[NaCl SDK} Add EventListener and EventEmitter to support epoll.

native_client_sdk/src/libraries/nacl_io/kernel_wrap.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_WRAP_H_
 #define LIBRARIES_NACL_IO_KERNEL_WRAP_H_
 
 #include <sys/types.h>
+#include <stdint.h>
 #include <stdlib.h>
+
 #include "nacl_io/ostypes.h"
 #include "nacl_io/osutime.h"
 #include "sdk_util/macros.h"
 
 #if defined(__GLIBC__)
 #include <sys/cdefs.h>
 #define NOTHROW __THROW
 #else
 #define NOTHROW
 #endif
@@ skipping 12 matching lines @@
 #define NAME(x) x
 #endif
 
 EXTERN_C_BEGIN
 
 void kernel_wrap_init();
 
 int NAME(access)(const char* path, int amode) NOTHROW;
 int NAME(chdir)(const char* path) NOTHROW;
 int NAME(chmod)(const char* path, chmod_mode_t mode) NOTHROW;
-int chown(const char* path, uid_t owner, gid_t group);
+int chown(const char* path, uid_t owner, gid_t group) NOTHROW;
 int NAME(close)(int fd);
 int NAME(dup)(int oldfd) NOTHROW;
 int NAME(dup2)(int oldfd, int newfd) NOTHROW;
-int fchown(int fd, uid_t owner, gid_t group);
+int fchown(int fd, uid_t owner, gid_t group) NOTHROW;
 #if defined(WIN32)
 int _fstat32(int fd, struct _stat32* buf);
 int _fstat64(int fd, struct _stat64* buf);
 int _fstat32i64(int fd, struct _stat32i64* buf);
 int _fstat64i32(int fd, struct _stat64i32* buf);
 #else
 struct stat;
 int fstat(int fd, struct stat* buf) NOTHROW;
 #endif
 int fsync(int fd);
 int ftruncate(int fd, off_t length) NOTHROW;
 char* NAME(getcwd)(char* buf, getcwd_size_t size) NOTHROW;
 char* getwd(char* buf) NOTHROW;
 int getdents(int fd, void* buf, unsigned int count) NOTHROW;
 int ioctl(int d, int request, char* argp) NOTHROW;
 int NAME(isatty)(int fd) NOTHROW;
-int lchown(const char* path, uid_t owner, gid_t group);
+int lchown(const char* path, uid_t owner, gid_t group) NOTHROW;
 int link(const char* oldpath, const char* newpath) NOTHROW;
 off_t NAME(lseek)(int fd, off_t offset, int whence) NOTHROW;
 #if defined(WIN32)
 int _mkdir(const char* path);
 #else
 int mkdir(const char* path, mode_t mode) NOTHROW;
 #endif
 void* mmap(void* addr, size_t length, int prot, int flags, int fd,
            off_t offset) NOTHROW;
 int mount(const char* source, const char* target, const char* filesystemtype,
@@ skipping 10 matching lines @@
 int _stat64i32(const char* path, struct _stat64i32* buf);
 #else
 int stat(const char* path, struct stat* buf) NOTHROW;
 #endif
 int symlink(const char* oldpath, const char* newpath) NOTHROW;
 int umount(const char* path) NOTHROW;
 int NAME(unlink)(const char* path) NOTHROW;
 int utime(const char* filename, const struct utimbuf* times);
 read_ssize_t NAME(write)(int fd, const void* buf, size_t nbyte);
 
+uint64_t usec_since_epoch();
+
 EXTERN_C_END
 
 #endif  // LIBRARIES_NACL_IO_KERNEL_WRAP_H_