modify nuttx bug of lack of files

2021-06-11 11:25:07 +08:00
parent 4a7f51a5e9
commit 6d0f2ca39a
6752 changed files with 1528133 additions and 0 deletions
@@ -0,0 +1,181 @@
+/****************************************************************************
+ * drivers/syslog/syslog_devchannel.c
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+
+#include <nuttx/syslog/syslog.h>
+#include <nuttx/compiler.h>
+
+#include "syslog.h"
+
+#ifdef CONFIG_SYSLOG_CHAR
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+#define OPEN_FLAGS (O_WRONLY)
+#define OPEN_MODE  (S_IROTH | S_IRGRP | S_IRUSR | S_IWUSR)
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+/* SYSLOG channel methods */
+
+#ifdef CONFIG_SYSLOG_CHAR_CRLF
+static int syslog_devchan_putc(FAR struct syslog_channel_s *channel,
+                               int ch);
+#endif
+static int syslog_devchan_force(FAR struct syslog_channel_s *channel,
+                                int ch);
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/* This structure describes the channel's operations. */
+
+static const struct syslog_channel_ops_s g_syslog_ops =
+{
+#ifdef CONFIG_SYSLOG_CHAR_CRLF
+  syslog_devchan_putc,
+#else
+  syslog_dev_putc,
+#endif
+  syslog_devchan_force,
+  syslog_dev_flush,
+#ifdef CONFIG_SYSLOG_WRITE
+  syslog_dev_write,
+#endif
+};
+
+/* Handle to the SYSLOG channel */
+
+FAR static struct syslog_channel_s *g_syslog_dev_channel;
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: syslog_devchan_putc
+ *
+ * Description:
+ *   A front-end to syslog_dev_putc that does LF -> CR-LF expansion
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_SYSLOG_CHAR_CRLF
+static int syslog_devchan_putc(FAR struct syslog_channel_s *channel, int ch)
+{
+  int ret;
+
+  /* Check for a linefeed */
+
+  if (ch == '\n')
+    {
+      /* Pre-pend a carriage return */
+
+      ret = syslog_dev_putc(channel, '\r');
+      if (ret < 0)
+        {
+          return ret;
+        }
+    }
+
+  /* Output the provided character */
+
+  return syslog_dev_putc(channel, ch);
+}
+#endif
+
+/****************************************************************************
+ * Name: syslog_devchan_force
+ *
+ * Description:
+ *   A dummy FORCE method
+ *
+ ****************************************************************************/
+
+static int syslog_devchan_force(FAR struct syslog_channel_s *channel,
+                                int ch)
+{
+  UNUSED(channel);
+  return ch;
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: syslog_dev_channel
+ *
+ * Description:
+ *   Configure to use the character device at CONFIG_SYSLOG_DEVPATH as the
+ *   SYSLOG channel.
+ *
+ *   This tiny function is simply a wrapper around syslog_dev_initialize()
+ *   and syslog_channel().  It calls syslog_dev_initialize() to configure
+ *   the character device at CONFIG_SYSLOG_DEVPATH then calls
+ *   syslog_channel() to use that device as the SYSLOG output channel.
+ *
+ *   NOTE interrupt level SYSLOG output will be lost in this case unless
+ *   the interrupt buffer is used.
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   Zero (OK) is returned on success; a negated errno value is returned on
+ *   any failure.
+ *
+ ****************************************************************************/
+
+int syslog_dev_channel(void)
+{
+  /* Initialize the character driver interface */
+
+  g_syslog_dev_channel = syslog_dev_initialize(CONFIG_SYSLOG_DEVPATH,
+                                               OPEN_FLAGS, OPEN_MODE);
+  if (g_syslog_dev_channel == NULL)
+    {
+      return -ENOMEM;
+    }
+
+  /* Register the channel operations */
+
+  g_syslog_dev_channel->sc_ops = &g_syslog_ops;
+
+  /* Use the character driver as the SYSLOG channel */
+
+  return syslog_channel(g_syslog_dev_channel);
+}
+
+#endif /* CONFIG_SYSLOG_CHAR */