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DynSock Class Reference

A mocked Sock alternative that allows providing the data to be returned by Recv() and inspecting the data that has been supplied to Send(). More...

#include <net.h>

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Classes

class  Pipe
 Unidirectional bytes or CNetMessage queue (FIFO). More...
 
struct  Pipes
 
class  Queue
 A basic thread-safe queue, used for queuing sockets to be returned by Accept(). More...
 

Public Member Functions

 DynSock (std::shared_ptr< Pipes > pipes, std::shared_ptr< Queue > accept_sockets)
 Create a new mocked sock. More...
 
 ~DynSock ()
 
ssize_t Recv (void *buf, size_t len, int flags) const override
 recv(2) wrapper. More...
 
ssize_t Send (const void *buf, size_t len, int) const override
 send(2) wrapper. More...
 
std::unique_ptr< SockAccept (sockaddr *addr, socklen_t *addr_len) const override
 accept(2) wrapper. More...
 
bool Wait (std::chrono::milliseconds timeout, Event requested, Event *occurred=nullptr) const override
 Wait for readiness for input (recv) or output (send). More...
 
bool WaitMany (std::chrono::milliseconds timeout, EventsPerSock &events_per_sock) const override
 Same as Wait(), but wait on many sockets within the same timeout. More...
 
- Public Member Functions inherited from ZeroSock
 ZeroSock ()
 
 ~ZeroSock () override
 
ssize_t Send (const void *, size_t len, int) const override
 send(2) wrapper. More...
 
ssize_t Recv (void *buf, size_t len, int flags) const override
 recv(2) wrapper. More...
 
int Connect (const sockaddr *, socklen_t) const override
 connect(2) wrapper. More...
 
int Bind (const sockaddr *, socklen_t) const override
 bind(2) wrapper. More...
 
int Listen (int) const override
 listen(2) wrapper. More...
 
std::unique_ptr< SockAccept (sockaddr *addr, socklen_t *addr_len) const override
 accept(2) wrapper. More...
 
int GetSockOpt (int level, int opt_name, void *opt_val, socklen_t *opt_len) const override
 getsockopt(2) wrapper. More...
 
int SetSockOpt (int, int, const void *, socklen_t) const override
 setsockopt(2) wrapper. More...
 
int GetSockName (sockaddr *name, socklen_t *name_len) const override
 getsockname(2) wrapper. More...
 
bool SetNonBlocking () const override
 Set the non-blocking option on the socket. More...
 
bool IsSelectable () const override
 Check if the underlying socket can be used for select(2) (or the Wait() method). More...
 
bool Wait (std::chrono::milliseconds timeout, Event requested, Event *occurred=nullptr) const override
 Wait for readiness for input (recv) or output (send). More...
 
bool WaitMany (std::chrono::milliseconds timeout, EventsPerSock &events_per_sock) const override
 Same as Wait(), but wait on many sockets within the same timeout. More...
 
- Public Member Functions inherited from Sock
 Sock ()=delete
 
 Sock (SOCKET s)
 Take ownership of an existent socket. More...
 
 Sock (const Sock &)=delete
 Copy constructor, disabled because closing the same socket twice is undesirable. More...
 
 Sock (Sock &&other)
 Move constructor, grab the socket from another object and close ours (if set). More...
 
virtual ~Sock ()
 Destructor, close the socket or do nothing if empty. More...
 
Sockoperator= (const Sock &)=delete
 Copy assignment operator, disabled because closing the same socket twice is undesirable. More...
 
virtual Sockoperator= (Sock &&other)
 Move assignment operator, grab the socket from another object and close ours (if set). More...
 
virtual ssize_t Send (const void *data, size_t len, int flags) const
 send(2) wrapper. More...
 
virtual ssize_t Recv (void *buf, size_t len, int flags) const
 recv(2) wrapper. More...
 
virtual int Connect (const sockaddr *addr, socklen_t addr_len) const
 connect(2) wrapper. More...
 
virtual int Bind (const sockaddr *addr, socklen_t addr_len) const
 bind(2) wrapper. More...
 
virtual int Listen (int backlog) const
 listen(2) wrapper. More...
 
virtual std::unique_ptr< SockAccept (sockaddr *addr, socklen_t *addr_len) const
 accept(2) wrapper. More...
 
virtual int GetSockOpt (int level, int opt_name, void *opt_val, socklen_t *opt_len) const
 getsockopt(2) wrapper. More...
 
virtual int SetSockOpt (int level, int opt_name, const void *opt_val, socklen_t opt_len) const
 setsockopt(2) wrapper. More...
 
virtual int GetSockName (sockaddr *name, socklen_t *name_len) const
 getsockname(2) wrapper. More...
 
virtual bool SetNonBlocking () const
 Set the non-blocking option on the socket. More...
 
virtual bool IsSelectable () const
 Check if the underlying socket can be used for select(2) (or the Wait() method). More...
 
virtual bool Wait (std::chrono::milliseconds timeout, Event requested, Event *occurred=nullptr) const
 Wait for readiness for input (recv) or output (send). More...
 
virtual bool WaitMany (std::chrono::milliseconds timeout, EventsPerSock &events_per_sock) const
 Same as Wait(), but wait on many sockets within the same timeout. More...
 
virtual void SendComplete (Span< const unsigned char > data, std::chrono::milliseconds timeout, CThreadInterrupt &interrupt) const
 Send the given data, retrying on transient errors. More...
 
virtual void SendComplete (Span< const char > data, std::chrono::milliseconds timeout, CThreadInterrupt &interrupt) const
 Convenience method, equivalent to SendComplete(MakeUCharSpan(data), timeout, interrupt). More...
 
virtual std::string RecvUntilTerminator (uint8_t terminator, std::chrono::milliseconds timeout, CThreadInterrupt &interrupt, size_t max_data) const
 Read from socket until a terminator character is encountered. More...
 
virtual bool IsConnected (std::string &errmsg) const
 Check if still connected. More...
 
bool operator== (SOCKET s) const
 Check if the internal socket is equal to s. More...
 

Private Member Functions

DynSockoperator= (Sock &&) override
 Move assignment operator, grab the socket from another object and close ours (if set). More...
 

Private Attributes

std::shared_ptr< Pipesm_pipes
 
std::shared_ptr< Queuem_accept_sockets
 

Additional Inherited Members

- Public Types inherited from Sock
using Event = uint8_t
 
using EventsPerSock = std::unordered_map< std::shared_ptr< const Sock >, Events, HashSharedPtrSock, EqualSharedPtrSock >
 On which socket to wait for what events in WaitMany(). More...
 
- Static Public Attributes inherited from Sock
static constexpr Event RECV = 0b001
 If passed to Wait(), then it will wait for readiness to read from the socket. More...
 
static constexpr Event SEND = 0b010
 If passed to Wait(), then it will wait for readiness to send to the socket. More...
 
static constexpr Event ERR = 0b100
 Ignored if passed to Wait(), but could be set in the occurred events if an exceptional condition has occurred on the socket or if it has been disconnected. More...
 
- Protected Attributes inherited from Sock
SOCKET m_socket
 Contained socket. More...
 

Detailed Description

A mocked Sock alternative that allows providing the data to be returned by Recv() and inspecting the data that has been supplied to Send().

Definition at line 212 of file net.h.

Constructor & Destructor Documentation

◆ DynSock()

DynSock::DynSock ( std::shared_ptr< Pipes pipes,
std::shared_ptr< Queue accept_sockets 
)
explicit

Create a new mocked sock.

Parameters
[in]pipesSend/recv pipes used by the Send() and Recv() methods.
[in]accept_socketsSockets to return by the Accept() method.

Definition at line 332 of file net.cpp.

◆ ~DynSock()

DynSock::~DynSock ( )

Definition at line 337 of file net.cpp.

Member Function Documentation

◆ Accept()

std::unique_ptr< Sock > DynSock::Accept ( sockaddr *  addr,
socklen_t *  addr_len 
) const
overridevirtual

accept(2) wrapper.

Equivalent to std::make_unique<Sock>(accept(m_socket, addr, addr_len)). Code that uses this wrapper can be unit tested if this method is overridden by a mock Sock implementation. The returned unique_ptr is empty if accept() failed in which case errno will be set.

Reimplemented from ZeroSock.

Definition at line 353 of file net.cpp.

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◆ operator=()

DynSock & DynSock::operator= ( Sock &&  other)
overrideprivatevirtual

Move assignment operator, grab the socket from another object and close ours (if set).

Reimplemented from ZeroSock.

Definition at line 406 of file net.cpp.

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◆ Recv()

ssize_t DynSock::Recv ( void *  buf,
size_t  len,
int  flags 
) const
overridevirtual

recv(2) wrapper.

Equivalent to recv(m_socket, buf, len, flags);. Code that uses this wrapper can be unit tested if this method is overridden by a mock Sock implementation.

Reimplemented from ZeroSock.

Definition at line 342 of file net.cpp.

◆ Send()

ssize_t DynSock::Send ( const void *  data,
size_t  len,
int  flags 
) const
overridevirtual

send(2) wrapper.

Equivalent to send(m_socket, data, len, flags);. Code that uses this wrapper can be unit tested if this method is overridden by a mock Sock implementation.

Reimplemented from ZeroSock.

Definition at line 347 of file net.cpp.

◆ Wait()

bool DynSock::Wait ( std::chrono::milliseconds  timeout,
Event  requested,
Event occurred = nullptr 
) const
overridevirtual

Wait for readiness for input (recv) or output (send).

Parameters
[in]timeoutWait this much for at least one of the requested events to occur.
[in]requestedWait for those events, bitwise-or of RECV and SEND.
[out]occurredIf not nullptr and the function returns true, then this indicates which of the requested events occurred (ERR will be added, even if not requested, if an exceptional event occurs on the socket). A timeout is indicated by return value of true and occurred being set to 0.
Returns
true on success (or timeout, if occurred of 0 is returned), false otherwise

Reimplemented from ZeroSock.

Definition at line 359 of file net.cpp.

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◆ WaitMany()

bool DynSock::WaitMany ( std::chrono::milliseconds  timeout,
EventsPerSock events_per_sock 
) const
overridevirtual

Same as Wait(), but wait on many sockets within the same timeout.

Parameters
[in]timeoutWait this long for at least one of the requested events to occur.
[in,out]events_per_sockWait for the requested events on these sockets and set occurred for the events that actually occurred.
Returns
true on success (or timeout, if all what[].occurred are returned as 0), false otherwise

Reimplemented from ZeroSock.

Definition at line 372 of file net.cpp.

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Member Data Documentation

◆ m_accept_sockets

std::shared_ptr<Queue> DynSock::m_accept_sockets
private

Definition at line 333 of file net.h.

◆ m_pipes

std::shared_ptr<Pipes> DynSock::m_pipes
private

Definition at line 332 of file net.h.


The documentation for this class was generated from the following files: