Acquire ownership of a file, without blocking
#include <stdio.h> int ftrylockfile( FILE* file );
libc
Use the -l c option to qcc to link against this library. This library is usually included automatically.
The ftrylockfile() function is used by a thread to acquire ownership of a FILE if the object is available; ftrylockfile() is a nonblocking version of flockfile().
Safety: | |
---|---|
Cancellation point | No |
Interrupt handler | No |
Signal handler | Yes |
Thread | Yes |
flockfile(), getc_unlocked(), getchar_unlocked(), putc_unlocked(), putchar_unlocked()