thodg/libgit2/src/posix.h

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• Hash : 62e562f9
  Author :
  Date : 2014-05-18T07:54:41
  

  Fix compiler warning (git_off_t cast to size_t). Use size_t for page size, instead of long. Check result of sysconf. Use size_t for page offset so no cast to size_t (second arg to p_mmap). Use mod instead div/mult pair, so no cast to size_t is necessary.

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• src/posix.h

• /*
   * 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"
  
  #ifndef S_IFGITLINK
  #define S_IFGITLINK 0160000
  #define S_ISGITLINK(m) (((m) & S_IFMT) == S_IFGITLINK)
  #endif
  
  /* if S_ISGID is not defined, then don't try to set it */
  #ifndef S_ISGID
  #define S_ISGID 0
  #endif
  
  #if !defined(O_BINARY)
  #define O_BINARY 0
  #endif
  #if !defined(O_CLOEXEC)
  #define O_CLOEXEC 0
  #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
  
  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 int 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_fstat(f,b) fstat(f, b)
  #define p_lseek(f,n,w) lseek(f, n, w)
  #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);
  
  #ifndef GIT_WIN32
  
  #define p_stat(p,b) stat(p, b)
  #define p_chdir(p) chdir(p)
  #define p_rmdir(p) rmdir(p)
  #define p_chmod(p,m) chmod(p, m)
  #define p_access(p,m) access(p,m)
  #define p_ftruncate(fd, sz) ftruncate(fd, sz)
  #define p_recv(s,b,l,f) recv(s,b,l,f)
  #define p_send(s,b,l,f) send(s,b,l,f)
  typedef int GIT_SOCKET;
  #define INVALID_SOCKET -1
  
  #define p_localtime_r localtime_r
  #define p_gmtime_r gmtime_r
  
  #else
  
  typedef SOCKET GIT_SOCKET;
  extern struct tm * p_localtime_r (const time_t *timer, struct tm *result);
  extern struct tm * p_gmtime_r (const time_t *timer, struct tm *result);
  
  #endif
  
  /**
   * Platform-dependent methods
   */
  #ifdef GIT_WIN32
  #	include "win32/posix.h"
  #else
  #	include "unix/posix.h"
  #endif
  
  #include "strnlen.h"
  
  #ifdef NO_READDIR_R
  #	include <dirent.h>
  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
  

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