mirror of
https://git.proxmox.com/git/libgit2
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edbfc52cdd
Introduce a new `git_path_diriter` that can iterate directories efficiently for each platform.
161 lines
3.5 KiB
C
161 lines
3.5 KiB
C
/*
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* Copyright (C) the libgit2 contributors. All rights reserved.
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*
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* This file is part of libgit2, distributed under the GNU GPL v2 with
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* a Linking Exception. For full terms see the included COPYING file.
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*/
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#ifndef INCLUDE_posix_h__
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#define INCLUDE_posix_h__
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#include "common.h"
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#include <fcntl.h>
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#include <time.h>
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#include "fnmatch.h"
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/* stat: file mode type testing macros */
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#ifndef S_IFGITLINK
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#define S_IFGITLINK 0160000
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#define S_ISGITLINK(m) (((m) & S_IFMT) == S_IFGITLINK)
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#endif
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#ifndef S_IFLNK
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#define S_IFLNK 0120000
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#undef _S_IFLNK
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#define _S_IFLNK S_IFLNK
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#endif
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#ifndef S_IXUSR
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#define S_IXUSR 00100
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#endif
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#ifndef S_ISLNK
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#define S_ISLNK(m) (((m) & _S_IFMT) == _S_IFLNK)
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#endif
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#ifndef S_ISDIR
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#define S_ISDIR(m) (((m) & _S_IFMT) == _S_IFDIR)
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#endif
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#ifndef S_ISREG
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#define S_ISREG(m) (((m) & _S_IFMT) == _S_IFREG)
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#endif
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#ifndef S_ISFIFO
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#define S_ISFIFO(m) (((m) & _S_IFMT) == _S_IFIFO)
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#endif
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/* if S_ISGID is not defined, then don't try to set it */
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#ifndef S_ISGID
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#define S_ISGID 0
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#endif
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#ifndef O_BINARY
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#define O_BINARY 0
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#endif
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#ifndef O_CLOEXEC
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#define O_CLOEXEC 0
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#endif
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/* access() mode parameter #defines */
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#ifndef F_OK
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#define F_OK 0 /* existence check */
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#endif
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#ifndef W_OK
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#define W_OK 2 /* write mode check */
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#endif
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#ifndef R_OK
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#define R_OK 4 /* read mode check */
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#endif
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/* Determine whether an errno value indicates that a read or write failed
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* because the descriptor is blocked.
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*/
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#if defined(EWOULDBLOCK)
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#define GIT_ISBLOCKED(e) ((e) == EAGAIN || (e) == EWOULDBLOCK)
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#else
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#define GIT_ISBLOCKED(e) ((e) == EAGAIN)
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#endif
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/* define some standard errnos that the runtime may be missing. for example,
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* mingw lacks EAFNOSUPPORT. */
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#ifndef EAFNOSUPPORT
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#define EAFNOSUPPORT (INT_MAX-1)
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#endif
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typedef int git_file;
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/**
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* Standard POSIX Methods
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*
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* All the methods starting with the `p_` prefix are
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* direct ports of the standard POSIX methods.
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*
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* Some of the methods are slightly wrapped to provide
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* saner defaults. Some of these methods are emulated
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* in Windows platforms.
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*
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* Use your manpages to check the docs on these.
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*/
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extern ssize_t p_read(git_file fd, void *buf, size_t cnt);
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extern int p_write(git_file fd, const void *buf, size_t cnt);
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#define p_close(fd) close(fd)
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#define p_umask(m) umask(m)
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extern int p_open(const char *path, int flags, ...);
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extern int p_creat(const char *path, mode_t mode);
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extern int p_getcwd(char *buffer_out, size_t size);
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extern int p_rename(const char *from, const char *to);
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extern int git__page_size(size_t *page_size);
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/**
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* Platform-dependent methods
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*/
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#ifdef GIT_WIN32
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# include "win32/posix.h"
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#else
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# include "unix/posix.h"
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#endif
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#include "strnlen.h"
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#ifdef NO_READDIR_R
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GIT_INLINE(int) p_readdir_r(DIR *dirp, struct dirent *entry, struct dirent **result)
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{
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GIT_UNUSED(entry);
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*result = readdir(dirp);
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return 0;
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}
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#else /* NO_READDIR_R */
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# define p_readdir_r(d,e,r) readdir_r(d,e,r)
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#endif
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#ifdef NO_ADDRINFO
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# include <netdb.h>
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struct addrinfo {
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struct hostent *ai_hostent;
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struct servent *ai_servent;
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struct sockaddr_in ai_addr_in;
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struct sockaddr *ai_addr;
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size_t ai_addrlen;
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int ai_family;
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int ai_socktype;
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int ai_protocol;
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long ai_port;
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struct addrinfo *ai_next;
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};
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extern int p_getaddrinfo(const char *host, const char *port,
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struct addrinfo *hints, struct addrinfo **info);
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extern void p_freeaddrinfo(struct addrinfo *info);
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extern const char *p_gai_strerror(int ret);
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#else
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# define p_getaddrinfo(a, b, c, d) getaddrinfo(a, b, c, d)
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# define p_freeaddrinfo(a) freeaddrinfo(a)
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# define p_gai_strerror(c) gai_strerror(c)
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#endif /* NO_ADDRINFO */
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#endif
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