VFS: Fix reference count of file descriptors.

It appears that there was a race condition where the process got closed
before the server accepted the incoming request. Causing the file
descriptor to have "0" in the reference count but it would still be
given when calling accept.

1 files changed, 3 insertions, 2 deletions

diff --git a/kernel/socket.c b/kernel/socket.c
index 589d99a..d24e39c 100644
--- a/kernel/socket.c
+++ b/kernel/socket.c
@@ -240,7 +240,8 @@ int uds_open(const char *path) {
   s->ptr_socket_fd->inode->has_data = 1;
 
   s->incoming_fd = get_vfs_fd(fd[1], NULL);
-  // vfs_close(fd[1]);
+  s->incoming_fd->reference_count++;
+  vfs_close(fd[1]);
   return fd[0];
 }
 
@@ -263,7 +264,7 @@ int accept(int socket, struct sockaddr *address, socklen_t *address_len) {
 
   int index;
   assert(list_add(&current_task->file_descriptors, s->incoming_fd, &index));
-  s->incoming_fd->reference_count++;
+  assert(1 <= s->incoming_fd->reference_count);
   s->incoming_fd = NULL;
   //  for (char c; 0 < vfs_pread(s->fifo_fd, &c, 1, 0);)
   //    ;