add speedb is awesome example to support new getting started instruct…

…ions(#378)

examples/.gitignore

@@ -8,3 +8,4 @@ options_file_example
 rocksdb_backup_restore_example
 simple_example
 transaction_example
+speedb_is_awesome_example

examples/Makefile

@@ -19,7 +19,7 @@ CFLAGS += -Wstrict-prototypes
 
 .PHONY: clean static_lib
 
-all: simple_example column_families_example compact_files_example c_simple_example optimistic_transaction_example transaction_example compaction_filter_example options_file_example rocksdb_backup_restore_example
+all: simple_example column_families_example compaction_filter_example compact_files_example c_simple_example optimistic_transaction_example transaction_example options_file_example rocksdb_backup_restore_example speedb_is_awesome_example
 
 simple_example: static_lib simple_example.cc
 	$(CXX) $(CXXFLAGS) $@.cc -o$@ ../$(LIBNAME).a -I../include -O2 -std=c++17 $(PLATFORM_LDFLAGS) $(PLATFORM_CXXFLAGS) $(EXEC_LDFLAGS)
@@ -51,11 +51,14 @@ options_file_example: static_lib options_file_example.cc
 multi_processes_example: static_lib multi_processes_example.cc
 	$(CXX) $(CXXFLAGS) $@.cc -o$@ ../$(LIBNAME).a -I../include -O2 -std=c++17 $(PLATFORM_LDFLAGS) $(PLATFORM_CXXFLAGS) $(EXEC_LDFLAGS)
 
-rocksdb_backup_restore_example: librocksdb rocksdb_backup_restore_example.cc
-	$(CXX) $(CXXFLAGS) $@.cc -o$@ ../librocksdb.a -I../include -O2 -std=c++17 $(PLATFORM_LDFLAGS) $(PLATFORM_CXXFLAGS) $(EXEC_LDFLAGS)
+speedb_is_awesome_example: static_lib speedb_is_awesome_example.cc
+	$(CXX) $(CXXFLAGS) $@.cc -o$@ ../$(LIBNAME).a -I../include -O2 -std=c++17 $(PLATFORM_LDFLAGS) $(PLATFORM_CXXFLAGS) $(EXEC_LDFLAGS)
+
+rocksdb_backup_restore_example: static_lib rocksdb_backup_restore_example.cc
+	$(CXX) $(CXXFLAGS) $@.cc -o$@ ../$(LIBNAME).a -I../include -O2 -std=c++17 $(PLATFORM_LDFLAGS) $(PLATFORM_CXXFLAGS) $(EXEC_LDFLAGS)
 
 clean:
-	rm -rf ./simple_example ./column_families_example ./compact_files_example ./compaction_filter_example ./c_simple_example c_simple_example.o ./optimistic_transaction_example ./transaction_example ./options_file_example ./multi_processes_example ./rocksdb_backup_restore_example
+	rm -rf ./simple_example ./column_families_example ./compact_files_example ./compaction_filter_example ./c_simple_example c_simple_example.o ./optimistic_transaction_example ./transaction_example ./options_file_example ./multi_processes_example ./rocksdb_backup_restore_example ./speedb_is_awesome_example
 
 static_lib:
 	LIBNAME="$(LIBNAME)" $(MAKE) -C .. static_lib

examples/speedb_is_awesome_example.cc

@@ -0,0 +1,44 @@
+#include <iostream>
+
+#include "rocksdb/db.h"
+#include "rocksdb/options.h"
+
+using ROCKSDB_NAMESPACE::DB;
+using ROCKSDB_NAMESPACE::Options;
+using ROCKSDB_NAMESPACE::ReadOptions;
+using ROCKSDB_NAMESPACE::Status;
+using ROCKSDB_NAMESPACE::WriteOptions;
+
+#if defined(OS_WIN)
+std::string kDBPath = "C:\\Windows\\TEMP\\speedb_is_awesome_example";
+#else
+std::string kDBPath = "/tmp/speedb_is_awesome_example";
+#endif
+
+int main() {
+  // Open the storage
+  DB* db = nullptr;
+  Options options;
+  // create the DB if it's not already present
+  options.create_if_missing = true;
+  Status s = DB::Open(options, kDBPath, &db);
+  assert(s.ok());
+
+  // append new entry
+  std::string key = "key_1";
+  std::string put_value = "Speedb is awesome!";
+  s = db->Put(WriteOptions(), key, put_value);
+  assert(s.ok());
+
+  // retrieve entry
+  std::string get_value;
+  s = db->Get(ReadOptions(), key, &get_value);
+  assert(s.ok());
+  assert(get_value == put_value);
+  std::cout << get_value << std::endl;
+
+  // close DB
+  s = db->Close();
+  assert(s.ok());
+  return 0;
+}