Add framework for thttpd

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1975 42af7a65-404d-4744-a932-0658087f49c3

1 files changed, 86 insertions, 0 deletions

diff --git a/nuttx/netutils/thttpd/fdwatch.h b/nuttx/netutils/thttpd/fdwatch.h
new file mode 100644
index 000000000..76c8c02ae
--- /dev/null
+++ b/nuttx/netutils/thttpd/fdwatch.h
@@ -0,0 +1,86 @@
+/****************************************************************************
+ * netutils/thttpd/fdwatch.h
+ *
+ *   Copyright (C) 2009 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Derived from the file of the same name in THTTPD:
+ *
+ *   Copyright © 1999 by Jef Poskanzer <jef@mail.acme.com>.
+ *   All rights reserved.
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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
+ ****************************************************************************/
+
+#ifndef __NETUTILS_THTTPD_FDWATCH_H
+#define __NETUTILS_THTTPD_FDWATCH_H
+
+#define FDW_READ 0
+#define FDW_WRITE 1
+
+#ifndef INFTIM
+#  define INFTIM -1
+#endif
+
+/* Figure out how many file descriptors the system allows, and
+ * initialize the fdwatch data structures.  Returns -1 on failure.
+ */
+
+extern int fdwatch_get_nfiles(void);
+
+/* Add a descriptor to the watch list. rw is either FDW_READ or FDW_WRITE.  */
+
+extern void fdwatch_add_fd(int fd, void *client_data, int rw);
+
+/* Delete a descriptor from the watch list. */
+
+extern void fdwatch_del_fd(int fd);
+
+/* Do the watch.  Return value is the number of descriptors that are ready,
+ * or 0 if the timeout expired, or -1 on errors.  A timeout of INFTIM means
+ * wait indefinitely.
+ */
+
+extern int fdwatch(long timeout_msecs);
+
+/* Check if a descriptor was ready. */
+
+extern int fdwatch_check_fd(int fd);
+
+/* Get the client data for the next returned event.  Returns -1 when there
+ * are no more events.
+ */
+
+extern void *fdwatch_get_next_client_data(void);
+
+/* Generate debugging statistics syslog message. */
+
+extern void fdwatch_logstats(long secs);
+
+#endif /* __NETUTILS_THTTPD_FDWATCH_H */
+