[NaCl SDK] nacl_io: Add initial implementations of kill and signal

native_client_sdk/src/libraries/nacl_io/kernel_intercept.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef LIBRARIES_NACL_IO_KERNEL_INTERCEPT_H_
 #define LIBRARIES_NACL_IO_KERNEL_INTERCEPT_H_
 
 #include <ppapi/c/ppb.h>
 #include <ppapi/c/pp_instance.h>
 
+#include "nacl_io/ossignal.h"
 #include "nacl_io/ossocket.h"
 #include "nacl_io/osstat.h"
 #include "nacl_io/ostermios.h"
 #include "nacl_io/ostypes.h"
 #include "nacl_io/osutime.h"
 #include "sdk_util/macros.h"
 
 EXTERN_C_BEGIN
 
 // The kernel intercept module provides a C->C++ thunk between the libc
@@ skipping 47 matching lines @@
 int ki_utime(const char* filename, const struct utimbuf* times);
 
 int ki_poll(struct pollfd *fds, nfds_t nfds, int timeout);
 int ki_select(int nfds, fd_set* readfds, fd_set* writefds,
               fd_set* exceptfds, struct timeval* timeout);
 
 int ki_tcflush(int fd, int queue_selector);
 int ki_tcgetattr(int fd, struct termios* termios_p);
 int ki_tcsetattr(int fd, int optional_actions,
                  const struct termios *termios_p);
+int ki_kill(pid_t pid, int sig);
+sighandler_t ki_signal(int signum, sighandler_t handler);
+sighandler_t ki_sigset(int signum, sighandler_t handler);
 
 #ifdef PROVIDES_SOCKET_API
 // Socket Functions
 int ki_accept(int fd, struct sockaddr* addr, socklen_t* len);
 int ki_bind(int fd, const struct sockaddr* addr, socklen_t len);
 int ki_connect(int fd, const struct sockaddr* addr, socklen_t len);
 struct hostent* ki_gethostbyname(const char* name);
 int ki_getpeername(int fd, struct sockaddr* addr, socklen_t* len);
 int ki_getsockname(int fd, struct sockaddr* addr, socklen_t* len);
 int ki_getsockopt(int fd, int lvl, int optname, void* optval, socklen_t* len);
 int ki_listen(int fd, int backlog);
 ssize_t ki_recv(int fd, void* buf, size_t len, int flags);
 ssize_t ki_recvfrom(int fd, void* buf, size_t len, int flags,
                     struct sockaddr* addr, socklen_t* addrlen);
 ssize_t ki_recvmsg(int fd, struct msghdr* msg, int flags);
 ssize_t ki_send(int fd, const void* buf, size_t len, int flags);
 ssize_t ki_sendto(int fd, const void* buf, size_t len, int flags,
                   const struct sockaddr* addr, socklen_t addrlen);
 ssize_t ki_sendmsg(int fd, const struct msghdr* msg, int flags);
 int ki_setsockopt(int fd, int lvl, int optname, const void* optval,
                   socklen_t len);
 int ki_shutdown(int fd, int how);
 int ki_socket(int domain, int type, int protocol);
 int ki_socketpair(int domain, int type, int protocl, int* sv);
 #endif  // PROVIDES_SOCKET_API
 
 EXTERN_C_END
 
 #endif  // LIBRARIES_NACL_IO_KERNEL_INTERCEPT_H_