add DLL import/export macro (ros-perception#118)

* windows bringup

* rename dll visibility macros (#5)

* remove extra empty line (#6)

camera_info_manager/include/camera_info_manager/camera_info_manager.h

@@ -43,6 +43,20 @@
 #include <sensor_msgs/CameraInfo.h>
 #include <sensor_msgs/SetCameraInfo.h>
 
+#include <ros/macros.h>
+
+// Import/export for windows dll's and visibility for gcc shared libraries.
+
+#ifdef ROS_BUILD_SHARED_LIBS // ros is being built around shared libraries
+  #ifdef camera_info_manager_EXPORTS // we are building a shared lib/dll
+    #define CAMERA_INFO_MANAGER_DECL ROS_HELPER_EXPORT
+  #else // we are using shared lib/dll
+    #define CAMERA_INFO_MANAGER_DECL ROS_HELPER_IMPORT
+  #endif
+#else // ros is being built around static libraries
+  #define CAMERA_INFO_MANAGER_DECL
+#endif
+
 /** @file
 
     @brief CameraInfo Manager interface
@@ -171,7 +185,7 @@ namespace camera_info_manager
 
 */
 
-class CameraInfoManager
+class CAMERA_INFO_MANAGER_DECL CameraInfoManager
 {
  public:
 

image_transport/include/image_transport/camera_common.h

@@ -36,6 +36,7 @@
 #define IMAGE_TRANSPORT_CAMERA_COMMON_H
 
 #include <string>
+#include "exports.h"
 
 namespace image_transport {
 
@@ -45,7 +46,7 @@ namespace image_transport {
  * \note This function assumes that the name is completely resolved. If the \c 
  * base_topic is remapped the resulting camera info topic will be incorrect. 
  */
-std::string getCameraInfoTopic(const std::string& base_topic);
+IMAGE_TRANSPORT_DECL std::string getCameraInfoTopic(const std::string& base_topic);
 
 } //namespace image_transport
 

image_transport/include/image_transport/camera_publisher.h

@@ -39,6 +39,7 @@
 #include <sensor_msgs/Image.h>
 #include <sensor_msgs/CameraInfo.h>
 #include "image_transport/single_subscriber_publisher.h"
+#include "exports.h"
 
 namespace image_transport {
 
@@ -59,7 +60,7 @@ class ImageTransport;
  * associated with that handle will stop being called. Once all CameraPublisher for a
  * given base topic go out of scope the topic (and all subtopics) will be unadvertised.
  */
-class CameraPublisher
+class IMAGE_TRANSPORT_DECL CameraPublisher
 {
 public:
   CameraPublisher() {}

image_transport/include/image_transport/camera_subscriber.h

@@ -39,6 +39,7 @@
 #include <sensor_msgs/CameraInfo.h>
 #include <sensor_msgs/Image.h>
 #include "image_transport/transport_hints.h"
+#include "exports.h"
 
 namespace image_transport {
 
@@ -59,7 +60,7 @@ void callback(const sensor_msgs::ImageConstPtr&, const sensor_msgs::CameraInfoCo
  * associated with that handle will stop being called. Once all CameraSubscriber for a given
  * topic go out of scope the topic will be unsubscribed.
  */
-class CameraSubscriber
+class IMAGE_TRANSPORT_DECL CameraSubscriber
 {
 public:
   typedef boost::function<void(const sensor_msgs::ImageConstPtr&,

image_transport/include/image_transport/exports.h

@@ -0,0 +1,18 @@
+#ifndef IMAGE_TRANSPORT_EXPORTS_H
+#define IMAGE_TRANSPORT_EXPORTS_H
+
+#include <ros/macros.h>
+
+// Import/export for windows dll's and visibility for gcc shared libraries.
+
+#ifdef ROS_BUILD_SHARED_LIBS // ros is being built around shared libraries
+  #ifdef image_transport_EXPORTS // we are building a shared lib/dll
+    #define IMAGE_TRANSPORT_DECL ROS_HELPER_EXPORT
+  #else // we are using shared lib/dll
+    #define IMAGE_TRANSPORT_DECL ROS_HELPER_IMPORT
+  #endif
+#else // ros is being built around static libraries
+  #define IMAGE_TRANSPORT_DECL
+#endif
+
+#endif // IMAGE_TRANSPORT_EXPORTS_H

image_transport/include/image_transport/image_transport.h

@@ -39,6 +39,7 @@
 #include "image_transport/subscriber.h"
 #include "image_transport/camera_publisher.h"
 #include "image_transport/camera_subscriber.h"
+#include "exports.h"
 
 namespace image_transport {
 
@@ -48,7 +49,7 @@ namespace image_transport {
  * ImageTransport is analogous to ros::NodeHandle in that it contains advertise() and
  * subscribe() functions for creating advertisements and subscriptions of image topics.
  */
-class ImageTransport
+class IMAGE_TRANSPORT_DECL ImageTransport
 {
 public:
   explicit ImageTransport(const ros::NodeHandle& nh);

image_transport/include/image_transport/publisher.h

@@ -40,6 +40,7 @@
 #include "image_transport/single_subscriber_publisher.h"
 #include "image_transport/exception.h"
 #include "image_transport/loader_fwds.h"
+#include "exports.h"
 
 namespace image_transport {
 
@@ -60,7 +61,7 @@ namespace image_transport {
  * associated with that handle will stop being called. Once all Publisher for a
  * given base topic go out of scope the topic (and all subtopics) will be unadvertised.
  */
-class Publisher
+class IMAGE_TRANSPORT_DECL Publisher
 {
 public:
   Publisher() {}

image_transport/include/image_transport/single_subscriber_publisher.h

@@ -38,14 +38,15 @@
 #include <boost/noncopyable.hpp>
 #include <boost/function.hpp>
 #include <sensor_msgs/Image.h>
+#include "exports.h"
 
 namespace image_transport {
 
 /**
  * \brief Allows publication of an image to a single subscriber. Only available inside
  * subscriber connection callbacks.
  */
-class SingleSubscriberPublisher : boost::noncopyable
+class IMAGE_TRANSPORT_DECL SingleSubscriberPublisher : boost::noncopyable
 {
 public:
   typedef boost::function<uint32_t()> GetNumSubscribersFn;

image_transport/include/image_transport/subscriber.h

@@ -40,6 +40,7 @@
 #include "image_transport/transport_hints.h"
 #include "image_transport/exception.h"
 #include "image_transport/loader_fwds.h"
+#include "exports.h"
 
 namespace image_transport {
 
@@ -58,7 +59,7 @@ namespace image_transport {
  * associated with that handle will stop being called. Once all Subscriber for a given
  * topic go out of scope the topic will be unsubscribed.
  */
-class Subscriber
+class IMAGE_TRANSPORT_DECL Subscriber
 {
 public:
   Subscriber() {}

polled_camera/include/polled_camera/publication_server.h

@@ -40,6 +40,20 @@
 #include <sensor_msgs/CameraInfo.h>
 #include "polled_camera/GetPolledImage.h"
 
+#include <ros/macros.h>
+
+// Import/export for windows dll's and visibility for gcc shared libraries.
+
+#ifdef ROS_BUILD_SHARED_LIBS // ros is being built around shared libraries
+  #ifdef polled_camera_EXPORTS // we are building a shared lib/dll
+    #define POLLED_CAMERA_DECL ROS_HELPER_EXPORT
+  #else // we are using shared lib/dll
+    #define POLLED_CAMERA_DECL ROS_HELPER_IMPORT
+  #endif
+#else // ros is being built around static libraries
+  #define POLLED_CAMERA_DECL
+#endif
+
 namespace polled_camera {
 
 /**
@@ -63,7 +77,7 @@ void callback(polled_camera::GetPolledImage::Request& req,
 }
 \endcode
  */
-class PublicationServer
+class POLLED_CAMERA_DECL PublicationServer
 {
 public:
   typedef boost::function<void (polled_camera::GetPolledImage::Request&,