Socket subsystem implementation

libraries/nacl-mounts/base/KernelProxy.h

Index: libraries/nacl-mounts/base/KernelProxy.h
===================================================================
--- libraries/nacl-mounts/base/KernelProxy.h	(revision 583)
+++ libraries/nacl-mounts/base/KernelProxy.h	(working copy)
@@ -12,12 +12,15 @@
 #endif
 #include <pthread.h>
 #ifdef __GLIBC__
+#include <netdb.h>
 #include <sys/epoll.h>
 #endif
 #include <sys/stat.h>
 #include <string>
+#include "../base/FileHandle.h"
 #include "../base/Mount.h"
 #include "../base/MountManager.h"
+#include "../net/BaseSocketSubSystem.h"
 #include "../util/Path.h"
 #include "../util/SimpleAutoLock.h"
 #include "../util/SlotAllocator.h"
@@ -33,6 +36,7 @@
   // Obtain the singleton instance of the kernel proxy.  If no instance
   // has been instantiated, one will be instantiated and returned.
   static KernelProxy *KPInstance();
+  void SetSS(BaseSocketSubSystem* bss);
 
   // System calls handled by KernelProxy (not mount-specific)
   int chdir(const std::string& path);
@@ -109,6 +113,7 @@
               const struct timeval *timeout, void* sigmask);
   int getpeername(int sockfd, struct sockaddr *addr, socklen_t *addrlen);
   int getsockname(int sockfd, struct sockaddr *addr, socklen_t *addrlen);
+  struct hostent* gethostbyname(const char* name);
   int getsockopt(int sockfd, int level, int optname, void *optval,
                  socklen_t* optlen);
   int setsockopt(int sockfd, int level, int optname, const void *optval,
@@ -128,21 +133,17 @@
 #endif
   MountManager *mm() { return &mm_; }
 
+  ino_t CreateSocket();
+  int AddFileStream(FileStream* stream);
+  FileHandle *GetFileHandle(int fd);
+  void RemoveFileStream(int fd);
  private:
   struct FileDescriptor {
     // An index in open_files_ table
     int handle;
   };
 
-  struct FileHandle {
-    Mount *mount;
-    ino_t node;
-    off_t offset;
-    int flags;
-    int use_count;
-    pthread_mutex_t lock;
-  };
-
+  BaseSocketSubSystem *ss;
   Path cwd_;
   int max_path_len_;
   MountManager mm_;
@@ -152,7 +153,6 @@
   SlotAllocator<FileDescriptor> fds_;
   SlotAllocator<FileHandle> open_files_;
 
-  FileHandle *GetFileHandle(int fd);
   int OpenHandle(Mount *mount, const std::string& path, int oflag, mode_t mode);
 
   KernelProxy();