- Address warnings about 64-bit to 32-bit conversions.

runtime/bin/file_linux.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "platform/globals.h"
 #if defined(TARGET_OS_LINUX)
 
 #include "bin/file.h"
 
 #include <errno.h>  // NOLINT
@@ skipping 59 matching lines @@
 }
 
 
 int64_t File::Write(const void* buffer, int64_t num_bytes) {
   ASSERT(handle_->fd() >= 0);
   return TEMP_FAILURE_RETRY_BLOCK_SIGNALS(write(handle_->fd(), buffer,
                                                 num_bytes));
 }
 
 
-off64_t File::Position() {
+int64_t File::Position() {
   ASSERT(handle_->fd() >= 0);
   return lseek64(handle_->fd(), 0, SEEK_CUR);
 }
 
 
-bool File::SetPosition(off64_t position) {
+bool File::SetPosition(int64_t position) {
   ASSERT(handle_->fd() >= 0);
   return lseek64(handle_->fd(), position, SEEK_SET) >= 0;
 }
 
 
-bool File::Truncate(off64_t length) {
+bool File::Truncate(int64_t length) {
   ASSERT(handle_->fd() >= 0);
   return TEMP_FAILURE_RETRY_BLOCK_SIGNALS(
       ftruncate64(handle_->fd(), length) != -1);
 }
 
 
 bool File::Flush() {
   ASSERT(handle_->fd() >= 0);
   return TEMP_FAILURE_RETRY_BLOCK_SIGNALS(fsync(handle_->fd()) != -1);
 }
 
 
-off64_t File::Length() {
+int64_t File::Length() {
   ASSERT(handle_->fd() >= 0);
   struct stat64 st;
   if (TEMP_FAILURE_RETRY_BLOCK_SIGNALS(fstat64(handle_->fd(), &st)) == 0) {
     return st.st_size;
   }
   return -1;
 }
 
 
 File* File::Open(const char* name, FileOpenMode mode) {
@@ skipping 12 matching lines @@
   }
   if ((mode & kTruncate) != 0) {
     flags = flags | O_TRUNC;
   }
   flags |= O_CLOEXEC;
   int fd = TEMP_FAILURE_RETRY_BLOCK_SIGNALS(open64(name, flags, 0666));
   if (fd < 0) {
     return NULL;
   }
   if (((mode & kWrite) != 0) && ((mode & kTruncate) == 0)) {
-    off64_t position = lseek64(fd, 0, SEEK_END);
+    int64_t position = lseek64(fd, 0, SEEK_END);
     if (position < 0) {
       return NULL;
     }
   }
   return new File(new FileHandle(fd));
 }
 
 
 File* File::OpenStdio(int fd) {
   if (fd < 0 || 2 < fd) return NULL;
@@ skipping 87 matching lines @@
                                                          O_RDONLY | O_CLOEXEC));
     if (old_fd < 0) {
       return false;
     }
     int new_fd = TEMP_FAILURE_RETRY_BLOCK_SIGNALS(
         open64(new_path, O_WRONLY | O_TRUNC | O_CREAT | O_CLOEXEC, st.st_mode));
     if (new_fd < 0) {
       VOID_TEMP_FAILURE_RETRY_BLOCK_SIGNALS(close(old_fd));
       return false;
     }
-    off64_t offset = 0;
-    int result = 1;
+    int64_t offset = 0;
+    intptr_t result = 1;
     while (result > 0) {
       // Loop to ensure we copy everything, and not only up to 2GB.
       result = TEMP_FAILURE_RETRY_BLOCK_SIGNALS(
           sendfile64(new_fd, old_fd, &offset, kMaxUint32));
     }
     // From sendfile man pages:
     //   Applications may wish to fall back to read(2)/write(2) in the case
     //   where sendfile() fails with EINVAL or ENOSYS.
     if (result < 0 && (errno == EINVAL || errno == ENOSYS)) {
       const intptr_t kBufferSize = 8 * KB;
@@ skipping 19 matching lines @@
     return true;
   } else if (type == kIsDirectory) {
     errno = EISDIR;
   } else {
     errno = ENOENT;
   }
   return false;
 }
 
 
-off64_t File::LengthFromPath(const char* name) {
+int64_t File::LengthFromPath(const char* name) {
   struct stat64 st;
   if (TEMP_FAILURE_RETRY_BLOCK_SIGNALS(stat64(name, &st)) == 0) {
     return st.st_size;
   }
   return -1;
 }
 
 
 void File::Stat(const char* name, int64_t* data) {
   struct stat64 st;
@@ skipping 119 matching lines @@
   return (file_1_info.st_ino == file_2_info.st_ino &&
           file_1_info.st_dev == file_2_info.st_dev) ?
       File::kIdentical :
       File::kDifferent;
 }
 
 }  // namespace bin
 }  // namespace dart
 
 #endif  // defined(TARGET_OS_LINUX)