From bdab511d954a849d06e34f6d801cc374f867213b Mon Sep 17 00:00:00 2001
From: Benjamin Barenblat <bbaren@mit.edu>
Date: Sun, 21 Feb 2016 23:05:22 -0500
Subject: Implement statfs

---
 src/operations.cc | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'src/operations.cc')

diff --git a/src/operations.cc b/src/operations.cc
index 79d2d07..cf53b05 100644
--- a/src/operations.cc
+++ b/src/operations.cc
@@ -33,6 +33,7 @@
 #include <fcntl.h>
 #include <glog/logging.h>
 #include <sys/stat.h>
+#include <sys/statvfs.h>
 #include <sys/types.h>
 #include <time.h>
 
@@ -61,6 +62,17 @@ void* Initialize(fuse_conn_info*) noexcept { return nullptr; }
 
 void Destroy(void*) noexcept {}
 
+int Statfs(const char* const c_path, struct statvfs* const output) {
+  const std::string path(c_path);
+  if (path == "/") {
+    *output = root_->StatVFs();
+  } else {
+    *output =
+        root_->OpenAt(EncodePath(path).c_str(), O_RDONLY | O_PATH).StatVFs();
+  }
+  return 0;
+}
+
 int Getattr(const char* const c_path, struct stat* output) {
   const std::string path(c_path);
   if (path == "/") {
@@ -276,6 +288,8 @@ fuse_operations FuseOperations(File* const root) {
   result.init = Initialize;
   result.destroy = Destroy;
 
+  result.statfs = CATCH_AND_RETURN_EXCEPTIONS(Statfs);
+
   result.getattr = CATCH_AND_RETURN_EXCEPTIONS(Getattr);
   result.fgetattr = CATCH_AND_RETURN_EXCEPTIONS(Fgetattr);
 
-- 
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