From 17ab1f04ef3739553ec24d4e14370ec72fe80bdb Mon Sep 17 00:00:00 2001
From: Adam Murdoch <adam.murdoch@gradleware.com>
Date: Sat, 15 Sep 2012 09:58:34 +1000
Subject: [PATCH] First cut of file system information for windows.

---
 readme.md                                     |  4 ++
 src/main/cpp/win.cpp                          | 51 +++++++++++++++++++
 .../platform/internal/Platform.java           |  5 +-
 3 files changed, 59 insertions(+), 1 deletion(-)

diff --git a/readme.md b/readme.md
index 0a1e3a6..2dbce32 100755
--- a/readme.md
+++ b/readme.md
@@ -125,10 +125,14 @@ You can run `$INSTALL_DIR/bin/native-platform` to run the test application.
 
 ### Improvements
 
+* Use wchar_to_java() for windows system and file system info
+* Test network file systems on Mac, Linux, Windows
+* Test mount points on Windows
 * Cache class, method and field lookups (in particular for String conversions).
 * 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.
diff --git a/src/main/cpp/win.cpp b/src/main/cpp/win.cpp
index a5bd1f2..7c727df 100755
--- a/src/main/cpp/win.cpp
+++ b/src/main/cpp/win.cpp
@@ -50,6 +50,57 @@ Java_net_rubygrapefruit_platform_internal_jni_PosixProcessFunctions_getPid(JNIEn
     return GetCurrentProcessId();
 }
 
+/*
+ * File system functions
+ */
+JNIEXPORT void JNICALL
+Java_net_rubygrapefruit_platform_internal_jni_PosixFileSystemFunctions_listFileSystems(JNIEnv *env, jclass target, jobject info, jobject result) {
+    // TODO - don't use the stack
+    wchar_t volumeName[MAX_PATH+1];
+    wchar_t deviceName[MAX_PATH+1];
+    wchar_t pathNames[MAX_PATH+1];
+    wchar_t fsName[MAX_PATH+1];
+
+    jclass info_class = env->GetObjectClass(info);
+    jmethodID method = env->GetMethodID(info_class, "add", "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Z)V");
+
+    HANDLE handle = FindFirstVolumeW(volumeName, MAX_PATH+1);
+    if (handle == INVALID_HANDLE_VALUE) {
+        printf("no volumes\r\n");
+        return;
+    }
+    while(true) {
+        // Chop off the trailing '\'
+        size_t len = wcslen(volumeName);
+        volumeName[len-1] = L'\0';
+
+        QueryDosDeviceW(&volumeName[4], deviceName, MAX_PATH+1);
+        // TODO - error
+        volumeName[len-1] = L'\\';
+
+        DWORD used;
+        GetVolumePathNamesForVolumeNameW(volumeName, pathNames, MAX_PATH+1, &used);
+        // TODO - error
+        wchar_t* cur = pathNames;
+        if (cur[0] != L'\0') {
+            GetVolumeInformationW(cur, NULL, 0, NULL, NULL, NULL, fsName, MAX_PATH+1);
+            // TODO - error
+            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);
+            }
+        }
+
+        if (FindNextVolumeW(handle, volumeName, MAX_PATH) == 0) {
+            if (GetLastError() != ERROR_NO_MORE_FILES) {
+                // TODO - fail
+            }
+            break;
+        }
+    }
+    FindVolumeClose(handle);
+}
+
 /*
  * Console functions
  */
diff --git a/src/main/java/net/rubygrapefruit/platform/internal/Platform.java b/src/main/java/net/rubygrapefruit/platform/internal/Platform.java
index 82dec44..31fc76d 100755
--- a/src/main/java/net/rubygrapefruit/platform/internal/Platform.java
+++ b/src/main/java/net/rubygrapefruit/platform/internal/Platform.java
@@ -55,7 +55,7 @@ public abstract class Platform {
 
         @Override
         public <T extends NativeIntegration> T get(Class<T> type) {
-            if (type.equals(net.rubygrapefruit.platform.Process.class)) {
+            if (type.equals(Process.class)) {
                 return type.cast(new DefaultProcess());
             }
             if (type.equals(Terminals.class)) {
@@ -64,6 +64,9 @@ public abstract class Platform {
             if (type.equals(SystemInfo.class)) {
                 return type.cast(new DefaultSystemInfo());
             }
+            if (type.equals(FileSystems.class)) {
+                return type.cast(new PosixFileSystems());
+            }
             return super.get(type);
         }
     }