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Hi,
I am porting a Linux program to macosx (target is 10.6 version) and
the program uses openat/unlinkat/... functions. Although these
functions are not in POSIX, they are widely used on *nixes and the
part proposal the next POSIX.
My question what is the best equivalent for the opentat() functions
that can be used in multithreaded application. Currently I use
something like this:
int openat(int dirfd, const char *pathname, int flags, ...)
{
int fd;
if(fchdir(dirfd) < 0) {
perror("fchdir");
return -1;
}
fd = open(pathname, flags, mode);
// chdir to the original CWD
return fd;
}
But this is not a perfect solution - current working directory is
shared among all threads, it means that openat() may affect other
threads. Is there an equivalent of this implementation without
changing the current directory?
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