Linux File I/O

問題

• read()、write()、ioctl() 有 race 問題嗎？

參考

TLPI §4 & §5

4 FILE I/O: THE UNIVERSAL I/O MODEL
4.1 Overview
4.2 Universality of I/O
4.3 Opening a File: open()
4.3.1 The open() flags Argument
4.3.2 Errors from open()
4.3.3 The creat() System Call
4.4 Reading from a File: read()
4.5 Writing to a File: write()
4.6 Closing a File: close()
4.7 Changing the File Offset: lseek()
4.8 Operations Outside the Universal I/O Model: ioctl()
4.9 Summary
4.10 Exercises

5 FILE I/O: FURTHER DETAILS
5.1 Atomicity and Race Conditions
5.2 File Control Operations: fcntl()
5.3 Open File Status Flags
5.4 Relationship Between File Descriptors and Open Files
5.5 Duplicating File Descriptors
5.6 File I/O at a Specified Offset: pread() and pwrite()
5.7 Scatter-Gather I/O: readv() and writev()
5.8 Truncating a File: truncate() and ftruncate()
5.9 Nonblocking I/O
5.10 I/O on Large Files
5.11 The /dev/fd Directory
5.12 Creating Temporary Files
5.13 Summary
5.14 Exercises