Merge PR #26

Usage:

default is lmdb for blockchain branch:
$ make release

same as:
$ DATABASE=lmdb make release

for original in-memory implementation:
$ DATABASE=memory make release

COMMITS:

  - Add compile-time support for both db implementations: in-memory and LMDB

NOTE:
  The default should be changed to lmdb when this is merged upstream
  unless we're 100% sure the LMDB implementation is ready.

1 files changed, 21 insertions, 0 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index a094fe8be..ef479095f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -116,6 +116,27 @@ if(STATIC)
   endif()
 endif()
 
+# default database:
+# should be lmdb for testing, memory for production still
+# set(DATABASE memory)
+set(DATABASE lmdb)
+
+if (DEFINED ENV{DATABASE})
+  set(DATABASE $ENV{DATABASE})
+  message(STATUS "DATABASE set: ${DATABASE}")
+else()
+  message(STATUS "Could not find DATABASE in env (not required unless you want to change database type from default: ${DATABASE})")
+endif()
+if (DATABASE STREQUAL "lmdb")
+  set(BLOCKCHAIN_DB DB_LMDB)
+elseif (DATABASE STREQUAL "memory")
+  set(BLOCKCHAIN_DB DB_MEMORY)
+else()
+  die("Invalid database type: ${DATABASE}")
+endif()
+
+add_definitions("-DBLOCKCHAIN_DB=${BLOCKCHAIN_DB}")
+
 if (UNIX AND NOT APPLE)
   # Note that at the time of this writing the -Wstrict-prototypes flag added below will make this fail
   find_package(Threads)