(stream, buf, _IOFBF, BUFSIZ);