From 85fb49b1d108a7fd8a762b685dd0e6386f8e2ae3 Mon Sep 17 00:00:00 2001
From: Stefan Eissing <icing@apache.org>
Date: Tue, 4 Oct 2016 08:55:08 +0000
Subject: [PATCH] mod_http2: replacing module internal hook with own impl as
 the former does not compile on Windows

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1763246 13f79535-47bb-0310-9956-ffa450edef68
---
 modules/http2/h2_bucket_beam.c | 37 ++++++++++++++++++++++++++--------
 modules/http2/h2_bucket_beam.h |  8 +++++---
 modules/http2/h2_conn.c        |  4 ++--
 modules/http2/h2_filter.c      |  2 +-
 modules/http2/h2_h2.c          |  4 ++--
 5 files changed, 39 insertions(+), 16 deletions(-)

diff --git a/modules/http2/h2_bucket_beam.c b/modules/http2/h2_bucket_beam.c
index 7860d26170..4397e19c76 100644
--- a/modules/http2/h2_bucket_beam.c
+++ b/modules/http2/h2_bucket_beam.c
@@ -170,14 +170,35 @@ const apr_bucket_type_t h2_bucket_type_beam = {
 /*******************************************************************************
  * h2_blist, a brigade without allocations
  ******************************************************************************/
+
+static apr_array_header_t *beamers;
  
-APR_HOOK_STRUCT(
-            APR_HOOK_LINK(beam_bucket)
-)
-AP_IMPLEMENT_HOOK_RUN_FIRST(apr_bucket *, beam_bucket,
-                            (h2_bucket_beam *beam, apr_bucket_brigade *dest,
-                             const apr_bucket *src),
-                            (beam, dest, src), NULL)
+void h2_register_bucket_beamer(h2_bucket_beamer *beamer)
+{
+    if (!beamers) {
+        beamers = apr_array_make(apr_hook_global_pool, 10, 
+                                 sizeof(h2_bucket_beamer*));
+    }
+    APR_ARRAY_PUSH(beamers, h2_bucket_beamer*) = beamer;
+}
+
+static apr_bucket *h2_beam_bucket(h2_bucket_beam *beam, 
+                                  apr_bucket_brigade *dest,
+                                  const apr_bucket *src)
+{
+    apr_bucket *b = NULL;
+    int i;
+    if (beamers) {
+        for (i = 0; i < beamers->nelts && b == NULL; ++i) {
+            h2_bucket_beamer *beamer;
+            
+            beamer = APR_ARRAY_IDX(beamers, i, h2_bucket_beamer*);
+            b = beamer(beam, dest, src);
+        }
+    }
+    return b;
+}
+
 
 apr_size_t h2_util_bl_print(char *buffer, apr_size_t bmax, 
                             const char *tag, const char *sep, 
@@ -860,7 +881,7 @@ transfer:
                 ++transferred;
             }
             else {
-                bgreen = ap_run_beam_bucket(beam, bb, bred);
+                bgreen = h2_beam_bucket(beam, bb, bred);
                 while (bgreen && bgreen != APR_BRIGADE_SENTINEL(bb)) {
                     ++transferred;
                     remain -= bgreen->length;
diff --git a/modules/http2/h2_bucket_beam.h b/modules/http2/h2_bucket_beam.h
index db46baacd6..80fa9e127d 100644
--- a/modules/http2/h2_bucket_beam.h
+++ b/modules/http2/h2_bucket_beam.h
@@ -373,8 +373,10 @@ int h2_beam_was_received(h2_bucket_beam *beam);
 
 apr_size_t h2_beam_get_files_beamed(h2_bucket_beam *beam);
 
-AP_DECLARE_HOOK(apr_bucket *, beam_bucket,
-                (h2_bucket_beam *beam, apr_bucket_brigade *dest,
-                 const apr_bucket *src))
+typedef apr_bucket *h2_bucket_beamer(h2_bucket_beam *beam, 
+                                     apr_bucket_brigade *dest,
+                                     const apr_bucket *src);
+
+void h2_register_bucket_beamer(h2_bucket_beamer *beamer);
 
 #endif /* h2_bucket_beam_h */
diff --git a/modules/http2/h2_conn.c b/modules/http2/h2_conn.c
index c2e8e0ef34..675ddeb266 100644
--- a/modules/http2/h2_conn.c
+++ b/modules/http2/h2_conn.c
@@ -290,8 +290,8 @@ conn_rec *h2_slave_create(conn_rec *master, apr_uint32_t slave_id,
      * many streams. 
      */
     l = master->id;
-    if (sizeof(long) >= 8 && l < APR_UINT32_MAX) {
-        c->id = l|(((unsigned long)slave_id) << 32);
+    if (sizeof(unsigned long) >= 8 && l < APR_UINT32_MAX) {
+        c->id = l|((unsigned long)slave_id << 32);
     }
     else {
         c->id = l^(~slave_id);
diff --git a/modules/http2/h2_filter.c b/modules/http2/h2_filter.c
index 6d9cee16f5..a4ef20d7e9 100644
--- a/modules/http2/h2_filter.c
+++ b/modules/http2/h2_filter.c
@@ -238,7 +238,7 @@ apr_status_t h2_bucket_observer_fire(apr_bucket *b, h2_bucket_event event)
 }
 
 const apr_bucket_type_t h2_bucket_type_observer = {
-    "H2LAZY", 5, APR_BUCKET_METADATA,
+    "H2OBS", 5, APR_BUCKET_METADATA,
     bucket_destroy,
     bucket_read,
     apr_bucket_setaside_noop,
diff --git a/modules/http2/h2_h2.c b/modules/http2/h2_h2.c
index 80e1afadfb..39707de4b5 100644
--- a/modules/http2/h2_h2.c
+++ b/modules/http2/h2_h2.c
@@ -574,8 +574,8 @@ void h2_h2_register_hooks(void)
     ap_hook_fixups(h2_h2_late_fixups, NULL, NULL, APR_HOOK_LAST);
 
     /* special bucket type transfer through a h2_bucket_beam */
-    ap_hook_beam_bucket(h2_bucket_observer_beam, NULL, NULL, APR_HOOK_MIDDLE);
-    ap_hook_beam_bucket(h2_bucket_headers_beam, NULL, NULL, APR_HOOK_MIDDLE);
+    h2_register_bucket_beamer(h2_bucket_headers_beam);
+    h2_register_bucket_beamer(h2_bucket_observer_beam);
 }
 
 int h2_h2_process_conn(conn_rec* c)
-- 
2.40.0