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More optimized APK traversal

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This commit is contained in:
topjohnwu
2019-02-14 00:52:59 -05:00
parent 4eed6794c7
commit d584360de2
3 changed files with 54 additions and 42 deletions
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8
native/jni/utils/file.cpp
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@@ -60,7 +60,7 @@ int mkdirs(const char *pathname, mode_t mode) {
return 0;
}
void in_order_walk(int dirfd, void (*callback)(int, struct dirent*)) {
void post_order_walk(int dirfd, void (*fn)(int, struct dirent *)) {
struct dirent *entry;
int newfd;
DIR *dir = fdopendir(dirfd);
@@ -73,10 +73,10 @@ void in_order_walk(int dirfd, void (*callback)(int, struct dirent*)) {
continue;
if (entry->d_type == DT_DIR) {
newfd = xopenat(dirfd, entry->d_name, O_RDONLY | O_CLOEXEC);
in_order_walk(newfd, callback);
post_order_walk(newfd, fn);
close(newfd);
}
callback(dirfd, entry);
fn(dirfd, entry);
}
}
@@ -93,7 +93,7 @@ void rm_rf(const char *path) {
}
void frm_rf(int dirfd) {
in_order_walk(dirfd, [](auto dirfd, auto entry) -> void {
post_order_walk(dirfd, [](auto dirfd, auto entry) -> void {
unlinkat(dirfd, entry->d_name, entry->d_type == DT_DIR ? AT_REMOVEDIR : 0);
});
}

2
native/jni/utils/include/utils.h
View File

@@ -108,7 +108,7 @@ struct file_attr {
int fd_getpath(int fd, char *path, size_t size);
int fd_getpathat(int dirfd, const char *name, char *path, size_t size);
int mkdirs(const char *pathname, mode_t mode);
void in_order_walk(int dirfd, void (*callback)(int, struct dirent*));
void post_order_walk(int dirfd, void (*fn)(int, struct dirent *));
void rm_rf(const char *path);
void frm_rf(int dirfd);
void mv_f(const char *source, const char *destination);