summaryrefslogtreecommitdiff
path: root/cpp/msgpack/vrefbuffer.h
diff options
context:
space:
mode:
authorfrsyuki <frsyuki@users.sourceforge.jp>2010-04-18 00:08:03 +0900
committerfrsyuki <frsyuki@users.sourceforge.jp>2010-04-18 00:08:03 +0900
commitab8e0c9e31585b24f1d4cbfb1e73b0ce249e408a (patch)
tree042100bffb170e6bec88cc497345bd4074e2f067 /cpp/msgpack/vrefbuffer.h
parentc3f43fb0cf14f596a9ebb1c30b0417b3a8ba9958 (diff)
downloadmsgpack-python-ab8e0c9e31585b24f1d4cbfb1e73b0ce249e408a.tar.gz
c,cpp: reforms source tree
Diffstat (limited to 'cpp/msgpack/vrefbuffer.h')
-rw-r--r--cpp/msgpack/vrefbuffer.h110
1 files changed, 110 insertions, 0 deletions
diff --git a/cpp/msgpack/vrefbuffer.h b/cpp/msgpack/vrefbuffer.h
new file mode 100644
index 0000000..38ead67
--- /dev/null
+++ b/cpp/msgpack/vrefbuffer.h
@@ -0,0 +1,110 @@
+/*
+ * MessagePack for C zero-copy buffer implementation
+ *
+ * Copyright (C) 2008-2009 FURUHASHI Sadayuki
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#ifndef MSGPACK_VREFBUFFER_H__
+#define MSGPACK_VREFBUFFER_H__
+
+#include "msgpack/zone.h"
+
+#ifndef _WIN32
+#include <sys/uio.h>
+#else
+struct iovec {
+ void *iov_base;
+ size_t iov_len;
+};
+#endif
+
+#ifndef MSGPACK_VREFBUFFER_REF_SIZE
+#define MSGPACK_VREFBUFFER_REF_SIZE 32
+#endif
+
+#ifndef MSGPACK_VREFBUFFER_CHUNK_SIZE
+#define MSGPACK_VREFBUFFER_CHUNK_SIZE 8192
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+struct msgpack_vrefbuffer_chunk;
+typedef struct msgpack_vrefbuffer_chunk msgpack_vrefbuffer_chunk;
+
+typedef struct msgpack_vrefbuffer_inner_buffer {
+ size_t free;
+ char* ptr;
+ msgpack_vrefbuffer_chunk* head;
+} msgpack_vrefbuffer_inner_buffer;
+
+typedef struct msgpack_vrefbuffer {
+ struct iovec* tail;
+ struct iovec* end;
+ struct iovec* array;
+
+ size_t chunk_size;
+ size_t ref_size;
+
+ msgpack_vrefbuffer_inner_buffer inner_buffer;
+} msgpack_vrefbuffer;
+
+
+bool msgpack_vrefbuffer_init(msgpack_vrefbuffer* vbuf,
+ size_t ref_size, size_t chunk_size);
+void msgpack_vrefbuffer_destroy(msgpack_vrefbuffer* vbuf);
+
+static inline int msgpack_vrefbuffer_write(void* data, const char* buf, unsigned int len);
+
+static inline const struct iovec* msgpack_vrefbuffer_vec(const msgpack_vrefbuffer* vref);
+static inline size_t msgpack_vrefbuffer_veclen(const msgpack_vrefbuffer* vref);
+
+int msgpack_vrefbuffer_append_copy(msgpack_vrefbuffer* vbuf,
+ const char* buf, unsigned int len);
+
+int msgpack_vrefbuffer_append_ref(msgpack_vrefbuffer* vbuf,
+ const char* buf, unsigned int len);
+
+int msgpack_vrefbuffer_migrate(msgpack_vrefbuffer* vbuf, msgpack_vrefbuffer* to);
+
+int msgpack_vrefbuffer_write(void* data, const char* buf, unsigned int len)
+{
+ msgpack_vrefbuffer* vbuf = (msgpack_vrefbuffer*)data;
+
+ if(len < vbuf->ref_size) {
+ return msgpack_vrefbuffer_append_copy(vbuf, buf, len);
+ } else {
+ return msgpack_vrefbuffer_append_ref(vbuf, buf, len);
+ }
+}
+
+const struct iovec* msgpack_vrefbuffer_vec(const msgpack_vrefbuffer* vref)
+{
+ return vref->array;
+}
+
+size_t msgpack_vrefbuffer_veclen(const msgpack_vrefbuffer* vref)
+{
+ return vref->tail - vref->array;
+}
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* msgpack/vrefbuffer.h */
+