#941 add basic database-independent abstraction (dbi)

Add basic infrastructure to support for the independent database layer.

Makefile

@@ -12,10 +12,10 @@ CFLAGS += -g -Wall -I../../Includes
 CPPFLAGS := $(CFLAGS)
 
 # Opciones de linkado
-LDFLAGS := -Wl,--no-as-needed $(shell mysql_config --libs) -lev -ljansson
+LDFLAGS := -Wl,--no-as-needed $(shell mysql_config --libs) -lev -ljansson -ldbi
 
 # Ficheros objetos
-OBJS := ../../Includes/Database.o sources/ogAdmServer.o 
+OBJS := ../../Includes/Database.o sources/ogAdmServer.o sources/dbi.o
 
 
 all: $(PROYECTO)

sources/dbi.cpp

@@ -0,0 +1,37 @@
+#include "dbi.h"
+
+struct og_dbi *og_dbi_open(struct og_dbi_config *config)
+{
+	struct og_dbi *dbi;
+
+	dbi = (struct og_dbi *)malloc(sizeof(struct og_dbi));
+	if (!dbi)
+		return NULL;
+
+	dbi_initialize_r(NULL, &dbi->inst);
+	dbi->conn = dbi_conn_new_r("mysql", dbi->inst);
+	if (!dbi->conn) {
+		free(dbi);
+		return NULL;
+	}
+
+	dbi_conn_set_option(dbi->conn, "host", config->host);
+	dbi_conn_set_option(dbi->conn, "username", config->user);
+	dbi_conn_set_option(dbi->conn, "password", config->passwd);
+	dbi_conn_set_option(dbi->conn, "dbname", config->database);
+	dbi_conn_set_option(dbi->conn, "encoding", "UTF-8");
+
+	if (dbi_conn_connect(dbi->conn) < 0) {
+		free(dbi);
+		return NULL;
+	}
+
+	return dbi;
+}
+
+void og_dbi_close(struct og_dbi *dbi)
+{
+	dbi_conn_close(dbi->conn);
+	dbi_shutdown_r(dbi->inst);
+	free(dbi);
+}

sources/dbi.h

@@ -0,0 +1,21 @@
+#ifndef __OG_DBI
+#define __OG_DBI
+
+#include <dbi/dbi.h>
+
+struct og_dbi_config {
+	const char	*user;
+	const char	*passwd;
+	const char	*host;
+	const char	*database;
+};
+
+struct og_dbi {
+	dbi_conn	conn;
+	dbi_inst	inst;
+};
+
+struct og_dbi *og_dbi_open(struct og_dbi_config *config);
+void og_dbi_close(struct og_dbi *db);
+
+#endif