thodg/libgit2/src/os/unix.c

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• Hash : 16a67770
  Author :
  Date : 2008-11-01T16:53:06
  

  Create a micro abstraction around the POSIX file APIs This way we can start to write IO code to read and write files in the Git object database, but provide a hook to inject native Win32 APIs instead so libgit2 can be ported to run natively on that platform. Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

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• src/os/unix.c

• /*
   * This file is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License, version 2,
   * as published by the Free Software Foundation.
   *
   * In addition to the permissions in the GNU General Public License,
   * the authors give you unlimited permission to link the compiled
   * version of this file into combinations with other programs,
   * and to distribute those combinations without any restriction
   * coming from the use of this file.  (The General Public License
   * restrictions do apply in other respects; for example, they cover
   * modification of the file, and distribution when not linked into
   * a combined executable.)
   *
   * This file is distributed in the hope that it will be useful, but
   * WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program; see the file COPYING.  If not, write to
   * the Free Software Foundation, 51 Franklin Street, Fifth Floor,
   * Boston, MA 02110-1301, USA.
   */
  
  #include <errno.h>
  #include "git/common.h"
  
  ssize_t git_fread(git_file fd, void *buf, size_t cnt)
  {
  	for (;;) {
  		ssize_t r = read(fd, buf, cnt);
  		if (r < 0 && (errno == EINTR || errno == EAGAIN))
  			continue;
  		return r;
  	}
  }
  
  ssize_t git_fwrite(git_file fd, void *buf, size_t cnt)
  {
  	for (;;) {
  		ssize_t r = write(fd, buf, cnt);
  		if (r < 0 && (errno == EINTR || errno == EAGAIN))
  			continue;
  		return r;
  	}
  }
  

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