Add a print transport add-on loader/tester.

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8536 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/tests/add-ons/print/Jamfile

@@ -2,3 +2,4 @@ SubDir OBOS_TOP src tests add-ons print ;
 
 SubInclude OBOS_TOP src tests add-ons print pdf ;
 SubInclude OBOS_TOP src tests add-ons print pcl6 ;
+SubInclude OBOS_TOP src tests add-ons print transports ;

src/tests/add-ons/print/transports/Jamfile

@@ -0,0 +1,4 @@
+SubDir OBOS_TOP src tests add-ons print transports ;
+
+SimpleTest print_transport_loader : main.cpp : be ;
+

src/tests/add-ons/print/transports/main.cpp

@@ -0,0 +1,92 @@
+#include <stdio.h>
+
+#include <Application.h>
+#include <Directory.h>
+#include <FindDirectory.h>
+#include <Path.h>
+#include <image.h>
+#include <DataIO.h>
+#include <Message.h>
+
+int main (int argc, char *argv[])
+{
+	image_id addon;
+	char *transport;
+	
+	if (argc < 2) {
+		printf("Usage: %s <transport add-on name>\n", argv[0]);
+		return B_ERROR;
+	}
+
+	new BApplication("application/x-vnd-OBOS-print_transport_tester");
+
+	transport = argv[1];
+
+	printf("Looking for %s transport addon:", transport);
+
+	// try first in user add-ons directory
+	printf("In user add-ons directory...\n");
+
+	BPath path;
+	find_directory(B_USER_ADDONS_DIRECTORY, &path);
+	path.Append("Print/transport");
+	path.Append(transport);
+	
+	addon = load_add_on(path.Path());
+	if (addon < 0) {
+		// on failure try in system add-ons directory
+
+		printf("In system add-ons directory...\n");
+		find_directory(B_BEOS_ADDONS_DIRECTORY, &path);
+		path.Append("Print/transport");
+		path.Append(transport);
+
+		addon = load_add_on(path.Path());
+	}
+
+	if (addon < 0) {
+		// failed to load transport add-on
+		printf("Failed to load %s print transport add-on!\n", transport);
+		return B_ERROR;
+	}
+	
+	printf("Loaded from %s\n", path.Path());
+
+	// get init & exit proc
+	BDataIO* (*init_proc)(BMessage*);
+	void (*exit_proc)(void);
+	
+	get_image_symbol(addon, "init_transport", B_SYMBOL_TYPE_TEXT, (void **) &init_proc);
+	get_image_symbol(addon, "exit_transport", B_SYMBOL_TYPE_TEXT, (void **) &exit_proc);
+
+	if (init_proc == NULL || exit_proc == NULL) {
+		// transport add-on has not the proper interface
+		printf("Invalid print transport add-on API!\n");
+		unload_add_on(addon);
+		return B_ERROR;
+	}
+
+	printf("Initing %s: ", transport);
+
+	// now, initialize the transport add-on
+	// request BDataIO object from transport add-on
+	BMessage msg('TRIN');
+	msg.AddString("printer_file", "/boot/home/config/settings/printers/test");
+	BDataIO *io = (*init_proc)(&msg);
+	
+	if (io) {
+		printf("done.\nTransport parameters msg =>\n");
+		msg.PrintToStream();
+	} else
+		printf("failed!\n");
+	
+	if (exit_proc) {
+		printf("Exiting %s...\n", transport);
+		(*exit_proc)();
+	}
+	
+	unload_add_on(addon);
+	printf("%s unloaded.\n", transport);
+
+	return B_OK;
+}