mesh: add source for ell shared library

Change-Id: I5951addf984e0e67bf8d3dcf89b89ba648c14064
Signed-off-by: Anupam Roy <anupam.r@samsung.com>

diff --git a/src/shared/io-ell.c b/src/shared/io-ell.c
new file mode 100644 (file)
index 0000000..6748982
--- /dev/null
+++ b/src/shared/io-ell.c
@@ -0,0 +1,154 @@
+/*
+ *
+ *  BlueZ - Bluetooth protocol stack for Linux
+ *
+ *  Copyright (C) 2018  Intel Corporation. All rights reserved.
+ *
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License as published by the Free Software Foundation; either
+ *  version 2.1 of the License, or (at your option) any later version.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <unistd.h>
+#include <errno.h>
+#include <sys/socket.h>
+
+#include <ell/ell.h>
+
+#include "src/shared/io.h"
+
+struct io {
+       struct l_io *l_io;
+};
+
+struct io *io_new(int fd)
+{
+       struct io *io;
+       struct l_io *l_io;
+
+       if (fd < 0)
+               return NULL;
+
+       io = l_new(struct io, 1);
+       if (!io)
+               return NULL;
+
+       l_io = l_io_new(fd);
+       if (!l_io) {
+               l_free(io);
+               return NULL;
+       }
+
+       io->l_io = l_io;
+
+       return io;
+}
+
+void io_destroy(struct io *io)
+{
+       if (!io)
+               return;
+
+       if (io->l_io)
+               l_io_destroy(io->l_io);
+
+       l_free(io);
+}
+
+int io_get_fd(struct io *io)
+{
+       if (!io || !io->l_io)
+               return -ENOTCONN;
+
+       return l_io_get_fd(io->l_io);
+}
+
+bool io_set_close_on_destroy(struct io *io, bool do_close)
+{
+       if (!io || !io->l_io)
+               return false;
+
+       return l_io_set_close_on_destroy(io->l_io, do_close);
+}
+
+bool io_set_read_handler(struct io *io, io_callback_func_t callback,
+                               void *user_data, io_destroy_func_t destroy)
+{
+       if (!io || !io->l_io)
+               return false;
+
+       return l_io_set_read_handler(io->l_io, (l_io_read_cb_t) callback,
+                                                       user_data, destroy);
+}
+
+bool io_set_write_handler(struct io *io, io_callback_func_t callback,
+                               void *user_data, io_destroy_func_t destroy)
+{
+       if (!io || !io->l_io)
+               return false;
+
+       return l_io_set_write_handler(io->l_io, (l_io_write_cb_t) callback,
+                                                       user_data, destroy);
+}
+
+bool io_set_disconnect_handler(struct io *io, io_callback_func_t callback,
+                               void *user_data, io_destroy_func_t destroy)
+{
+       if (!io || !io->l_io)
+               return false;
+
+       return l_io_set_disconnect_handler(io->l_io, (void *) callback,
+                                                       user_data, destroy);
+}
+
+ssize_t io_send(struct io *io, const struct iovec *iov, int iovcnt)
+{
+       ssize_t ret;
+       int fd;
+
+       if (!io || !io->l_io)
+               return -ENOTCONN;
+
+       fd = l_io_get_fd(io->l_io);
+       if (fd < 0)
+               return -ENOTCONN;
+
+       do {
+               ret = writev(fd, iov, iovcnt);
+       } while (ret < 0 && errno == EINTR);
+
+       if (ret < 0)
+               return -errno;
+
+       return ret;
+}
+
+bool io_shutdown(struct io *io)
+{
+       int fd;
+
+       if (!io || !io->l_io)
+               return false;
+
+       fd = l_io_get_fd(io->l_io);
+       if (fd < 0)
+               return false;
+
+       return shutdown(fd, SHUT_RDWR) == 0;
+}