[tarantool-patches] [PATCH v2 1/1] schema:frommap() to create table or tuple
Kirill Shcherbatov
kshcherbatov at tarantool.org
Wed Mar 28 21:28:43 MSK 2018
Closes #3282
---
src/box/lua/schema.lua | 2 +
src/box/lua/space.cc | 100 ++++++++++++++++++++++++++++++++++++++++++
src/box/lua/tuple.c | 2 +-
src/box/lua/tuple.h | 3 ++
test/box/space_frommap.result | 76 ++++++++++++++++++++++++++++++++
5 files changed, 182 insertions(+), 1 deletion(-)
create mode 100644 test/box/space_frommap.result
diff --git a/src/box/lua/schema.lua b/src/box/lua/schema.lua
index 30c6bc6..740b885 100644
--- a/src/box/lua/schema.lua
+++ b/src/box/lua/schema.lua
@@ -1419,6 +1419,8 @@ function box.schema.space.bless(space)
end
builtin.space_run_triggers(s, yesno)
end
+ space_mt.frommap = box.internal.space.frommap
+ space_mt._ptr = box.internal.space._ptr
space_mt.__index = space_mt
setmetatable(space, space_mt)
diff --git a/src/box/lua/space.cc b/src/box/lua/space.cc
index 29a9aca..a8cfb14 100644
--- a/src/box/lua/space.cc
+++ b/src/box/lua/space.cc
@@ -32,6 +32,7 @@
#include "box/lua/tuple.h"
#include "lua/utils.h"
#include "lua/trigger.h"
+#include "box/schema.h"
extern "C" {
#include <lua.h>
@@ -174,6 +175,16 @@ lbox_fillspace(struct lua_State *L, struct space *space, int i)
lua_pushstring(L, space->def->engine_name);
lua_settable(L, i);
+ /* space.schema_version */
+ lua_pushstring(L, "schema_version");
+ luaL_pushuint64(L, box_schema_version());
+ lua_settable(L, i);
+
+ /* space._space */
+ lua_pushstring(L, "_space");
+ lua_pushlightuserdata(L, space);
+ lua_settable(L, i);
+
lua_pushstring(L, "enabled");
lua_pushboolean(L, space_index(space, 0) != 0);
lua_settable(L, i);
@@ -386,6 +397,87 @@ static struct trigger on_alter_space_in_lua = {
RLIST_LINK_INITIALIZER, box_lua_space_new_or_delete, NULL, NULL
};
+static int
+lbox_space_ptr_cached(struct lua_State *L)
+{
+ if (lua_gettop(L) < 1 || !lua_istable(L, 1))
+ luaL_error(L, "Usage: space:_ptr_cached()");
+
+ // take care about stack to call this function in frommap directly
+ lua_getfield(L, 1, "schema_version");
+ uint64_t schema_version = luaL_touint64(L, -1);
+ lua_pop(L, 1);
+ uint64_t global_shema_version = box_schema_version();
+
+ void *space = nullptr;
+ if (schema_version == global_shema_version) {
+ lua_getfield(L, 1, "_space");
+ space = (void *)lua_topointer(L, -1);
+ lua_pop(L, 1);
+ } else {
+ lua_getfield(L, 1, "id");
+ uint32_t id = luaL_touint64(L, -1);
+ lua_pop(L, 1);
+ space = space_by_id(id);
+
+ luaL_pushuint64(L, global_shema_version);
+ lua_setfield(L, 1, "schema_version");
+
+ lua_pushlightuserdata(L, space);
+ lua_setfield(L, 1, "_space");
+ }
+
+ lua_pushlightuserdata(L, space);
+ return 1;
+}
+
+static int
+lbox_space_frommap(struct lua_State *L)
+{
+ int res = 0;
+ struct tuple_dictionary *dict = nullptr;
+ struct space *space = nullptr;
+ int argc = lua_gettop(L);
+ bool tuple = false;
+ if (argc < 2 || argc > 3 || !lua_istable(L, 2))
+ goto error;
+ if (argc == 3) {
+ if (!lua_istable(L, 3))
+ goto error;
+ lua_getfield(L, 3, "tuple");
+ if (!lua_isboolean(L, -1) && !lua_isnil(L, -1))
+ goto error;
+ tuple = lua_toboolean(L, -1);
+ }
+
+ res = lbox_space_ptr_cached(L);
+ space = (struct space *)lua_topointer(L, -1);
+ lua_pop(L, res);
+
+ dict = space->format->dict;
+ lua_createtable(L, space->def->field_count, 0);
+
+ lua_pushnil(L);
+ while (lua_next(L, 2) != 0) {
+ uint32_t fieldno;
+ size_t key_len;
+ const char *key = lua_tolstring(L, -2, &key_len);
+ uint32_t key_hash = lua_hashstring(L, -2);
+ if (tuple_fieldno_by_name(dict, key, key_len, key_hash, &fieldno))
+ luaL_error(L, "Unknown field '%s'", key);
+ lua_rawseti(L, -3, fieldno+1);
+ }
+ if (!tuple)
+ return 1;
+
+ lua_replace(L, 1);
+ lua_settop(L, 1);
+ return lbox_tuple_new(L);
+error:
+ luaL_error(L, "Usage: space:frommap(map, opts)");
+ return 1;
+}
+
void
box_lua_space_init(struct lua_State *L)
{
@@ -464,4 +556,12 @@ box_lua_space_init(struct lua_State *L)
lua_pushnumber(L, VCLOCK_MAX);
lua_setfield(L, -2, "REPLICA_MAX");
lua_pop(L, 2); /* box, schema */
+
+ static const struct luaL_Reg space_internal_lib[] = {
+ {"frommap", lbox_space_frommap},
+ {"_ptr", lbox_space_ptr_cached},
+ {NULL, NULL}
+ };
+ luaL_register(L, "box.internal.space", space_internal_lib);
+ lua_pop(L, 1);
}
diff --git a/src/box/lua/tuple.c b/src/box/lua/tuple.c
index 7ca4299..92a7185 100644
--- a/src/box/lua/tuple.c
+++ b/src/box/lua/tuple.c
@@ -90,7 +90,7 @@ luaT_istuple(struct lua_State *L, int narg)
return *(struct tuple **) data;
}
-static int
+int
lbox_tuple_new(lua_State *L)
{
int argc = lua_gettop(L);
diff --git a/src/box/lua/tuple.h b/src/box/lua/tuple.h
index 0965644..5d7062e 100644
--- a/src/box/lua/tuple.h
+++ b/src/box/lua/tuple.h
@@ -66,6 +66,9 @@ luaT_istuple(struct lua_State *L, int idx);
/** \endcond public */
+int
+lbox_tuple_new(struct lua_State *L);
+
static inline int
luaT_pushtupleornil(struct lua_State *L, struct tuple *tuple)
{
diff --git a/test/box/space_frommap.result b/test/box/space_frommap.result
new file mode 100644
index 0000000..884d78c
--- /dev/null
+++ b/test/box/space_frommap.result
@@ -0,0 +1,76 @@
+-- box.tuple test
+env = require('test_run')
+---
+...
+test_run = env.new()
+---
+...
+test_run:cmd("push filter ".."'\\.lua.*:[0-9]+: ' to '.lua...\"]:<line>: '")
+---
+- true
+...
+format = {}
+---
+...
+format[1] = {name = 'aaa', type = 'unsigned'}
+---
+...
+format[2] = {name = 'bbb', type = 'unsigned'}
+---
+...
+format[3] = {name = 'ccc', type = 'unsigned'}
+---
+...
+format[4] = {name = 'ddd', type = 'unsigned'}
+---
+...
+subscriber = box.schema.space.create('subscriber', {format = format})
+---
+...
+subscriber:frommap({ddd = 1, aaa = 2, ccc = 3, bbb = 4})
+---
+- - 2
+ - 4
+ - 3
+ - 1
+...
+subscriber:frommap({ddd = 1, aaa = 2, bbb = 3})
+---
+- - 2
+ - 3
+ - null
+ - 1
+...
+subscriber:frommap({ddd = 1, aaa = 2, ccc = 3, eee = 4})
+---
+- error: Unknown field 'eee'
+...
+subscriber:frommap()
+---
+- error: 'Usage: space:frommap(map, opts)'
+...
+subscriber:frommap({})
+---
+- []
+...
+subscriber:frommap({ddd = 1, aaa = 2, ccc = 3, bbb = 4}, {tuple = true})
+---
+- [2, 4, 3, 1]
+...
+subscriber:frommap({ddd = 1, aaa = 2, ccc = 3, bbb = 4}, {tuple = false})
+---
+- - 2
+ - 4
+ - 3
+ - 1
+...
+subscriber:frommap({ddd = 1, aaa = 2, ccc = 3, bbb = 4}, {dummy = true})
+---
+- - 2
+ - 4
+ - 3
+ - 1
+...
+subscriber:drop()
+---
+...
--
2.7.4
More information about the Tarantool-patches
mailing list