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Another update to ecore_file_mv to make it work even better. Now even writes to external devices will be atomic if possible. If it's still not possible, the old fallback method of just copying will be done. 

SVN revision: 35787
This commit is contained in:
Nicholas Hughart 2008-09-02 02:44:47 +00:00
parent f8cee23def
commit 4851309c8b
1 changed files with 47 additions and 5 deletions
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52
legacy/ecore/src/lib/ecore_file/ecore_file.c
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@ -295,24 +295,66 @@ ecore_file_cp(const char *src, const char *dst)
EAPI int
ecore_file_mv(const char *src, const char *dst)
{
char buf[PATH_MAX];
int fd;
if (rename(src, dst))
{
// File cannot be moved directly because
// it resides on a different mount point.
if (errno == EXDEV)
{
struct stat st;
// Make sure this is a regular file before
// we do anything fancy.
stat(src, &st);
if (S_ISREG(st.st_mode))
{
ecore_file_cp(src, dst);
chmod(dst, st.st_mode);
ecore_file_unlink(src);
return 1;
// Since we can't directly rename, try to
// copy to temp file in the dst directory
// and then rename.
snprintf(buf, sizeof(buf), "%s/.%s.tmp.XXXXXX",
ecore_file_dir_get(dst),
ecore_file_file_get(dst));
fd = mkstemp(buf);
if(fd < 0)
{
perror("mkstemp");
goto FAIL;
}
close(fd);
// Copy to temp file
if(!ecore_file_cp(src,buf))
goto FAIL;
// Set file permissions of temp file to match src
chmod(buf, st.st_mode);
// Try to atomically move temp file to dst
if (rename(buf, dst))
{
// If we still cannot atomically move
// do a normal copy and hope for the best.
if(!ecore_file_cp(buf, dst))
goto FAIL;
}
// Delete temporary file and src
ecore_file_unlink(buf);
ecore_file_unlink(src);
goto PASS;
}
}
return 0;
goto FAIL;
}
PASS:
return 1;
FAIL:
return 0;
}
/**