import winsup-2000-02-17 snapshot

winsup/cygwin/include/sys/wait.h

@@ -0,0 +1,63 @@
+#ifndef _SYS_WAIT_H
+#define _SYS_WAIT_H
+
+#include <sys/types.h>
+#include <sys/resource.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define WNOHANG 1
+#define WUNTRACED 2
+
+/* A status looks like:
+      <2 bytes info> <2 bytes code>
+
+      <code> == 0, child has exited, info is the exit value
+      <code> == 1..7e, child has exited, info is the signal number.
+      <code> == 7f, child has stopped, info was the signal number.
+      <code> == 80, there was a core dump.
+*/
+
+#define WIFEXITED(w)	(((w) & 0xff) == 0)
+#define WIFSIGNALED(w)	(((w) & 0x7f) > 0 && (((w) & 0x7f) < 0x7f))
+#define WIFSTOPPED(w)	(((w) & 0xff) == 0x7f)
+#define WEXITSTATUS(w)	(((w) >> 8) & 0xff)
+#define WTERMSIG(w)	((w) & 0x7f)
+#define WSTOPSIG	WEXITSTATUS
+
+pid_t wait (int *);
+pid_t waitpid (pid_t, int *, int);
+pid_t wait3 (int *__status, int __options, struct rusage *__rusage);
+pid_t wait4 (pid_t __pid, int *__status, int __options, struct rusage *__rusage);
+
+union wait
+  {
+    int w_status;
+    struct
+      {
+	unsigned int __w_termsig:7; /* Terminating signal.  */
+	unsigned int __w_coredump:1; /* Set if dumped core.  */
+	unsigned int __w_retcode:8; /* Return code if exited normally.  */
+	unsigned int:16;
+      } __wait_terminated;
+    struct
+      {
+	unsigned int __w_stopval:8; /* W_STOPPED if stopped.  */
+	unsigned int __w_stopsig:8; /* Stopping signal.  */
+	unsigned int:16;
+      } __wait_stopped;
+  };
+
+#define	w_termsig	__wait_terminated.__w_termsig
+#define	w_coredump	__wait_terminated.__w_coredump
+#define	w_retcode	__wait_terminated.__w_retcode
+#define	w_stopsig	__wait_stopped.__w_stopsig
+#define	w_stopval	__wait_stopped.__w_stopval
+
+#ifdef __cplusplus
+};
+#endif
+
+#endif