[TESTS] add a debug patch to help trigger the stats bug

About: [BUG] Flush buffers also where there are exactly 0 bytes left

I'm also attaching a debug patch that helps to trigger this bug.

Without the fix:
# echo -ne "GET /haproxy?stats;csv;norefresh HTTP/1.0\r\n\r\n"|nc 127.0.0.1
801|wc -c
16384

With the fix:
# echo -ne "GET /haproxy?stats;csv;norefresh HTTP/1.0\r\n\r\n"|nc 127.0.0.1
801|wc -c
33089

Best regards,

                                Krzysztof Oledzki

diff --git a/tests/0000-debug-stats.diff b/tests/0000-debug-stats.diff
new file mode 100644 (file)
index 0000000..7368e04
--- /dev/null
+++ b/tests/0000-debug-stats.diff
@@ -0,0 +1,54 @@
+From: Krzysztof Oledzki <ole@ans.pl>
+Date: Sun, 20 Apr 2008 22:19:09 +0200 (CEST)
+Subject: Re: [PATCH]  Flush buffers also where there are exactly 0 bytes left
+
+I'm also attaching a debug patch that helps to trigger this bug.
+
+Without the fix:
+# echo -ne "GET /haproxy?stats;csv;norefresh HTTP/1.0\r\n\r\n"|nc 127.0.0.1=
+ 801|wc -c
+16384
+
+With the fix:
+# echo -ne "GET /haproxy?stats;csv;norefresh HTTP/1.0\r\n\r\n"|nc 127.0.0.1=
+ 801|wc -c
+33089
+
+Best regards,
+
+diff --git a/src/dumpstats.c b/src/dumpstats.c
+index ddadddd..28bbfce 100644
+--- a/src/dumpstats.c
++++ b/src/dumpstats.c
+@@ -593,6 +593,7 @@ int stats_dump_proxy(struct session *s, struct proxy *px, struct uri_auth *uri)
+ 
+       msg.len = 0;
+       msg.str = trash;
++      int i;
+ 
+       switch (s->data_ctx.stats.px_st) {
+       case DATA_ST_PX_INIT:
+@@ -667,6 +668,13 @@ int stats_dump_proxy(struct session *s, struct proxy *px, struct uri_auth *uri)
+               /* print the frontend */
+               if ((px->cap & PR_CAP_FE) &&
+                   (!(s->data_ctx.stats.flags & STAT_BOUND) || (s->data_ctx.stats.type & (1 << STATS_TYPE_FE)))) {
++
++                      if (1) {
++                              for (i=0; i<16096; i++)
++                                      chunk_printf(&msg, sizeof(trash), "*");
++
++                              chunk_printf(&msg, sizeof(trash), "\n");
++#if 0
+                       if (!(s->data_ctx.stats.flags & STAT_FMT_CSV)) {
+                               chunk_printf(&msg, sizeof(trash),
+                                    /* name, queue */
+@@ -694,6 +702,7 @@ int stats_dump_proxy(struct session *s, struct proxy *px, struct uri_auth *uri)
+                                    px->failed_req,
+                                    px->state == PR_STRUN ? "OPEN" :
+                                    px->state == PR_STIDLE ? "FULL" : "STOP");
++#endif
+                       } else {
+                               chunk_printf(&msg, sizeof(trash),
+                                    /* pxid, name, queue cur, queue max, */
+
+