Implementando plugin e extensão java para windows

perry.werneck@gmail.com
1 parent a78dd248
Showing 3 changed files with 165 additions and 6 deletions Show diff stats
src/java/Makefile.in
src/java/private.h
src/java/startstop.cc
@@ -86,7 +86,7 @@ PW3270_CFLAGS	?= -I../include
 PLUGIN_CFLAGS=@CXXFLAGS@ -DPW3270_PLUGIN -Wno-deprecated-declarations @DLL_CFLAGS@ @JNI_CPPFLAGS@ -DJNIDIR="\"$(jnidir)\"" \
 				-DJARDIR="\"$(jvmjardir)\"" @GTK_CFLAGS@ @GTKMAC_CFLAGS@ $(PW3270_CFLAGS)
-PLUGIN_LIBS=@GTK_LIBS@ @GTKMAC_LIBS@ @JVM_LIBS@
+PLUGIN_LIBS=@GTK_LIBS@ @GTKMAC_LIBS@ @INTL_LIBS@ @JVM_LIBS@
 #---[ Rules ]------------------------------------------------------------------
@@ -190,7 +190,7 @@ $(BINRLS)@DLLDIR@/@DLLPREFIX@jni3270@DLLEXT@: \
 	@echo "  LD   `basename $@`"
 	@$(MKDIR) `dirname $@`
-	@$(CXX) @SYSDLL_FLAGS@ $(LDFLAGS) -Wl,-soname,`basename $@` -o $@ $^ $(CLASS_LIBS)
+	@$(CXX) @SYSDLL_FLAGS@ $(LDFLAGS) -Wl,-soname,`basename $@` -o $@ $^ $(CLASS_LIBS) @INTL_LIBS@
 $(BINRLS)/plugins/j3270@DLLEXT@: \
 	$(foreach SRC, $(basename $(PLUGIN_SRC)), $(OBJRLS)/j3270/$(SRC)@OBJEXT@) \
@@ -218,7 +218,7 @@ $(BINDBG)@DLLDIR@/@DLLPREFIX@jni3270@DLLEXT@: \
 	@echo "  LD   `basename $@`"
 	@$(MKDIR) `dirname $@`
-	@$(CXX) @SYSDLL_FLAGS@ $(LDFLAGS) -Wl,-soname,`basename $@` -o $@ $^ $(CLASS_LIBS)
+	@$(CXX) @SYSDLL_FLAGS@ $(LDFLAGS) -Wl,-soname,`basename $@` -o $@ $^ $(CLASS_LIBS) @INTL_LIBS@
 $(BINDBG)/plugins/j3270@DLLEXT@: \
 	$(BINDBG)@DLLDIR@/@DLLPREFIX@jni3270@DLLEXT@ \
@@ -49,6 +49,10 @@
 		namespace java {
+#ifdef _WIN32
+			extern HMODULE	  hModule;
+#endif // WIN32
+
 			extern JavaVM	* jvm;
 			extern JNIEnv	* env;
@@ -154,8 +154,11 @@ extern &quot;C&quot; {
  namespace PW3270_NAMESPACE {
-	JavaVM	* java::jvm	= NULL;
-	JNIEnv	* java::env	= NULL;
+	JavaVM	* java::jvm		= NULL;
+	JNIEnv	* java::env		= NULL;
+#ifdef _WIN32
+	HMODULE	  java::hModule	= NULL;
+#endif // _WIN32
 	void java::failed(GtkWidget *widget, const char *msg, const char *format, ...) {
@@ -189,7 +192,159 @@ extern &quot;C&quot; {
 	bool java::load_jvm(GtkWidget *widget) {
-		#error Implementar
+		if(jvm != NULL) {
+			return true;
+		}
+
+		// Dynamically load jvm library to avoid naming and path problems.
+		HMODULE		  kernel;
+		HANDLE 		  WINAPI (*AddDllDirectory)(PCWSTR NewDirectory);
+		BOOL 	 	  WINAPI (*RemoveDllDirectory)(HANDLE Cookie);
+
+		struct _dlldir {
+			const gchar	* env;
+			const gchar	* path;
+			HANDLE		  cookie;
+		} dlldir[] = {
+			{ "JRE_HOME", "bin\\client", 		0 },
+			{ "JDK_HOME", "jre\\bin\\client",	0 }
+		};
+
+		kernel = LoadLibrary("kernel32.dll");
+
+		AddDllDirectory	= (HANDLE WINAPI (*)(PCWSTR)) GetProcAddress(kernel,"AddDllDirectory");
+		if(AddDllDirectory) {
+
+			// Acrescenta mais caminhos para achar a dll
+			for(size_t f = 0; f < G_N_ELEMENTS(dlldir); f++) {
+
+				const char *env = getenv(dlldir[f].env);
+
+				debug("%s=\"%s\"",dlldir[f].env,env);
+
+				if(env) {
+
+					gchar *p = g_build_filename(env,dlldir[f].path,NULL);
+
+					debug("Adicionando diretório \"%s\"",p);
+
+					wchar_t	*path = (wchar_t *) malloc(4096*sizeof(wchar_t));
+					mbstowcs(path, p, 4095);
+					dlldir[f].cookie = AddDllDirectory(path);
+					free(path);
+
+					g_free(p);
+
+				}
+			}
+
+		}
+	#ifdef DEBUG
+		else {
+			debug("Can't get %s: %s","AddDllDirectory",session::win32_strerror(GetLastError()).c_str())
+		}
+	#endif // DEBUG
+
+		hModule = LoadLibrary("jvm.dll");
+
+		if(hModule) {
+			failed(widget, _(  "Can't load java virtual machine" ), "%s", session::win32_strerror(GetLastError()).c_str());
+		}
+
+		RemoveDllDirectory	= (BOOL WINAPI (*)(HANDLE)) GetProcAddress(kernel,"RemoveDllDirectory");
+		if(RemoveDllDirectory) {
+
+			for(size_t f = 0; f < G_N_ELEMENTS(dlldir); f++) {
+
+				if(dlldir[f].cookie) {
+
+					RemoveDllDirectory(dlldir[f].cookie);
+
+				}
+			}
+
+		}
+
+		FreeLibrary(kernel);
+
+		if(!hModule) {
+			return false;
+		}
+
+		// Consegui carregar a JVM, obtenho o método de controle
+		jint JNICALL (*CreateJavaVM)(JavaVM **, void **, void *) = (jint JNICALL (*)(JavaVM **, void **, void *)) GetProcAddress(hModule,"JNI_CreateJavaVM");
+
+		if(!CreateJavaVM) {
+			failed(widget, _(  "Can't load java virtual machine creation method" ), "%s", session::win32_strerror(GetLastError()).c_str());
+			return false;
+		}
+
+		// Crio a JVM
+		JavaVMInitArgs	  vm_args;
+		JavaVMOption	  options[5];
+
+		jint			  rc		= 0;
+
+		memset(&vm_args,0,sizeof(vm_args));
+		memset(options,0,sizeof(options));
+
+		vm_args.version				= JNI_VERSION_1_4;
+		vm_args.nOptions			= 0;
+		vm_args.options 			= options;
+		vm_args.ignoreUnrecognized	= JNI_FALSE;
+
+		options[vm_args.nOptions].optionString = g_strdup("vfprintf");
+		options[vm_args.nOptions].extraInfo = (void *) jni_vfprintf;
+		vm_args.nOptions++;
+
+		gchar	* exports = NULL;
+		char	  buffer[1024];
+		gchar 	* myDir;
+
+		if(GetModuleFileName(NULL,buffer,sizeof(buffer)) < sizeof(buffer)) {
+
+			gchar * ptr = strrchr(buffer,G_DIR_SEPARATOR);
+			if(ptr) {
+				*ptr = 0;
+				myDir = g_strdup(buffer);
+			} else {
+				myDir = g_strdup(".");
+			}
+
+
+		} else {
+
+			myDir = g_strdup(".");
+
+		}
+
+		debug("myDir=%s",myDir);
+
+		exports = g_build_filename(myDir,"jvm-exports",NULL);
+		g_mkdir_with_parents(exports,0777);
+
+		lib3270_trace_event(v3270_get_session(widget),"java.class.path=%s",exports);
+		lib3270_trace_event(v3270_get_session(widget),"java.library.path=%s",myDir);
+
+		options[vm_args.nOptions++].optionString = g_strdup_printf("-Djava.class.path=%s",exports);
+		options[vm_args.nOptions++].optionString = g_strdup_printf("-Djava.library.path=%s",myDir);
+
+		g_free(myDir);
+		g_free(exports);
+
+		rc = CreateJavaVM(&jvm,(void **)&env,&vm_args);
+		if(rc < 0) {
+			failed(widget, _(  "Can't create java VM" ), _( "The error code was %d" ), (int) rc);
+			jvm = NULL;
+		}
+
+		for(int f=0;f<vm_args.nOptions;f++) {
+			trace("Releasing option %d: %s",f,options[f].optionString);
+			g_free(options[f].optionString);
+		}
+
+
+		return jvm != NULL;
 	}
	@@ -86,7 +86,7 @@ PW3270_CFLAGS ?= -I../include		@@ -86,7 +86,7 @@ PW3270_CFLAGS ?= -I../include
86	PLUGIN_CFLAGS=@CXXFLAGS@ -DPW3270_PLUGIN -Wno-deprecated-declarations @DLL_CFLAGS@ @JNI_CPPFLAGS@ -DJNIDIR="\"$(jnidir)\"" \	86	PLUGIN_CFLAGS=@CXXFLAGS@ -DPW3270_PLUGIN -Wno-deprecated-declarations @DLL_CFLAGS@ @JNI_CPPFLAGS@ -DJNIDIR="\"$(jnidir)\"" \
87	-DJARDIR="\"$(jvmjardir)\"" @GTK_CFLAGS@ @GTKMAC_CFLAGS@ $(PW3270_CFLAGS)	87	-DJARDIR="\"$(jvmjardir)\"" @GTK_CFLAGS@ @GTKMAC_CFLAGS@ $(PW3270_CFLAGS)
88		88
89	-PLUGIN_LIBS=@GTK_LIBS@ @GTKMAC_LIBS@ @JVM_LIBS@	89	+PLUGIN_LIBS=@GTK_LIBS@ @GTKMAC_LIBS@ @INTL_LIBS@ @JVM_LIBS@
90		90
91	#---[ Rules ]------------------------------------------------------------------	91	#---[ Rules ]------------------------------------------------------------------
92		92
	@@ -190,7 +190,7 @@ $(BINRLS)@DLLDIR@/@DLLPREFIX@jni3270@DLLEXT@: \		@@ -190,7 +190,7 @@ $(BINRLS)@DLLDIR@/@DLLPREFIX@jni3270@DLLEXT@: \
190		190
191	@echo " LD `basename $@`"	191	@echo " LD `basename $@`"
192	@$(MKDIR) `dirname $@`	192	@$(MKDIR) `dirname $@`
193	- @$(CXX) @SYSDLL_FLAGS@ $(LDFLAGS) -Wl,-soname,`basename $@` -o $@ $^ $(CLASS_LIBS)	193	+ @$(CXX) @SYSDLL_FLAGS@ $(LDFLAGS) -Wl,-soname,`basename $@` -o $@ $^ $(CLASS_LIBS) @INTL_LIBS@
194		194
195	$(BINRLS)/plugins/j3270@DLLEXT@: \	195	$(BINRLS)/plugins/j3270@DLLEXT@: \
196	$(foreach SRC, $(basename $(PLUGIN_SRC)), $(OBJRLS)/j3270/$(SRC)@OBJEXT@) \	196	$(foreach SRC, $(basename $(PLUGIN_SRC)), $(OBJRLS)/j3270/$(SRC)@OBJEXT@) \
	@@ -218,7 +218,7 @@ $(BINDBG)@DLLDIR@/@DLLPREFIX@jni3270@DLLEXT@: \		@@ -218,7 +218,7 @@ $(BINDBG)@DLLDIR@/@DLLPREFIX@jni3270@DLLEXT@: \
218		218
219	@echo " LD `basename $@`"	219	@echo " LD `basename $@`"
220	@$(MKDIR) `dirname $@`	220	@$(MKDIR) `dirname $@`
221	- @$(CXX) @SYSDLL_FLAGS@ $(LDFLAGS) -Wl,-soname,`basename $@` -o $@ $^ $(CLASS_LIBS)	221	+ @$(CXX) @SYSDLL_FLAGS@ $(LDFLAGS) -Wl,-soname,`basename $@` -o $@ $^ $(CLASS_LIBS) @INTL_LIBS@
222		222
223	$(BINDBG)/plugins/j3270@DLLEXT@: \	223	$(BINDBG)/plugins/j3270@DLLEXT@: \
224	$(BINDBG)@DLLDIR@/@DLLPREFIX@jni3270@DLLEXT@ \	224	$(BINDBG)@DLLDIR@/@DLLPREFIX@jni3270@DLLEXT@ \
	@@ -154,8 +154,11 @@ extern "C" {		@@ -154,8 +154,11 @@ extern "C" {
154		154
155	namespace PW3270_NAMESPACE {	155	namespace PW3270_NAMESPACE {
156		156
157	- JavaVM * java::jvm = NULL;
158	- JNIEnv * java::env = NULL;	157	+ JavaVM * java::jvm = NULL;
		158	+ JNIEnv * java::env = NULL;
		159	+#ifdef _WIN32
		160	+ HMODULE java::hModule = NULL;
		161	+#endif // _WIN32
159		162
160	void java::failed(GtkWidget widget, const char msg, const char *format, ...) {	163	void java::failed(GtkWidget widget, const char msg, const char *format, ...) {
161		164
	@@ -189,7 +192,159 @@ extern "C" {		@@ -189,7 +192,159 @@ extern "C" {
189		192
190	bool java::load_jvm(GtkWidget *widget) {	193	bool java::load_jvm(GtkWidget *widget) {
191		194
192	- #error Implementar	195	+ if(jvm != NULL) {
		196	+ return true;
		197	+ }
		198	+
		199	+ // Dynamically load jvm library to avoid naming and path problems.
		200	+ HMODULE kernel;
		201	+ HANDLE WINAPI (*AddDllDirectory)(PCWSTR NewDirectory);
		202	+ BOOL WINAPI (*RemoveDllDirectory)(HANDLE Cookie);
		203	+
		204	+ struct _dlldir {
		205	+ const gchar * env;
		206	+ const gchar * path;
		207	+ HANDLE cookie;
		208	+ } dlldir[] = {
		209	+ { "JRE_HOME", "bin\\client", 0 },
		210	+ { "JDK_HOME", "jre\\bin\\client", 0 }
		211	+ };
		212	+
		213	+ kernel = LoadLibrary("kernel32.dll");
		214	+
		215	+ AddDllDirectory = (HANDLE WINAPI (*)(PCWSTR)) GetProcAddress(kernel,"AddDllDirectory");
		216	+ if(AddDllDirectory) {
		217	+
		218	+ // Acrescenta mais caminhos para achar a dll
		219	+ for(size_t f = 0; f < G_N_ELEMENTS(dlldir); f++) {
		220	+
		221	+ const char *env = getenv(dlldir[f].env);
		222	+
		223	+ debug("%s=\"%s\"",dlldir[f].env,env);
		224	+
		225	+ if(env) {
		226	+
		227	+ gchar *p = g_build_filename(env,dlldir[f].path,NULL);
		228	+
		229	+ debug("Adicionando diretório \"%s\"",p);
		230	+
		231	+ wchar_t path = (wchar_t ) malloc(4096*sizeof(wchar_t));
		232	+ mbstowcs(path, p, 4095);
		233	+ dlldir[f].cookie = AddDllDirectory(path);
		234	+ free(path);
		235	+
		236	+ g_free(p);
		237	+
		238	+ }
		239	+ }
		240	+
		241	+ }
		242	+ #ifdef DEBUG
		243	+ else {
		244	+ debug("Can't get %s: %s","AddDllDirectory",session::win32_strerror(GetLastError()).c_str())
		245	+ }
		246	+ #endif // DEBUG
		247	+
		248	+ hModule = LoadLibrary("jvm.dll");
		249	+
		250	+ if(hModule) {
		251	+ failed(widget, _( "Can't load java virtual machine" ), "%s", session::win32_strerror(GetLastError()).c_str());
		252	+ }
		253	+
		254	+ RemoveDllDirectory = (BOOL WINAPI (*)(HANDLE)) GetProcAddress(kernel,"RemoveDllDirectory");
		255	+ if(RemoveDllDirectory) {
		256	+
		257	+ for(size_t f = 0; f < G_N_ELEMENTS(dlldir); f++) {
		258	+
		259	+ if(dlldir[f].cookie) {
		260	+
		261	+ RemoveDllDirectory(dlldir[f].cookie);
		262	+
		263	+ }
		264	+ }
		265	+
		266	+ }
		267	+
		268	+ FreeLibrary(kernel);
		269	+
		270	+ if(!hModule) {
		271	+ return false;
		272	+ }
		273	+
		274	+ // Consegui carregar a JVM, obtenho o método de controle
		275	+ jint JNICALL (CreateJavaVM)(JavaVM , void , void ) = (jint JNICALL ()(JavaVM , void , void )) GetProcAddress(hModule,"JNI_CreateJavaVM");
		276	+
		277	+ if(!CreateJavaVM) {
		278	+ failed(widget, _( "Can't load java virtual machine creation method" ), "%s", session::win32_strerror(GetLastError()).c_str());
		279	+ return false;
		280	+ }
		281	+
		282	+ // Crio a JVM
		283	+ JavaVMInitArgs vm_args;
		284	+ JavaVMOption options[5];
		285	+
		286	+ jint rc = 0;
		287	+
		288	+ memset(&vm_args,0,sizeof(vm_args));
		289	+ memset(options,0,sizeof(options));
		290	+
		291	+ vm_args.version = JNI_VERSION_1_4;
		292	+ vm_args.nOptions = 0;
		293	+ vm_args.options = options;
		294	+ vm_args.ignoreUnrecognized = JNI_FALSE;
		295	+
		296	+ options[vm_args.nOptions].optionString = g_strdup("vfprintf");
		297	+ options[vm_args.nOptions].extraInfo = (void *) jni_vfprintf;
		298	+ vm_args.nOptions++;
		299	+
		300	+ gchar * exports = NULL;
		301	+ char buffer[1024];
		302	+ gchar * myDir;
		303	+
		304	+ if(GetModuleFileName(NULL,buffer,sizeof(buffer)) < sizeof(buffer)) {
		305	+
		306	+ gchar * ptr = strrchr(buffer,G_DIR_SEPARATOR);
		307	+ if(ptr) {
		308	+ *ptr = 0;
		309	+ myDir = g_strdup(buffer);
		310	+ } else {
		311	+ myDir = g_strdup(".");
		312	+ }
		313	+
		314	+
		315	+ } else {
		316	+
		317	+ myDir = g_strdup(".");
		318	+
		319	+ }
		320	+
		321	+ debug("myDir=%s",myDir);
		322	+
		323	+ exports = g_build_filename(myDir,"jvm-exports",NULL);
		324	+ g_mkdir_with_parents(exports,0777);
		325	+
		326	+ lib3270_trace_event(v3270_get_session(widget),"java.class.path=%s",exports);
		327	+ lib3270_trace_event(v3270_get_session(widget),"java.library.path=%s",myDir);
		328	+
		329	+ options[vm_args.nOptions++].optionString = g_strdup_printf("-Djava.class.path=%s",exports);
		330	+ options[vm_args.nOptions++].optionString = g_strdup_printf("-Djava.library.path=%s",myDir);
		331	+
		332	+ g_free(myDir);
		333	+ g_free(exports);
		334	+
		335	+ rc = CreateJavaVM(&jvm,(void **)&env,&vm_args);
		336	+ if(rc < 0) {
		337	+ failed(widget, _( "Can't create java VM" ), _( "The error code was %d" ), (int) rc);
		338	+ jvm = NULL;
		339	+ }
		340	+
		341	+ for(int f=0;f<vm_args.nOptions;f++) {
		342	+ trace("Releasing option %d: %s",f,options[f].optionString);
		343	+ g_free(options[f].optionString);
		344	+ }
		345	+
		346	+
		347	+ return jvm != NULL;
193		348
194	}	349	}
195		350