1 files changed, 100 insertions, 0 deletions
diff --git a/usr/src/uts/common/sys/signalfd.h b/usr/src/uts/common/sys/signalfd.h
new file mode 100644
index 0000000000..2661d5a05f
--- /dev/null
+++ b/usr/src/uts/common/sys/signalfd.h
@@ -0,0 +1,100 @@
+/*
+ * This file and its contents are supplied under the terms of the
+ * Common Development and Distribution License ("CDDL"), version 1.0.
+ * You may only use this file in accordance with the terms of version
+ * 1.0 of the CDDL.
+ *
+ * A full copy of the text of the CDDL should have accompanied this
+ * source.  A copy of the CDDL is also available via the Internet at
+ * http://www.illumos.org/license/CDDL.
+ */
+
+/*
+ * Copyright 2015 Joyent, Inc.
+ */
+
+/*
+ * Header file to support the signalfd facility. Note that this facility
+ * is designed to be binary compatible with the Linux signalfd facility, modulo
+ * the signals themselves; values for constants here should therefore exactly
+ * match those found in Linux, and this facility shouldn't be extended
+ * independently of Linux.
+ */
+
+#ifndef _SYS_SIGNALFD_H
+#define	_SYS_SIGNALFD_H
+
+#include <sys/types.h>
+
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
+/*
+ * To assure binary compatibility with Linux, these values are fixed at their
+ * Linux equivalents, not their native ones.
+ */
+#define	SFD_CLOEXEC		02000000		/* LX_O_CLOEXEC */
+#define	SFD_NONBLOCK		04000			/* LX_O_NONBLOCK */
+
+/*
+ * These ioctl values are specific to the native implementation; applications
+ * shouldn't be using them directly, and they should therefore be safe to
+ * change without breaking apps.
+ */
+#define	SIGNALFDIOC		(('s' << 24) | ('f' << 16) | ('d' << 8))
+#define	SIGNALFDIOC_MASK	(SIGNALFDIOC | 1)	/* set mask */
+
+typedef struct signalfd_siginfo {
+	uint32_t ssi_signo;	/* signal from signal.h */
+	int32_t  ssi_errno;	/* error from errno.h */
+	int32_t  ssi_code;	/* signal code */
+	uint32_t ssi_pid;	/* PID of sender */
+	uint32_t ssi_uid;	/* real UID of sender */
+	int32_t  ssi_fd;	/* File descriptor (SIGIO) */
+	uint32_t ssi_tid;	/* unused */
+	uint32_t ssi_band;	/* band event (SIGIO) */
+	uint32_t ssi_overrun;	/* unused */
+	uint32_t ssi_trapno;	/* trap number that caused signal */
+	int32_t  ssi_status;	/* exit status or signal (SIGCHLD) */
+	int32_t  ssi_int;	/* unused */
+	uint64_t ssi_ptr;	/* unused */
+	uint64_t ssi_utime;	/* user CPU time consumed (SIGCHLD) */
+	uint64_t ssi_stime;	/* system CPU time consumed (SIGCHLD) */
+	uint64_t ssi_addr;	/* address that generated signal */
+	uint8_t  ssi_pad[48];	/* Pad size to 128 bytes to allow for */
+				/* additional fields in the future. */
+} signalfd_siginfo_t;
+
+#ifndef _KERNEL
+
+extern int signalfd(int, const sigset_t *, int);
+
+#else
+
+#define	SIGNALFDMNRN_SIGNALFD	0
+#define	SIGNALFDMNRN_CLONE	1
+
+typedef struct sigfd_wake_list {
+	list_node_t sigfd_wl_lst;
+	void *sigfd_wl_state;
+} sigfd_wake_list_t;
+
+/*
+ * This holds the proc_t state for a process which is using signalfd.
+ */
+typedef struct sigfd_proc_state {
+	void (*sigfd_pollwake_cb)(void *, int);
+	list_t sigfd_list;
+} sigfd_proc_state_t;
+
+
+extern void (*sigfd_exit_helper)();
+
+#endif /* _KERNEL */
+
+#ifdef	__cplusplus
+}
+#endif
+
+#endif	/* _SYS_SIGNALFD_H */