Implemented Process working directory methods on windows, and fixed file system details.

readme.md

@@ -182,7 +182,6 @@ You can run `$INSTALL_DIR/bin/native-platform-test` to run the test application.
 * Determine C charset once at startup
 * Change readLink() implementation so that it does not need to NULL terminate the encoded content
 * Don't use NewStringUTF() anywhere
-* Don't use NewString() anywhere
 * Use iconv() to convert from C char string to UTF-16 when converting from C char string to Java String.
 * Support for cygwin terminal
 * Use TERM=xtermc instead of TERM=xterm on Solaris.

src/main/cpp/win.cpp

@@ -28,6 +28,22 @@ void mark_failed_with_errno(JNIEnv *env, const char* message, jobject result) {
     mark_failed_with_code(env, message, GetLastError(), result);
 }
 
+jstring wchar_to_java(JNIEnv* env, const wchar_t* chars, size_t len, jobject result) {
+    if (sizeof(wchar_t) != 2) {
+        mark_failed_with_message(env, "unexpected size of wchar_t", result);
+        return NULL;
+    }
+    return env->NewString((jchar*)chars, len);
+}
+
+wchar_t* java_to_wchar(JNIEnv *env, jstring string, jobject result) {
+    jsize len = env->GetStringLength(string);
+    wchar_t* str = (wchar_t*)malloc(sizeof(wchar_t) * (len+1));
+    env->GetStringRegion(string, 0, len, (jchar*)str);
+    str[len] = L'\0';
+    return str;
+}
+
 JNIEXPORT void JNICALL
 Java_net_rubygrapefruit_platform_internal_jni_NativeLibraryFunctions_getSystemInfo(JNIEnv *env, jclass target, jobject info, jobject result) {
     jclass infoClass = env->GetObjectClass(info);
@@ -67,6 +83,41 @@ Java_net_rubygrapefruit_platform_internal_jni_PosixProcessFunctions_getPid(JNIEn
     return GetCurrentProcessId();
 }
 
+JNIEXPORT jstring JNICALL
+Java_net_rubygrapefruit_platform_internal_jni_PosixProcessFunctions_getWorkingDirectory(JNIEnv *env, jclass target, jobject result) {
+    DWORD size = GetCurrentDirectoryW(0, NULL);
+    if (size == 0) {
+        mark_failed_with_errno(env, "could not determine length of working directory path", result);
+        return NULL;
+    }
+    size = size+1; // Needs to include null character
+    wchar_t* path = (wchar_t*)malloc(sizeof(wchar_t) * size);
+    DWORD copied = GetCurrentDirectoryW(size, path);
+    if (copied == 0) {
+        free(path);
+        mark_failed_with_errno(env, "could get working directory path", result);
+        return NULL;
+    }
+    jstring dirName = wchar_to_java(env, path, copied, result);
+    free(path);
+    return dirName;
+}
+
+JNIEXPORT void JNICALL
+Java_net_rubygrapefruit_platform_internal_jni_PosixProcessFunctions_setWorkingDirectory(JNIEnv *env, jclass target, jstring dir, jobject result) {
+    wchar_t* dirPath = java_to_wchar(env, dir, result);
+    if (dirPath == NULL) {
+        return;
+    }
+    if (!SetCurrentDirectoryW(dirPath)) {
+        mark_failed_with_errno(env, "could not set current directory", result);
+        free(dirPath);
+        return;
+    }
+
+    free(dirPath);
+}
+
 /*
  * File system functions
  */
@@ -121,8 +172,11 @@ Java_net_rubygrapefruit_platform_internal_jni_PosixFileSystemFunctions_listFileS
                 wcscpy(fsName, L"unknown");
             }
             for (;cur[0] != L'\0'; cur += wcslen(cur) + 1) {
-                env->CallVoidMethod(info, method, env->NewString((jchar*)deviceName, wcslen(deviceName)),
-                                    env->NewString((jchar*)fsName, wcslen(fsName)), env->NewString((jchar*)cur, wcslen(cur)), JNI_FALSE);
+                env->CallVoidMethod(info, method,
+                                    wchar_to_java(env, cur, wcslen(cur), result),
+                                    wchar_to_java(env, fsName, wcslen(fsName), result),
+                                    wchar_to_java(env, deviceName, wcslen(deviceName), result),
+                                    JNI_FALSE);
             }
         }
 

src/main/headers/generic.h

@@ -40,27 +40,13 @@ extern void mark_failed_with_errno(JNIEnv *env, const char* message, jobject res
  */
 extern void mark_failed_with_code(JNIEnv *env, const char* message, int error_code, jobject result);
 
-typedef struct wchar_struct {
-    // Not NULL terminated
-    wchar_t* chars;
-    // number of characters in the string
-    size_t len;
-    jstring source;
-    JNIEnv *env;
-} wchar_str;
-
 /*
- * Converts the given Java string to a wchar_str. Should call wchar_str_free() when finished.
+ * Converts the given Java string to a NULL terminated wchar_str. Should call free() when finished.
  *
  * Returns NULL on failure.
  */
-extern wchar_str*
-java_to_wchar_str(JNIEnv *env, jstring string, jobject result);
-
-/*
- * Releases resources used by the given string.
- */
-extern void wchar_str_free(wchar_str* str);
+extern wchar_t*
+java_to_wchar(JNIEnv *env, jstring string, jobject result);
 
 /*
  * Converts the given wchar_t string to a Java string.
@@ -70,7 +56,7 @@ extern void wchar_str_free(wchar_str* str);
 extern jstring wchar_to_java(JNIEnv* env, const wchar_t* chars, size_t len, jobject result);
 
 /*
- * Converts the given Java string to a char_str. Should call free() when finished.
+ * Converts the given Java string to a NULL terminated char string. Should call free() when finished.
  *
  * Returns NULL on failure.
  */

src/test/groovy/net/rubygrapefruit/platform/PosixFileTest.groovy

@@ -33,23 +33,16 @@ class PosixFileTest extends Specification {
     }
 
     def "can set mode on a file"() {
-        def testFile = tmpDir.newFile("test.txt")
+        def testFile = tmpDir.newFile(fileName)
 
         when:
         file.setMode(testFile, 0740)
 
         then:
         file.getMode(testFile) == 0740
-    }
 
-    def "can set mode on a file with unicode in its name"() {
-        def testFile = tmpDir.newFile("test\u03b1.txt")
-
-        when:
-        file.setMode(testFile, 0740)
-
-        then:
-        file.getMode(testFile) == 0740
+        where:
+        fileName << ["test.txt", "test\u03b1.txt"]
     }
 
     def "cannot set mode on file that does not exist"() {

src/test/groovy/net/rubygrapefruit/platform/ProcessTest.groovy

@@ -34,8 +34,8 @@ class ProcessTest extends Specification {
         process.getProcessId() != 0
     }
 
-    def "can change working directory"() {
-        def newDir = tmpDir.newFolder("dir").canonicalFile
+    def "can get and change working directory"() {
+        def newDir = tmpDir.newFolder(dir).canonicalFile
 
         when:
         def original = process.workingDirectory
@@ -54,5 +54,8 @@ class ProcessTest extends Specification {
 
         cleanup:
         process.workingDirectory = original
+
+        where:
+        dir << ['dir', 'dir\u03b1']
     }
 }