bundles: merged into conncache.c

All the existing Curl_bundle* functions were only ever used from within
the conncache.c file, so I moved them over and made them static (and
removed the Curl_ prefix).

lib/Makefile.inc

@@ -44,7 +44,7 @@ LIB_CFILES = file.c timeval.c base64.c hostip.c progress.c formdata.c   \
   http_negotiate_sspi.c http_proxy.c non-ascii.c asyn-ares.c            \
   asyn-thread.c curl_gssapi.c curl_ntlm.c curl_ntlm_wb.c                \
   curl_ntlm_core.c curl_ntlm_msgs.c curl_sasl.c curl_multibyte.c        \
-  hostcheck.c bundles.c conncache.c pipeline.c dotdot.c x509asn1.c      \
+  hostcheck.c conncache.c pipeline.c dotdot.c x509asn1.c                \
   http2.c curl_sasl_sspi.c smb.c curl_sasl_gssapi.c curl_endian.c       \
   curl_des.c
 
@@ -62,7 +62,7 @@ LIB_HFILES = arpa_telnet.h netrc.h file.h timeval.h hostip.h progress.h \
   rtsp.h curl_threads.h warnless.h curl_hmac.h curl_rtmp.h              \
   curl_gethostname.h gopher.h http_proxy.h non-ascii.h asyn.h           \
   curl_ntlm.h curl_gssapi.h curl_ntlm_wb.h curl_ntlm_core.h             \
-  curl_ntlm_msgs.h curl_sasl.h curl_multibyte.h hostcheck.h bundles.h   \
+  curl_ntlm_msgs.h curl_sasl.h curl_multibyte.h hostcheck.h             \
   conncache.h curl_setup_once.h multihandle.h setup-vms.h pipeline.h    \
   dotdot.h x509asn1.h http2.h sigpipe.h smb.h curl_endian.h curl_des.h  \
   curl_printf.h

lib/conncache.c

@@ -31,18 +31,89 @@
 #include "multiif.h"
 #include "sendf.h"
 #include "rawstr.h"
-#include "bundles.h"
 #include "conncache.h"
 
 #include "curl_memory.h"
 /* The last #include file should be: */
 #include "memdebug.h"
 
+static void conn_llist_dtor(void *user, void *element)
+{
+  struct connectdata *data = element;
+  (void)user;
+
+  data->bundle = NULL;
+}
+
+static CURLcode bundle_create(struct SessionHandle *data,
+                              struct connectbundle **cb_ptr)
+{
+  (void)data;
+  DEBUGASSERT(*cb_ptr == NULL);
+  *cb_ptr = malloc(sizeof(struct connectbundle));
+  if(!*cb_ptr)
+    return CURLE_OUT_OF_MEMORY;
+
+  (*cb_ptr)->num_connections = 0;
+  (*cb_ptr)->server_supports_pipelining = FALSE;
+
+  (*cb_ptr)->conn_list = Curl_llist_alloc((curl_llist_dtor) conn_llist_dtor);
+  if(!(*cb_ptr)->conn_list) {
+    Curl_safefree(*cb_ptr);
+    return CURLE_OUT_OF_MEMORY;
+  }
+  return CURLE_OK;
+}
+
+static void bundle_destroy(struct connectbundle *cb_ptr)
+{
+  if(!cb_ptr)
+    return;
+
+  if(cb_ptr->conn_list) {
+    Curl_llist_destroy(cb_ptr->conn_list, NULL);
+    cb_ptr->conn_list = NULL;
+  }
+  free(cb_ptr);
+}
+
+/* Add a connection to a bundle */
+static CURLcode bundle_add_conn(struct connectbundle *cb_ptr,
+                              struct connectdata *conn)
+{
+  if(!Curl_llist_insert_next(cb_ptr->conn_list, cb_ptr->conn_list->tail, conn))
+    return CURLE_OUT_OF_MEMORY;
+
+  conn->bundle = cb_ptr;
+
+  cb_ptr->num_connections++;
+  return CURLE_OK;
+}
+
+/* Remove a connection from a bundle */
+static int bundle_remove_conn(struct connectbundle *cb_ptr,
+                              struct connectdata *conn)
+{
+  struct curl_llist_element *curr;
+
+  curr = cb_ptr->conn_list->head;
+  while(curr) {
+    if(curr->ptr == conn) {
+      Curl_llist_remove(cb_ptr->conn_list, curr, NULL);
+      cb_ptr->num_connections--;
+      conn->bundle = NULL;
+      return 1; /* we removed a handle */
+    }
+    curr = curr->next;
+  }
+  return 0;
+}
+
 static void free_bundle_hash_entry(void *freethis)
 {
   struct connectbundle *b = (struct connectbundle *) freethis;
 
-  Curl_bundle_destroy(b);
+  bundle_destroy(b);
 }
 
 int Curl_conncache_init(struct conncache *connc, int size)
@@ -57,6 +128,8 @@ void Curl_conncache_destroy(struct conncache *connc)
     Curl_hash_clean(&connc->hash);
 }
 
+/* Look up the bundle with all the connections to the same host this
+   connectdata struct is setup to use. */
 struct connectbundle *Curl_conncache_find_bundle(struct connectdata *conn,
                                                  struct conncache *connc)
 {
@@ -117,18 +190,18 @@ CURLcode Curl_conncache_add_conn(struct conncache *connc,
   if(!bundle) {
     char *hostname = conn->bits.proxy?conn->proxy.name:conn->host.name;
 
-    result = Curl_bundle_create(data, &new_bundle);
+    result = bundle_create(data, &new_bundle);
     if(result)
       return result;
 
     if(!conncache_add_bundle(data->state.conn_cache, hostname, new_bundle)) {
-      Curl_bundle_destroy(new_bundle);
+      bundle_destroy(new_bundle);
       return CURLE_OUT_OF_MEMORY;
     }
     bundle = new_bundle;
   }
 
-  result = Curl_bundle_add_conn(bundle, conn);
+  result = bundle_add_conn(bundle, conn);
   if(result) {
     if(new_bundle)
       conncache_remove_bundle(data->state.conn_cache, new_bundle);
@@ -153,7 +226,7 @@ void Curl_conncache_remove_conn(struct conncache *connc,
   /* The bundle pointer can be NULL, since this function can be called
      due to a failed connection attempt, before being added to a bundle */
   if(bundle) {
-    Curl_bundle_remove_conn(bundle, conn);
+    bundle_remove_conn(bundle, conn);
     if(bundle->num_connections == 0) {
       conncache_remove_bundle(connc, bundle);
     }

lib/conncache.h

@@ -30,6 +30,13 @@ struct conncache {
   struct timeval last_cleanup;
 };
 
+struct connectbundle {
+  bool server_supports_pipelining; /* TRUE if server supports pipelining,
+                                      set after first response */
+  size_t num_connections;       /* Number of connections in the bundle */
+  struct curl_llist *conn_list; /* The connectdata members of the bundle */
+};
+
 int Curl_conncache_init(struct conncache *, int size);
 
 void Curl_conncache_destroy(struct conncache *connc);

lib/http.c

@@ -72,7 +72,7 @@
 #include "http_proxy.h"
 #include "warnless.h"
 #include "non-ascii.h"
-#include "bundles.h"
+#include "conncache.h"
 #include "pipeline.h"
 #include "http2.h"
 #include "connect.h"

lib/multi.c

@@ -39,7 +39,6 @@
 #include "warnless.h"
 #include "speedcheck.h"
 #include "conncache.h"
-#include "bundles.h"
 #include "multihandle.h"
 #include "pipeline.h"
 #include "sigpipe.h"

lib/pipeline.c

@@ -32,7 +32,6 @@
 #include "pipeline.h"
 #include "sendf.h"
 #include "rawstr.h"
-#include "bundles.h"
 
 #include "curl_memory.h"
 /* The last #include file should be: */

lib/url.c

@@ -124,7 +124,6 @@ int curl_win32_idn_to_ascii(const char *in, char **out);
 #include "curl_rtmp.h"
 #include "gopher.h"
 #include "http_proxy.h"
-#include "bundles.h"
 #include "conncache.h"
 #include "multihandle.h"
 #include "pipeline.h"
@@ -3403,20 +3402,6 @@ ConnectionDone(struct SessionHandle *data, struct connectdata *conn)
   return (conn_candidate == conn) ? FALSE : TRUE;
 }
 
-/*
- * The given input connection struct pointer is to be stored in the connection
- * cache. If the cache is already full, least interesting existing connection
- * (if any) gets closed.
- *
- * The given connection should be unique. That must've been checked prior to
- * this call.
- */
-static CURLcode ConnectionStore(struct SessionHandle *data,
-                                struct connectdata *conn)
-{
-  return Curl_conncache_add_conn(data->state.conn_cache, conn);
-}
-
 /* after a TCP connection to the proxy has been verified, this function does
    the next magic step.
 
@@ -5600,7 +5585,7 @@ static CURLcode create_conn(struct SessionHandle *data,
       conn->data = data;
       conn->bits.tcpconnect[FIRSTSOCKET] = TRUE; /* we are "connected */
 
-      ConnectionStore(data, conn);
+      Curl_conncache_add_conn(data->state.conn_cache, conn);
 
       /*
        * Setup whatever necessary for a resumed transfer
@@ -5761,7 +5746,7 @@ static CURLcode create_conn(struct SessionHandle *data,
        * This is a brand new connection, so let's store it in the connection
        * cache of ours!
        */
-      ConnectionStore(data, conn);
+      Curl_conncache_add_conn(data->state.conn_cache, conn);
     }
 
 #if defined(USE_NTLM)