Merge branch 'incoming'

1 files changed, 57 insertions, 0 deletions

diff --git a/tests/module/test_stdin.c b/tests/module/test_stdin.c
new file mode 100644
index 00000000..4838d466
--- /dev/null
+++ b/tests/module/test_stdin.c
@@ -0,0 +1,57 @@
+#include <errno.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#if EMSCRIPTEN
+#include <emscripten.h>
+#endif
+
+int line = 0;
+
+void main_loop(void *arg)
+{
+  char str[10] = {0};
+  int ret;
+
+  errno = 0;
+  while (errno != EAGAIN) {
+    if (line == 0) {
+      ret = fgetc(stdin);
+      if (ret != EOF) putc(ret, stdout);
+      if (ret == '\n') line++;
+    } else if (line > 0) {
+      ret = scanf("%10s", str);
+      if (ret > 0) puts(str);
+    }
+
+    if (ferror(stdin) && errno != EAGAIN) {
+      puts("error");
+      exit(EXIT_FAILURE);
+    }
+
+    if (feof(stdin)) {
+      puts("eof");
+      exit(EXIT_SUCCESS);
+    }
+
+    clearerr(stdin);
+  }
+}
+
+int main(int argc, char const *argv[])
+{
+  fcntl(STDIN_FILENO, F_SETFL, O_NONBLOCK);
+
+  // SM shell doesn't implement an event loop and therefor doesn't support
+  // emscripten_set_main_loop. However, its stdin reads are sync so it
+  // should exit out after calling main_loop once.
+  main_loop(NULL);
+
+#if EMSCRIPTEN
+  emscripten_set_main_loop(main_loop, 60, 0);
+#else
+  while (1) main_loop(NULL); sleep(1);
+#endif
+  return 0;
+}
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