thodg/libgit2/src/fileops.c

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• Hash : ec250c6e
  Author :
  Date : 2008-11-23T22:37:55
  

  Remove config.h and make fileops an internal API
  
  Since it doesn't make sense to make the disk access stuff
  portable *AND* public (that's a job for each application
  imo), we can take a shortcut and just support unixy stuff
  for now and get away with coding most of it as macros.
  
  Since we go with an internal API for starters and only
  provide higher-level API's to the libgit users, we'll be
  ok with this approach.
  
  Signed-off-by: Andreas Ericsson <ae@op5.se>
  Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
  

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• src/fileops.c

• #include "fileops.h"
  
  int gitfo_read(git_file fd, void *buf, size_t cnt)
  {
  	char *b = buf;
  	while (cnt) {
  		ssize_t r = read(fd, b, cnt);
  		if (r < 0) {
  			if (errno == EINTR || errno == EAGAIN)
  				continue;
  			return -1;
  		}
  		if (!r) {
  			errno = EPIPE;
  			return -1;
  		}
  		cnt -= r;
  		b += r;
  	}
  	return GIT_SUCCESS;
  }
  
  int gitfo_write(git_file fd, void *buf, size_t cnt)
  {
  	char *b = buf;
  	while (cnt) {
  		ssize_t r = write(fd, b, cnt);
  		if (r < 0) {
  			if (errno == EINTR || errno == EAGAIN)
  				continue;
  			return -1;
  		}
  		if (!r) {
  			errno = EPIPE;
  			return -1;
  		}
  		cnt -= r;
  		b += r;
  	}
  	return GIT_SUCCESS;
  }
  
  off_t gitfo_size(git_file fd)
  {
  	gitfo_statbuf sb;
  	if (fstat(fd, &sb))
  		return -1;
  	return sb.st_size;
  }
  

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