SWC-DB  v0.5.12 C++ documentations
SWC-DB© (Super Wide Column Database) - High Performance Scalable Database (https://github.com/kashirin-alex/swc-db)
Close.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_Close_h
8 #define swcdb_fsbroker_handlers_Close_h
9 
11 
12 
13 namespace SWC { namespace Comm { namespace Protocol {
14 namespace FsBroker { namespace Handler {
15 
16 
17 void close(const ConnHandlerPtr& conn, const Event::Ptr& ev) {
18 
19  int err = Error::OK;
20  try {
21  const uint8_t *ptr = ev->data.base;
22  size_t remain = ev->data.size;
23 
24  Params::CloseReq params;
25  params.decode(&ptr, &remain);
26 
27  auto smartfd = Env::FsBroker::fds().select(params.fd);
28  if(!smartfd) {
29  err = EBADR;
30  } else {
31  Env::FsInterface::fs()->close(err, smartfd);
32  if(err != Error::SERVER_NOT_READY)
33  Env::FsBroker::fds().remove(params.fd);
34  }
35 
36  } catch(...) {
39  err = e.code();
40  }
41 
42  auto cbp = Buffers::make(ev, 4);
43  cbp->append_i32(err);
44  conn->send_response(cbp);
45 
46 }
47 
48 
49 }}}}}
50 
51 #endif // swcdb_fsbroker_handlers_Close_h
SWC::Comm::Protocol::FsBroker::Handler::close
void close(const ConnHandlerPtr &conn, const Event::Ptr &ev)
Definition: Close.h:17
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::FsBroker::Fds::select
SWC_CAN_INLINE FS::SmartFd::Ptr select(int32_t fd) noexcept
Definition: FsBrokerEnv.h:33
SWC::FsBroker::Fds::remove
FS::SmartFd::Ptr remove(int32_t fd)
Definition: FsBrokerEnv.h:207
SWC::Error::OK
@ OK
Definition: Error.h:45
SWC_CURRENT_EXCEPTION
#define SWC_CURRENT_EXCEPTION(_msg_)
Definition: Exception.h:119
SWC::Comm::Protocol::FsBroker::Params::CloseReq
Definition: Close.h:17
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::Params::CloseReq::fd
int32_t fd
Definition: Close.h:26
SWC::LOG_ERROR
@ LOG_ERROR
Definition: Logger.h:32
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
Close.h
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::Env::FsBroker::fds
static SWC_CAN_INLINE SWC::FsBroker::Fds & fds() noexcept
Definition: FsBrokerEnv.h:70
SWC::Error::Exception
Definition: Exception.h:21
SWC::Error::SERVER_NOT_READY
@ SERVER_NOT_READY
Definition: Error.h:83