Lshal: support commands.
Support the following commands:
lshal list
lshal list -itrpc
lshal help
lshal help list
lshal list -h
lshal list --help
Test: run these commands
Bug: 37725279
Change-Id: I970fbc8d250d43f57e92f783229e0645d7e8df4e
diff --git a/cmds/lshal/ListCommand.h b/cmds/lshal/ListCommand.h
new file mode 100644
index 0000000..42c965f
--- /dev/null
+++ b/cmds/lshal/ListCommand.h
@@ -0,0 +1,101 @@
+/*
+ * Copyright (C) 2017 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 FRAMEWORK_NATIVE_CMDS_LSHAL_LIST_COMMAND_H_
+#define FRAMEWORK_NATIVE_CMDS_LSHAL_LIST_COMMAND_H_
+
+#include <stdint.h>
+
+#include <fstream>
+#include <string>
+#include <vector>
+
+#include <android-base/macros.h>
+#include <android/hidl/manager/1.0/IServiceManager.h>
+
+#include "NullableOStream.h"
+#include "TableEntry.h"
+#include "utils.h"
+
+namespace android {
+namespace lshal {
+
+class Lshal;
+
+class ListCommand {
+public:
+ ListCommand(Lshal &lshal);
+ Status main(const std::string &command, const Arg &arg);
+private:
+ Status parseArgs(const std::string &command, const Arg &arg);
+ Status fetch();
+ void postprocess();
+ void dump();
+ void putEntry(TableEntrySource source, TableEntry &&entry);
+ Status fetchPassthrough(const sp<::android::hidl::manager::V1_0::IServiceManager> &manager);
+ Status fetchBinderized(const sp<::android::hidl::manager::V1_0::IServiceManager> &manager);
+ Status fetchAllLibraries(const sp<::android::hidl::manager::V1_0::IServiceManager> &manager);
+ bool getReferencedPids(
+ pid_t serverPid, std::map<uint64_t, Pids> *objects) const;
+ void dumpTable();
+ void dumpVintf() const;
+ void printLine(
+ const std::string &interfaceName,
+ const std::string &transport,
+ const std::string &arch,
+ const std::string &server,
+ const std::string &serverCmdline,
+ const std::string &address, const std::string &clients,
+ const std::string &clientCmdlines) const ;
+ // Return /proc/{pid}/cmdline if it exists, else empty string.
+ const std::string &getCmdline(pid_t pid);
+ // Call getCmdline on all pid in pids. If it returns empty string, the process might
+ // have died, and the pid is removed from pids.
+ void removeDeadProcesses(Pids *pids);
+ void forEachTable(const std::function<void(Table &)> &f);
+ void forEachTable(const std::function<void(const Table &)> &f) const;
+
+ Lshal &mLshal;
+
+ Table mServicesTable{};
+ Table mPassthroughRefTable{};
+ Table mImplementationsTable{};
+
+ NullableOStream<std::ostream> mErr;
+ NullableOStream<std::ostream> mOut;
+ NullableOStream<std::ofstream> mFileOutput = nullptr;
+ TableEntryCompare mSortColumn = nullptr;
+ TableEntrySelect mSelectedColumns = 0;
+ // If true, cmdlines will be printed instead of pid.
+ bool mEnableCmdlines = false;
+
+ // If true, calls IBase::debug(...) on each service.
+ bool mEmitDebugInfo = false;
+
+ bool mVintf = false;
+ // If an entry does not exist, need to ask /proc/{pid}/cmdline to get it.
+ // If an entry exist but is an empty string, process might have died.
+ // If an entry exist and not empty, it contains the cached content of /proc/{pid}/cmdline.
+ std::map<pid_t, std::string> mCmdlines;
+
+ DISALLOW_COPY_AND_ASSIGN(ListCommand);
+};
+
+
+} // namespace lshal
+} // namespace android
+
+#endif // FRAMEWORK_NATIVE_CMDS_LSHAL_LIST_COMMAND_H_