mirror of
https://git.proxmox.com/git/libgit2
synced 2025-05-10 19:49:11 +00:00
87c181970d
While often similar, these are not the same on Windows. We want to use the page size on Windows for the pools, but for mmap we need to use the allocation granularity as the alignment. On the other platforms these values remain the same.
162 lines
3.6 KiB
C
162 lines
3.6 KiB
C
/*
|
|
* Copyright (C) the libgit2 contributors. All rights reserved.
|
|
*
|
|
* This file is part of libgit2, distributed under the GNU GPL v2 with
|
|
* a Linking Exception. For full terms see the included COPYING file.
|
|
*/
|
|
#ifndef INCLUDE_posix_h__
|
|
#define INCLUDE_posix_h__
|
|
|
|
#include "common.h"
|
|
#include <fcntl.h>
|
|
#include <time.h>
|
|
#include "fnmatch.h"
|
|
|
|
/* stat: file mode type testing macros */
|
|
#ifndef S_IFGITLINK
|
|
#define S_IFGITLINK 0160000
|
|
#define S_ISGITLINK(m) (((m) & S_IFMT) == S_IFGITLINK)
|
|
#endif
|
|
|
|
#ifndef S_IFLNK
|
|
#define S_IFLNK 0120000
|
|
#undef _S_IFLNK
|
|
#define _S_IFLNK S_IFLNK
|
|
#endif
|
|
|
|
#ifndef S_IXUSR
|
|
#define S_IXUSR 00100
|
|
#endif
|
|
|
|
#ifndef S_ISLNK
|
|
#define S_ISLNK(m) (((m) & _S_IFMT) == _S_IFLNK)
|
|
#endif
|
|
|
|
#ifndef S_ISDIR
|
|
#define S_ISDIR(m) (((m) & _S_IFMT) == _S_IFDIR)
|
|
#endif
|
|
|
|
#ifndef S_ISREG
|
|
#define S_ISREG(m) (((m) & _S_IFMT) == _S_IFREG)
|
|
#endif
|
|
|
|
#ifndef S_ISFIFO
|
|
#define S_ISFIFO(m) (((m) & _S_IFMT) == _S_IFIFO)
|
|
#endif
|
|
|
|
/* if S_ISGID is not defined, then don't try to set it */
|
|
#ifndef S_ISGID
|
|
#define S_ISGID 0
|
|
#endif
|
|
|
|
#ifndef O_BINARY
|
|
#define O_BINARY 0
|
|
#endif
|
|
#ifndef O_CLOEXEC
|
|
#define O_CLOEXEC 0
|
|
#endif
|
|
|
|
/* access() mode parameter #defines */
|
|
#ifndef F_OK
|
|
#define F_OK 0 /* existence check */
|
|
#endif
|
|
#ifndef W_OK
|
|
#define W_OK 2 /* write mode check */
|
|
#endif
|
|
#ifndef R_OK
|
|
#define R_OK 4 /* read mode check */
|
|
#endif
|
|
|
|
/* Determine whether an errno value indicates that a read or write failed
|
|
* because the descriptor is blocked.
|
|
*/
|
|
#if defined(EWOULDBLOCK)
|
|
#define GIT_ISBLOCKED(e) ((e) == EAGAIN || (e) == EWOULDBLOCK)
|
|
#else
|
|
#define GIT_ISBLOCKED(e) ((e) == EAGAIN)
|
|
#endif
|
|
|
|
/* define some standard errnos that the runtime may be missing. for example,
|
|
* mingw lacks EAFNOSUPPORT. */
|
|
#ifndef EAFNOSUPPORT
|
|
#define EAFNOSUPPORT (INT_MAX-1)
|
|
#endif
|
|
|
|
typedef int git_file;
|
|
|
|
/**
|
|
* Standard POSIX Methods
|
|
*
|
|
* All the methods starting with the `p_` prefix are
|
|
* direct ports of the standard POSIX methods.
|
|
*
|
|
* Some of the methods are slightly wrapped to provide
|
|
* saner defaults. Some of these methods are emulated
|
|
* in Windows platforms.
|
|
*
|
|
* Use your manpages to check the docs on these.
|
|
*/
|
|
|
|
extern ssize_t p_read(git_file fd, void *buf, size_t cnt);
|
|
extern int p_write(git_file fd, const void *buf, size_t cnt);
|
|
|
|
#define p_close(fd) close(fd)
|
|
#define p_umask(m) umask(m)
|
|
|
|
extern int p_open(const char *path, int flags, ...);
|
|
extern int p_creat(const char *path, mode_t mode);
|
|
extern int p_getcwd(char *buffer_out, size_t size);
|
|
extern int p_rename(const char *from, const char *to);
|
|
|
|
extern int git__page_size(size_t *page_size);
|
|
extern int git__mmap_alignment(size_t *page_size);
|
|
|
|
/**
|
|
* Platform-dependent methods
|
|
*/
|
|
#ifdef GIT_WIN32
|
|
# include "win32/posix.h"
|
|
#else
|
|
# include "unix/posix.h"
|
|
#endif
|
|
|
|
#include "strnlen.h"
|
|
|
|
#ifdef NO_READDIR_R
|
|
GIT_INLINE(int) p_readdir_r(DIR *dirp, struct dirent *entry, struct dirent **result)
|
|
{
|
|
GIT_UNUSED(entry);
|
|
*result = readdir(dirp);
|
|
return 0;
|
|
}
|
|
#else /* NO_READDIR_R */
|
|
# define p_readdir_r(d,e,r) readdir_r(d,e,r)
|
|
#endif
|
|
|
|
#ifdef NO_ADDRINFO
|
|
# include <netdb.h>
|
|
struct addrinfo {
|
|
struct hostent *ai_hostent;
|
|
struct servent *ai_servent;
|
|
struct sockaddr_in ai_addr_in;
|
|
struct sockaddr *ai_addr;
|
|
size_t ai_addrlen;
|
|
int ai_family;
|
|
int ai_socktype;
|
|
int ai_protocol;
|
|
long ai_port;
|
|
struct addrinfo *ai_next;
|
|
};
|
|
|
|
extern int p_getaddrinfo(const char *host, const char *port,
|
|
struct addrinfo *hints, struct addrinfo **info);
|
|
extern void p_freeaddrinfo(struct addrinfo *info);
|
|
extern const char *p_gai_strerror(int ret);
|
|
#else
|
|
# define p_getaddrinfo(a, b, c, d) getaddrinfo(a, b, c, d)
|
|
# define p_freeaddrinfo(a) freeaddrinfo(a)
|
|
# define p_gai_strerror(c) gai_strerror(c)
|
|
#endif /* NO_ADDRINFO */
|
|
|
|
#endif
|