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Introduce new root overlay system

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This commit is contained in:
topjohnwu
2019-07-16 01:08:28 -07:00
parent d7b691cf59
commit 7ba8202af5
6 changed files with 169 additions and 59 deletions
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12
native/jni/utils/files.h
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@@ -46,6 +46,18 @@ void frm_rf(int dirfd, std::initializer_list<const char *> excl = std::initializ
void clone_dir(int src, int dest, bool overwrite = true);
void parse_mnt(const char *file, const std::function<bool (mntent*)> &fn);
template <typename T>
void full_read(const char *filename, T &buf, size_t &size) {
static_assert(std::is_pointer<T>::value);
full_read(filename, reinterpret_cast<void**>(&buf), &size);
}
template <typename T>
void fd_full_read(int fd, T &buf, size_t &size) {
static_assert(std::is_pointer<T>::value);
fd_full_read(fd, reinterpret_cast<void**>(&buf), &size);
}
template <typename B>
void mmap_ro(const char *filename, B &buf, size_t &sz) {
buf = (B) __mmap(filename, &sz, false);