fwrite() now tries to fill the write buffer as far is possible and will only resort to using the __putc() macros when necessary. This should improve write performance by quite a bit.
If the write buffer happens to be empty and the number of bytes to write is at least as large as the write buffer, then fwrite() will directly call write(). This should improve write performance, too.
If the file is in unbuffered mode, fwrite() now always calls write(), bypassing the write buffer altogether.
- Replaced ISO Latin 1 code #160 with a plain blank space (ASCII code #32) where necessary
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parameter only once, and to be free of side-effects when tinkering
with the buffer position.
- isatty() had the __fd_lock() call in the wrong place, which could have
led to cleanup problems later.
- The close action in the stdio, socket and termios hook code now
also zaps the fd pointer itself after cleaning up the file descriptor
table entry.
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parameters to the file system. The first (dp_Arg1) should have been
zero. Ouch.
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of records or the size of each record is zero, both now call clearerr() to
avoid giving the caller the wrong impression that an EOF or error occured.
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- Made the clearerr(), feof() and ferror() macros thread-safe.
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and dirent data operations. That should do it! While the library is
not reentrant (this is not ixemul.library) it should be thread-safe
now. Thread-safe in the sense of POSIX 1003.1c-1995.
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and ftrylockfile().
- Modified the internal FILE structure to allow for thread locking.
Note that this again requires that the library is rebuilt!
- Added or modified macros for getc_unlocked(), getchar_unlocked(),
putc_unlocked() and putchar_unlocked().
- Added rand_r().
- Added flockfile()/funlockfile() wrappers around all stdio
functions.
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code which initialized them.
- Reading/changing the errno variable is no longer done directly, but
involves accessor functions.
- References to the HUGE_VAL quantity now involve an accessor function, too.
- Changed the manner in which the __huge_val constant is initialized by
the __math_init() function.
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exception are "interactive" files such as console windows. For these
line buffered output is used.
- Whether or not a file is bound to an interactive device, such as a
console window, is now checked and remembered after a file descriptor
has been associated with it.
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