SWC-DB  v0.5.12 C++ documentations
SWC-DB© (Super Wide Column Database) - High Performance Scalable Database (https://github.com/kashirin-alex/swc-db)
Write.h
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1 /*
2  * SWC-DB© Copyright since 2019 Alex Kashirin <kashirin.alex@gmail.com>
3  * License details at <https://github.com/kashirin-alex/swc-db/#license>
4  */
5 
6 
7 #ifndef swcdb_fsbroker_handlers_Write_h
8 #define swcdb_fsbroker_handlers_Write_h
9 
11 
12 namespace SWC { namespace Comm { namespace Protocol {
13 namespace FsBroker { namespace Handler {
14 
15 
16 
17 void write(const ConnHandlerPtr& conn, const Event::Ptr& ev) {
18 
19  int err = Error::OK;
20  try {
21 
22  const uint8_t *ptr = ev->data.base;
23  size_t remain = ev->data.size;
24 
25  Params::WriteReq params;
26  params.decode(&ptr, &remain);
27 
28  auto smartfd = FS::SmartFd::make_ptr(
29  std::move(params.fname), params.flags);
30 
31  Env::FsInterface::fs()->write(
32  err, smartfd, params.replication, ev->data_ext
33  );
34 
35  } catch(...) {
38  err = e.code();
39  }
40 
41  auto cbp = Buffers::make(ev, 4);
42  cbp->append_i32(err);
43  conn->send_response(cbp);
44 
45 }
46 
47 
48 }}}}}
49 
50 #endif // swcdb_fsbroker_handlers_Write_h
SWC::Error::Exception::code
constexpr SWC_CAN_INLINE int code() const noexcept
Definition: Exception.h:51
SWC_LOG_OSTREAM
#define SWC_LOG_OSTREAM
Definition: Logger.h:44
SWC_LOG_OUT
#define SWC_LOG_OUT(pr, _code_)
Definition: Logger.h:178
SWC::FS::SmartFd::make_ptr
static SWC_CAN_INLINE Ptr make_ptr(const std::string &filepath, uint32_t flags, int32_t fd=-1, uint64_t pos=0)
Definition: SmartFd.h:40
SWC::Error::OK
@ OK
Definition: Error.h:45
Write.h
SWC_CURRENT_EXCEPTION
#define SWC_CURRENT_EXCEPTION(_msg_)
Definition: Exception.h:119
SWC
The SWC-DB C++ namespace 'SWC'.
Definition: main.cc:12
SWC::Env::FsInterface::fs
static SWC_CAN_INLINE FS::FileSystem::Ptr & fs() noexcept
Definition: Interface.h:155
SWC::Comm::Protocol::FsBroker::Handler::write
void write(const ConnHandlerPtr &conn, const Event::Ptr &ev)
Definition: Write.h:17
SWC::LOG_ERROR
@ LOG_ERROR
Definition: Logger.h:32
SWC::Comm::Protocol::FsBroker::Params::WriteReq
Definition: Write.h:17
SWC::Comm::ConnHandlerPtr
std::shared_ptr< ConnHandler > ConnHandlerPtr
Definition: AppContext.h:17
SWC::Comm::Buffers::make
static SWC_CAN_INLINE Ptr make(uint32_t reserve=0)
Definition: Buffers.h:27
SWC::Comm::Protocol::FsBroker::Params::WriteReq::flags
uint32_t flags
Definition: Write.h:33
SWC::Comm::Protocol::FsBroker::Params::WriteReq::replication
uint8_t replication
Definition: Write.h:34
SWC::Comm::Protocol::FsBroker::Params::WriteReq::fname
std::string fname
Definition: Write.h:32
SWC::Comm::Serializable::decode
void decode(const uint8_t **bufp, size_t *remainp)
Definition: Serializable.h:59
SWC::Comm::Event::Ptr
std::shared_ptr< Event > Ptr
Definition: Event.h:33
SWC::Error::Exception
Definition: Exception.h:21