From 96e6579454d896c92b04926766fc14c98fdf9249 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=A9r=C3=B4me=20Duval?= <korli@users.berlios.de>
Date: Thu, 8 Sep 2005 12:26:16 +0000
Subject: [PATCH] added a libroot sigsuspend, kernel support isn't implemented
 (fixed partly bug #48)

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14129 a95241bf-73f2-0310-859d-f6bbb57e9c96
---
 headers/private/kernel/ksignal.h             |  1 +
 headers/private/kernel/syscalls.h            |  7 +++---
 src/system/kernel/signal.c                   | 13 +++++++++++
 src/system/libroot/posix/signal/Jamfile      |  1 +
 src/system/libroot/posix/signal/sigsuspend.c | 23 ++++++++++++++++++++
 5 files changed, 42 insertions(+), 3 deletions(-)
 create mode 100644 src/system/libroot/posix/signal/sigsuspend.c

diff --git a/headers/private/kernel/ksignal.h b/headers/private/kernel/ksignal.h
index 77a4840a15..733864d7d2 100644
--- a/headers/private/kernel/ksignal.h
+++ b/headers/private/kernel/ksignal.h
@@ -29,6 +29,7 @@ extern int _user_send_signal(pid_t tid, uint sig);
 extern int _user_sigprocmask(int how, const sigset_t *set, sigset_t *oldSet);
 extern int _user_sigaction(int sig, const struct sigaction *action, struct sigaction *oldAction);
 extern bigtime_t _user_set_alarm(bigtime_t time, uint32 mode);
+extern int _user_sigsuspend(const sigset_t *mask);
 
 #ifdef __cplusplus
 }	// extern "C"
diff --git a/headers/private/kernel/syscalls.h b/headers/private/kernel/syscalls.h
index 39e32864fc..44662dd478 100644
--- a/headers/private/kernel/syscalls.h
+++ b/headers/private/kernel/syscalls.h
@@ -99,10 +99,11 @@ extern status_t		_kern_get_next_team_info(int32 *cookie, team_info *info);
 extern status_t		_kern_get_team_usage_info(team_id team, int32 who, team_usage_info *info, size_t size);
 
 // signal functions
-extern int			_kern_send_signal(pid_t tid, uint sig);
-extern int			_kern_sigprocmask(int how, const sigset_t *set, sigset_t *oldSet);
-extern int			_kern_sigaction(int sig, const struct sigaction *action, struct sigaction *oldAction);
+extern int		_kern_send_signal(pid_t tid, uint sig);
+extern int		_kern_sigprocmask(int how, const sigset_t *set, sigset_t *oldSet);
+extern int		_kern_sigaction(int sig, const struct sigaction *action, struct sigaction *oldAction);
 extern bigtime_t	_kern_set_alarm(bigtime_t time, uint32 mode);
+extern int		_kern_sigsuspend(const sigset_t *mask);
 
 // image functions
 extern image_id		_kern_register_image(image_info *info, size_t size);
diff --git a/src/system/kernel/signal.c b/src/system/kernel/signal.c
index cab85f97ad..69b07d07c7 100644
--- a/src/system/kernel/signal.c
+++ b/src/system/kernel/signal.c
@@ -598,3 +598,16 @@ _user_sigaction(int signal, const struct sigaction *userAction, struct sigaction
 	return status;
 }
 
+
+int
+_user_sigsuspend(const sigset_t *mask) {
+	sigset_t set;
+	if (mask == NULL)
+		return B_BAD_VALUE;
+
+	if (user_memcpy(&set, mask, sizeof(sigset_t)) < B_OK)
+		return B_BAD_ADDRESS;
+
+	// Todo : implement
+	return EINVAL;	
+}
diff --git a/src/system/libroot/posix/signal/Jamfile b/src/system/libroot/posix/signal/Jamfile
index dfc599dafc..c1676924d8 100644
--- a/src/system/libroot/posix/signal/Jamfile
+++ b/src/system/libroot/posix/signal/Jamfile
@@ -8,6 +8,7 @@ KernelMergeObject posix_signal.o :
 	signal.c
 	sigprocmask.c
 	sigset.c
+	sigsuspend.c
 	strsignal.c
 	: -fPIC -DPIC
 	;
diff --git a/src/system/libroot/posix/signal/sigsuspend.c b/src/system/libroot/posix/signal/sigsuspend.c
new file mode 100644
index 0000000000..35e7c0f35e
--- /dev/null
+++ b/src/system/libroot/posix/signal/sigsuspend.c
@@ -0,0 +1,23 @@
+/*
+ *  Copyright (c) 2005, Haiku Project. All rights reserved.
+ *  Distributed under the terms of the Haiku license.
+ *
+ *  Author(s):
+ *  Jérôme Duval
+ */
+
+#include <errno.h>
+#include <syscalls.h>
+#include <signal.h>
+
+int
+sigsuspend(const sigset_t *mask)
+{
+	int err = _kern_sigsuspend(mask);
+	if (err < B_OK) {
+		errno = err;
+		return -1;
+	}
+	return 0;
+}
+