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Move all xwrap to Rust

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topjohnwu
2022-09-15 01:17:05 -07:00
parent 66a7ef5615
commit c6646efe68
18 changed files with 356 additions and 198 deletions
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34
native/src/base/files.cpp
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@@ -9,38 +9,12 @@
using namespace std;
ssize_t fd_path(int fd, char *path, size_t size) {
ssprintf(path, size, "/proc/self/fd/%d", fd);
return xreadlink(path, path, size);
}
int fd_pathat(int dirfd, const char *name, char *path, size_t size) {
if (fd_path(dirfd, path, size) < 0)
if (fd_path(dirfd, byte_slice(path, size)) < 0)
return -1;
auto len = strlen(path);
path[len] = '/';
strlcpy(path + len + 1, name, size - len - 1);
return 0;
}
int mkdirs(const char *path, mode_t mode) {
char buf[4096];
strlcpy(buf, path, sizeof(buf));
errno = 0;
for (char *p = &buf[1]; *p; ++p) {
if (*p == '/') {
*p = '\0';
if (mkdir(buf, mode) == -1) {
if (errno != EEXIST)
return -1;
}
*p = '/';
}
}
if (mkdir(buf, mode) == -1) {
if (errno != EEXIST)
return -1;
}
strscpy(path + len + 1, name, size - len - 1);
return 0;
}
@@ -410,14 +384,14 @@ void parse_mnt(const char *file, const function<bool(mntent*)> &fn) {
void backup_folder(const char *dir, vector<raw_file> &files) {
char path[PATH_MAX];
xrealpath(dir, path);
xcanonical_path(dir, path, sizeof(path));
int len = strlen(path);
pre_order_walk(xopen(dir, O_RDONLY), [&](int dfd, dirent *entry) -> walk_result {
int fd = xopenat(dfd, entry->d_name, O_RDONLY);
if (fd < 0)
return SKIP;
run_finally f([&]{ close(fd); });
if (fd_path(fd, path, sizeof(path)) < 0)
if (fd_path(fd, byte_slice(path, sizeof(path))) < 0)
return SKIP;
raw_file file;
file.path = path + len + 1;