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ignore SIGPIPE signal when use ::sendfile in linux #712

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merged 1 commit into from
Jul 8, 2024
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ignore SIGPIPE signal when use ::sendfile in linux #712

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9 changes: 7 additions & 2 deletions include/ylt/coro_io/coro_io.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -507,6 +507,11 @@ inline std::error_code connect(executor_t &executor,
}

#ifdef __linux__
// this help us ignore SIGPIPE when send data to a unexpected closed socket.
inline auto pipe_signal_handler = [] {
std::signal(SIGPIPE, SIG_IGN);
return 0;
}();

inline async_simple::coro::Lazy<std::pair<std::error_code, std::size_t>>
async_sendfile(asio::ip::tcp::socket &socket, int fd, off_t offset,
Expand All @@ -523,8 +528,8 @@ async_sendfile(asio::ip::tcp::socket &socket, int fd, off_t offset,
while (true) {
// Try the system call.
errno = 0;
int n = ::sendfile(socket.native_handle(), fd, &offset,
std::min(std::size_t{65536}, least_bytes));
ssize_t n = ::sendfile(socket.native_handle(), fd, &offset,
std::min(std::size_t{65536}, least_bytes));
ec = asio::error_code(n < 0 ? errno : 0,
asio::error::get_system_category());
least_bytes -= ec ? 0 : n;
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