io/FileDescriptor, net/SocketDescriptor: make lots of methods "const"
Only the file descriptor value itself is const, but the file itself may be readable/writable.
This commit is contained in:
Max Kellermann
Max Kellermann
parent
69596106d3
commit
bbc82a9892
@ -185,7 +185,7 @@ FileDescriptor::CreatePipe(FileDescriptor &r, FileDescriptor &w) noexcept
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#ifdef _WIN32
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void
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FileDescriptor::SetBinaryMode() noexcept
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FileDescriptor::SetBinaryMode() const noexcept
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{
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_setmode(fd, _O_BINARY);
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}
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@ -209,7 +209,7 @@ FileDescriptor::CreatePipeNonBlock(FileDescriptor &r,
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}
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void
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FileDescriptor::SetNonBlocking() noexcept
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FileDescriptor::SetNonBlocking() const noexcept
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{
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assert(IsDefined());
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@ -218,7 +218,7 @@ FileDescriptor::SetNonBlocking() noexcept
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}
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void
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FileDescriptor::SetBlocking() noexcept
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FileDescriptor::SetBlocking() const noexcept
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{
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assert(IsDefined());
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@ -227,7 +227,7 @@ FileDescriptor::SetBlocking() noexcept
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}
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void
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FileDescriptor::EnableCloseOnExec() noexcept
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FileDescriptor::EnableCloseOnExec() const noexcept
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{
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assert(IsDefined());
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@ -236,7 +236,7 @@ FileDescriptor::EnableCloseOnExec() noexcept
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}
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void
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FileDescriptor::DisableCloseOnExec() noexcept
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FileDescriptor::DisableCloseOnExec() const noexcept
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{
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assert(IsDefined());
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@ -251,7 +251,7 @@ FileDescriptor::Duplicate() const noexcept
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}
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bool
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FileDescriptor::CheckDuplicate(FileDescriptor new_fd) noexcept
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FileDescriptor::CheckDuplicate(FileDescriptor new_fd) const noexcept
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{
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if (*this == new_fd) {
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DisableCloseOnExec();
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@ -285,7 +285,7 @@ FileDescriptor::CreateSignalFD(const sigset_t *mask) noexcept
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#endif
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bool
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FileDescriptor::Rewind() noexcept
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FileDescriptor::Rewind() const noexcept
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{
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assert(IsDefined());
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@ -302,7 +302,7 @@ FileDescriptor::GetSize() const noexcept
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}
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void
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FileDescriptor::FullRead(void *_buffer, std::size_t length)
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FileDescriptor::FullRead(void *_buffer, std::size_t length) const
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{
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auto buffer = (std::byte *)_buffer;
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@ -320,7 +320,7 @@ FileDescriptor::FullRead(void *_buffer, std::size_t length)
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}
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void
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FileDescriptor::FullWrite(const void *_buffer, std::size_t length)
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FileDescriptor::FullWrite(const void *_buffer, std::size_t length) const
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{
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auto buffer = (const std::byte *)_buffer;
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@ -151,36 +151,36 @@ public:
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static bool CreatePipe(FileDescriptor &r, FileDescriptor &w) noexcept;
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#ifdef _WIN32
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void EnableCloseOnExec() noexcept {}
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void DisableCloseOnExec() noexcept {}
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void SetBinaryMode() noexcept;
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void EnableCloseOnExec() const noexcept {}
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void DisableCloseOnExec() const noexcept {}
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void SetBinaryMode() const noexcept;
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#else
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static bool CreatePipeNonBlock(FileDescriptor &r,
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FileDescriptor &w) noexcept;
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void SetBinaryMode() noexcept {}
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void SetBinaryMode() const noexcept {}
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/**
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* Enable non-blocking mode on this file descriptor.
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*/
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void SetNonBlocking() noexcept;
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void SetNonBlocking() const noexcept;
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/**
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* Enable blocking mode on this file descriptor.
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*/
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void SetBlocking() noexcept;
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void SetBlocking() const noexcept;
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/**
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* Auto-close this file descriptor when a new program is
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* executed.
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*/
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void EnableCloseOnExec() noexcept;
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void EnableCloseOnExec() const noexcept;
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/**
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* Do not auto-close this file descriptor when a new program
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* is executed.
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*/
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void DisableCloseOnExec() noexcept;
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void DisableCloseOnExec() const noexcept;
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/**
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* Duplicate this file descriptor.
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@ -203,7 +203,7 @@ public:
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* this method to inject file descriptors into a new child
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* process, to be used by a newly executed program.
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*/
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bool CheckDuplicate(FileDescriptor new_fd) noexcept;
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bool CheckDuplicate(FileDescriptor new_fd) const noexcept;
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#endif
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#ifdef __linux__
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@ -223,13 +223,13 @@ public:
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/**
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* Rewind the pointer to the beginning of the file.
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*/
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bool Rewind() noexcept;
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bool Rewind() const noexcept;
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off_t Seek(off_t offset) noexcept {
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off_t Seek(off_t offset) const noexcept {
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return lseek(Get(), offset, SEEK_SET);
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}
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off_t Skip(off_t offset) noexcept {
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off_t Skip(off_t offset) const noexcept {
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return lseek(Get(), offset, SEEK_CUR);
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}
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@ -245,12 +245,13 @@ public:
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off_t GetSize() const noexcept;
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#ifndef _WIN32
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ssize_t ReadAt(off_t offset, void *buffer, std::size_t length) noexcept {
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ssize_t ReadAt(off_t offset,
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void *buffer, std::size_t length) const noexcept {
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return ::pread(fd, buffer, length, offset);
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}
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#endif
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ssize_t Read(void *buffer, std::size_t length) noexcept {
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ssize_t Read(void *buffer, std::size_t length) const noexcept {
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return ::read(fd, buffer, length);
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}
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@ -258,9 +259,9 @@ public:
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* Read until all of the given buffer has been filled. Throws
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* on error.
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*/
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void FullRead(void *buffer, std::size_t length);
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void FullRead(void *buffer, std::size_t length) const;
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ssize_t Write(const void *buffer, std::size_t length) noexcept {
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ssize_t Write(const void *buffer, std::size_t length) const noexcept {
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return ::write(fd, buffer, length);
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}
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@ -268,7 +269,7 @@ public:
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* Write until all of the given buffer has been written.
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* Throws on error.
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*/
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void FullWrite(const void *buffer, std::size_t length);
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void FullWrite(const void *buffer, std::size_t length) const;
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#ifndef _WIN32
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int Poll(short events, int timeout) const noexcept;
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@ -78,7 +78,7 @@ SocketDescriptor::Close() noexcept
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#endif
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SocketDescriptor
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SocketDescriptor::Accept() noexcept
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SocketDescriptor::Accept() const noexcept
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{
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#ifdef __linux__
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int connection_fd = ::accept4(Get(), nullptr, nullptr, SOCK_CLOEXEC);
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@ -120,7 +120,7 @@ SocketDescriptor::AcceptNonBlock(StaticSocketAddress &address) const noexcept
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}
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bool
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SocketDescriptor::Connect(SocketAddress address) noexcept
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SocketDescriptor::Connect(SocketAddress address) const noexcept
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{
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assert(address.IsDefined());
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@ -213,7 +213,7 @@ SocketDescriptor::CreateSocketPairNonBlock(int domain, int type, int protocol,
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#endif
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int
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SocketDescriptor::GetError() noexcept
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SocketDescriptor::GetError() const noexcept
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{
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assert(IsDefined());
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@ -254,7 +254,7 @@ SocketDescriptor::GetPeerCredentials() const noexcept
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#ifdef _WIN32
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bool
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SocketDescriptor::SetNonBlocking() noexcept
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SocketDescriptor::SetNonBlocking() const noexcept
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{
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u_long val = 1;
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return ioctlsocket(fd, FIONBIO, &val) == 0;
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@ -264,7 +264,7 @@ SocketDescriptor::SetNonBlocking() noexcept
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bool
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SocketDescriptor::SetOption(int level, int name,
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const void *value, std::size_t size) noexcept
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const void *value, std::size_t size) const noexcept
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{
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assert(IsDefined());
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@ -273,13 +273,13 @@ SocketDescriptor::SetOption(int level, int name,
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}
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bool
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SocketDescriptor::SetKeepAlive(bool value) noexcept
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SocketDescriptor::SetKeepAlive(bool value) const noexcept
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{
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return SetBoolOption(SOL_SOCKET, SO_KEEPALIVE, value);
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}
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bool
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SocketDescriptor::SetReuseAddress(bool value) noexcept
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SocketDescriptor::SetReuseAddress(bool value) const noexcept
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{
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return SetBoolOption(SOL_SOCKET, SO_REUSEADDR, value);
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}
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@ -287,50 +287,50 @@ SocketDescriptor::SetReuseAddress(bool value) noexcept
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#ifdef __linux__
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bool
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SocketDescriptor::SetReusePort(bool value) noexcept
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SocketDescriptor::SetReusePort(bool value) const noexcept
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{
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return SetBoolOption(SOL_SOCKET, SO_REUSEPORT, value);
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}
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bool
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SocketDescriptor::SetFreeBind(bool value) noexcept
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SocketDescriptor::SetFreeBind(bool value) const noexcept
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{
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return SetBoolOption(IPPROTO_IP, IP_FREEBIND, value);
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}
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bool
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SocketDescriptor::SetNoDelay(bool value) noexcept
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SocketDescriptor::SetNoDelay(bool value) const noexcept
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{
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return SetBoolOption(IPPROTO_TCP, TCP_NODELAY, value);
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}
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bool
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SocketDescriptor::SetCork(bool value) noexcept
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SocketDescriptor::SetCork(bool value) const noexcept
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{
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return SetBoolOption(IPPROTO_TCP, TCP_CORK, value);
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}
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bool
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SocketDescriptor::SetTcpDeferAccept(const int &seconds) noexcept
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SocketDescriptor::SetTcpDeferAccept(const int &seconds) const noexcept
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{
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return SetOption(IPPROTO_TCP, TCP_DEFER_ACCEPT, &seconds, sizeof(seconds));
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}
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bool
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SocketDescriptor::SetTcpUserTimeout(const unsigned &milliseconds) noexcept
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SocketDescriptor::SetTcpUserTimeout(const unsigned &milliseconds) const noexcept
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{
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return SetOption(IPPROTO_TCP, TCP_USER_TIMEOUT,
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&milliseconds, sizeof(milliseconds));
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}
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bool
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SocketDescriptor::SetV6Only(bool value) noexcept
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SocketDescriptor::SetV6Only(bool value) const noexcept
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{
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return SetBoolOption(IPPROTO_IPV6, IPV6_V6ONLY, value);
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}
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bool
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SocketDescriptor::SetBindToDevice(const char *name) noexcept
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SocketDescriptor::SetBindToDevice(const char *name) const noexcept
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{
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return SetOption(SOL_SOCKET, SO_BINDTODEVICE, name, strlen(name));
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}
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@ -338,7 +338,7 @@ SocketDescriptor::SetBindToDevice(const char *name) noexcept
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#ifdef TCP_FASTOPEN
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bool
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SocketDescriptor::SetTcpFastOpen(int qlen) noexcept
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SocketDescriptor::SetTcpFastOpen(int qlen) const noexcept
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{
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return SetOption(SOL_TCP, TCP_FASTOPEN, &qlen, sizeof(qlen));
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}
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@ -346,7 +346,7 @@ SocketDescriptor::SetTcpFastOpen(int qlen) noexcept
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#endif
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bool
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SocketDescriptor::AddMembership(const IPv4Address &address) noexcept
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SocketDescriptor::AddMembership(const IPv4Address &address) const noexcept
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{
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struct ip_mreq r{address.GetAddress(), IPv4Address(0).GetAddress()};
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return setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP,
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@ -354,7 +354,7 @@ SocketDescriptor::AddMembership(const IPv4Address &address) noexcept
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}
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bool
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SocketDescriptor::AddMembership(const IPv6Address &address) noexcept
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SocketDescriptor::AddMembership(const IPv6Address &address) const noexcept
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{
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struct ipv6_mreq r{address.GetAddress(), 0};
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r.ipv6mr_interface = address.GetScopeId();
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@ -363,7 +363,7 @@ SocketDescriptor::AddMembership(const IPv6Address &address) noexcept
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}
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bool
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SocketDescriptor::AddMembership(SocketAddress address) noexcept
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SocketDescriptor::AddMembership(SocketAddress address) const noexcept
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{
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switch (address.GetFamily()) {
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case AF_INET:
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@ -381,7 +381,7 @@ SocketDescriptor::AddMembership(SocketAddress address) noexcept
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#endif
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bool
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SocketDescriptor::Bind(SocketAddress address) noexcept
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SocketDescriptor::Bind(SocketAddress address) const noexcept
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{
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return bind(Get(), address.GetAddress(), address.GetSize()) == 0;
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}
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@ -389,7 +389,7 @@ SocketDescriptor::Bind(SocketAddress address) noexcept
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#ifdef __linux__
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bool
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SocketDescriptor::AutoBind() noexcept
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SocketDescriptor::AutoBind() const noexcept
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{
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static constexpr sa_family_t family = AF_LOCAL;
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return Bind(SocketAddress((const struct sockaddr *)&family,
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@ -399,7 +399,7 @@ SocketDescriptor::AutoBind() noexcept
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#endif
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bool
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SocketDescriptor::Listen(int backlog) noexcept
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SocketDescriptor::Listen(int backlog) const noexcept
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{
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return listen(Get(), backlog) == 0;
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}
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@ -431,7 +431,7 @@ SocketDescriptor::GetPeerAddress() const noexcept
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}
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ssize_t
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SocketDescriptor::Read(void *buffer, std::size_t length) noexcept
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SocketDescriptor::Read(void *buffer, std::size_t length) const noexcept
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{
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int flags = 0;
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#ifndef _WIN32
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@ -442,7 +442,7 @@ SocketDescriptor::Read(void *buffer, std::size_t length) noexcept
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}
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ssize_t
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SocketDescriptor::Write(const void *buffer, std::size_t length) noexcept
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SocketDescriptor::Write(const void *buffer, std::size_t length) const noexcept
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{
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int flags = 0;
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#ifdef __linux__
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@ -496,7 +496,7 @@ SocketDescriptor::WaitWritable(int timeout_ms) const noexcept
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ssize_t
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SocketDescriptor::Read(void *buffer, std::size_t length,
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StaticSocketAddress &address) noexcept
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StaticSocketAddress &address) const noexcept
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{
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int flags = 0;
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#ifndef _WIN32
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@ -514,7 +514,7 @@ SocketDescriptor::Read(void *buffer, std::size_t length,
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ssize_t
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SocketDescriptor::Write(const void *buffer, std::size_t length,
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SocketAddress address) noexcept
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SocketAddress address) const noexcept
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{
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int flags = 0;
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#ifndef _WIN32
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@ -531,19 +531,19 @@ SocketDescriptor::Write(const void *buffer, std::size_t length,
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#ifndef _WIN32
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void
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SocketDescriptor::Shutdown() noexcept
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SocketDescriptor::Shutdown() const noexcept
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{
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shutdown(Get(), SHUT_RDWR);
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}
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void
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SocketDescriptor::ShutdownRead() noexcept
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SocketDescriptor::ShutdownRead() const noexcept
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{
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shutdown(Get(), SHUT_RD);
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}
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void
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SocketDescriptor::ShutdownWrite() noexcept
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SocketDescriptor::ShutdownWrite() const noexcept
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{
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shutdown(Get(), SHUT_WR);
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}
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@ -118,7 +118,7 @@ public:
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using FileDescriptor::CheckDuplicate;
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using FileDescriptor::Close;
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#else
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bool SetNonBlocking() noexcept;
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bool SetNonBlocking() const noexcept;
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/**
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* This method replaces FileDescriptor::Close(), using closesocket()
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@ -154,7 +154,8 @@ public:
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SocketDescriptor &b) noexcept;
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#endif
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int GetError() noexcept;
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[[gnu::pure]]
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int GetError() const noexcept;
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/**
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* @return the value size or 0 on error
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@ -172,62 +173,63 @@ public:
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#endif
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bool SetOption(int level, int name,
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const void *value, std::size_t size) noexcept;
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const void *value, std::size_t size) const noexcept;
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bool SetIntOption(int level, int name, const int &value) noexcept {
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bool SetIntOption(int level, int name,
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const int &value) const noexcept {
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return SetOption(level, name, &value, sizeof(value));
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}
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bool SetBoolOption(int level, int name, bool value) noexcept {
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bool SetBoolOption(int level, int name, bool value) const noexcept {
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return SetIntOption(level, name, value);
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}
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bool SetKeepAlive(bool value=true) noexcept;
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bool SetReuseAddress(bool value=true) noexcept;
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bool SetKeepAlive(bool value=true) const noexcept;
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bool SetReuseAddress(bool value=true) const noexcept;
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#ifdef __linux__
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bool SetReusePort(bool value=true) noexcept;
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bool SetFreeBind(bool value=true) noexcept;
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bool SetNoDelay(bool value=true) noexcept;
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bool SetCork(bool value=true) noexcept;
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bool SetReusePort(bool value=true) const noexcept;
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bool SetFreeBind(bool value=true) const noexcept;
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bool SetNoDelay(bool value=true) const noexcept;
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bool SetCork(bool value=true) const noexcept;
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bool SetTcpDeferAccept(const int &seconds) noexcept;
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bool SetTcpDeferAccept(const int &seconds) const noexcept;
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/**
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* Setter for TCP_USER_TIMEOUT.
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*/
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bool SetTcpUserTimeout(const unsigned &milliseconds) noexcept;
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bool SetTcpUserTimeout(const unsigned &milliseconds) const noexcept;
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bool SetV6Only(bool value) noexcept;
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bool SetV6Only(bool value) const noexcept;
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||||
|
||||
/**
|
||||
* Setter for SO_BINDTODEVICE.
|
||||
*/
|
||||
bool SetBindToDevice(const char *name) noexcept;
|
||||
bool SetBindToDevice(const char *name) const noexcept;
|
||||
|
||||
bool SetTcpFastOpen(int qlen=16) noexcept;
|
||||
bool SetTcpFastOpen(int qlen=16) const noexcept;
|
||||
|
||||
bool AddMembership(const IPv4Address &address) noexcept;
|
||||
bool AddMembership(const IPv6Address &address) noexcept;
|
||||
bool AddMembership(SocketAddress address) noexcept;
|
||||
bool AddMembership(const IPv4Address &address) const noexcept;
|
||||
bool AddMembership(const IPv6Address &address) const noexcept;
|
||||
bool AddMembership(SocketAddress address) const noexcept;
|
||||
#endif
|
||||
|
||||
bool Bind(SocketAddress address) noexcept;
|
||||
bool Bind(SocketAddress address) const noexcept;
|
||||
|
||||
#ifdef __linux__
|
||||
/**
|
||||
* Binds the socket to a unique abstract address.
|
||||
*/
|
||||
bool AutoBind() noexcept;
|
||||
bool AutoBind() const noexcept;
|
||||
#endif
|
||||
|
||||
bool Listen(int backlog) noexcept;
|
||||
bool Listen(int backlog) const noexcept;
|
||||
|
||||
SocketDescriptor Accept() noexcept;
|
||||
SocketDescriptor Accept() const noexcept;
|
||||
SocketDescriptor AcceptNonBlock() const noexcept;
|
||||
SocketDescriptor AcceptNonBlock(StaticSocketAddress &address) const noexcept;
|
||||
|
||||
bool Connect(SocketAddress address) noexcept;
|
||||
bool Connect(SocketAddress address) const noexcept;
|
||||
|
||||
[[gnu::pure]]
|
||||
StaticSocketAddress GetLocalAddress() const noexcept;
|
||||
@ -235,8 +237,8 @@ public:
|
||||
[[gnu::pure]]
|
||||
StaticSocketAddress GetPeerAddress() const noexcept;
|
||||
|
||||
ssize_t Read(void *buffer, std::size_t length) noexcept;
|
||||
ssize_t Write(const void *buffer, std::size_t length) noexcept;
|
||||
ssize_t Read(void *buffer, std::size_t length) const noexcept;
|
||||
ssize_t Write(const void *buffer, std::size_t length) const noexcept;
|
||||
|
||||
#ifdef _WIN32
|
||||
int WaitReadable(int timeout_ms) const noexcept;
|
||||
@ -251,18 +253,18 @@ public:
|
||||
* Receive a datagram and return the source address.
|
||||
*/
|
||||
ssize_t Read(void *buffer, std::size_t length,
|
||||
StaticSocketAddress &address) noexcept;
|
||||
StaticSocketAddress &address) const noexcept;
|
||||
|
||||
/**
|
||||
* Send a datagram to the specified address.
|
||||
*/
|
||||
ssize_t Write(const void *buffer, std::size_t length,
|
||||
SocketAddress address) noexcept;
|
||||
SocketAddress address) const noexcept;
|
||||
|
||||
#ifndef _WIN32
|
||||
void Shutdown() noexcept;
|
||||
void ShutdownRead() noexcept;
|
||||
void ShutdownWrite() noexcept;
|
||||
void Shutdown() const noexcept;
|
||||
void ShutdownRead() const noexcept;
|
||||
void ShutdownWrite() const noexcept;
|
||||
#endif
|
||||
};
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user