Initial Contributionandroid-1.0

1 files changed, 124 insertions, 0 deletions

diff --git a/libc/include/signal.h b/libc/include/signal.h
new file mode 100644
index 0000000..bdda84f
--- /dev/null
+++ b/libc/include/signal.h
@@ -0,0 +1,124 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+#ifndef _SIGNAL_H_
+#define _SIGNAL_H_
+
+#include <sys/cdefs.h>
+#include <limits.h>		/* For LONG_BIT */
+#include <string.h>		/* For memset() */
+#include <sys/types.h>
+#include <asm/signal.h>
+
+#define __ARCH_SI_UID_T __kernel_uid32_t
+#include <asm/siginfo.h>
+#undef __ARCH_SI_UID_T
+
+__BEGIN_DECLS
+
+typedef int sig_atomic_t;
+
+/* crepy NIG / _NSIG handling, just to be safe */
+#ifndef NSIG
+#  define NSIG  _NSIG
+#endif
+#ifndef _NSIG
+#  define _NSIG  NSIG
+#endif
+
+extern const char * const sys_siglist[];
+
+static __inline__ int sigismember(sigset_t *set, int signum)
+{
+    unsigned long *local_set = (unsigned long *)set;
+    signum--;
+    return (int)((local_set[signum/LONG_BIT] >> (signum%LONG_BIT)) & 1);
+}
+
+
+static __inline__ int sigaddset(sigset_t *set, int signum)
+{
+    unsigned long *local_set = (unsigned long *)set;
+    signum--;
+    local_set[signum/LONG_BIT] |= 1UL << (signum%LONG_BIT);
+    return 0;
+}
+
+
+static __inline__ int sigdelset(sigset_t *set, int signum)
+{
+    unsigned long *local_set = (unsigned long *)set;
+    signum--;
+    local_set[signum/LONG_BIT] &= ~(1UL << (signum%LONG_BIT));
+    return 0;
+}
+
+
+static __inline__ int sigemptyset(sigset_t *set)
+{
+    memset(set, 0, sizeof *set);
+    return 0;
+}
+
+static __inline__ int sigfillset(sigset_t *set)
+{
+    memset(set, ~0, sizeof *set);
+    return 0;
+}
+
+
+/* compatibility types */
+typedef void  (*sig_t)(int);
+typedef sig_t sighandler_t;
+
+/* differentiater between sysv and bsd behaviour 8*/
+extern __sighandler_t sysv_signal(int, __sighandler_t);
+extern __sighandler_t bsd_signal(int, __sighandler_t);
+
+/* the default is bsd */
+static __inline__ __sighandler_t signal(int s, __sighandler_t f)
+{
+    return bsd_signal(s,f);
+}
+
+/* the syscall itself */
+extern __sighandler_t __signal(int, __sighandler_t, int);
+
+extern int sigprocmask(int, const sigset_t *, sigset_t *);
+extern int sigaction(int, const struct sigaction *, struct sigaction *);
+
+extern int sigpending(sigset_t *);
+extern int sigsuspend(const sigset_t *);
+extern int sigwait(const sigset_t *set, int *sig);
+
+extern int raise(int);
+extern int kill(pid_t, int);
+
+
+__END_DECLS
+
+#endif /* _SIGNAL_H_ */