flushall()
Flush all input/output buffers
Synopsis:
#include <stdio.h> int flushall( void );
Library:
libc
Use the -l c option to qcc to link against this library. This library is usually included automatically.
Description:
The flushall() function flushes all buffers associated with open input/output streams. A subsequent read operation on an input stream reads new data from the associated stream.
Calling the flushall() function is equivalent to calling fflush() for all open streams.
Returns:
- 0
- Success.
- -1
- An error occurred (errno is set).
Classification:
| Safety: | |
|---|---|
| Cancellation point | Yes |
| Interrupt handler | No |
| Signal handler | No |
| Thread | Yes |
Caveats:
The QNX 4 version of this function returns the number of streams flushed.