1 files changed, 18 insertions, 16 deletions
diff --git a/misc/examples/coread.c b/misc/examples/coread.c
index 0a7f4816..a13f6be5 100644
--- a/misc/examples/coread.c
+++ b/misc/examples/coread.c
@@ -1,39 +1,41 @@
+#define i_implement
 #include <stc/cstr.h>
 #include <stc/algo/coroutine.h>
 #include <errno.h>
 
 // Read file line by line using coroutines:
 
-struct file_nextline {
+struct file_read {
     const char* filename;
     int cco_state;
     FILE* fp;
     cstr line;
 };
 
-bool file_nextline(struct file_nextline* U)
+int file_read(struct file_read* g)
 {
-    cco_begin(U)
-        U->fp = fopen(U->filename, "r");
-        U->line = cstr_init();
+    cco_routine(g) {
+        g->fp = fopen(g->filename, "r");
+        if (!g->fp) cco_return;
+        g->line = cstr_init();
 
-        while (cstr_getline(&U->line, U->fp))
-            cco_yield(true);
+        cco_await(!cstr_getline(&g->line, g->fp));
 
-        cco_final: // this label is required.
-            printf("finish\n");
-            cstr_drop(&U->line);
-            fclose(U->fp);
-    cco_end(false);
+        cco_cleanup:
+        printf("finish\n");
+        cstr_drop(&g->line);
+        if (g->fp) fclose(g->fp);
+    }
+    return 0;
 }
 
 int main(void)
 {
-    struct file_nextline it = {__FILE__};
+    struct file_read g = {__FILE__};
     int n = 0;
-    while (file_nextline(&it))
+    cco_block_on(file_read(&g))
     {
-        printf("%3d %s\n", ++n, cstr_str(&it.line));
-        //if (n == 10) cco_stop(&it);
+        printf("%3d %s\n", ++n, cstr_str(&g.line));
+        //if (n == 10) cco_stop(&g);
     }
 }