lib/smbclient/Context: new wrapper for SMBCCTX

src/lib/smbclient/Context.cxx

@@ -0,0 +1,40 @@
+/*
+ * Copyright 2003-2020 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program 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 Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "Context.hxx"
+#include "system/Error.hxx"
+
+#include <cerrno>
+
+SmbclientContext
+SmbclientContext::New()
+{
+	SMBCCTX *ctx = smbc_new_context();
+	if (ctx == nullptr)
+		throw MakeErrno("smbc_new_context() failed");
+
+	SMBCCTX *ctx2 = smbc_init_context(ctx);
+	if (ctx2 == nullptr) {
+		int e = errno;
+		smbc_free_context(ctx, 1);
+		throw MakeErrno(e, "smbc_init_context() failed");
+	}
+
+	return SmbclientContext(ctx2);
+}

src/lib/smbclient/Context.hxx

@@ -0,0 +1,59 @@
+/*
+ * Copyright 2003-2020 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program 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 Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef MPD_SMBCLIENT_CONTEXT_HXX
+#define MPD_SMBCLIENT_CONTEXT_HXX
+
+#include <libsmbclient.h>
+
+#include <utility>
+
+/**
+ * Wrapper for `SMBCCTX*`.
+ */
+class SmbclientContext {
+	SMBCCTX *ctx = nullptr;
+
+	explicit SmbclientContext(SMBCCTX *_ctx) noexcept
+		:ctx(_ctx) {}
+
+public:
+	SmbclientContext() = default;
+
+	~SmbclientContext() noexcept {
+		if (ctx != nullptr)
+			smbc_free_context(ctx, 1);
+	}
+
+	SmbclientContext(SmbclientContext &&src) noexcept
+		:ctx(std::exchange(src.ctx, nullptr)) {}
+
+	SmbclientContext &operator=(SmbclientContext &&src) noexcept {
+		using std::swap;
+		swap(ctx, src.ctx);
+		return *this;
+	}
+
+	/**
+	 * Throws on error.
+	 */
+	static SmbclientContext New();
+};
+
+#endif

src/lib/smbclient/meson.build

@@ -9,6 +9,7 @@ smbclient = static_library(
   'Domain.cxx',
   'Mutex.cxx',
   'Init.cxx',
+  'Context.cxx',
   include_directories: inc,
   dependencies: [
     smbclient_dep,