bool w_string_piece::operator<(w_string_piece other) const {
int res;
if (size() < other.size()) {
res = memcmp(data(), other.data(), size());
return (res == 0 ? -1 : res) < 0;
} else if (size() > other.size()) {
res = memcmp(data(), other.data(), other.size());
return (res == 0 ? +1 : res) < 0;
}
return memcmp(data(), other.data(), size()) < 0;
}
bool w_string_piece::operator==(w_string_piece other) const {
if (s_ == other.s_ && e_ == other.e_) {
return true;
}
if (size() != other.size()) {
return false;
}
return memcmp(data(), other.data(), size()) == 0;
}
w_string w_dir_path_cat_str(
const struct watchman_dir* dir,
w_string_piece extra) {
uint32_t length = 0;
const struct watchman_dir* d;
w_string_t *s;
char *buf, *end;
if (extra.size()) {
length = extra.size() + 1 /* separator */;
}
for (d = dir; d; d = d->parent) {
length += d->name.size() + 1 /* separator OR final NUL terminator */;
}
s = (w_string_t*)(new char[sizeof(*s) + length]);
new (s) watchman_string();
s->refcnt = 1;
s->len = length - 1;
buf = (char *)(s + 1);
end = buf + s->len;
*end = 0;
if (extra.size()) {
end -= extra.size();
memcpy(end, extra.data(), extra.size());
}
for (d = dir; d; d = d->parent) {
if (d != dir || (extra.size())) {
--end;
*end = '/';
}
end -= d->name.size();
memcpy(end, d->name.data(), d->name.size());
}
s->buf = buf;
return w_string(s, false);
}
void ChildProcess::Options::chdir(w_string_piece path) {
cwd_ = std::string(path.data(), path.size());
#ifdef _WIN32
posix_spawnattr_setcwd_np(&inner_->attr, cwd_.c_str());
#endif
}
bool w_string_piece::startsWith(w_string_piece prefix) const {
if (prefix.size() > size()) {
return false;
}
return memcmp(data(), prefix.data(), prefix.size()) == 0;
}