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-rw-r--r--include/bits/wait.h22
1 files changed, 22 insertions, 0 deletions
diff --git a/include/bits/wait.h b/include/bits/wait.h
new file mode 100644
index 00000000..5e346276
--- /dev/null
+++ b/include/bits/wait.h
@@ -0,0 +1,22 @@
+#ifndef __BITS_WAIT_H
+#define __BITS_WAIT_H
+
+#ifndef __BITS_WAIT_H_
+#error "Internal header — include the public API header instead."
+#else
+#undef __BITS_WAIT_H_
+#endif
+
+#define WNOHANG 0x00000001
+#define WUNTRACED 0x00000002
+
+#define WEXITSTATUS(__status) (((__status) & 0xff00) >> 8)
+#define WCOREDUMP(__status) ((__status) & 0x80)
+#define WTERMSIG(__status) ((__status) & 0x7f)
+#define WSTOPSIG(__status) WEXITSTATUS(__status)
+#define WIFEXITED(__status) (WTERMSIG(__status) == 0)
+#define WIFSTOPPED(__status) (((__status) & 0xff) == 0x7f)
+#define WIFSIGNALED(__status) (((__status) & 0xffff) - 1U < 0xffu)
+#define WSTOPSIG(__status) WEXITSTATUS(__status)
+
+#endif