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https://github.com/fish-shell/fish-shell
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92 lines
2.4 KiB
C++
92 lines
2.4 KiB
C++
// Prototypes for wide character equivalents of various standard unix functions.
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#ifndef FISH_WUTIL_H
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#define FISH_WUTIL_H
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#include <dirent.h>
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#include <stdio.h>
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#include <sys/types.h>
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#include <time.h>
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#include <string>
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#include "common.h"
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FILE *wfopen(const wcstring &path, const char *mode);
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bool set_cloexec(int fd);
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int wopen_cloexec(const wcstring &pathname, int flags, mode_t mode = 0);
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int make_fd_nonblocking(int fd);
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int make_fd_blocking(int fd);
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DIR *wopendir(const wcstring &name);
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int wstat(const wcstring &file_name, struct stat *buf);
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int lwstat(const wcstring &file_name, struct stat *buf);
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int waccess(const wcstring &pathname, int mode);
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int wunlink(const wcstring &pathname);
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void wperror(const wchar_t *s);
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void safe_perror(const char *message);
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const char *safe_strerror(int err);
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const wcstring wgetcwd();
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int wchdir(const wcstring &dir);
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wchar_t *wrealpath(const wcstring &pathname, wchar_t *resolved_path);
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bool wreaddir(DIR *dir, std::wstring &out_name);
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bool wreaddir_resolving(DIR *dir, const std::wstring &dir_path, std::wstring &out_name,
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bool *out_is_dir);
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bool wreaddir_for_dirs(DIR *dir, wcstring *out_name);
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std::wstring wdirname(const std::wstring &path);
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std::wstring wbasename(const std::wstring &path);
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const wcstring &wgettext(const wchar_t *in);
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int wmkdir(const wcstring &dir, int mode);
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int wrename(const wcstring &oldName, const wcstring &newName);
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/// Class for representing a file's inode. We use this to detect and avoid symlink loops, among
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/// other things. While an inode / dev pair is sufficient to distinguish co-existing files, Linux
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/// seems to aggressively re-use inodes, so it cannot determine if a file has been deleted (ABA
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/// problem). Therefore we include richer information.
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struct file_id_t {
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dev_t device;
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ino_t inode;
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uint64_t size;
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time_t change_seconds;
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long change_nanoseconds;
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time_t mod_seconds;
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long mod_nanoseconds;
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bool operator==(const file_id_t &rhs) const;
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bool operator!=(const file_id_t &rhs) const;
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// Used to permit these as keys in std::map.
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bool operator<(const file_id_t &rhs) const;
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static file_id_t file_id_from_stat(const struct stat *buf);
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private:
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int compare_file_id(const file_id_t &rhs) const;
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};
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file_id_t file_id_for_fd(int fd);
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file_id_t file_id_for_path(const wcstring &path);
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extern const file_id_t kInvalidFileID;
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#endif
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