Initial version.

1 files changed, 74 insertions, 0 deletions

diff --git a/src/nxt_signal.h b/src/nxt_signal.h
new file mode 100644
index 00000000..4141f39f
--- /dev/null
+++ b/src/nxt_signal.h
@@ -0,0 +1,74 @@
+
+/*
+ * Copyright (C) Igor Sysoev
+ * Copyright (C) NGINX, Inc.
+ */
+
+#ifndef _NXT_UNIX_SIGNAL_H_INCLUDED_
+#define _NXT_UNIX_SIGNAL_H_INCLUDED_
+
+
+typedef struct nxt_event_sig_s  nxt_event_sig_t;
+
+struct nxt_event_sig_s {
+    int                         signo;
+    nxt_work_handler_t          handler;
+    const char                  *name;
+};
+
+#define nxt_event_signal(sig, handler)                                        \
+    { sig, handler, #sig }
+
+#define nxt_event_signal_end                                                  \
+    { 0, NULL, NULL }
+
+
+typedef struct {
+    /* Used by epoll and eventport. */
+    nxt_work_handler_t          handler;
+
+    const nxt_event_sig_t       *sigev;
+    sigset_t                    sigmask;
+
+#if (NXT_THREADS)
+    /* Used by the signal thread. */
+    nxt_pid_t                   process;
+    nxt_thread_handle_t         thread;
+#endif
+} nxt_event_signals_t;
+
+
+nxt_event_signals_t *nxt_event_engine_signals(const nxt_event_sig_t *sigev);
+
+#if (NXT_THREADS)
+
+#define                                                                       \
+nxt_event_engine_signals_start(engine)                                        \
+    nxt_signal_thread_start(engine)
+
+#define                                                                       \
+nxt_event_engine_signals_stop(engine)                                         \
+    nxt_signal_thread_stop(engine)
+
+
+NXT_EXPORT nxt_int_t nxt_signal_thread_start(nxt_event_engine_t *engine);
+NXT_EXPORT void nxt_signal_thread_stop(nxt_event_engine_t *engine);
+
+#else /* !(NXT_THREADS) */
+
+#define                                                                       \
+nxt_event_engine_signals_start(engine)                                        \
+    nxt_signal_handlers_start(engine)
+
+#define                                                                       \
+nxt_event_engine_signals_stop(engine)                                         \
+    nxt_signal_handlers_stop(engine)
+
+
+NXT_EXPORT nxt_int_t nxt_signal_handlers_start(nxt_event_engine_t *engine);
+NXT_EXPORT void nxt_signal_handlers_stop(nxt_event_engine_t *engine);
+
+#endif
+
+
+#endif /* _NXT_UNIX_SIGNAL_H_INCLUDED_ */