From 629d2e34508838069db83e1082ce9e7f2c7b8ff8 Mon Sep 17 00:00:00 2001
From: Yang Tse <yangsita@gmail.com>
Date: Fri, 21 Oct 2011 16:26:18 +0200
Subject: multi tests: OOM handling fixes

Additionally, improved error checking and logging.
---
 tests/libtest/lib533.c | 126 +++++++++++++------------------------------------
 1 file changed, 32 insertions(+), 94 deletions(-)

(limited to 'tests/libtest/lib533.c')

diff --git a/tests/libtest/lib533.c b/tests/libtest/lib533.c
index 487e01824..fdc18a1eb 100644
--- a/tests/libtest/lib533.c
+++ b/tests/libtest/lib533.c
@@ -29,81 +29,45 @@
 #include "warnless.h"
 #include "memdebug.h"
 
-#define MAIN_LOOP_HANG_TIMEOUT     90 * 1000
-#define MULTI_PERFORM_HANG_TIMEOUT 60 * 1000
+#define TEST_HANG_TIMEOUT 60 * 1000
 
 int test(char *URL)
 {
   int res = 0;
-  CURL *curl;
+  CURL *curl = NULL;
   int running;
-  char done=FALSE;
   CURLM *m = NULL;
   int current=0;
-  struct timeval ml_start;
-  struct timeval mp_start;
-  char ml_timedout = FALSE;
-  char mp_timedout = FALSE;
-
-  if (curl_global_init(CURL_GLOBAL_ALL) != CURLE_OK) {
-    fprintf(stderr, "curl_global_init() failed\n");
-    return TEST_ERR_MAJOR_BAD;
-  }
 
-  if ((curl = curl_easy_init()) == NULL) {
-    fprintf(stderr, "curl_easy_init() failed\n");
-    curl_global_cleanup();
-    return TEST_ERR_MAJOR_BAD;
-  }
+  start_test_timing();
 
-  test_setopt(curl, CURLOPT_URL, URL);
-  test_setopt(curl, CURLOPT_VERBOSE, 1);
-  test_setopt(curl, CURLOPT_FAILONERROR, 1);
+  global_init(CURL_GLOBAL_ALL);
 
-  if ((m = curl_multi_init()) == NULL) {
-    fprintf(stderr, "curl_multi_init() failed\n");
-    curl_easy_cleanup(curl);
-    curl_global_cleanup();
-    return TEST_ERR_MAJOR_BAD;
-  }
+  easy_init(curl);
 
-  if ((res = (int)curl_multi_add_handle(m, curl)) != CURLM_OK) {
-    fprintf(stderr, "curl_multi_add_handle() failed, "
-            "with code %d\n", res);
-    curl_multi_cleanup(m);
-    curl_easy_cleanup(curl);
-    curl_global_cleanup();
-    return TEST_ERR_MAJOR_BAD;
-  }
+  easy_setopt(curl, CURLOPT_URL, URL);
+  easy_setopt(curl, CURLOPT_VERBOSE, 1L);
+  easy_setopt(curl, CURLOPT_FAILONERROR, 1L);
+
+  multi_init(m);
 
-  ml_timedout = FALSE;
-  ml_start = tutil_tvnow();
+  multi_add_handle(m, curl);
 
   fprintf(stderr, "Start at URL 0\n");
 
-  while (!done) {
-    fd_set rd, wr, exc;
-    int max_fd;
+  for(;;) {
     struct timeval interval;
+    fd_set rd, wr, exc;
+    int maxfd = -99;
 
     interval.tv_sec = 1;
     interval.tv_usec = 0;
 
-    if (tutil_tvdiff(tutil_tvnow(), ml_start) >
-        MAIN_LOOP_HANG_TIMEOUT) {
-      ml_timedout = TRUE;
-      break;
-    }
-    mp_timedout = FALSE;
-    mp_start = tutil_tvnow();
-
-    res = (int)curl_multi_perform(m, &running);
-    if (tutil_tvdiff(tutil_tvnow(), mp_start) >
-        MULTI_PERFORM_HANG_TIMEOUT) {
-      mp_timedout = TRUE;
-      break;
-    }
-    if (running <= 0) {
+    multi_perform(m, &running);
+
+    abort_on_test_timeout();
+
+    if(!running) {
       if(!current++) {
         fprintf(stderr, "Advancing to URL 1\n");
         /* remove the handle we use */
@@ -112,62 +76,36 @@ int test(char *URL)
         /* make us re-use the same handle all the time, and try resetting
            the handle first too */
         curl_easy_reset(curl);
-        test_setopt(curl, CURLOPT_URL, libtest_arg2);
-        test_setopt(curl, CURLOPT_VERBOSE, 1);
-        test_setopt(curl, CURLOPT_FAILONERROR, 1);
+        easy_setopt(curl, CURLOPT_URL, libtest_arg2);
+        easy_setopt(curl, CURLOPT_VERBOSE, 1L);
+        easy_setopt(curl, CURLOPT_FAILONERROR, 1L);
 
         /* re-add it */
-        res = (int)curl_multi_add_handle(m, curl);
-        if(res) {
-          fprintf(stderr, "add handle failed: %d.\n", res);
-          res = 243;
-          break;
-        }
-      }
-      else {
-        done = TRUE; /* bail out */
-        break;
+        multi_add_handle(m, curl);
       }
-    }
-
-    if (res != CURLM_OK) {
-      fprintf(stderr, "not okay???\n");
-      break;
+      else
+        break; /* done */
     }
 
     FD_ZERO(&rd);
     FD_ZERO(&wr);
     FD_ZERO(&exc);
-    max_fd = 0;
 
-    if (curl_multi_fdset(m, &rd, &wr, &exc, &max_fd) != CURLM_OK) {
-      fprintf(stderr, "unexpected failured of fdset.\n");
-      res = 189;
-      break;
-    }
+    multi_fdset(m, &rd, &wr, &exc, &maxfd);
 
-    if (select_test(max_fd+1, &rd, &wr, &exc, &interval) == -1) {
-      fprintf(stderr, "bad select??\n");
-      res = 195;
-      break;
-    }
+    /* At this point, maxfd is guaranteed to be greater or equal than -1. */
 
-    res = CURLM_CALL_MULTI_PERFORM;
-  }
+    select_test(maxfd+1, &rd, &wr, &exc, &interval);
 
-  if (ml_timedout || mp_timedout) {
-    if (ml_timedout) fprintf(stderr, "ml_timedout\n");
-    if (mp_timedout) fprintf(stderr, "mp_timedout\n");
-    fprintf(stderr, "ABORTING TEST, since it seems "
-            "that it would have run forever.\n");
-    res = TEST_ERR_RUNS_FOREVER;
+    abort_on_test_timeout();
   }
 
 test_cleanup:
 
+  /* undocumented cleanup sequence - type UB */
+
   curl_easy_cleanup(curl);
-  if(m)
-    curl_multi_cleanup(m);
+  curl_multi_cleanup(m);
   curl_global_cleanup();
 
   return res;
-- 
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