Re: Write is not atomic?

[Max Filippov]

On Tue, Oct 16, 2012 at 3:24 AM, Philippe Troin <phil@xxxxxxxx> wrote:
> On Tue, 2012-10-16 at 10:13 +1100, Dave Chinner wrote:
>> On Mon, Oct 15, 2012 at 11:36:15PM +0200, Juliusz Chroboczek wrote:
>> > The following fragment of code
>> >
>> >     int fd;
>> >     fd = open("exemple", O_CREAT | O_WRONLY | O_TRUNC, 0666);
>> >     fork();
>> >     write(fd, "Ouille", 6);
>> >     close(fd);
>
> can be replaced with:
>
>         int fd;
>         fd = open("exemple", O_CREAT | O_WRONLY | O_TRUNC | O_APPEND, 0666);
>         fork();
>         write(fd, "Ouille", 6);
>         close(fd);

Fails the same way as the original. I guess O_APPEND doesn't work this way
for writes to the shared file descriptor.

-- 
Thanks.
-- Max
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