From e896233284f06563830bce0c06efa0219b5cb36a Mon Sep 17 00:00:00 2001
From: baldurk <baldurk@baldurk.org>
Date: Wed, 8 Feb 2017 13:19:21 +0000
Subject: [PATCH] Fetch file size and last modified data when enumerating
 remote files

---
 renderdoc/api/replay/data_types.h     |  2 ++
 renderdoc/core/remote_server.cpp      |  6 ++++++
 renderdoc/os/os_specific.h            |  4 +++-
 renderdoc/os/posix/posix_stringio.cpp |  7 ++++++-
 renderdoc/os/win32/win32_stringio.cpp | 15 ++++++++++++++-
 5 files changed, 31 insertions(+), 3 deletions(-)

diff --git a/renderdoc/api/replay/data_types.h b/renderdoc/api/replay/data_types.h
index 063750c2c..06a8ad57f 100644
--- a/renderdoc/api/replay/data_types.h
+++ b/renderdoc/api/replay/data_types.h
@@ -38,6 +38,8 @@ struct DirectoryFile
 {
   rdctype::str filename;
   uint32_t flags;
+  uint32_t lastmod;
+  uint64_t size;
 };
 
 struct ResourceFormat
diff --git a/renderdoc/core/remote_server.cpp b/renderdoc/core/remote_server.cpp
index e0103fcc2..13aca7ebc 100644
--- a/renderdoc/core/remote_server.cpp
+++ b/renderdoc/core/remote_server.cpp
@@ -49,6 +49,8 @@ void Serialiser::Serialise(const char *name, DirectoryFile &el)
 
   Serialise("filename", el.filename);
   Serialise("flags", el.flags);
+  Serialise("lastmod", el.lastmod);
+  Serialise("size", el.size);
 }
 
 template <>
@@ -290,6 +292,8 @@ static void ActiveRemoteClientThread(void *data)
         {
           DirectoryFile df;
           df.filename = files[i].filename;
+          df.lastmod = files[i].lastmod;
+          df.size = files[i].size;
           df.flags = files[i].flags;
           sendSer.Serialise("", df);
         }
@@ -844,6 +848,8 @@ public:
         {
           DirectoryFile package;
           package.filename = trim(tokens[1]);
+          package.size = 0;
+          package.lastmod = 0;
           package.flags = eFileProp_Executable;
           packages.push_back(package);
         }
diff --git a/renderdoc/os/os_specific.h b/renderdoc/os/os_specific.h
index b4ffdb775..2d5e73ce7 100644
--- a/renderdoc/os/os_specific.h
+++ b/renderdoc/os/os_specific.h
@@ -286,9 +286,11 @@ enum
 struct FoundFile
 {
   FoundFile() : flags(0) {}
-  FoundFile(string fn, uint32_t f) : filename(fn), flags(f) {}
+  FoundFile(string fn, uint32_t f) : filename(fn), flags(f), lastmod(0), size(0) {}
   string filename;
   uint32_t flags;
+  uint32_t lastmod;
+  uint64_t size;
 };
 
 vector<FoundFile> GetFilesInDirectory(const char *path);
diff --git a/renderdoc/os/posix/posix_stringio.cpp b/renderdoc/os/posix/posix_stringio.cpp
index 02d44889f..c5b1916ae 100644
--- a/renderdoc/os/posix/posix_stringio.cpp
+++ b/renderdoc/os/posix/posix_stringio.cpp
@@ -305,7 +305,12 @@ vector<FoundFile> GetFilesInDirectory(const char *path)
     if(ent->d_name[0] == '.')
       flags |= eFileProp_Hidden;
 
-    ret.push_back(FoundFile(ent->d_name, flags));
+    FoundFile f(ent->d_name, flags);
+
+    f.lastmod = (uint32_t)st.st_mtime;
+    f.size = (uint64_t)st.st_size;
+
+    ret.push_back(f);
   }
 
   // don't care if we hit an error or enumerated all files, just finish
diff --git a/renderdoc/os/win32/win32_stringio.cpp b/renderdoc/os/win32/win32_stringio.cpp
index a0e81da23..de0f26bee 100644
--- a/renderdoc/os/win32/win32_stringio.cpp
+++ b/renderdoc/os/win32/win32_stringio.cpp
@@ -432,7 +432,20 @@ vector<FoundFile> GetFilesInDirectory(const char *path)
         flags |= eFileProp_Executable;
       }
 
-      ret.push_back(FoundFile(StringFormat::Wide2UTF8(findData.cFileName), flags));
+      FoundFile f(StringFormat::Wide2UTF8(findData.cFileName), flags);
+
+      uint64_t nanosecondsSinceWindowsEpoch = uint64_t(findData.ftLastWriteTime.dwHighDateTime) << 8 |
+                                              uint64_t(findData.ftLastWriteTime.dwLowDateTime);
+
+      uint64_t secondsSinceWindowsEpoch = nanosecondsSinceWindowsEpoch / 10000000;
+
+      // this constant is the number of seconds between Jan 1 1601 and Jan 1 1970
+      uint64_t secondsSinceUnixEpoch = secondsSinceWindowsEpoch - 11644473600;
+
+      f.lastmod = uint32_t(secondsSinceUnixEpoch);
+      f.size = uint64_t(findData.nFileSizeHigh) << 8 | uint64_t(findData.nFileSizeLow);
+
+      ret.push_back(f);
     }
   } while(FindNextFile(find, &findData) != FALSE);