Modules: Move first five of many C files from sched/module to libc/modlib

2026-06-06 16:50:55 +08:00 · 2017-01-29 10:05:15 -06:00
parent 00e46b5966
commit 5e94dd22bb
22 changed files with 241 additions and 250 deletions
@@ -0,0 +1,115 @@
+/****************************************************************************
+ * libc/modlib/modlib_uninit.c
+ *
+ *   Copyright (C) 2015. 2017 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <unistd.h>
+#include <debug.h>
+#include <errno.h>
+
+#include <nuttx/kmalloc.h>
+#include <nuttx/module.h>
+#include <nuttx/lib/modlib.h>
+
+#include "libc.h"
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: modlib_uninitialize
+ *
+ * Description:
+ *   Releases any resources committed by modlib_initialize().  This
+ *   essentially undoes the actions of modlib_initialize.
+ *
+ * Returned Value:
+ *   0 (OK) is returned on success and a negated errno is returned on
+ *   failure.
+ *
+ ****************************************************************************/
+
+int modlib_uninitialize(struct mod_loadinfo_s *loadinfo)
+{
+  /* Free all working buffers */
+
+  mod_freebuffers(loadinfo);
+
+  /* Close the ELF file */
+
+  if (loadinfo->filfd >= 0)
+    {
+      close(loadinfo->filfd);
+    }
+
+  return OK;
+}
+
+/****************************************************************************
+ * Name: mod_freebuffers
+ *
+ * Description:
+ *  Release all working buffers.
+ *
+ * Returned Value:
+ *   0 (OK) is returned on success and a negated errno is returned on
+ *   failure.
+ *
+ ****************************************************************************/
+
+int mod_freebuffers(struct mod_loadinfo_s *loadinfo)
+{
+  /* Release all working allocations  */
+
+  if (loadinfo->shdr != NULL)
+    {
+      lib_free((FAR void *)loadinfo->shdr);
+      loadinfo->shdr      = NULL;
+    }
+
+  if (loadinfo->iobuffer != NULL)
+    {
+      lib_free((FAR void *)loadinfo->iobuffer);
+      loadinfo->iobuffer  = NULL;
+      loadinfo->buflen    = 0;
+    }
+
+  return OK;
+}