On Fri, May 1, 2009 at 12:35 PM, Adam Langley <a...@chromium.org> wrote:
> On POSIX, it uses GCC magic to return the correct type based on the expression
> and restarts the system call if it throws EINTR. Here it is:
>
> #define HANDLE_EINTR(x) ({ \
> typeof(x) ret; \
> do { \
> ret = x; \
> } while (ret == -1 && errno == EINTR); \
> ret;\
> })
Wow, that's pretty deep magic.
> And you can use it like:
> HANDLE_EINTR(close(fd));
Isn't it disaster if you say:
HANDLE_EINTR(close(ret));
Adam
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