1 files changed, 22 insertions, 0 deletions
diff --git a/src/Program.c b/src/Program.c
index 2c6759e..65164c4 100644
--- a/src/Program.c
+++ b/src/Program.c
@@ -114,6 +114,28 @@ int wait_program(pid_t process_id) {
     return WEXITSTATUS(status);
 }
 
+bool wait_program_non_blocking(pid_t process_id, int *status) {
+    int s;
+    int wait_result = waitpid(process_id, &s, WNOHANG);
+    if(wait_result == -1) {
+        perror("waitpid failed");
+        *status = -errno;
+        return false;
+    } else if(wait_result == 0) {
+        /* the child process is still running */
+        *status = 0;
+        return false;
+    }
+
+    if(!WIFEXITED(s)) {
+        *status = -4;
+        return false;
+    }
+
+    *status = WEXITSTATUS(s);
+    return true;
+}
+
 int exec_program_async(const char **args, pid_t *result_process_id) {
     /* 1 arguments */
     if(args[0] == NULL)