* io.h (CLOSE_EOF): Changed the meaning of this constant. Now used

also for EOF on writing.
* io.c (prepare_write): Use the close_reason CLOSE_EOF when a
closed write_buffer has been flushed successfully.

* io.c (write_callback): Report EPIPE and other write failures
differently.

Rev: src/io.c:1.36
Rev: src/io.h:1.24

src/io.c

@@ -324,8 +324,8 @@ static void write_callback(struct lsh_fd *fd)
       case EAGAIN:
 	break;
       case EPIPE:
-	werror("Broken pipe\n");
-	close_fd(fd, CLOSE_WRITE_FAILED);
+	debug("io.c: Broken pipe.\n");
+	close_fd(fd, CLOSE_BROKEN_PIPE);
 	break;
       default:
 	werror("io.c: write failed, %s\n", strerror(errno));
@@ -649,7 +649,7 @@ static void prepare_write(struct lsh_fd *fd)
 
   if (! (fd->want_write = write_buffer_pre_write(self->buffer))
       && self->buffer->closed)
-    kill_fd(fd);
+    close_fd(fd, CLOSE_EOF);
 }
   
 struct abstract_write *io_read_write(struct io_backend *b,

src/io.h

@@ -50,7 +50,9 @@
 
 /* Close callbacks are called with a reason as argument. */
 
-/* End of file while reading */
+/* End of file while reading.
+ * Or when a closed write_buffer has been flushed successfully. */
+/* FIXME: Should we use separate codes for these two events? */
 #define CLOSE_EOF 1
 
 /* EPIPE when writing */