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04_day/ashmem_1/Android.bp

@@ -0,0 +1,15 @@
+cc_binary {
+    name: "my_server_ashmem",
+    shared_libs: ["liblog", "libutils", "libbinder"],
+    srcs: [
+        "my_server.cpp",
+    ],
+}
+
+cc_binary {
+    name: "my_client_ashmem",
+    shared_libs: ["liblog", "libutils", "libbinder"],
+    srcs: [
+        "my_client.cpp",
+    ],
+}

04_day/ashmem_1/my_client.cpp

@@ -0,0 +1,23 @@
+
+#include <binder/ProcessState.h>
+#include <binder/IServiceManager.h>
+#include <binder/Binder.h>
+#include <binder/IMemory.h>
+#include <utils/String16.h>
+
+using namespace android;
+
+int main()
+{
+	sp<ProcessState> proc(ProcessState::self());
+	sp<IServiceManager> sm(defaultServiceManager());
+	sp<IBinder> binder = sm->getService( String16("ashmem.service") );
+	sp<IMemoryHeap> ashmem = interface_cast<IMemoryHeap>( binder );
+	char *p = (char*)ashmem->getBase();
+	printf("%s\n", p );
+
+	return 0;
+}
+
+
+

04_day/ashmem_1/my_server.cpp

@@ -0,0 +1,27 @@
+
+#include <binder/ProcessState.h>
+#include <binder/IServiceManager.h>
+#include <binder/Binder.h>
+#include <binder/IPCThreadState.h>
+#include <utils/String16.h>
+#include <binder/MemoryHeapBase.h>
+#include <string.h>
+
+using namespace android;
+
+int main()
+{
+	sp<ProcessState> proc(ProcessState::self());
+	sp<IServiceManager> sm(defaultServiceManager());
+	sp<IMemoryHeap> heap = new MemoryHeapBase(4096);
+	sm->addService( String16("ashmem.service"), heap->asBinder(heap) );
+	char *p;
+	p = (char*)heap->base();
+	strcpy( p, "Hello Android!!");
+	IPCThreadState::self()->joinThreadPool();
+
+	return 0;
+}
+
+
+

04_day/ashmem_2/Android.bp

@@ -0,0 +1,15 @@
+cc_binary {
+    name: "my_server_ashmem_1",
+    shared_libs: ["liblog", "libutils", "libbinder"],
+    srcs: [
+        "my_server.cpp",
+    ],
+}
+
+cc_binary {
+    name: "my_client_ashmem_1",
+    shared_libs: ["liblog", "libutils", "libbinder"],
+    srcs: [
+        "my_client.cpp",
+    ],
+}

04_day/ashmem_2/my_client.cpp

@@ -0,0 +1,26 @@
+
+#include <binder/ProcessState.h>
+#include <binder/IServiceManager.h>
+#include <binder/Binder.h>
+#include <binder/IMemory.h>
+#include <utils/String16.h>
+
+using namespace android;
+
+int main()
+{
+	sp<ProcessState> proc(ProcessState::self());
+	sp<IServiceManager> sm(defaultServiceManager());
+	sp<IBinder> binder = sm->getService( String16("ashmem.service") );
+	sp<IMemory> base = interface_cast<IMemory>( binder );
+	ssize_t offset=0; 
+	size_t size=0;
+	sp<IMemoryHeap> heap = base->getMemory(&offset, &size);
+	char *p = (char*)heap->getBase();
+	printf("%s\n", p+offset );
+
+	return 0;
+}
+
+
+

04_day/ashmem_2/my_server.cpp

@@ -0,0 +1,29 @@
+
+#include <binder/ProcessState.h>
+#include <binder/IServiceManager.h>
+#include <binder/Binder.h>
+#include <binder/IPCThreadState.h>
+#include <utils/String16.h>
+#include <binder/MemoryHeapBase.h>
+#include <binder/MemoryBase.h>
+#include <string.h>
+
+using namespace android;
+
+int main()
+{
+	sp<ProcessState> proc(ProcessState::self());
+	sp<IServiceManager> sm(defaultServiceManager());
+	sp<IMemoryHeap> heap = new MemoryHeapBase(4096);
+	sp<IMemory> base = new MemoryBase( heap, 1024*3, 1024);
+	sm->addService( String16("ashmem.service"), base->asBinder(base) );
+	char *p;
+	p = (char*)heap->base();
+	strcpy( p + 3*1024, "Hello Android!!");
+	IPCThreadState::self()->joinThreadPool();
+
+	return 0;
+}
+
+
+