In isolationtester, retry after EINTR return from select(2).

tglsfdc · tglsfdc · commit 9d695fc7db91 · 2013-04-06T22:28:53.000-04:00
Per report from Jaime Casanova.  Very curious that no one else has seen
this failure ... but the code is clearly wrong as-is.
diff --git a/src/test/isolation/isolationtester.c b/src/test/isolation/isolationtester.c
@@ -709,6 +709,8 @@ try_complete_step(Step * step, int flags)
 		ret = select(sock + 1, &read_set, NULL, NULL, &timeout);
 		if (ret < 0)			/* error in select() */
 		{
+			if (errno == EINTR)
+				continue;
 			fprintf(stderr, "select failed: %s\n", strerror(errno));
 			exit_nicely();
 		}

Original file line number	Diff line number	Diff line change
`@@ -709,6 +709,8 @@ try_complete_step(Step * step, int flags)`
`709`	`709`	`ret = select(sock + 1, &read_set, NULL, NULL, &timeout);`
`710`	`710`	`if (ret < 0) /* error in select() */`
`711`	`711`	`{`
	`712`	`+ if (errno == EINTR)`
	`713`	`+ continue;`
`712`	`714`	`fprintf(stderr, "select failed: %s\n", strerror(errno));`
`713`	`715`	`exit_nicely();`
`714`	`716`	`}`