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prefer rb_syserr_fail

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* file.c, io.c, util.c: prefer rb_syserr_fail with saved errno
  over setting errno then call rb_sys_fail, not to be clobbered
  potentially and to reduce thread local errno accesses.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53264 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2015-12-23 08:57:48 +00:00
parent d15f30882a
commit f4166e2dd7
12 changed files with 125 additions and 112 deletions
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8
util.c
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@ -507,9 +507,10 @@ ruby_getcwd(void)
char *buf = xmalloc(size);
while (!getcwd(buf, size)) {
if (errno != ERANGE) {
int e = errno;
if (e != ERANGE) {
xfree(buf);
rb_sys_fail("getcwd");
rb_syserr_fail(e, "getcwd");
}
size *= 2;
buf = xrealloc(buf, size);
@ -527,8 +528,9 @@ ruby_getcwd(void)
char *buf = xmalloc(PATH_MAX+1);
if (!getwd(buf)) {
int e = errno;
xfree(buf);
rb_sys_fail("getwd");
rb_syserr_fail(e, "getwd");
}
#endif
return buf;