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93 lines
2.9 KiB
C++
93 lines
2.9 KiB
C++
#pragma once
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#include <sys/stat.h>
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#include <functional>
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#include <string_view>
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#include <string>
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#include <vector>
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#include <linux/fs.h>
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#include "misc.hpp"
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template <typename T>
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static inline T align_to(T v, int a) {
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static_assert(std::is_integral<T>::value);
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return (v + a - 1) / a * a;
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}
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template <typename T>
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static inline T align_padding(T v, int a) {
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return align_to(v, a) - v;
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}
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struct mmap_data : public byte_data {
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static_assert((sizeof(void *) == 8 && BLKGETSIZE64 == 0x80081272) ||
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(sizeof(void *) == 4 && BLKGETSIZE64 == 0x80041272));
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ALLOW_MOVE_ONLY(mmap_data)
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explicit mmap_data(const char *name, bool rw = false);
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mmap_data(int fd, size_t sz, bool rw = false);
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~mmap_data();
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};
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extern "C" {
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int mkdirs(const char *path, mode_t mode);
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ssize_t canonical_path(const char * __restrict__ path, char * __restrict__ buf, size_t bufsiz);
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bool rm_rf(const char *path);
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bool frm_rf(int dirfd);
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void cp_afc(const char *src, const char *dest);
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void mv_path(const char *src, const char *dest);
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void link_path(const char *src, const char *dest);
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void clone_attr(const char *src, const char *dest);
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void fclone_attr(int src, int dest);
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} // extern "C"
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int fd_pathat(int dirfd, const char *name, char *path, size_t size);
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static inline ssize_t realpath(
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const char * __restrict__ path, char * __restrict__ buf, size_t bufsiz) {
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return canonical_path(path, buf, bufsiz);
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}
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void full_read(int fd, std::string &str);
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void full_read(const char *filename, std::string &str);
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std::string full_read(int fd);
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std::string full_read(const char *filename);
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void write_zero(int fd, size_t size);
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void file_readline(bool trim, FILE *fp, const std::function<bool(std::string_view)> &fn);
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void file_readline(bool trim, const char *file, const std::function<bool(std::string_view)> &fn);
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void file_readline(const char *file, const std::function<bool(std::string_view)> &fn);
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void parse_prop_file(FILE *fp, const std::function<bool(std::string_view, std::string_view)> &fn);
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void parse_prop_file(const char *file,
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const std::function<bool(std::string_view, std::string_view)> &fn);
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std::string resolve_preinit_dir(const char *base_dir);
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using sFILE = std::unique_ptr<FILE, decltype(&fclose)>;
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using sDIR = std::unique_ptr<DIR, decltype(&closedir)>;
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sDIR make_dir(DIR *dp);
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sFILE make_file(FILE *fp);
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static inline sDIR open_dir(const char *path) {
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return make_dir(opendir(path));
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}
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static inline sDIR xopen_dir(const char *path) {
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return make_dir(xopendir(path));
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}
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static inline sDIR xopen_dir(int dirfd) {
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return make_dir(xfdopendir(dirfd));
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}
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static inline sFILE open_file(const char *path, const char *mode) {
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return make_file(fopen(path, mode));
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}
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static inline sFILE xopen_file(const char *path, const char *mode) {
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return make_file(xfopen(path, mode));
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}
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static inline sFILE xopen_file(int fd, const char *mode) {
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return make_file(xfdopen(fd, mode));
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}
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