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Directly filter '.' and '..' in xreaddir

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This commit is contained in:
topjohnwu
2020-04-18 04:20:21 -07:00
parent ed6cdb2eb4
commit dcf07ad8c7
6 changed files with 15 additions and 35 deletions
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10
native/jni/utils/files.cpp
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@@ -45,17 +45,11 @@ int mkdirs(string path, mode_t mode) {
return 0;
}
#define SKIP_DOTS {\
if (entry->d_name == "."sv || entry->d_name == ".."sv) \
continue;\
}
static void post_order_walk(int dirfd, const function<void(int, dirent *)> &&fn) {
auto dir = xopen_dir(dirfd);
if (!dir) return;
for (dirent *entry; (entry = xreaddir(dir.get()));) {
SKIP_DOTS
if (entry->d_type == DT_DIR)
post_order_walk(xopenat(dirfd, entry->d_name, O_RDONLY | O_CLOEXEC), std::move(fn));
fn(dirfd, entry);
@@ -67,7 +61,6 @@ static void pre_order_walk(int dirfd, const function<bool(int, dirent *)> &&fn)
if (!dir) return;
for (dirent *entry; (entry = xreaddir(dir.get()));) {
SKIP_DOTS
if (!fn(dirfd, entry))
continue;
if (entry->d_type == DT_DIR)
@@ -109,7 +102,6 @@ void mv_dir(int src, int dest) {
auto dir = xopen_dir(src);
run_finally f([&]{ close(dest); });
for (dirent *entry; (entry = xreaddir(dir.get()));) {
SKIP_DOTS
switch (entry->d_type) {
case DT_DIR:
if (faccessat(dest, entry->d_name, F_OK, 0) == 0) {
@@ -157,7 +149,6 @@ void clone_dir(int src, int dest) {
auto dir = xopen_dir(src);
run_finally f([&]{ close(dest); });
for (dirent *entry; (entry = xreaddir(dir.get()));) {
SKIP_DOTS
file_attr a;
getattrat(src, entry->d_name, &a);
switch (entry->d_type) {
@@ -197,7 +188,6 @@ void link_dir(int src, int dest) {
auto dir = xopen_dir(src);
run_finally f([&]{ close(dest); });
for (dirent *entry; (entry = xreaddir(dir.get()));) {
SKIP_DOTS
if (entry->d_type == DT_DIR) {
file_attr a;
getattrat(src, entry->d_name, &a);