X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/827b5fc241bd5cd1c65354d0566197196179ab84..a4e7a60bca6c13451f237201eb5a7534e5da0838:/src/surf/FileImpl.cpp

diff --git a/src/surf/FileImpl.cpp b/src/surf/FileImpl.cpp
index 59530a92de..d190065cb0 100644
--- a/src/surf/FileImpl.cpp
+++ b/src/surf/FileImpl.cpp
@@ -5,12 +5,59 @@
  * under the terms of the license (GNU LGPL) which comes with this package. */
 
 #include "src/surf/FileImpl.hpp"
-#include "src/surf/HostImpl.hpp"
+#include "src/surf/StorageImpl.hpp"
 
 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_file, surf, "Logging specific to the SURF file module");
 namespace simgrid {
 namespace surf {
 
+FileImpl::FileImpl(sg_storage_t st, std::string path, std::string mount) : path_(path), mount_point_(mount)
+{
+  XBT_DEBUG("\tOpen file '%s'", path.c_str());
+  location_ = st->getImpl();
+  std::map<std::string, sg_size_t>* content = location_->getContent();
+  // if file does not exist create an empty file
+  auto sz = content->find(path);
+  if (sz != content->end()) {
+    size_ = sz->second;
+  } else {
+    size_ = 0;
+    content->insert({path, size_});
+    XBT_DEBUG("File '%s' was not found, file created.", path.c_str());
+  }
+}
+
+Action* FileImpl::read(sg_size_t size)
+{
+  XBT_DEBUG("READ %s on disk '%s'", getCname(), location_->getCname());
+  if (current_position_ + size > size_) {
+    if (current_position_ > size_) {
+      size = 0;
+    } else {
+      size = size_ - current_position_;
+    }
+    current_position_ = size_;
+  } else
+    current_position_ += size;
+
+  return location_->read(size);
+}
+
+Action* FileImpl::write(sg_size_t size)
+{
+  XBT_DEBUG("WRITE %s on disk '%s'. size '%llu/%llu'", getCname(), location_->getCname(), size, size_);
+
+  StorageAction* action = location_->write(size);
+  action->file_         = this;
+  /* Substract the part of the file that might disappear from the used sized on the storage element */
+  location_->usedSize_ -= (size_ - current_position_);
+  // If the storage is full before even starting to write
+  if (location_->usedSize_ >= location_->getSize()) {
+    action->setState(Action::State::failed);
+  }
+  return action;
+}
+
 int FileImpl::seek(sg_offset_t offset, int origin)
 {
   switch (origin) {
@@ -28,40 +75,40 @@ int FileImpl::seek(sg_offset_t offset, int origin)
   }
 }
 
-int FileImpl::unlink(sg_host_t host)
+int FileImpl::unlink()
 {
-  simgrid::surf::StorageImpl* st = host->pimpl_->findStorageOnMountList(mount_point_.c_str());
   /* Check if the file is on this storage */
-  if (st->content_->find(path_) == st->content_->end()) {
-    XBT_WARN("File %s is not on disk %s. Impossible to unlink", cname(), st->cname());
+  if (location_->getContent()->find(path_) == location_->getContent()->end()) {
+    XBT_WARN("File %s is not on disk %s. Impossible to unlink", getCname(), location_->getCname());
     return -1;
   } else {
-    XBT_DEBUG("UNLINK %s on disk '%s'", cname(), st->cname());
-    st->usedSize_ -= size_;
+    XBT_DEBUG("UNLINK %s on disk '%s'", getCname(), location_->getCname());
+    location_->usedSize_ -= size_;
 
     // Remove the file from storage
-    st->content_->erase(path_);
+    location_->getContent()->erase(path_);
 
     return 0;
   }
 }
 
-void FileImpl::move(sg_host_t host, const char* fullpath)
+void FileImpl::move(std::string fullpath)
 {
   /* Check if the new full path is on the same mount point */
-  if (not strncmp(mount_point_.c_str(), fullpath, mount_point_.size())) {
-    std::map<std::string, sg_size_t>* content = host->pimpl_->findStorageOnMountList(mount_point_.c_str())->content_;
-    if (content->find(path_) != content->end()) { // src file exists
-      sg_size_t new_size = content->at(path_);
+  if (not strncmp(mount_point_.c_str(), fullpath.c_str(), mount_point_.size())) {
+    std::map<std::string, sg_size_t>* content = location_->getContent();
+    auto sz = content->find(path_);
+    if (sz != content->end()) { // src file exists
+      sg_size_t new_size = sz->second;
       content->erase(path_);
-      std::string path = std::string(fullpath).substr(mount_point_.size(), strlen(fullpath));
+      std::string path = fullpath.substr(mount_point_.length(), fullpath.length());
       content->insert({path.c_str(), new_size});
-      XBT_DEBUG("Move file from %s to %s, size '%llu'", path_.c_str(), fullpath, new_size);
+      XBT_DEBUG("Move file from %s to %s, size '%llu'", path_.c_str(), fullpath.c_str(), new_size);
     } else {
       XBT_WARN("File %s doesn't exist", path_.c_str());
     }
   } else {
-    XBT_WARN("New full path %s is not on the same mount point: %s.", fullpath, mount_point_.c_str());
+    XBT_WARN("New full path %s is not on the same mount point: %s.", fullpath.c_str(), mount_point_.c_str());
   }
 }
 }