Update sleep function

2 files changed, 14 insertions, 3 deletions

diff --git a/src/core/include/engine/engine.h b/src/core/include/engine/engine.h
index ec716be..0d5d2bc 100644
--- a/src/core/include/engine/engine.h
+++ b/src/core/include/engine/engine.h
@@ -46,7 +46,7 @@ void render_adjust_zoom(f32 diff);
 void render_add_unit(RenderUnit* u);
 
 /* move this */
-void delay(uint32_t ms);
+void delay(uint64_t ms);
 
 // file operations
 isize f_get_sz(FILE* f);
diff --git a/src/core/src/loop.c b/src/core/src/loop.c
index 567020a..95a405e 100644
--- a/src/core/src/loop.c
+++ b/src/core/src/loop.c
@@ -1,3 +1,4 @@
+#include <time.h>
 #include <errno.h>
 #include <stdlib.h>
 #include <string.h>
@@ -50,12 +51,22 @@ i32 nproc(void) {
   return get_nprocs();
 }
 
-void delay( uint32_t ms )
+void delay( uint64_t ms )
 {
 #if defined(_WIN32) || defined(__WIN32__) || defined(WIN32)
     Sleep( ms );
 #else
-    usleep( ms * 1000 );
+    struct timespec ts = {
+      .tv_sec = ms / 1000,
+      .tv_nsec = ms * 1000000
+    };
+    struct timespec rem = {0,0};
+    while(nanosleep(&ts, &rem)) {
+      WARN("nanosleep didn't sleep full duration!");
+      ts = rem;
+      rem = (struct timespec){0,0};
+    }
+    //usleep( ms * 1000 );
 #endif
 }