proxy: embed routelib

`-o proxy_config=routelib` will use the binary-distributed routelib
library

Makefile.am

@@ -68,7 +68,8 @@ memcached_SOURCES += proto_proxy.c proto_proxy.h vendor/mcmc/mcmc.h \
 					 proxy_config.c proxy_ring_hash.c \
 					 proxy_internal.c \
 					 proxy_tls.c proxy_tls.h \
-					 md5.c md5.h
+					 md5.c md5.h \
+					 vendor/routelib/routelib.h
 endif
 
 if ENABLE_EXTSTORE
@@ -151,6 +152,7 @@ EXTRA_DIST = doc scripts t memcached.spec memcached_dtrace.d version.m4 README.m
 EXTRA_DIST += vendor/Makefile vendor/lua/doc/* vendor/lua/Makefile vendor/lua/README
 EXTRA_DIST += vendor/lua/src/*.c vendor/lua/src/*.h vendor/lua/src/Makefile
 EXTRA_DIST += vendor/mcmc/LICENSE vendor/mcmc/Makefile vendor/mcmc/README.md vendor/mcmc/*.c vendor/mcmc/*.h
+EXTRA_DIST += vendor/routelib/*.h
 
 if ENABLE_PROXY
 SUBDIRS += vendor

proxy_config.c

@@ -3,6 +3,7 @@
 // TODO (v2): move worker thread related code back out of here.
 
 #include "proxy.h"
+#include "vendor/routelib/routelib.h"
 
 // not using queue.h becuase those require specific storage for HEAD.
 // it's not possible to have the HEAD simply be in the proxy context because
@@ -455,7 +456,11 @@ static int proxy_load_files(proxy_ctx_t *ctx) {
         memset(db->buf, 0, db->size);
         db->used = 0;
 
-        res = luaL_loadfile(L, db->fname);
+        if (strcmp(db->fname, "routelib") == 0) {
+            res = luaL_loadbuffer(L, routelib_lua, routelib_lua_len, "routelib");
+        } else {
+            res = luaL_loadfile(L, db->fname);
+        }
         if (res != LUA_OK) {
             fprintf(stderr, "ERROR: Failed to load proxy_startfile: %s\n", lua_tostring(L, -1));
             return -1;

vendor/routelib/README

@@ -0,0 +1,3 @@
+generated by:
+xxd -i routelib.lua > routelib.h
+then changing unsigned char to just char.