Renamed engine to core.

Added focus to WindowDownloadList.


git-svn-id: svn://rakshasa.no/libtorrent/trunk/rtorrent@249 e378c898-3ddf-0310-93e7-cc216c733640

src/core/curl_stack.cc

@@ -0,0 +1,122 @@
+#include "config.h"
+
+#include <algorithm>
+#include <functional>
+#include <curl/multi.h>
+#include <torrent/exceptions.h>
+
+#include "curl_get.h"
+#include "curl_stack.h"
+
+namespace core {
+
+template <typename Type, typename Ftor>
+struct _equal {
+  _equal(Type t, Ftor f) : m_t(t), m_f(f) {}
+
+  template <typename Arg>
+  bool operator () (Arg& a) {
+    return m_t == m_f(a);
+  }
+
+  Type m_t;
+  Ftor m_f;
+};
+
+template <typename Type, typename Ftor>
+_equal<Type, Ftor> equal(Type t, Ftor f) {
+  return _equal<Type, Ftor>(t, f);
+}
+
+CurlStack::CurlStack() :
+  m_handle((void*)curl_multi_init()),
+  m_size(0) {
+}
+
+CurlStack::~CurlStack() {
+  while (!m_getList.empty())
+    m_getList.front()->close();
+
+  curl_multi_cleanup((CURLM*)m_handle);
+}
+
+void
+CurlStack::perform() {
+  int s;
+  CURLMcode code;
+
+  do {
+    code = curl_multi_perform((CURLM*)m_handle, &s);
+
+    if (code > 0)
+      throw torrent::local_error("Error calling curl_multi_perform");
+
+    if (s != m_size) {
+      // Done with some handles.
+      int t;
+
+      do {
+	CURLMsg* msg = curl_multi_info_read((CURLM*)m_handle, &t);
+
+	CurlGetList::iterator itr = std::find_if(m_getList.begin(), m_getList.end(),
+						 equal(msg->easy_handle, std::mem_fun(&CurlGet::handle)));
+
+// 						 eq(call_member(&CurlGet::handle),
+// 						    value(msg->easy_handle)));
+
+	if (itr == m_getList.end())
+	  throw torrent::client_error("Could not find CurlGet with the right easy_handle");
+	
+	(*itr)->perform(msg);
+      } while (t);
+    }
+
+  } while (code == CURLM_CALL_MULTI_PERFORM);
+}
+
+void
+CurlStack::fdset(fd_set* readfds, fd_set* writefds, fd_set* exceptfds, int* maxFd) {
+  int f;
+
+  if (curl_multi_fdset((CURLM*)m_handle, readfds, writefds, exceptfds, &f) > 0)
+    throw torrent::local_error("Error calling curl_multi_fdset");
+
+  *maxFd = std::max(f, *maxFd);
+}
+
+void
+CurlStack::add_get(CurlGet* get) {
+  CURLMcode code;
+
+  if ((code = curl_multi_add_handle((CURLM*)m_handle, get->handle())) > 0)
+    throw torrent::local_error("curl_multi_add_handle \"" + std::string(curl_multi_strerror(code)));
+
+  m_size++;
+  m_getList.push_back(get);
+}
+
+void
+CurlStack::remove_get(CurlGet* get) {
+  if (curl_multi_remove_handle((CURLM*)m_handle, get->handle()) > 0)
+    throw torrent::local_error("Error calling curl_multi_remove_handle");
+
+  CurlGetList::iterator itr = std::find(m_getList.begin(), m_getList.end(), get);
+
+  if (itr == m_getList.end())
+    throw torrent::client_error("Could not find CurlGet when calling CurlStack::remove");
+
+  m_size--;
+  m_getList.erase(itr);
+}
+
+void
+CurlStack::global_init() {
+  curl_global_init(CURL_GLOBAL_ALL);
+}
+
+void
+CurlStack::global_cleanup() {
+  curl_global_cleanup();
+}
+
+}