Added KFile interface emulation in posix systems

git-svn-id: https://src.develer.com/svnoss/bertos/trunk@2705 38d2e660-2303-0410-9eaa-f027e97ec537

diff --git a/bertos/emul/kfile_posix.c b/bertos/emul/kfile_posix.c
new file mode 100644 (file)
index 0000000..3fce00b
--- /dev/null
+++ b/bertos/emul/kfile_posix.c
@@ -0,0 +1,97 @@
+/**
+ * \file
+ * <!--
+ * This file is part of BeRTOS.
+ *
+ * Bertos is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * As a special exception, you may use this file as part of a free software
+ * library without restriction.  Specifically, if other files instantiate
+ * templates or use macros or inline functions from this file, or you compile
+ * this file and link it with other files to produce an executable, this
+ * file does not by itself cause the resulting executable to be covered by
+ * the GNU General Public License.  This exception does not however
+ * invalidate any other reasons why the executable file might be covered by
+ * the GNU General Public License.
+ *
+ * Copyright 2009 Develer S.r.l. (http://www.develer.com/)
+ *
+ * -->
+ *
+ * \brief KFile interface implementation in Posix systems.
+ *
+ * \version $Id$
+ * \author Luca Ottaviano <lottaviano@develer.com>
+ */
+
+#include <emul/kfile_posix.h>
+
+static size_t kfile_posix_read(struct KFile *_fd, void *buf, size_t size)
+{
+       KFilePosix *fd = KFILEPOSIX_CAST(_fd);
+       return fread(buf, sizeof(uint8_t), size, fd->fp);
+}
+
+static size_t kfile_posix_write(struct KFile *_fd, const void *buf, size_t size)
+{
+       KFilePosix *fd = KFILEPOSIX_CAST(_fd);
+       return fwrite(buf, sizeof(uint8_t), size, fd->fp);
+}
+
+static kfile_off_t kfile_posix_seek(struct KFile *_fd, kfile_off_t offset, KSeekMode whence)
+{
+       KFilePosix *fd = KFILEPOSIX_CAST(_fd);
+       int std_whence;
+       switch (whence)
+       {
+               case KSM_SEEK_CUR:
+                       std_whence = SEEK_CUR;
+                       break;
+               case KSM_SEEK_END:
+                       std_whence = SEEK_END;
+                       break;
+               case KSM_SEEK_SET:
+                       /* fall */
+               default:
+                       std_whence = SEEK_SET;
+       }
+
+       return fseek(fd->fp, offset, std_whence);
+}
+
+static int kfile_posix_close(struct KFile *_fd)
+{
+       KFilePosix *fd = KFILEPOSIX_CAST(_fd);
+       return fclose(fd->fp);
+}
+
+static int kfile_posix_flush(struct KFile *_fd)
+{
+       KFilePosix *fd = KFILEPOSIX_CAST(_fd);
+       return fflush(fd->fp);
+}
+
+FILE* kfile_posix_init(KFilePosix *file, const char *filename, const char *mode)
+{
+       file->fd._type = KFT_KFILEPOSIX;
+       file->fd.read = kfile_posix_read;
+       file->fd.write = kfile_posix_write;
+       file->fd.close = kfile_posix_close;
+       file->fd.seek = kfile_posix_seek;
+       file->fd.flush = kfile_posix_flush;
+
+       file->fp = fopen(filename, mode);
+       return file->fp;
+}

diff --git a/bertos/emul/kfile_posix.h b/bertos/emul/kfile_posix.h
new file mode 100644 (file)
index 0000000..b55c048
--- /dev/null
+++ b/bertos/emul/kfile_posix.h
@@ -0,0 +1,56 @@
+/**
+ * \file
+ * <!--
+ * This file is part of BeRTOS.
+ *
+ * Bertos is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * As a special exception, you may use this file as part of a free software
+ * library without restriction.  Specifically, if other files instantiate
+ * templates or use macros or inline functions from this file, or you compile
+ * this file and link it with other files to produce an executable, this
+ * file does not by itself cause the resulting executable to be covered by
+ * the GNU General Public License.  This exception does not however
+ * invalidate any other reasons why the executable file might be covered by
+ * the GNU General Public License.
+ *
+ * Copyright 2009 Develer S.r.l. (http://www.develer.com/)
+ *
+ * -->
+ *
+ * \brief KFile interface implementation in Posix systems.
+ *
+ * \version $Id$
+ * \author Luca Ottaviano <lottaviano@develer.com>
+ */
+
+#include <kern/kfile.h>
+#include <stdio.h>
+
+typedef struct KFilePosix
+{
+  KFile fd;
+  FILE *fp;
+} KFilePosix;
+
+#define KFT_KFILEPOSIX MAKE_ID('K', 'F', 'T', 'P')
+
+INLINE KFilePosix *KFILEPOSIX_CAST(KFile *fd)
+{
+  ASSERT(fd->_type == KFT_KFILEPOSIX);
+  return (KFilePosix *)fd;
+}
+
+FILE *kfile_posix_init(KFilePosix *file, const char *filename, const char *mode);