src/butil/fd_utility.h

// Licensed to the Apache Software Foundation (ASF) under one
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// to you under the Apache License, Version 2.0 (the
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// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
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// Date: Mon. Nov 7 14:47:36 CST 2011

// Utility functions on file descriptor.

#ifndef BUTIL_FD_UTILITY_H
#define BUTIL_FD_UTILITY_H

namespace butil {

// Make file descriptor |fd| non-blocking
// Returns 0 on success, -1 otherwise and errno is set (by fcntl)
int make_non_blocking(int fd);

// Make file descriptor |fd| blocking
// Returns 0 on success, -1 otherwise and errno is set (by fcntl)
int make_blocking(int fd);

// Make file descriptor |fd| automatically closed during exec()
// Returns 0 on success, -1 when error and errno is set (by fcntl)
int make_close_on_exec(int fd);

// Disable nagling on file descriptor |socket|.
// Returns 0 on success, -1 when error and errno is set (by setsockopt)
int make_no_delay(int socket);

}  // namespace butil

#endif  // BUTIL_FD_UTILITY_H