mediaserver : Initialize ICU on startup.

In change 2b29e461c in external/icu, we stopped hardcoding the ICU
data path at compile time to avoid two sets of mappings in zygote forked
processes. This means we'll have to tell ICU where its data is if the
process in question isn't forked from the zygote.

bug: 21705078
Change-Id: I829d9fa34fe8209aa8a6d55145ca26fdf0d934e8

4 files changed, 72 insertions, 1 deletions

diff --git a/media/mediaserver/Android.mk b/media/mediaserver/Android.mk
index ba47172..78dfbb1 100644
--- a/media/mediaserver/Android.mk
+++ b/media/mediaserver/Android.mk
@@ -11,13 +11,15 @@ endif
 include $(CLEAR_VARS)
 
 LOCAL_SRC_FILES:= \
-	main_mediaserver.cpp
+	main_mediaserver.cpp \
+	icuutils.cpp
 
 LOCAL_SHARED_LIBRARIES := \
 	libaudioflinger \
 	libaudiopolicyservice \
 	libcamera_metadata\
 	libcameraservice \
+	libicuuc \
 	libmedialogservice \
 	libresourcemanagerservice \
 	libcutils \
diff --git a/media/mediaserver/IcuUtils.h b/media/mediaserver/IcuUtils.h
new file mode 100644
index 0000000..52fab6d
--- /dev/null
+++ b/media/mediaserver/IcuUtils.h
@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ICU_UTILS_H
+#define ICU_UTILS_H
+
+// Initializes ICU or dies trying. This must be called when the process
+// is single threaded.
+void initializeIcuOrDie();
+
+#endif  // ICU_UTILS_H
+
diff --git a/media/mediaserver/icuutils.cpp b/media/mediaserver/icuutils.cpp
new file mode 100644
index 0000000..4015849
--- /dev/null
+++ b/media/mediaserver/icuutils.cpp
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "IcuUtils.h"
+
+#include "unicode/putil.h"
+#include "unicode/uclean.h"
+#include "unicode/utypes.h"
+#include "utils/Log.h"
+
+#include <stdlib.h>
+
+void initializeIcuOrDie() {
+    const char* systemPathPrefix = getenv("ANDROID_ROOT");
+    LOG_ALWAYS_FATAL_IF(systemPathPrefix == NULL, "ANDROID_ROOT environment variable not set");
+
+    char buf[256];
+    const int num_written = snprintf(buf, sizeof(buf), "%s/usr/icu/", systemPathPrefix);
+    LOG_ALWAYS_FATAL_IF((num_written < 0 || static_cast<size_t>(num_written) >= sizeof(buf)),
+            "Unable to construct ICU path.");
+
+    u_setDataDirectory(buf);
+    UErrorCode status = U_ZERO_ERROR;
+
+    // u_setDataDirectory doesn't try doing anything with the directory we gave
+    // it, so we'll have to call u_init to make sure it was successful.
+    u_init(&status);
+    LOG_ALWAYS_FATAL_IF(!U_SUCCESS(status), "Failed to initialize ICU %s", u_errorName(status));
+}
diff --git a/media/mediaserver/main_mediaserver.cpp b/media/mediaserver/main_mediaserver.cpp
index 06b3c6e..27a40b2 100644
--- a/media/mediaserver/main_mediaserver.cpp
+++ b/media/mediaserver/main_mediaserver.cpp
@@ -31,6 +31,7 @@
 // from LOCAL_C_INCLUDES
 #include "AudioFlinger.h"
 #include "CameraService.h"
+#include "IcuUtils.h"
 #include "MediaLogService.h"
 #include "MediaPlayerService.h"
 #include "ResourceManagerService.h"
@@ -124,6 +125,7 @@ int main(int argc __unused, char** argv)
             prctl(PR_SET_PDEATHSIG, SIGKILL);   // if parent media.log dies before me, kill me also
             setpgid(0, 0);                      // but if I die first, don't kill my parent
         }
+        initializeIcuOrDie();
         sp<ProcessState> proc(ProcessState::self());
         sp<IServiceManager> sm = defaultServiceManager();
         ALOGI("ServiceManager: %p", sm.get());