timeb

2 files changed, 39 insertions, 0 deletions

diff --git a/src/library.js b/src/library.js
index 1bdd840d..93d54d68 100644
--- a/src/library.js
+++ b/src/library.js
@@ -5886,6 +5886,26 @@ LibraryManager.library = {
   },
 
   // ==========================================================================
+  // sys/timeb.h
+  // ==========================================================================
+
+  __timeb_struct_layout: Runtime.generateStructInfo([
+    ['i32', 'time'],
+    ['i16', 'millitm'],
+    ['i16', 'timezone'],
+    ['i16', 'dstflag']
+  ]),
+  ftime__deps: ['__timeb_struct_layout'],
+  ftime: function(p) {
+    var millis = Date.now();
+    {{{ makeSetValue('p', '___timeb_struct_layout.time', 'Math.floor(millis/1000)', 'i32') }}};
+    {{{ makeSetValue('p', '___timeb_struct_layout.millitm', 'millis % 1000', 'i16') }}};
+    {{{ makeSetValue('p', '___timeb_struct_layout.timezone', '0', 'i16') }}}; // TODO
+    {{{ makeSetValue('p', '___timeb_struct_layout.dstflag', '0', 'i16') }}}; // TODO
+    return 0;
+  },
+
+  // ==========================================================================
   // sys/times.h
   // ==========================================================================
 
diff --git a/tests/runner.py b/tests/runner.py
index 63f435b2..ef5c8b68 100755
--- a/tests/runner.py
+++ b/tests/runner.py
@@ -3605,6 +3605,25 @@ The current type of b is: 9
                    extra_emscripten_args=['-H', 'libc/time.h'])
                    #extra_emscripten_args=['-H', 'libc/fcntl.h,libc/sys/unistd.h,poll.h,libc/math.h,libc/langinfo.h,libc/time.h'])
 
+    def test_timeb(self):
+      # Confirms they are called in reverse order
+      src = r'''
+        #include <stdio.h>
+        #include <assert.h>
+        #include <sys/timeb.h>
+
+        int main() {
+          timeb tb;
+          tb.timezone = 1;
+          printf("*%d\n", ftime(&tb));
+          assert(tb.time > 10000);
+          assert(tb.timezone == 0);
+          assert(tb.dstflag == 0);
+          return 0;
+        }
+        '''
+      self.do_run(src, '*0\n')
+
     def test_intentional_fault(self):
       # Some programs intentionally segfault themselves, we should compile that into a throw
       src = r'''