From 7a6db4024aa668fd49741c4c34965ab674efaac6 Mon Sep 17 00:00:00 2001
From: "jianli@chromium.org"
 <jianli@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>
Date: Wed, 24 Mar 2010 23:37:50 +0000
Subject: Support sending a sliced file in chromium.

BUG=none
TEST=The WebKit Layout test.

Review URL: http://codereview.chromium.org/594036

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@42559 0039d316-1c4b-4281-b951-d872f2087c98
---
 net/base/upload_data.h | 21 +++++++++++++++++----
 1 file changed, 17 insertions(+), 4 deletions(-)

(limited to 'net/base/upload_data.h')

diff --git a/net/base/upload_data.h b/net/base/upload_data.h
index 3aab835..869ab68 100644
--- a/net/base/upload_data.h
+++ b/net/base/upload_data.h
@@ -10,6 +10,7 @@
 #include "base/basictypes.h"
 #include "base/file_path.h"
 #include "base/ref_counted.h"
+#include "base/time.h"
 #include "testing/gtest/include/gtest/gtest_prod.h"
 
 namespace net {
@@ -35,6 +36,10 @@ class UploadData : public base::RefCounted<UploadData> {
     const FilePath& file_path() const { return file_path_; }
     uint64 file_range_offset() const { return file_range_offset_; }
     uint64 file_range_length() const { return file_range_length_; }
+    // If NULL time is returned, we do not do the check.
+    const base::Time& expected_file_modification_time() const {
+      return expected_file_modification_time_;
+    }
 
     void SetToBytes(const char* bytes, int bytes_len) {
       type_ = TYPE_BYTES;
@@ -42,15 +47,20 @@ class UploadData : public base::RefCounted<UploadData> {
     }
 
     void SetToFilePath(const FilePath& path) {
-      SetToFilePathRange(path, 0, kuint64max);
+      SetToFilePathRange(path, 0, kuint64max, base::Time());
     }
 
+    // If expected_modification_time is NULL, we do not check for the file
+    // change. Also note that the granularity for comparison is time_t, not
+    // the full precision.
     void SetToFilePathRange(const FilePath& path,
-                            uint64 offset, uint64 length) {
+                            uint64 offset, uint64 length,
+                            const base::Time& expected_modification_time) {
       type_ = TYPE_FILE;
       file_path_ = path;
       file_range_offset_ = offset;
       file_range_length_ = length;
+      expected_file_modification_time_ = expected_modification_time;
     }
 
     // Returns the byte-length of the element.  For files that do not exist, 0
@@ -69,6 +79,7 @@ class UploadData : public base::RefCounted<UploadData> {
     FilePath file_path_;
     uint64 file_range_offset_;
     uint64 file_range_length_;
+    base::Time expected_file_modification_time_;
     bool override_content_length_;
     uint64 content_length_;
 
@@ -89,9 +100,11 @@ class UploadData : public base::RefCounted<UploadData> {
   }
 
   void AppendFileRange(const FilePath& file_path,
-                       uint64 offset, uint64 length) {
+                       uint64 offset, uint64 length,
+                       const base::Time& expected_modification_time) {
     elements_.push_back(Element());
-    elements_.back().SetToFilePathRange(file_path, offset, length);
+    elements_.back().SetToFilePathRange(file_path, offset, length,
+                                        expected_modification_time);
   }
 
   // Returns the total size in bytes of the data to upload.
-- 
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