Merge branch 'stclib:master' into modifiedHEADmodified

1 files changed, 41 insertions, 0 deletions

diff --git a/misc/examples/coroutines/coread.c b/misc/examples/coroutines/coread.c
new file mode 100644
index 00000000..6d3acdd7
--- /dev/null
+++ b/misc/examples/coroutines/coread.c
@@ -0,0 +1,41 @@
+#define i_implement
+#include <stc/cstr.h>
+#include <stc/coroutine.h>
+#include <errno.h>
+
+// Read file line by line using coroutines:
+
+struct file_read {
+    const char* filename;
+    int cco_state;
+    FILE* fp;
+    cstr line;
+};
+
+int file_read(struct file_read* g)
+{
+    cco_routine(g) {
+        g->fp = fopen(g->filename, "r");
+        if (!g->fp) cco_return;
+        g->line = cstr_init();
+
+        cco_await(!cstr_getline(&g->line, g->fp));
+
+        cco_final:
+        printf("finish\n");
+        cstr_drop(&g->line);
+        if (g->fp) fclose(g->fp);
+    }
+    return 0;
+}
+
+int main(void)
+{
+    struct file_read g = {__FILE__};
+    int n = 0;
+    cco_blocking_call(file_read(&g))
+    {
+        printf("%3d %s\n", ++n, cstr_str(&g.line));
+        //if (n == 10) cco_stop(&g);
+    }
+}