update

[l4.git] / l4 / pkg / libc_backends / lib / l4re_file / file.cc

diff --git a/l4/pkg/libc_backends/lib/l4re_file/file.cc b/l4/pkg/libc_backends/lib/l4re_file/file.cc
index fc4f2a8a01e0f5a8b1ead1393ed42fa29ca3a154..46a273c401a0068f5fa74d3833fdc50bbeefaa61 100644 (file)
--- a/l4/pkg/libc_backends/lib/l4re_file/file.cc
+++ b/l4/pkg/libc_backends/lib/l4re_file/file.cc
@@ -52,7 +52,6 @@ ssize_t write(int fd, const void *buf, size_t count)
   return writev(fd, &iov, 1);
 }
 
-
 static void copy_stat64_to_stat(struct stat *buf, struct stat64 *sb64)
 {
   memset(buf, 0, sizeof(*buf));
@@ -489,6 +488,8 @@ int select(int nfds, fd_set *readfds, fd_set *writefds,
 L4B_REDIRECT_2(int,       fstat64,     int, struct stat64 *)
 L4B_REDIRECT_3(ssize_t,   readv,       int, const struct iovec *, int)
 L4B_REDIRECT_3(ssize_t,   writev,      int, const struct iovec *, int)
+L4B_REDIRECT_4(ssize_t,   preadv,      int, const struct iovec *, int, off_t)
+L4B_REDIRECT_4(ssize_t,   pwritev,     int, const struct iovec *, int, off_t)
 L4B_REDIRECT_3(__off64_t, lseek64,     int, __off64_t, int)
 L4B_REDIRECT_2(int,       ftruncate64, int, off64_t)
 L4B_REDIRECT_1(int,       fsync,       int)
@@ -550,6 +551,24 @@ extern "C" int fchdir(int fd) L4_NOTHROW
   return -1;
 }
 
+extern "C"
+ssize_t pread64(int fd, void *buf, size_t count, off64_t offset)
+{
+  struct iovec iov;
+  iov.iov_base = buf;
+  iov.iov_len = count;
+  return preadv(fd, &iov, 1, offset);
+}
+
+extern "C"
+ssize_t pwrite64(int fd, const void *buf, size_t count, off64_t offset)
+{
+  struct iovec iov;
+  iov.iov_base = const_cast<void*>(buf);
+  iov.iov_len = count;
+  return pwritev(fd, &iov, 1, offset);
+}
+
 extern "C" char *getcwd(char *buf, size_t size) L4_NOTHROW
 {
   unsigned len_cwd = strlen(_current_working_dir) + 1;