Add create*Process functions to create process instances.

This allows us to remove friendship of DFProcessEnumerator for Process
subclasses.

library/CMakeLists.txt

@@ -32,6 +32,7 @@ SET(PROJECT_HDRS_INTERNAL
     private/SHMProcess.h
     private/LinuxProcess.h
     private/WindowsProcess.h
+    private/ProcessFactory.h
 )
 
 SET(PROJECT_HDRS

library/DFProcess-SHM.cpp

@@ -23,6 +23,7 @@ distribution.
 */
 #include "Internal.h"
 #include "SHMProcess.h"
+#include "ProcessFactory.h"
 #include "dfhack/VersionInfo.h"
 #include "dfhack/DFError.h"
 #include "shms.h"
@@ -30,6 +31,11 @@ distribution.
 
 using namespace DFHack;
 
+Process* DFHack::createSHMProcess(uint32_t pid, vector <VersionInfo *> & known_versions)
+{
+    return new SHMProcess(pid, known_versions);
+}
+
 SHMProcess::SHMProcess(uint32_t PID, vector <VersionInfo *> & known_versions)
 : d(new Private(this))
 {

library/DFProcess-linux-wine.cpp

@@ -23,6 +23,7 @@ distribution.
 */
 #include "Internal.h"
 #include "LinuxProcess.h"
+#include "ProcessFactory.h"
 #include "dfhack/VersionInfo.h"
 #include "dfhack/DFError.h"
 #include <errno.h>
@@ -30,6 +31,31 @@ distribution.
 #include <stdio.h>
 using namespace DFHack;
 
+namespace {
+    class WineProcess : public LinuxProcessBase
+    {
+        private:
+            uint32_t STLSTR_buf_off;
+            uint32_t STLSTR_size_off;
+            uint32_t STLSTR_cap_off;
+        public:
+            WineProcess(uint32_t pid, std::vector <VersionInfo *> & known_versions);
+
+            const std::string readSTLString (uint32_t offset);
+            size_t readSTLString (uint32_t offset, char * buffer, size_t bufcapacity);
+            void writeSTLString(const uint32_t address, const std::string writeString){};
+            // get class name of an object with rtti/type info
+            std::string readClassName(uint32_t vptr);
+        private:
+            bool validate(char * exe_file,uint32_t pid, char * memFile, vector <VersionInfo *> & known_versions);
+    };
+}
+
+Process* DFHack::createWineProcess(uint32_t pid, vector <VersionInfo *> & known_versions)
+{
+    return new WineProcess(pid, known_versions);
+}
+
 WineProcess::WineProcess(uint32_t pid, vector <VersionInfo *> & known_versions) : LinuxProcessBase(pid)
 {
     char dir_name [256];

library/DFProcess-linux.cpp

@@ -23,12 +23,34 @@ distribution.
 */
 #include "Internal.h"
 #include "LinuxProcess.h"
+#include "ProcessFactory.h"
 #include "dfhack/VersionInfo.h"
 #include "dfhack/DFError.h"
 #include <errno.h>
 #include <sys/ptrace.h>
 using namespace DFHack;
 
+namespace {
+    class NormalProcess : public LinuxProcessBase
+    {
+        public:
+            NormalProcess(uint32_t pid, std::vector <VersionInfo *> & known_versions);
+
+            const std::string readSTLString (uint32_t offset);
+            size_t readSTLString (uint32_t offset, char * buffer, size_t bufcapacity);
+            void writeSTLString(const uint32_t address, const std::string writeString){};
+            // get class name of an object with rtti/type info
+            std::string readClassName(uint32_t vptr);
+        private:
+            bool validate(char * exe_file,uint32_t pid, char * memFile, vector <VersionInfo *> & known_versions);
+    };
+}
+
+Process* DFHack::createNormalProcess(uint32_t pid, vector <VersionInfo *> & known_versions)
+{
+    return new NormalProcess(pid, known_versions);
+}
+
 NormalProcess::NormalProcess(uint32_t pid, vector <VersionInfo *> & known_versions) : LinuxProcessBase(pid)
 {
     char dir_name [256];

library/DFProcess-windows.cpp

@@ -23,11 +23,17 @@ distribution.
 */
 #include "Internal.h"
 #include "WindowsProcess.h"
+#include "ProcessFactory.h"
 #include "dfhack/VersionInfo.h"
 #include "dfhack/DFError.h"
 #include <string.h>
 using namespace DFHack;
 
+Process* DFHack::createNormalProcess(uint32_t pid, vector <VersionInfo *> & known_versions)
+{
+    return new NormalProcess(pid, known_versions);
+}
+
 class NormalProcess::Private
 {
     public:

library/DFProcessEnumerator.cpp

@@ -23,9 +23,7 @@ distribution.
 */
 
 #include "Internal.h"
-#include "SHMProcess.h"
+#include "ProcessFactory.h"
-#include "LinuxProcess.h"
-#include "WindowsProcess.h"
 
 #include "dfhack/VersionInfoFactory.h"
 #include "dfhack/DFProcessEnumerator.h"
@@ -122,19 +120,19 @@ Process * BadProcesses::operator[](uint32_t index)
 Process *ProcessEnumerator::Private::GetProcessObject(ProcessID ID)
 {
 
-    Process *p1 = new SHMProcess(ID.pid,meminfo->versions);
+    Process *p1 = createSHMProcess(ID.pid,meminfo->versions);
     if(p1->isIdentified())
         return p1;
     else
         delete p1;
 
-    Process *p2 = new NormalProcess(ID.pid,meminfo->versions);
+    Process *p2 = createNormalProcess(ID.pid,meminfo->versions);
     if(p2->isIdentified())
         return p2;
     else
         delete p2;
 #ifdef LINUX_BUILD
-    Process *p3 = new WineProcess(ID.pid,meminfo->versions);
+    Process *p3 = createWineProcess(ID.pid,meminfo->versions);
     if(p3->isIdentified())
         return p3;
     else

library/private/LinuxProcess.h

@@ -90,39 +90,6 @@ namespace DFHack
             bool SetAndWait (uint32_t state){return false;};
     };
 
-    class DFHACK_EXPORT NormalProcess : public LinuxProcessBase
-    {
-        friend class ProcessEnumerator;
-        public:
-            NormalProcess(uint32_t pid, std::vector <VersionInfo *> & known_versions);
-
-            const std::string readSTLString (uint32_t offset);
-            size_t readSTLString (uint32_t offset, char * buffer, size_t bufcapacity);
-            void writeSTLString(const uint32_t address, const std::string writeString){};
-            // get class name of an object with rtti/type info
-            std::string readClassName(uint32_t vptr);
-        private:
-            bool validate(char * exe_file,uint32_t pid, char * memFile, vector <VersionInfo *> & known_versions);
-    };
-
-    class DFHACK_EXPORT WineProcess : public LinuxProcessBase
-    {
-        friend class ProcessEnumerator;
-        private:
-            uint32_t STLSTR_buf_off;
-            uint32_t STLSTR_size_off;
-            uint32_t STLSTR_cap_off;
-        public:
-            WineProcess(uint32_t pid, std::vector <VersionInfo *> & known_versions);
-
-            const std::string readSTLString (uint32_t offset);
-            size_t readSTLString (uint32_t offset, char * buffer, size_t bufcapacity);
-            void writeSTLString(const uint32_t address, const std::string writeString){};
-            // get class name of an object with rtti/type info
-            std::string readClassName(uint32_t vptr);
-        private:
-            bool validate(char * exe_file,uint32_t pid, char * memFile, vector <VersionInfo *> & known_versions);
-    };
 }
 
 #endif

library/private/ProcessFactory.h

@@ -0,0 +1,38 @@
+/*
+www.sourceforge.net/projects/dfhack
+Copyright (c) 2009 Petr Mrázek (peterix), Kenneth Ferland (Impaler[WrG]), dorf
+
+This software is provided 'as-is', without any express or implied
+warranty. In no event will the authors be held liable for any
+damages arising from the use of this software.
+
+Permission is granted to anyone to use this software for any
+purpose, including commercial applications, and to alter it and
+redistribute it freely, subject to the following restrictions:
+
+1. The origin of this software must not be misrepresented; you must
+not claim that you wrote the original software. If you use this
+software in a product, an acknowledgment in the product documentation
+would be appreciated but is not required.
+
+2. Altered source versions must be plainly marked as such, and
+must not be misrepresented as being the original software.
+
+3. This notice may not be removed or altered from any source
+distribution.
+*/
+
+#ifndef PROCESS_FACTORY_H_INCLUDED
+#define PROCESS_FACTORY_H_INCLUDED
+
+#include "dfhack/DFProcess.h"
+
+namespace DFHack
+{
+    Process* createNormalProcess(uint32_t pid, std::vector <VersionInfo *> & known_versions);
+    Process* createSHMProcess(uint32_t pid, std::vector <VersionInfo *> & known_versions);
+#ifdef LINUX_BUILD
+    Process* createWineProcess(uint32_t pid, std::vector <VersionInfo *> & known_versions);
+#endif
+}
+#endif

library/private/SHMProcess.h

@@ -31,9 +31,8 @@ namespace DFHack
 {
     class DFHACK_EXPORT SHMProcess : public Process
     {
-        friend class ProcessEnumerator;
-        class Private;
     private:
+        class Private;
         Private * const d;
 
     public:

library/private/WindowsProcess.h

@@ -30,9 +30,8 @@ distribution.
 
 namespace DFHack
 {
-    class DFHACK_EXPORT NormalProcess : public Process
+    class NormalProcess : public Process
     {
-        friend class ProcessEnumerator;
         class Private;
         private:
             Private * const d;