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From: imeevma@tarantool.org
To: tarantool-patches@freelists.org, v.shpilevoy@tarantool.org
Subject: [tarantool-patches] [PATCH v7 1/6] lua: remove exceptions from function luaL_tofield()
Date: Tue, 15 Jan 2019 19:10:05 +0300	[thread overview]
Message-ID: <c2014b6203734ef0541f00cbd4dcfddf40df248f.1547565887.git.imeevma@gmail.com> (raw)
In-Reply-To: <cover.1547565887.git.imeevma@gmail.com>

Before this commit, the luaL_tofield() function threw a Lua
exception when an error occurred. This behavior has been changed
in this commit, now it sets diag_set() and returns -1 in case of
an error.

Needed for #3505
---
 src/box/lua/call.c  |   9 +++--
 src/box/lua/tuple.c |   3 +-
 src/lua/msgpack.c   |  12 ++++--
 src/lua/utils.c     | 105 ++++++++++++++++++++++++++++++----------------------
 src/lua/utils.h     |   8 +++-
 5 files changed, 83 insertions(+), 54 deletions(-)

diff --git a/src/box/lua/call.c b/src/box/lua/call.c
index 52939ae..39df05d 100644
--- a/src/box/lua/call.c
+++ b/src/box/lua/call.c
@@ -164,7 +164,8 @@ luamp_encode_call_16(lua_State *L, struct luaL_serializer *cfg,
 		 */
 		for (int i = 1; i <= nrets; ++i) {
 			struct luaL_field field;
-			luaL_tofield(L, cfg, i, &field);
+			if (luaL_tofield(L, cfg, i, &field) < 0)
+				luaT_error(L);
 			struct tuple *tuple;
 			if (field.type == MP_EXT &&
 			    (tuple = luaT_istuple(L, i)) != NULL) {
@@ -192,7 +193,8 @@ luamp_encode_call_16(lua_State *L, struct luaL_serializer *cfg,
 	 * Inspect the first result
 	 */
 	struct luaL_field root;
-	luaL_tofield(L, cfg, 1, &root);
+	if (luaL_tofield(L, cfg, 1, &root) < 0)
+		luaT_error(L);
 	struct tuple *tuple;
 	if (root.type == MP_EXT && (tuple = luaT_istuple(L, 1)) != NULL) {
 		/* `return box.tuple()` */
@@ -221,7 +223,8 @@ luamp_encode_call_16(lua_State *L, struct luaL_serializer *cfg,
 	for (uint32_t t = 1; t <= root.size; t++) {
 		lua_rawgeti(L, 1, t);
 		struct luaL_field field;
-		luaL_tofield(L, cfg, -1, &field);
+		if (luaL_tofield(L, cfg, -1, &field) < 0)
+			luaT_error(L);
 		if (field.type == MP_EXT && (tuple = luaT_istuple(L, -1))) {
 			tuple_to_mpstream(tuple, stream);
 		} else if (field.type != MP_ARRAY) {
diff --git a/src/box/lua/tuple.c b/src/box/lua/tuple.c
index 1867f81..f76d656 100644
--- a/src/box/lua/tuple.c
+++ b/src/box/lua/tuple.c
@@ -223,7 +223,8 @@ luamp_convert_key(struct lua_State *L, struct luaL_serializer *cfg,
 		return tuple_to_mpstream(tuple, stream);
 
 	struct luaL_field field;
-	luaL_tofield(L, cfg, index, &field);
+	if (luaL_tofield(L, cfg, index, &field) < 0)
+		luaT_error(L);
 	if (field.type == MP_ARRAY) {
 		lua_pushvalue(L, index);
 		luamp_encode_r(L, cfg, stream, &field, 0);
diff --git a/src/lua/msgpack.c b/src/lua/msgpack.c
index b470060..d00ade9 100644
--- a/src/lua/msgpack.c
+++ b/src/lua/msgpack.c
@@ -149,10 +149,12 @@ restart: /* used by MP_EXT */
 		lua_pushnil(L);  /* first key */
 		while (lua_next(L, top) != 0) {
 			lua_pushvalue(L, -2); /* push a copy of key to top */
-			luaL_tofield(L, cfg, lua_gettop(L), field);
+			if (luaL_tofield(L, cfg, lua_gettop(L), field) < 0)
+				luaT_error(L);
 			luamp_encode_r(L, cfg, stream, field, level + 1);
 			lua_pop(L, 1); /* pop a copy of key */
-			luaL_tofield(L, cfg, lua_gettop(L), field);
+			if (luaL_tofield(L, cfg, lua_gettop(L), field) < 0)
+				luaT_error(L);
 			luamp_encode_r(L, cfg, stream, field, level + 1);
 			lua_pop(L, 1); /* pop value */
 		}
@@ -168,7 +170,8 @@ restart: /* used by MP_EXT */
 		mpstream_encode_array(stream, size);
 		for (uint32_t i = 0; i < size; i++) {
 			lua_rawgeti(L, top, i + 1);
-			luaL_tofield(L, cfg, top + 1, field);
+			if (luaL_tofield(L, cfg, top + 1, field) < 0)
+				luaT_error(L);
 			luamp_encode_r(L, cfg, stream, field, level + 1);
 			lua_pop(L, 1);
 		}
@@ -203,7 +206,8 @@ luamp_encode(struct lua_State *L, struct luaL_serializer *cfg,
 	}
 
 	struct luaL_field field;
-	luaL_tofield(L, cfg, lua_gettop(L), &field);
+	if (luaL_tofield(L, cfg, lua_gettop(L), &field) < 0)
+		luaT_error(L);
 	enum mp_type top_type = luamp_encode_r(L, cfg, stream, &field, 0);
 
 	if (!on_top) {
diff --git a/src/lua/utils.c b/src/lua/utils.c
index 978fe61..9a9fd3a 100644
--- a/src/lua/utils.c
+++ b/src/lua/utils.c
@@ -37,6 +37,8 @@
 #include <diag.h>
 #include <fiber.h>
 
+#include "box/error.h"
+
 int luaL_nil_ref = LUA_REFNIL;
 int luaL_map_metatable_ref = LUA_REFNIL;
 int luaL_array_metatable_ref = LUA_REFNIL;
@@ -383,12 +385,13 @@ lua_field_inspect_ucdata(struct lua_State *L, struct luaL_serializer *cfg,
 		lua_pcall(L, 1, 1, 0);
 		/* replace obj with the unpacked value */
 		lua_replace(L, idx);
-		luaL_tofield(L, cfg, idx, field);
+		if (luaL_tofield(L, cfg, idx, field) < 0)
+			luaT_error(L);
 	} /* else ignore lua_gettable exceptions */
 	lua_settop(L, top); /* remove temporary objects */
 }
 
-static void
+static int
 lua_field_inspect_table(struct lua_State *L, struct luaL_serializer *cfg,
 			int idx, struct luaL_field *field)
 {
@@ -408,10 +411,11 @@ lua_field_inspect_table(struct lua_State *L, struct luaL_serializer *cfg,
 		lua_call(L, 1, 1);
 		/* replace obj with the unpacked value */
 		lua_replace(L, idx);
-		luaL_tofield(L, cfg, idx, field);
-		return;
+		return luaL_tofield(L, cfg, idx, field);
 	} else if (!lua_isstring(L, -1)) {
-		luaL_error(L, "invalid " LUAL_SERIALIZE  " value");
+		diag_set(ClientError, ER_PROC_LUA,
+			 "invalid " LUAL_SERIALIZE " value");
+		return -1;
 	}
 
 	type = lua_tostring(L, -1);
@@ -424,7 +428,7 @@ lua_field_inspect_table(struct lua_State *L, struct luaL_serializer *cfg,
 			field->compact = true;
 		lua_pop(L, 1); /* type */
 
-		return;
+		return 0;
 	} else if (strcmp(type, "map") == 0 || strcmp(type, "mapping") == 0) {
 		field->type = MP_MAP;   /* Override type */
 		field->size = luaL_maplen(L, idx);
@@ -432,9 +436,11 @@ lua_field_inspect_table(struct lua_State *L, struct luaL_serializer *cfg,
 		if (cfg->has_compact && type[3] == '\0')
 			field->compact = true;
 		lua_pop(L, 1); /* type */
-		return;
+		return 0;
 	} else {
-		luaL_error(L, "invalid " LUAL_SERIALIZE "  value");
+		diag_set(ClientError, ER_PROC_LUA,
+			 "invalid " LUAL_SERIALIZE " value");
+		return -1;
 	}
 
 skip:
@@ -456,7 +462,7 @@ skip:
 			}
 			field->type = MP_MAP;
 			field->size = size;
-			return;
+			return 0;
 		}
 		if (k > max)
 			max = k;
@@ -466,15 +472,19 @@ skip:
 	if (cfg->encode_sparse_ratio > 0 &&
 	    max > size * (uint32_t)cfg->encode_sparse_ratio &&
 	    max > (uint32_t)cfg->encode_sparse_safe) {
-		if (!cfg->encode_sparse_convert)
-			luaL_error(L, "excessively sparse array");
+		if (!cfg->encode_sparse_convert) {
+			diag_set(ClientError, ER_PROC_LUA,
+				 "excessively sparse array");
+			return -1;
+		}
 		field->type = MP_MAP;
 		field->size = size;
-		return;
+		return 0;
 	}
 
 	assert(field->type == MP_ARRAY);
 	field->size = max;
+	return 0;
 }
 
 static void
@@ -487,12 +497,13 @@ lua_field_tostring(struct lua_State *L, struct luaL_serializer *cfg, int idx,
 	lua_call(L, 1, 1);
 	lua_replace(L, idx);
 	lua_settop(L, top);
-	luaL_tofield(L, cfg, idx, field);
+	if (luaL_tofield(L, cfg, idx, field) < 0)
+		luaT_error(L);
 }
 
-void
+int
 luaL_tofield(struct lua_State *L, struct luaL_serializer *cfg, int index,
-		 struct luaL_field *field)
+	     struct luaL_field *field)
 {
 	if (index < 0)
 		index = lua_gettop(L) + index + 1;
@@ -501,10 +512,13 @@ luaL_tofield(struct lua_State *L, struct luaL_serializer *cfg, int index,
 	double intpart;
 	size_t size;
 
-#define CHECK_NUMBER(x) ({\
-	if (!isfinite(x) && !cfg->encode_invalid_numbers) {		\
-		if (!cfg->encode_invalid_as_nil)				\
-			luaL_error(L, "number must not be NaN or Inf");		\
+#define CHECK_NUMBER(x) ({							\
+	if (!isfinite(x) && !cfg->encode_invalid_numbers) {			\
+		if (!cfg->encode_invalid_as_nil) {				\
+			diag_set(ClientError, ER_PROC_LUA,			\
+				 "number must not be NaN or Inf");		\
+			return -1;						\
+		}								\
 		field->type = MP_NIL;						\
 	}})
 
@@ -525,94 +539,96 @@ luaL_tofield(struct lua_State *L, struct luaL_serializer *cfg, int index,
 			field->dval = num;
 			CHECK_NUMBER(num);
 		}
-		return;
+		break;
 	case LUA_TCDATA:
 	{
-		uint32_t ctypeid = 0;
-		void *cdata = luaL_checkcdata(L, index, &ctypeid);
+		GCcdata *cd = cdataV(L->base + index - 1);
+		void *cdata = (void *)cdataptr(cd);
+
 		int64_t ival;
-		switch (ctypeid) {
+		switch (cd->ctypeid) {
 		case CTID_BOOL:
 			field->type = MP_BOOL;
 			field->bval = *(bool*) cdata;
-			return;
+			break;
 		case CTID_CCHAR:
 		case CTID_INT8:
 			ival = *(int8_t *) cdata;
 			field->type = (ival >= 0) ? MP_UINT : MP_INT;
 			field->ival = ival;
-			return;
+			break;
 		case CTID_INT16:
 			ival = *(int16_t *) cdata;
 			field->type = (ival >= 0) ? MP_UINT : MP_INT;
 			field->ival = ival;
-			return;
+			break;
 		case CTID_INT32:
 			ival = *(int32_t *) cdata;
 			field->type = (ival >= 0) ? MP_UINT : MP_INT;
 			field->ival = ival;
-			return;
+			break;
 		case CTID_INT64:
 			ival = *(int64_t *) cdata;
 			field->type = (ival >= 0) ? MP_UINT : MP_INT;
 			field->ival = ival;
-			return;
+			break;
 		case CTID_UINT8:
 			field->type = MP_UINT;
 			field->ival = *(uint8_t *) cdata;
-			return;
+			break;
 		case CTID_UINT16:
 			field->type = MP_UINT;
 			field->ival = *(uint16_t *) cdata;
-			return;
+			break;
 		case CTID_UINT32:
 			field->type = MP_UINT;
 			field->ival = *(uint32_t *) cdata;
-			return;
+			break;
 		case CTID_UINT64:
 			field->type = MP_UINT;
 			field->ival = *(uint64_t *) cdata;
-			return;
+			break;
 		case CTID_FLOAT:
 			field->type = MP_FLOAT;
 			field->fval = *(float *) cdata;
 			CHECK_NUMBER(field->fval);
-			return;
+			break;
 		case CTID_DOUBLE:
 			field->type = MP_DOUBLE;
 			field->dval = *(double *) cdata;
 			CHECK_NUMBER(field->dval);
-			return;
+			break;
 		case CTID_P_CVOID:
 		case CTID_P_VOID:
 			if (*(void **) cdata == NULL) {
 				field->type = MP_NIL;
-				return;
+				break;
 			}
 			/* Fall through */
 		default:
 			field->type = MP_EXT;
-			return;
+			break;
 		}
-		return;
+		break;
 	}
 	case LUA_TBOOLEAN:
 		field->type = MP_BOOL;
 		field->bval = lua_toboolean(L, index);
-		return;
+		break;
 	case LUA_TNIL:
 		field->type = MP_NIL;
-		return;
+		break;
 	case LUA_TSTRING:
 		field->sval.data = lua_tolstring(L, index, &size);
 		field->sval.len = (uint32_t) size;
 		field->type = MP_STR;
-		return;
+		break;
 	case LUA_TTABLE:
 	{
 		field->compact = false;
-		lua_field_inspect_table(L, cfg, index, field);
-		return;
+		if (lua_field_inspect_table(L, cfg, index, field) < 0)
+			return -1;
+		break;
 	}
 	case LUA_TLIGHTUSERDATA:
 	case LUA_TUSERDATA:
@@ -620,14 +636,15 @@ luaL_tofield(struct lua_State *L, struct luaL_serializer *cfg, int index,
 		field->sval.len = 0;
 		if (lua_touserdata(L, index) == NULL) {
 			field->type = MP_NIL;
-			return;
+			break;
 		}
 		/* Fall through */
 	default:
 		field->type = MP_EXT;
-		return;
+		break;
 	}
 #undef CHECK_NUMBER
+	return 0;
 }
 
 void
diff --git a/src/lua/utils.h b/src/lua/utils.h
index a47e3d2..fde3514 100644
--- a/src/lua/utils.h
+++ b/src/lua/utils.h
@@ -304,8 +304,11 @@ struct luaL_field {
  * @param cfg configuration
  * @param index stack index
  * @param field conversion result
+ *
+ * @retval  0 Success.
+ * @retval -1 Error.
  */
-void
+int
 luaL_tofield(struct lua_State *L, struct luaL_serializer *cfg, int index,
 	     struct luaL_field *field);
 
@@ -345,7 +348,8 @@ static inline void
 luaL_checkfield(struct lua_State *L, struct luaL_serializer *cfg, int idx,
 		struct luaL_field *field)
 {
-	luaL_tofield(L, cfg, idx, field);
+	if (luaL_tofield(L, cfg, idx, field) < 0)
+		luaT_error(L);
 	if (field->type != MP_EXT)
 		return;
 	luaL_convertfield(L, cfg, idx, field);
-- 
2.7.4

  reply	other threads:[~2019-01-15 16:10 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-15 16:10 [tarantool-patches] [PATCH v7 0/6] sql: remove box.sql.execute imeevma
2019-01-15 16:10 ` imeevma [this message]
2019-01-16 18:25   ` [tarantool-patches] Re: [PATCH v7 1/6] lua: remove exceptions from function luaL_tofield() Vladislav Shpilevoy
2019-01-17 11:40     ` Konstantin Osipov
2019-01-17 11:41     ` Konstantin Osipov
2019-01-17 11:38   ` Konstantin Osipov
2019-01-17 13:15     ` Vladislav Shpilevoy
2019-01-15 16:10 ` [tarantool-patches] [PATCH v7 2/6] iproto: move map creation to sql_response_dump() imeevma
2019-01-15 16:10 ` [tarantool-patches] [PATCH v7 3/6] iproto: create port_sql imeevma
2019-01-16 18:25   ` [tarantool-patches] " Vladislav Shpilevoy
2019-01-15 16:10 ` [tarantool-patches] [PATCH v7 4/6] lua: create method dump_lua for port_sql imeevma
2019-01-15 16:10 ` [tarantool-patches] [PATCH v7 5/6] lua: parameter binding for new execute() imeevma
2019-01-15 16:10 ` [tarantool-patches] [PATCH v7 6/6] sql: check new box.sql.execute() imeevma

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