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authorNicolas Schodet2015-10-09 11:39:53 +0200
committerNicolas Schodet2019-10-07 00:44:50 +0200
commit381c4d1886ec72364e0e62ad0f08a2511a0c8304 (patch)
treee5fd1155c800d92477f090ce7dabf175ebe4bfbf /ucoo/intf/file_system.cc
parent0f38f554b462a516d66649f919faa7336a9601d2 (diff)
ucoo/{intf,arch}: add file system interface
Diffstat (limited to 'ucoo/intf/file_system.cc')
-rw-r--r--ucoo/intf/file_system.cc58
1 files changed, 58 insertions, 0 deletions
diff --git a/ucoo/intf/file_system.cc b/ucoo/intf/file_system.cc
new file mode 100644
index 0000000..b171861
--- /dev/null
+++ b/ucoo/intf/file_system.cc
@@ -0,0 +1,58 @@
+// ucoolib - Microcontroller object oriented library. {{{
+//
+// Copyright (C) 2015 Nicolas Schodet
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the "Software"),
+// to deal in the Software without restriction, including without limitation
+// the rights to use, copy, modify, merge, publish, distribute, sublicense,
+// and/or sell copies of the Software, and to permit persons to whom the
+// Software is furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+// DEALINGS IN THE SOFTWARE.
+//
+// }}}
+#include "ucoo/intf/file_system.hh"
+#ifdef TARGET_newlib
+# include "ucoo/arch/syscalls.newlib.hh"
+# include "ucoo/common.hh"
+#endif
+
+namespace ucoo {
+
+void
+FileSystem::enable (bool root)
+{
+ disable ();
+ enabled_ = true;
+ root_ = root;
+#ifdef TARGET_newlib
+ if (root_)
+ {
+ assert (!syscalls_file_system);
+ syscalls_file_system = this;
+ }
+#endif
+}
+
+void
+FileSystem::disable ()
+{
+#ifdef TARGET_newlib
+ if (enabled_ && root_)
+ syscalls_file_system = nullptr;
+#endif
+ enabled_ = false;
+ root_ = false;
+}
+
+} // namespace ucoo