Johannes Sixt <[email protected]> writes:
> Windows does not have process groups. It is, therefore, the simplest
> to pretend that each process is in its own process group.
>
> While here, move the getppid() stub from its old location (between
> two sync related functions) next to the two new functions.
>
> Signed-off-by: Johannes Sixt <[email protected]>
> ---
Thanks for a quick update.
The patch should do for now, but I suspect that it may give us a
better abstraction to make the "is_foreground_fd(int fd)" or even
"is_foreground(void)" the public API that would be implemented as
int we_are_in_the_foreground(void)
{
return getpgid(0) == tcgetpgrp(fileno(stderr));
}
in POSIX and Windows can implement entirely differently.
Thoughts?
> compat/mingw.h | 8 ++++++--
> 1 file changed, 6 insertions(+), 2 deletions(-)
>
> diff --git a/compat/mingw.h b/compat/mingw.h
> index 7b523cf..a552026 100644
> --- a/compat/mingw.h
> +++ b/compat/mingw.h
> @@ -95,8 +95,6 @@ static inline unsigned int alarm(unsigned int seconds)
> { return 0; }
> static inline int fsync(int fd)
> { return _commit(fd); }
> -static inline pid_t getppid(void)
> -{ return 1; }
> static inline void sync(void)
> {}
> static inline uid_t getuid(void)
> @@ -118,6 +116,12 @@ static inline int sigaddset(sigset_t *set, int signum)
> #define SIG_UNBLOCK 0
> static inline int sigprocmask(int how, const sigset_t *set, sigset_t *oldset)
> { return 0; }
> +static inline pid_t getppid(void)
> +{ return 1; }
> +static inline pid_t getpgid(pid_t pid)
> +{ return pid == 0 ? getpid() : pid; }
> +static inline pid_t tcgetpgrp(int fd)
> +{ return getpid(); }
>
> /*
> * simple adaptors
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