Initial checkin of proxy 2 code

[yazproxy-moved-to-github.git] / src / p2_modules.cpp

diff --git a/src/p2_modules.cpp b/src/p2_modules.cpp
new file mode 100644 (file)
index 0000000..6f1778b
--- /dev/null
+++ b/src/p2_modules.cpp
@@ -0,0 +1,77 @@
+
+#include <dlfcn.h>
+
+#include "p2_modules.h"
+
+class P2_ModuleDLEntry {
+public:
+    void *m_dl_handle;
+    P2_ModuleEntry *m_entry;
+    P2_ModuleDLEntry();
+    ~P2_ModuleDLEntry();
+};
+
+P2_ModuleDLEntry::P2_ModuleDLEntry()
+{
+    m_dl_handle = 0;
+    m_entry = 0;
+}
+    
+P2_ModuleDLEntry::~P2_ModuleDLEntry()
+{
+    if (m_dl_handle)
+       dlclose(m_dl_handle);
+}
+    
+P2_ModuleFactory::P2_ModuleFactory()
+{
+}
+
+P2_ModuleFactory::~P2_ModuleFactory()
+{
+}
+
+bool P2_ModuleFactory::add(P2_ModuleEntry *entry)
+{
+    P2_ModuleDLEntry *m = new P2_ModuleDLEntry();
+    m->m_entry = entry;
+    m_modules.push_back(m);
+    return true;
+}
+
+bool P2_ModuleFactory::add(const char *fname)
+{
+    void *dl_handle = dlopen(fname, RTLD_NOW|RTLD_GLOBAL);
+    if (!dl_handle)
+       return false;
+
+    P2_ModuleEntry *entry =
+       reinterpret_cast<P2_ModuleEntry *> 
+       (dlsym(dl_handle, "p2_module_entry"));
+    if (!entry)
+    {
+       dlclose(dl_handle);
+       return false;
+    }
+    P2_ModuleDLEntry *m = new P2_ModuleDLEntry();
+    m->m_dl_handle = dl_handle;
+    m->m_entry = entry;
+    m_modules.push_back(m);
+    return true;
+}
+
+void *P2_ModuleFactory::get_interface(const char *name, int version)
+{
+    std::list<P2_ModuleDLEntry *>::const_iterator it;
+    for (it = m_modules.begin();  it != m_modules.end(); it++)
+    {
+       P2_ModuleDLEntry *ent = *it;
+       if (!strcmp(ent->m_entry->name, name) &&
+           ent->m_entry->version == version)
+       {
+           return ent->m_entry->interface_ptr;
+       }
+    }
+    return 0;
+}
+