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-rw-r--r--src/SQLite/lsqlite3.c2175
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diff --git a/src/SQLite/lsqlite3.c b/src/SQLite/lsqlite3.c
deleted file mode 100644
index 4c81b5878..000000000
--- a/src/SQLite/lsqlite3.c
+++ /dev/null
@@ -1,2175 +0,0 @@
-/************************************************************************
-* lsqlite3 *
-* Copyright (C) 2002-2013 Tiago Dionizio, Doug Currie *
-* All rights reserved. *
-* Author : Tiago Dionizio <tiago.dionizio@ist.utl.pt> *
-* Author : Doug Currie <doug.currie@alum.mit.edu> *
-* Library : lsqlite3 - a SQLite 3 database binding for Lua 5 *
-* *
-* Permission is hereby granted, free of charge, to any person obtaining *
-* a copy of this software and associated documentation files (the *
-* "Software"), to deal in the Software without restriction, including *
-* without limitation the rights to use, copy, modify, merge, publish, *
-* distribute, sublicense, and/or sell copies of the Software, and to *
-* permit persons to whom the Software is furnished to do so, subject to *
-* the following conditions: *
-* *
-* The above copyright notice and this permission notice shall be *
-* included in all copies or substantial portions of the Software. *
-* *
-* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, *
-* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
-* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*
-* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY *
-* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, *
-* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE *
-* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
-************************************************************************/
-// Slightly modified by _Xoft to compile in MSVC
-
-
-
-
-// 2013_04_07 _X: Added the following #define-s so that MSVC doesn't complain about non-secure stuff:
-#define _CRT_SECURE_NO_WARNINGS
-#ifdef __cplusplus
-extern "C" {
-#endif // __cplusplus
-
-
-
-
-#include <stdlib.h>
-#include <string.h>
-#include <assert.h>
-
-#define LUA_LIB
-#include "lua.h"
-#include "lauxlib.h"
-
-#if LUA_VERSION_NUM > 501
-//
-// Lua 5.2
-//
-#define lua_strlen lua_rawlen
-// luaL_typerror always used with arg at ndx == NULL
-#define luaL_typerror(L,ndx,str) luaL_error(L,"bad argument %d (%s expected, got nil)",ndx,str)
-// luaL_register used once, so below expansion is OK for this case
-#define luaL_register(L,name,reg) lua_newtable(L);luaL_setfuncs(L,reg,0)
-// luaL_openlib always used with name == NULL
-#define luaL_openlib(L,name,reg,nup) luaL_setfuncs(L,reg,nup)
-#endif
-
-#include "sqlite3.h"
-
-/* compile time features */
-#if !defined(SQLITE_OMIT_PROGRESS_CALLBACK)
- #define SQLITE_OMIT_PROGRESS_CALLBACK 0
-#endif
-#if !defined(LSQLITE_OMIT_UPDATE_HOOK)
- #define LSQLITE_OMIT_UPDATE_HOOK 0
-#endif
-
-typedef struct sdb sdb;
-typedef struct sdb_vm sdb_vm;
-typedef struct sdb_func sdb_func;
-
-/* to use as C user data so i know what function sqlite is calling */
-struct sdb_func {
- /* references to associated lua values */
- int fn_step;
- int fn_finalize;
- int udata;
-
- sdb *db;
- char aggregate;
-
- sdb_func *next;
-};
-
-/* information about database */
-struct sdb {
- /* associated lua state */
- lua_State *L;
- /* sqlite database handle */
- sqlite3 *db;
-
- /* sql functions stack usage */
- sdb_func *func; /* top SQL function being called */
-
- /* references */
- int busy_cb; /* busy callback */
- int busy_udata;
-
- int progress_cb; /* progress handler */
- int progress_udata;
-
- int trace_cb; /* trace callback */
- int trace_udata;
-
-#if !defined(LSQLITE_OMIT_UPDATE_HOOK) || !LSQLITE_OMIT_UPDATE_HOOK
-
- int update_hook_cb; /* update_hook callback */
- int update_hook_udata;
-
- int commit_hook_cb; /* commit_hook callback */
- int commit_hook_udata;
-
- int rollback_hook_cb; /* rollback_hook callback */
- int rollback_hook_udata;
-
-#endif
-};
-
-static const char *sqlite_meta = ":sqlite3";
-static const char *sqlite_vm_meta = ":sqlite3:vm";
-static const char *sqlite_ctx_meta = ":sqlite3:ctx";
-static int sqlite_ctx_meta_ref;
-
-/*
-** =======================================================
-** Database Virtual Machine Operations
-** =======================================================
-*/
-
-static void vm_push_column(lua_State *L, sqlite3_stmt *vm, int idx) {
- switch (sqlite3_column_type(vm, idx)) {
- case SQLITE_INTEGER:
- {
- sqlite_int64 i64 = sqlite3_column_int64(vm, idx);
- lua_Number n = (lua_Number)i64;
- if (n == i64)
- lua_pushnumber(L, n);
- else
- lua_pushlstring(L, (const char*)sqlite3_column_text(vm, idx), sqlite3_column_bytes(vm, idx));
- }
- break;
- case SQLITE_FLOAT:
- lua_pushnumber(L, sqlite3_column_double(vm, idx));
- break;
- case SQLITE_TEXT:
- lua_pushlstring(L, (const char*)sqlite3_column_text(vm, idx), sqlite3_column_bytes(vm, idx));
- break;
- case SQLITE_BLOB:
- lua_pushlstring(L, sqlite3_column_blob(vm, idx), sqlite3_column_bytes(vm, idx));
- break;
- case SQLITE_NULL:
- lua_pushnil(L);
- break;
- default:
- lua_pushnil(L);
- break;
- }
-}
-
-/* virtual machine information */
-struct sdb_vm {
- sdb *db; /* associated database handle */
- sqlite3_stmt *vm; /* virtual machine */
-
- /* sqlite3_step info */
- int columns; /* number of columns in result */
- char has_values; /* true when step succeeds */
-
- char temp; /* temporary vm used in db:rows */
-};
-
-/* called with sql text on the lua stack */
-static sdb_vm *newvm(lua_State *L, sdb *db) {
- sdb_vm *svm = (sdb_vm*)lua_newuserdata(L, sizeof(sdb_vm));
-
- luaL_getmetatable(L, sqlite_vm_meta);
- lua_setmetatable(L, -2); /* set metatable */
-
- svm->db = db;
- svm->columns = 0;
- svm->has_values = 0;
- svm->vm = NULL;
- svm->temp = 0;
-
- /* add an entry on the database table: svm -> sql text */
- lua_pushlightuserdata(L, db);
- lua_rawget(L, LUA_REGISTRYINDEX);
- lua_pushlightuserdata(L, svm);
- lua_pushvalue(L, -4); /* the sql text */
- lua_rawset(L, -3);
- lua_pop(L, 1);
-
- return svm;
-}
-
-static int cleanupvm(lua_State *L, sdb_vm *svm) {
- /* remove entry in database table - no harm if not present in the table */
- lua_pushlightuserdata(L, svm->db);
- lua_rawget(L, LUA_REGISTRYINDEX);
- lua_pushlightuserdata(L, svm);
- lua_pushnil(L);
- lua_rawset(L, -3);
- lua_pop(L, 1);
-
- svm->columns = 0;
- svm->has_values = 0;
-
- if (!svm->vm) return 0;
-
- lua_pushnumber(L, sqlite3_finalize(svm->vm));
- svm->vm = NULL;
- return 1;
-}
-
-static int stepvm(lua_State *L, sdb_vm *svm) {
- int result;
- int loop_limit = 3;
- while ( loop_limit-- ) {
- result = sqlite3_step(svm->vm);
- if ( result==SQLITE_ERROR ) {
- result = sqlite3_reset (svm->vm);
- }
- if ( result==SQLITE_SCHEMA ) {
- sqlite3_stmt *vn;
- const char *sql;
- /* recover sql text */
- lua_pushlightuserdata(L, svm->db);
- lua_rawget(L, LUA_REGISTRYINDEX);
- lua_pushlightuserdata(L, svm);
- lua_rawget(L, -2); /* sql text */
- sql = luaL_checkstring(L, -1);
- /* re-prepare */
- result = sqlite3_prepare(svm->db->db, sql, -1, &vn, NULL);
- if (result != SQLITE_OK) break;
- sqlite3_transfer_bindings(svm->vm, vn);
- sqlite3_finalize(svm->vm);
- svm->vm = vn;
- lua_pop(L,2);
- } else {
- break;
- }
- }
- return result;
-}
-
-static sdb_vm *lsqlite_getvm(lua_State *L, int index) {
- sdb_vm *svm = (sdb_vm*)luaL_checkudata(L, index, sqlite_vm_meta);
- if (svm == NULL) luaL_argerror(L, index, "bad sqlite virtual machine");
- return svm;
-}
-
-static sdb_vm *lsqlite_checkvm(lua_State *L, int index) {
- sdb_vm *svm = lsqlite_getvm(L, index);
- if (svm->vm == NULL) luaL_argerror(L, index, "attempt to use closed sqlite virtual machine");
- return svm;
-}
-
-static int dbvm_isopen(lua_State *L) {
- sdb_vm *svm = lsqlite_getvm(L, 1);
- lua_pushboolean(L, svm->vm != NULL ? 1 : 0);
- return 1;
-}
-
-static int dbvm_tostring(lua_State *L) {
- char buff[39];
- sdb_vm *svm = lsqlite_getvm(L, 1);
- if (svm->vm == NULL)
- strcpy(buff, "closed");
- else
- sprintf(buff, "%p", svm);
- lua_pushfstring(L, "sqlite virtual machine (%s)", buff);
- return 1;
-}
-
-static int dbvm_gc(lua_State *L) {
- sdb_vm *svm = lsqlite_getvm(L, 1);
- if (svm->vm != NULL) /* ignore closed vms */
- cleanupvm(L, svm);
- return 0;
-}
-
-static int dbvm_step(lua_State *L) {
- int result;
- sdb_vm *svm = lsqlite_checkvm(L, 1);
-
- result = stepvm(L, svm);
- svm->has_values = result == SQLITE_ROW ? 1 : 0;
- svm->columns = sqlite3_data_count(svm->vm);
-
- lua_pushnumber(L, result);
- return 1;
-}
-
-static int dbvm_finalize(lua_State *L) {
- sdb_vm *svm = lsqlite_checkvm(L, 1);
- return cleanupvm(L, svm);
-}
-
-static int dbvm_reset(lua_State *L) {
- sdb_vm *svm = lsqlite_checkvm(L, 1);
- sqlite3_reset(svm->vm);
- lua_pushnumber(L, sqlite3_errcode(svm->db->db));
- return 1;
-}
-
-static void dbvm_check_contents(lua_State *L, sdb_vm *svm) {
- if (!svm->has_values) {
- luaL_error(L, "misuse of function");
- }
-}
-
-static void dbvm_check_index(lua_State *L, sdb_vm *svm, int index) {
- if (index < 0 || index >= svm->columns) {
- luaL_error(L, "index out of range [0..%d]", svm->columns - 1);
- }
-}
-
-static void dbvm_check_bind_index(lua_State *L, sdb_vm *svm, int index) {
- if (index < 1 || index > sqlite3_bind_parameter_count(svm->vm)) {
- luaL_error(L, "bind index out of range [1..%d]", sqlite3_bind_parameter_count(svm->vm));
- }
-}
-
-/*
-** =======================================================
-** Virtual Machine - generic info
-** =======================================================
-*/
-static int dbvm_columns(lua_State *L) {
- sdb_vm *svm = lsqlite_checkvm(L, 1);
- lua_pushnumber(L, sqlite3_column_count(svm->vm));
- return 1;
-}
-
-/*
-** =======================================================
-** Virtual Machine - getters
-** =======================================================
-*/
-
-static int dbvm_get_value(lua_State *L) {
- sdb_vm *svm = lsqlite_checkvm(L, 1);
- int index = luaL_checkint(L, 2);
- dbvm_check_contents(L, svm);
- dbvm_check_index(L, svm, index);
- vm_push_column(L, svm->vm, index);
- return 1;
-}
-
-static int dbvm_get_name(lua_State *L) {
- sdb_vm *svm = lsqlite_checkvm(L, 1);
- int index = (int)luaL_checknumber(L, 2);
- dbvm_check_index(L, svm, index);
- lua_pushstring(L, sqlite3_column_name(svm->vm, index));
- return 1;
-}
-
-static int dbvm_get_type(lua_State *L) {
- sdb_vm *svm = lsqlite_checkvm(L, 1);
- int index = (int)luaL_checknumber(L, 2);
- dbvm_check_index(L, svm, index);
- lua_pushstring(L, sqlite3_column_decltype(svm->vm, index));
- return 1;
-}
-
-static int dbvm_get_values(lua_State *L) {
- sdb_vm *svm = lsqlite_checkvm(L, 1);
- sqlite3_stmt *vm = svm->vm;
- int columns = svm->columns;
- int n;
- dbvm_check_contents(L, svm);
-
- lua_newtable(L);
- for (n = 0; n < columns;) {
- vm_push_column(L, vm, n++);
- lua_rawseti(L, -2, n);
- }
- return 1;
-}
-
-static int dbvm_get_names(lua_State *L) {
- sdb_vm *svm = lsqlite_checkvm(L, 1);
- sqlite3_stmt *vm = svm->vm;
- int columns = sqlite3_column_count(vm); /* valid as soon as statement prepared */
- int n;
-
- lua_newtable(L);
- for (n = 0; n < columns;) {
- lua_pushstring(L, sqlite3_column_name(vm, n++));
- lua_rawseti(L, -2, n);
- }
- return 1;
-}
-
-static int dbvm_get_types(lua_State *L) {
- sdb_vm *svm = lsqlite_checkvm(L, 1);
- sqlite3_stmt *vm = svm->vm;
- int columns = sqlite3_column_count(vm); /* valid as soon as statement prepared */
- int n;
-
- lua_newtable(L);
- for (n = 0; n < columns;) {
- lua_pushstring(L, sqlite3_column_decltype(vm, n++));
- lua_rawseti(L, -2, n);
- }
- return 1;
-}
-
-static int dbvm_get_uvalues(lua_State *L) {
- sdb_vm *svm = lsqlite_checkvm(L, 1);
- sqlite3_stmt *vm = svm->vm;
- int columns = svm->columns;
- int n;
- dbvm_check_contents(L, svm);
-
- lua_checkstack(L, columns);
- for (n = 0; n < columns; ++n)
- vm_push_column(L, vm, n);
- return columns;
-}
-
-static int dbvm_get_unames(lua_State *L) {
- sdb_vm *svm = lsqlite_checkvm(L, 1);
- sqlite3_stmt *vm = svm->vm;
- int columns = sqlite3_column_count(vm); /* valid as soon as statement prepared */
- int n;
-
- lua_checkstack(L, columns);
- for (n = 0; n < columns; ++n)
- lua_pushstring(L, sqlite3_column_name(vm, n));
- return columns;
-}
-
-static int dbvm_get_utypes(lua_State *L) {
- sdb_vm *svm = lsqlite_checkvm(L, 1);
- sqlite3_stmt *vm = svm->vm;
- int columns = sqlite3_column_count(vm); /* valid as soon as statement prepared */
- int n;
-
- lua_checkstack(L, columns);
- for (n = 0; n < columns; ++n)
- lua_pushstring(L, sqlite3_column_decltype(vm, n));
- return columns;
-}
-
-static int dbvm_get_named_values(lua_State *L) {
- sdb_vm *svm = lsqlite_checkvm(L, 1);
- sqlite3_stmt *vm = svm->vm;
- int columns = svm->columns;
- int n;
- dbvm_check_contents(L, svm);
-
- lua_newtable(L);
- for (n = 0; n < columns; ++n) {
- lua_pushstring(L, sqlite3_column_name(vm, n));
- vm_push_column(L, vm, n);
- lua_rawset(L, -3);
- }
- return 1;
-}
-
-static int dbvm_get_named_types(lua_State *L) {
- sdb_vm *svm = lsqlite_checkvm(L, 1);
- sqlite3_stmt *vm = svm->vm;
- int columns = sqlite3_column_count(vm);
- int n;
-
- lua_newtable(L);
- for (n = 0; n < columns; ++n) {
- lua_pushstring(L, sqlite3_column_name(vm, n));
- lua_pushstring(L, sqlite3_column_decltype(vm, n));
- lua_rawset(L, -3);
- }
- return 1;
-}
-
-/*
-** =======================================================
-** Virtual Machine - Bind
-** =======================================================
-*/
-
-static int dbvm_bind_index(lua_State *L, sqlite3_stmt *vm, int index, int lindex) {
- switch (lua_type(L, lindex)) {
- case LUA_TSTRING:
- return sqlite3_bind_text(vm, index, lua_tostring(L, lindex), lua_strlen(L, lindex), SQLITE_TRANSIENT);
- case LUA_TNUMBER:
- return sqlite3_bind_double(vm, index, lua_tonumber(L, lindex));
- case LUA_TBOOLEAN:
- return sqlite3_bind_int(vm, index, lua_toboolean(L, lindex) ? 1 : 0);
- case LUA_TNONE:
- case LUA_TNIL:
- return sqlite3_bind_null(vm, index);
- default:
- luaL_error(L, "index (%d) - invalid data type for bind (%s)", index, lua_typename(L, lua_type(L, lindex)));
- return SQLITE_MISUSE; /*!*/
- }
-}
-
-
-static int dbvm_bind_parameter_count(lua_State *L) {
- sdb_vm *svm = lsqlite_checkvm(L, 1);
- lua_pushnumber(L, sqlite3_bind_parameter_count(svm->vm));
- return 1;
-}
-
-static int dbvm_bind_parameter_name(lua_State *L) {
- sdb_vm *svm = lsqlite_checkvm(L, 1);
- int index = (int)luaL_checknumber(L, 2);
- dbvm_check_bind_index(L, svm, index);
- lua_pushstring(L, sqlite3_bind_parameter_name(svm->vm, index));
- return 1;
-}
-
-static int dbvm_bind(lua_State *L) {
- sdb_vm *svm = lsqlite_checkvm(L, 1);
- sqlite3_stmt *vm = svm->vm;
- int index = luaL_checkint(L, 2);
- int result;
-
- dbvm_check_bind_index(L, svm, index);
- result = dbvm_bind_index(L, vm, index, 3);
-
- lua_pushnumber(L, result);
- return 1;
-}
-
-static int dbvm_bind_blob(lua_State *L) {
- sdb_vm *svm = lsqlite_checkvm(L, 1);
- int index = luaL_checkint(L, 2);
- const char *value = luaL_checkstring(L, 3);
- int len = lua_strlen(L, 3);
-
- lua_pushnumber(L, sqlite3_bind_blob(svm->vm, index, value, len, SQLITE_TRANSIENT));
- return 1;
-}
-
-static int dbvm_bind_values(lua_State *L) {
- sdb_vm *svm = lsqlite_checkvm(L, 1);
- sqlite3_stmt *vm = svm->vm;
- int top = lua_gettop(L);
- int result, n;
-
- if (top - 1 != sqlite3_bind_parameter_count(vm))
- luaL_error(L,
- "incorrect number of parameters to bind (%d given, %d to bind)",
- top - 1,
- sqlite3_bind_parameter_count(vm)
- );
-
- for (n = 2; n <= top; ++n) {
- if ((result = dbvm_bind_index(L, vm, n - 1, n)) != SQLITE_OK) {
- lua_pushnumber(L, result);
- return 1;
- }
- }
-
- lua_pushnumber(L, SQLITE_OK);
- return 1;
-}
-
-static int dbvm_bind_names(lua_State *L) {
- sdb_vm *svm = lsqlite_checkvm(L, 1);
- sqlite3_stmt *vm = svm->vm;
- int count = sqlite3_bind_parameter_count(vm);
- const char *name;
- int result, n;
- luaL_checktype(L, 2, LUA_TTABLE);
-
- for (n = 1; n <= count; ++n) {
- name = sqlite3_bind_parameter_name(vm, n);
- if (name && (name[0] == ':' || name[0] == '$')) {
- lua_pushstring(L, ++name);
- lua_gettable(L, 2);
- result = dbvm_bind_index(L, vm, n, -1);
- lua_pop(L, 1);
- }
- else {
- lua_pushnumber(L, n);
- lua_gettable(L, 2);
- result = dbvm_bind_index(L, vm, n, -1);
- lua_pop(L, 1);
- }
-
- if (result != SQLITE_OK) {
- lua_pushnumber(L, result);
- return 1;
- }
- }
-
- lua_pushnumber(L, SQLITE_OK);
- return 1;
-}
-
-/*
-** =======================================================
-** Database (internal management)
-** =======================================================
-*/
-
-/*
-** When creating database handles, always creates a `closed' database handle
-** before opening the actual database; so, if there is a memory error, the
-** database is not left opened.
-**
-** Creates a new 'table' and leaves it in the stack
-*/
-static sdb *newdb (lua_State *L) {
- sdb *db = (sdb*)lua_newuserdata(L, sizeof(sdb));
- db->L = L;
- db->db = NULL; /* database handle is currently `closed' */
- db->func = NULL;
-
- db->busy_cb =
- db->busy_udata =
- db->progress_cb =
- db->progress_udata =
- db->trace_cb =
- db->trace_udata =
-#if !defined(LSQLITE_OMIT_UPDATE_HOOK) || !LSQLITE_OMIT_UPDATE_HOOK
- db->update_hook_cb =
- db->update_hook_udata =
- db->commit_hook_cb =
- db->commit_hook_udata =
- db->rollback_hook_cb =
- db->rollback_hook_udata =
-#endif
- LUA_NOREF;
-
- luaL_getmetatable(L, sqlite_meta);
- lua_setmetatable(L, -2); /* set metatable */
-
- /* to keep track of 'open' virtual machines */
- lua_pushlightuserdata(L, db);
- lua_newtable(L);
- lua_rawset(L, LUA_REGISTRYINDEX);
-
- return db;
-}
-
-static int cleanupdb(lua_State *L, sdb *db) {
- sdb_func *func;
- sdb_func *func_next;
- int top;
- int result;
-
- /* free associated virtual machines */
- lua_pushlightuserdata(L, db);
- lua_rawget(L, LUA_REGISTRYINDEX);
-
- /* close all used handles */
- top = lua_gettop(L);
- lua_pushnil(L);
- while (lua_next(L, -2)) {
- sdb_vm *svm = lua_touserdata(L, -2); /* key: vm; val: sql text */
- cleanupvm(L, svm);
-
- lua_settop(L, top);
- lua_pushnil(L);
- }
-
- lua_pop(L, 1); /* pop vm table */
-
- /* remove entry in lua registry table */
- lua_pushlightuserdata(L, db);
- lua_pushnil(L);
- lua_rawset(L, LUA_REGISTRYINDEX);
-
- /* 'free' all references */
- luaL_unref(L, LUA_REGISTRYINDEX, db->busy_cb);
- luaL_unref(L, LUA_REGISTRYINDEX, db->busy_udata);
- luaL_unref(L, LUA_REGISTRYINDEX, db->progress_cb);
- luaL_unref(L, LUA_REGISTRYINDEX, db->progress_udata);
- luaL_unref(L, LUA_REGISTRYINDEX, db->trace_cb);
- luaL_unref(L, LUA_REGISTRYINDEX, db->trace_udata);
-#if !defined(LSQLITE_OMIT_UPDATE_HOOK) || !LSQLITE_OMIT_UPDATE_HOOK
- luaL_unref(L, LUA_REGISTRYINDEX, db->update_hook_cb);
- luaL_unref(L, LUA_REGISTRYINDEX, db->update_hook_udata);
- luaL_unref(L, LUA_REGISTRYINDEX, db->commit_hook_cb);
- luaL_unref(L, LUA_REGISTRYINDEX, db->commit_hook_udata);
- luaL_unref(L, LUA_REGISTRYINDEX, db->rollback_hook_cb);
- luaL_unref(L, LUA_REGISTRYINDEX, db->rollback_hook_udata);
-#endif
-
- /* close database */
- result = sqlite3_close(db->db);
- db->db = NULL;
-
- /* free associated memory with created functions */
- func = db->func;
- while (func) {
- func_next = func->next;
- luaL_unref(L, LUA_REGISTRYINDEX, func->fn_step);
- luaL_unref(L, LUA_REGISTRYINDEX, func->fn_finalize);
- luaL_unref(L, LUA_REGISTRYINDEX, func->udata);
- free(func);
- func = func_next;
- }
- db->func = NULL;
- return result;
-}
-
-static sdb *lsqlite_getdb(lua_State *L, int index) {
- sdb *db = (sdb*)luaL_checkudata(L, index, sqlite_meta);
- if (db == NULL) luaL_typerror(L, index, "sqlite database");
- return db;
-}
-
-static sdb *lsqlite_checkdb(lua_State *L, int index) {
- sdb *db = lsqlite_getdb(L, index);
- if (db->db == NULL) luaL_argerror(L, index, "attempt to use closed sqlite database");
- return db;
-}
-
-
-/*
-** =======================================================
-** User Defined Functions - Context Methods
-** =======================================================
-*/
-typedef struct {
- sqlite3_context *ctx;
- int ud;
-} lcontext;
-
-static lcontext *lsqlite_make_context(lua_State *L) {
- lcontext *ctx = (lcontext*)lua_newuserdata(L, sizeof(lcontext));
- lua_rawgeti(L, LUA_REGISTRYINDEX, sqlite_ctx_meta_ref);
- lua_setmetatable(L, -2);
- ctx->ctx = NULL;
- ctx->ud = LUA_NOREF;
- return ctx;
-}
-
-static lcontext *lsqlite_getcontext(lua_State *L, int index) {
- lcontext *ctx = (lcontext*)luaL_checkudata(L, index, sqlite_ctx_meta);
- if (ctx == NULL) luaL_typerror(L, index, "sqlite context");
- return ctx;
-}
-
-static lcontext *lsqlite_checkcontext(lua_State *L, int index) {
- lcontext *ctx = lsqlite_getcontext(L, index);
- if (ctx->ctx == NULL) luaL_argerror(L, index, "invalid sqlite context");
- return ctx;
-}
-
-static int lcontext_tostring(lua_State *L) {
- char buff[39];
- lcontext *ctx = lsqlite_getcontext(L, 1);
- if (ctx->ctx == NULL)
- strcpy(buff, "closed");
- else
- sprintf(buff, "%p", ctx->ctx);
- lua_pushfstring(L, "sqlite function context (%s)", buff);
- return 1;
-}
-
-static void lcontext_check_aggregate(lua_State *L, lcontext *ctx) {
- sdb_func *func = (sdb_func*)sqlite3_user_data(ctx->ctx);
- if (!func->aggregate) {
- luaL_error(L, "attempt to call aggregate method from scalar function");
- }
-}
-
-static int lcontext_user_data(lua_State *L) {
- lcontext *ctx = lsqlite_checkcontext(L, 1);
- sdb_func *func = (sdb_func*)sqlite3_user_data(ctx->ctx);
- lua_rawgeti(L, LUA_REGISTRYINDEX, func->udata);
- return 1;
-}
-
-static int lcontext_get_aggregate_context(lua_State *L) {
- lcontext *ctx = lsqlite_checkcontext(L, 1);
- lcontext_check_aggregate(L, ctx);
- lua_rawgeti(L, LUA_REGISTRYINDEX, ctx->ud);
- return 1;
-}
-
-static int lcontext_set_aggregate_context(lua_State *L) {
- lcontext *ctx = lsqlite_checkcontext(L, 1);
- lcontext_check_aggregate(L, ctx);
- lua_settop(L, 2);
- luaL_unref(L, LUA_REGISTRYINDEX, ctx->ud);
- ctx->ud = luaL_ref(L, LUA_REGISTRYINDEX);
- return 0;
-}
-
-static int lcontext_aggregate_count(lua_State *L) {
- lcontext *ctx = lsqlite_checkcontext(L, 1);
- lcontext_check_aggregate(L, ctx);
- lua_pushnumber(L, sqlite3_aggregate_count(ctx->ctx));
- return 1;
-}
-
-#if 0
-void *sqlite3_get_auxdata(sqlite3_context*, int);
-void sqlite3_set_auxdata(sqlite3_context*, int, void*, void (*)(void*));
-#endif
-
-static int lcontext_result(lua_State *L) {
- lcontext *ctx = lsqlite_checkcontext(L, 1);
- switch (lua_type(L, 2)) {
- case LUA_TNUMBER:
- sqlite3_result_double(ctx->ctx, luaL_checknumber(L, 2));
- break;
- case LUA_TSTRING:
- sqlite3_result_text(ctx->ctx, luaL_checkstring(L, 2), lua_strlen(L, 2), SQLITE_TRANSIENT);
- break;
- case LUA_TNIL:
- case LUA_TNONE:
- sqlite3_result_null(ctx->ctx);
- break;
- default:
- luaL_error(L, "invalid result type %s", lua_typename(L, 2));
- break;
- }
-
- return 0;
-}
-
-static int lcontext_result_blob(lua_State *L) {
- lcontext *ctx = lsqlite_checkcontext(L, 1);
- const char *blob = luaL_checkstring(L, 2);
- int size = lua_strlen(L, 2);
- sqlite3_result_blob(ctx->ctx, (const void*)blob, size, SQLITE_TRANSIENT);
- return 0;
-}
-
-static int lcontext_result_double(lua_State *L) {
- lcontext *ctx = lsqlite_checkcontext(L, 1);
- double d = luaL_checknumber(L, 2);
- sqlite3_result_double(ctx->ctx, d);
- return 0;
-}
-
-static int lcontext_result_error(lua_State *L) {
- lcontext *ctx = lsqlite_checkcontext(L, 1);
- const char *err = luaL_checkstring(L, 2);
- int size = lua_strlen(L, 2);
- sqlite3_result_error(ctx->ctx, err, size);
- return 0;
-}
-
-static int lcontext_result_int(lua_State *L) {
- lcontext *ctx = lsqlite_checkcontext(L, 1);
- int i = luaL_checkint(L, 2);
- sqlite3_result_int(ctx->ctx, i);
- return 0;
-}
-
-static int lcontext_result_null(lua_State *L) {
- lcontext *ctx = lsqlite_checkcontext(L, 1);
- sqlite3_result_null(ctx->ctx);
- return 0;
-}
-
-static int lcontext_result_text(lua_State *L) {
- lcontext *ctx = lsqlite_checkcontext(L, 1);
- const char *text = luaL_checkstring(L, 2);
- int size = lua_strlen(L, 2);
- sqlite3_result_text(ctx->ctx, text, size, SQLITE_TRANSIENT);
- return 0;
-}
-
-/*
-** =======================================================
-** Database Methods
-** =======================================================
-*/
-
-static int db_isopen(lua_State *L) {
- sdb *db = lsqlite_getdb(L, 1);
- lua_pushboolean(L, db->db != NULL ? 1 : 0);
- return 1;
-}
-
-static int db_last_insert_rowid(lua_State *L) {
- sdb *db = lsqlite_checkdb(L, 1);
- /* conversion warning: int64 -> luaNumber */
- sqlite_int64 rowid = sqlite3_last_insert_rowid(db->db);
- lua_Number n = (lua_Number)rowid;
- if (n == rowid)
- lua_pushnumber(L, n);
- else
- lua_pushfstring(L, "%ll", rowid);
- return 1;
-}
-
-static int db_changes(lua_State *L) {
- sdb *db = lsqlite_checkdb(L, 1);
- lua_pushnumber(L, sqlite3_changes(db->db));
- return 1;
-}
-
-static int db_total_changes(lua_State *L) {
- sdb *db = lsqlite_checkdb(L, 1);
- lua_pushnumber(L, sqlite3_total_changes(db->db));
- return 1;
-}
-
-static int db_errcode(lua_State *L) {
- sdb *db = lsqlite_checkdb(L, 1);
- lua_pushnumber(L, sqlite3_errcode(db->db));
- return 1;
-}
-
-static int db_errmsg(lua_State *L) {
- sdb *db = lsqlite_checkdb(L, 1);
- lua_pushstring(L, sqlite3_errmsg(db->db));
- return 1;
-}
-
-static int db_interrupt(lua_State *L) {
- sdb *db = lsqlite_checkdb(L, 1);
- sqlite3_interrupt(db->db);
- return 0;
-}
-
-/*
-** Registering SQL functions:
-*/
-
-static void db_push_value(lua_State *L, sqlite3_value *value) {
- switch (sqlite3_value_type(value)) {
- case SQLITE_TEXT:
- lua_pushlstring(L, (const char*)sqlite3_value_text(value), sqlite3_value_bytes(value));
- break;
-
- case SQLITE_INTEGER:
- {
- sqlite_int64 i64 = sqlite3_value_int64(value);
- lua_Number n = (lua_Number)i64;
- if (n == i64)
- lua_pushnumber(L, n);
- else
- lua_pushlstring(L, (const char*)sqlite3_value_text(value), sqlite3_value_bytes(value));
- }
- break;
-
- case SQLITE_FLOAT:
- lua_pushnumber(L, sqlite3_value_double(value));
- break;
-
- case SQLITE_BLOB:
- lua_pushlstring(L, sqlite3_value_blob(value), sqlite3_value_bytes(value));
- break;
-
- case SQLITE_NULL:
- lua_pushnil(L);
- break;
-
- default:
- /* things done properly (SQLite + Lua SQLite)
- ** this should never happen */
- lua_pushnil(L);
- break;
- }
-}
-
-/*
-** callback functions used when calling registered sql functions
-*/
-
-/* scalar function to be called
-** callback params: context, values... */
-static void db_sql_normal_function(sqlite3_context *context, int argc, sqlite3_value **argv) {
- sdb_func *func = (sdb_func*)sqlite3_user_data(context);
- lua_State *L = func->db->L;
- int n;
- lcontext *ctx;
-
- int top = lua_gettop(L);
-
- /* ensure there is enough space in the stack */
- lua_checkstack(L, argc + 3);
-
- lua_rawgeti(L, LUA_REGISTRYINDEX, func->fn_step); /* function to call */
-
- if (!func->aggregate) {
- ctx = lsqlite_make_context(L); /* push context - used to set results */
- }
- else {
- /* reuse context userdata value */
- void *p = sqlite3_aggregate_context(context, 1);
- /* i think it is OK to use assume that using a light user data
- ** as an entry on LUA REGISTRY table will be unique */
- lua_pushlightuserdata(L, p);
- lua_rawget(L, LUA_REGISTRYINDEX); /* context table */
-
- if (lua_isnil(L, -1)) { /* not yet created? */
- lua_pop(L, 1);
- ctx = lsqlite_make_context(L);
- lua_pushlightuserdata(L, p);
- lua_pushvalue(L, -2);
- lua_rawset(L, LUA_REGISTRYINDEX);
- }
- else
- ctx = lsqlite_getcontext(L, -1);
- }
-
- /* push params */
- for (n = 0; n < argc; ++n) {
- db_push_value(L, argv[n]);
- }
-
- /* set context */
- ctx->ctx = context;
-
- if (lua_pcall(L, argc + 1, 0, 0)) {
- const char *errmsg = lua_tostring(L, -1);
- int size = lua_strlen(L, -1);
- sqlite3_result_error(context, errmsg, size);
- }
-
- /* invalidate context */
- ctx->ctx = NULL;
-
- if (!func->aggregate) {
- luaL_unref(L, LUA_REGISTRYINDEX, ctx->ud);
- }
-
- lua_settop(L, top);
-}
-
-static void db_sql_finalize_function(sqlite3_context *context) {
- sdb_func *func = (sdb_func*)sqlite3_user_data(context);
- lua_State *L = func->db->L;
- void *p = sqlite3_aggregate_context(context, 1); /* minimal mem usage */
- lcontext *ctx;
- int top = lua_gettop(L);
-
- lua_rawgeti(L, LUA_REGISTRYINDEX, func->fn_finalize); /* function to call */
-
- /* i think it is OK to use assume that using a light user data
- ** as an entry on LUA REGISTRY table will be unique */
- lua_pushlightuserdata(L, p);
- lua_rawget(L, LUA_REGISTRYINDEX); /* context table */
-
- if (lua_isnil(L, -1)) { /* not yet created? - shouldn't happen in finalize function */
- lua_pop(L, 1);
- ctx = lsqlite_make_context(L);
- lua_pushlightuserdata(L, p);
- lua_pushvalue(L, -2);
- lua_rawset(L, LUA_REGISTRYINDEX);
- }
- else
- ctx = lsqlite_getcontext(L, -1);
-
- /* set context */
- ctx->ctx = context;
-
- if (lua_pcall(L, 1, 0, 0)) {
- sqlite3_result_error(context, lua_tostring(L, -1), -1);
- }
-
- /* invalidate context */
- ctx->ctx = NULL;
-
- /* cleanup context */
- luaL_unref(L, LUA_REGISTRYINDEX, ctx->ud);
- /* remove it from registry */
- lua_pushlightuserdata(L, p);
- lua_pushnil(L);
- lua_rawset(L, LUA_REGISTRYINDEX);
-
- lua_settop(L, top);
-}
-
-/*
-** Register a normal function
-** Params: db, function name, number arguments, [ callback | step, finalize], user data
-** Returns: true on sucess
-**
-** Normal function:
-** Params: context, params
-**
-** Aggregate function:
-** Params of step: context, params
-** Params of finalize: context
-*/
-static int db_register_function(lua_State *L, int aggregate) {
- sdb *db = lsqlite_checkdb(L, 1);
- const char *name;
- int args;
- int result;
- sdb_func *func;
-
- /* safety measure */
- if (aggregate) aggregate = 1;
-
- name = luaL_checkstring(L, 2);
- args = luaL_checkint(L, 3);
- luaL_checktype(L, 4, LUA_TFUNCTION);
- if (aggregate) luaL_checktype(L, 5, LUA_TFUNCTION);
-
- /* maybe an alternative way to allocate memory should be used/avoided */
- func = (sdb_func*)malloc(sizeof(sdb_func));
- if (func == NULL) {
- luaL_error(L, "out of memory");
- }
-
- result = sqlite3_create_function(
- db->db, name, args, SQLITE_UTF8, func,
- aggregate ? NULL : db_sql_normal_function,
- aggregate ? db_sql_normal_function : NULL,
- aggregate ? db_sql_finalize_function : NULL
- );
-
- if (result == SQLITE_OK) {
- /* safety measures for userdata field to be present in the stack */
- lua_settop(L, 5 + aggregate);
-
- /* save registered function in db function list */
- func->db = db;
- func->aggregate = aggregate;
- func->next = db->func;
- db->func = func;
-
- /* save the setp/normal function callback */
- lua_pushvalue(L, 4);
- func->fn_step = luaL_ref(L, LUA_REGISTRYINDEX);
- /* save user data */
- lua_pushvalue(L, 5+aggregate);
- func->udata = luaL_ref(L, LUA_REGISTRYINDEX);
-
- if (aggregate) {
- lua_pushvalue(L, 5);
- func->fn_finalize = luaL_ref(L, LUA_REGISTRYINDEX);
- }
- else
- func->fn_finalize = LUA_NOREF;
- }
- else {
- /* free allocated memory */
- free(func);
- }
-
- lua_pushboolean(L, result == SQLITE_OK ? 1 : 0);
- return 1;
-}
-
-static int db_create_function(lua_State *L) {
- return db_register_function(L, 0);
-}
-
-static int db_create_aggregate(lua_State *L) {
- return db_register_function(L, 1);
-}
-
-/* create_collation; contributed by Thomas Lauer
-*/
-
-typedef struct {
- lua_State *L;
- int ref;
-} scc;
-
-static int collwrapper(scc *co,int l1,const void *p1,
- int l2,const void *p2) {
- int res=0;
- lua_State *L=co->L;
- lua_rawgeti(L,LUA_REGISTRYINDEX,co->ref);
- lua_pushlstring(L,p1,l1);
- lua_pushlstring(L,p2,l2);
- if (lua_pcall(L,2,1,0)==0) res=(int)lua_tonumber(L,-1);
- lua_pop(L,1);
- return res;
-}
-
-static void collfree(scc *co) {
- if (co) {
- luaL_unref(co->L,LUA_REGISTRYINDEX,co->ref);
- free(co);
- }
-}
-
-static int db_create_collation(lua_State *L) {
- sdb *db=lsqlite_checkdb(L,1);
- const char *collname=luaL_checkstring(L,2);
- scc *co=NULL;
- int (*collfunc)(scc *,int,const void *,int,const void *)=NULL;
- lua_settop(L,3); /* default args to nil, and exclude extras */
- if (lua_isfunction(L,3)) collfunc=collwrapper;
- else if (!lua_isnil(L,3))
- luaL_error(L,"create_collation: function or nil expected");
- if (collfunc != NULL) {
- co=(scc *)malloc(sizeof(scc)); /* userdata is a no-no as it
- will be garbage-collected */
- if (co) {
- co->L=L;
- /* lua_settop(L,3) above means we don't need: lua_pushvalue(L,3); */
- co->ref=luaL_ref(L,LUA_REGISTRYINDEX);
- }
- else luaL_error(L,"create_collation: could not allocate callback");
- }
- sqlite3_create_collation_v2(db->db, collname, SQLITE_UTF8,
- (void *)co,
- (int(*)(void*,int,const void*,int,const void*))collfunc,
- (void(*)(void*))collfree);
- return 0;
-}
-
-/*
-** trace callback:
-** Params: database, callback function, userdata
-**
-** callback function:
-** Params: userdata, sql
-*/
-static void db_trace_callback(void *user, const char *sql) {
- sdb *db = (sdb*)user;
- lua_State *L = db->L;
- int top = lua_gettop(L);
-
- /* setup lua callback call */
- lua_rawgeti(L, LUA_REGISTRYINDEX, db->trace_cb); /* get callback */
- lua_rawgeti(L, LUA_REGISTRYINDEX, db->trace_udata); /* get callback user data */
- lua_pushstring(L, sql); /* traced sql statement */
-
- /* call lua function */
- lua_pcall(L, 2, 0, 0);
- /* ignore any error generated by this function */
-
- lua_settop(L, top);
-}
-
-static int db_trace(lua_State *L) {
- sdb *db = lsqlite_checkdb(L, 1);
-
- if (lua_gettop(L) < 2 || lua_isnil(L, 2)) {
- luaL_unref(L, LUA_REGISTRYINDEX, db->trace_cb);
- luaL_unref(L, LUA_REGISTRYINDEX, db->trace_udata);
-
- db->trace_cb =
- db->trace_udata = LUA_NOREF;
-
- /* clear trace handler */
- sqlite3_trace(db->db, NULL, NULL);
- }
- else {
- luaL_checktype(L, 2, LUA_TFUNCTION);
-
- /* make sure we have an userdata field (even if nil) */
- lua_settop(L, 3);
-
- luaL_unref(L, LUA_REGISTRYINDEX, db->trace_cb);
- luaL_unref(L, LUA_REGISTRYINDEX, db->trace_udata);
-
- db->trace_udata = luaL_ref(L, LUA_REGISTRYINDEX);
- db->trace_cb = luaL_ref(L, LUA_REGISTRYINDEX);
-
- /* set trace handler */
- sqlite3_trace(db->db, db_trace_callback, db);
- }
-
- return 0;
-}
-
-#if !defined(LSQLITE_OMIT_UPDATE_HOOK) || !LSQLITE_OMIT_UPDATE_HOOK
-
-/*
-** update_hook callback:
-** Params: database, callback function, userdata
-**
-** callback function:
-** Params: userdata, {one of SQLITE_INSERT, SQLITE_DELETE, or SQLITE_UPDATE},
-** database name, table name (containing the affected row), rowid of the row
-*/
-static void db_update_hook_callback(void *user, int op, char const *dbname, char const *tblname, sqlite3_int64 rowid) {
- sdb *db = (sdb*)user;
- lua_State *L = db->L;
- int top = lua_gettop(L);
- lua_Number n = (lua_Number)rowid;
-
- /* setup lua callback call */
- lua_rawgeti(L, LUA_REGISTRYINDEX, db->update_hook_cb); /* get callback */
- lua_rawgeti(L, LUA_REGISTRYINDEX, db->update_hook_udata); /* get callback user data */
- lua_pushnumber(L, (lua_Number )op);
- lua_pushstring(L, dbname); /* update_hook database name */
- lua_pushstring(L, tblname); /* update_hook database name */
- if (n == rowid)
- lua_pushnumber(L, n);
- else
- lua_pushfstring(L, "%ll", rowid);
-
- /* call lua function */
- lua_pcall(L, 5, 0, 0);
- /* ignore any error generated by this function */
-
- lua_settop(L, top);
-}
-
-static int db_update_hook(lua_State *L) {
- sdb *db = lsqlite_checkdb(L, 1);
-
- if (lua_gettop(L) < 2 || lua_isnil(L, 2)) {
- luaL_unref(L, LUA_REGISTRYINDEX, db->update_hook_cb);
- luaL_unref(L, LUA_REGISTRYINDEX, db->update_hook_udata);
-
- db->update_hook_cb =
- db->update_hook_udata = LUA_NOREF;
-
- /* clear update_hook handler */
- sqlite3_update_hook(db->db, NULL, NULL);
- }
- else {
- luaL_checktype(L, 2, LUA_TFUNCTION);
-
- /* make sure we have an userdata field (even if nil) */
- lua_settop(L, 3);
-
- luaL_unref(L, LUA_REGISTRYINDEX, db->update_hook_cb);
- luaL_unref(L, LUA_REGISTRYINDEX, db->update_hook_udata);
-
- db->update_hook_udata = luaL_ref(L, LUA_REGISTRYINDEX);
- db->update_hook_cb = luaL_ref(L, LUA_REGISTRYINDEX);
-
- /* set update_hook handler */
- sqlite3_update_hook(db->db, db_update_hook_callback, db);
- }
-
- return 0;
-}
-
-/*
-** commit_hook callback:
-** Params: database, callback function, userdata
-**
-** callback function:
-** Params: userdata
-** Returned value: Return false or nil to continue the COMMIT operation normally.
-** return true (non false, non nil), then the COMMIT is converted into a ROLLBACK.
-*/
-static int db_commit_hook_callback(void *user) {
- sdb *db = (sdb*)user;
- lua_State *L = db->L;
- int top = lua_gettop(L);
- int rollback = 0;
-
- /* setup lua callback call */
- lua_rawgeti(L, LUA_REGISTRYINDEX, db->commit_hook_cb); /* get callback */
- lua_rawgeti(L, LUA_REGISTRYINDEX, db->commit_hook_udata); /* get callback user data */
-
- /* call lua function */
- if (!lua_pcall(L, 1, 1, 0))
- rollback = lua_toboolean(L, -1); /* use result if there was no error */
-
- lua_settop(L, top);
- return rollback;
-}
-
-static int db_commit_hook(lua_State *L) {
- sdb *db = lsqlite_checkdb(L, 1);
-
- if (lua_gettop(L) < 2 || lua_isnil(L, 2)) {
- luaL_unref(L, LUA_REGISTRYINDEX, db->commit_hook_cb);
- luaL_unref(L, LUA_REGISTRYINDEX, db->commit_hook_udata);
-
- db->commit_hook_cb =
- db->commit_hook_udata = LUA_NOREF;
-
- /* clear commit_hook handler */
- sqlite3_commit_hook(db->db, NULL, NULL);
- }
- else {
- luaL_checktype(L, 2, LUA_TFUNCTION);
-
- /* make sure we have an userdata field (even if nil) */
- lua_settop(L, 3);
-
- luaL_unref(L, LUA_REGISTRYINDEX, db->commit_hook_cb);
- luaL_unref(L, LUA_REGISTRYINDEX, db->commit_hook_udata);
-
- db->commit_hook_udata = luaL_ref(L, LUA_REGISTRYINDEX);
- db->commit_hook_cb = luaL_ref(L, LUA_REGISTRYINDEX);
-
- /* set commit_hook handler */
- sqlite3_commit_hook(db->db, db_commit_hook_callback, db);
- }
-
- return 0;
-}
-
-/*
-** rollback hook callback:
-** Params: database, callback function, userdata
-**
-** callback function:
-** Params: userdata
-*/
-static void db_rollback_hook_callback(void *user) {
- sdb *db = (sdb*)user;
- lua_State *L = db->L;
- int top = lua_gettop(L);
-
- /* setup lua callback call */
- lua_rawgeti(L, LUA_REGISTRYINDEX, db->rollback_hook_cb); /* get callback */
- lua_rawgeti(L, LUA_REGISTRYINDEX, db->rollback_hook_udata); /* get callback user data */
-
- /* call lua function */
- lua_pcall(L, 1, 0, 0);
- /* ignore any error generated by this function */
-
- lua_settop(L, top);
-}
-
-static int db_rollback_hook(lua_State *L) {
- sdb *db = lsqlite_checkdb(L, 1);
-
- if (lua_gettop(L) < 2 || lua_isnil(L, 2)) {
- luaL_unref(L, LUA_REGISTRYINDEX, db->rollback_hook_cb);
- luaL_unref(L, LUA_REGISTRYINDEX, db->rollback_hook_udata);
-
- db->rollback_hook_cb =
- db->rollback_hook_udata = LUA_NOREF;
-
- /* clear rollback_hook handler */
- sqlite3_rollback_hook(db->db, NULL, NULL);
- }
- else {
- luaL_checktype(L, 2, LUA_TFUNCTION);
-
- /* make sure we have an userdata field (even if nil) */
- lua_settop(L, 3);
-
- luaL_unref(L, LUA_REGISTRYINDEX, db->rollback_hook_cb);
- luaL_unref(L, LUA_REGISTRYINDEX, db->rollback_hook_udata);
-
- db->rollback_hook_udata = luaL_ref(L, LUA_REGISTRYINDEX);
- db->rollback_hook_cb = luaL_ref(L, LUA_REGISTRYINDEX);
-
- /* set rollback_hook handler */
- sqlite3_rollback_hook(db->db, db_rollback_hook_callback, db);
- }
-
- return 0;
-}
-
-#endif /* #if !defined(LSQLITE_OMIT_UPDATE_HOOK) || !LSQLITE_OMIT_UPDATE_HOOK */
-
-#if !defined(SQLITE_OMIT_PROGRESS_CALLBACK) || !SQLITE_OMIT_PROGRESS_CALLBACK
-
-/*
-** progress handler:
-** Params: database, number of opcodes, callback function, userdata
-**
-** callback function:
-** Params: userdata
-** returns: 0 to return immediatly and return SQLITE_ABORT, non-zero to continue
-*/
-static int db_progress_callback(void *user) {
- int result = 1; /* abort by default */
- sdb *db = (sdb*)user;
- lua_State *L = db->L;
- int top = lua_gettop(L);
-
- lua_rawgeti(L, LUA_REGISTRYINDEX, db->progress_cb);
- lua_rawgeti(L, LUA_REGISTRYINDEX, db->progress_udata);
-
- /* call lua function */
- if (!lua_pcall(L, 1, 1, 0))
- result = lua_toboolean(L, -1);
-
- lua_settop(L, top);
- return result;
-}
-
-static int db_progress_handler(lua_State *L) {
- sdb *db = lsqlite_checkdb(L, 1);
-
- if (lua_gettop(L) < 2 || lua_isnil(L, 2)) {
- luaL_unref(L, LUA_REGISTRYINDEX, db->progress_cb);
- luaL_unref(L, LUA_REGISTRYINDEX, db->progress_udata);
-
- db->progress_cb =
- db->progress_udata = LUA_NOREF;
-
- /* clear busy handler */
- sqlite3_progress_handler(db->db, 0, NULL, NULL);
- }
- else {
- int nop = luaL_checkint(L, 2); /* number of opcodes */
- luaL_checktype(L, 3, LUA_TFUNCTION);
-
- /* make sure we have an userdata field (even if nil) */
- lua_settop(L, 4);
-
- luaL_unref(L, LUA_REGISTRYINDEX, db->progress_cb);
- luaL_unref(L, LUA_REGISTRYINDEX, db->progress_udata);
-
- db->progress_udata = luaL_ref(L, LUA_REGISTRYINDEX);
- db->progress_cb = luaL_ref(L, LUA_REGISTRYINDEX);
-
- /* set progress callback */
- sqlite3_progress_handler(db->db, nop, db_progress_callback, db);
- }
-
- return 0;
-}
-
-#else /* #if !defined(SQLITE_OMIT_PROGRESS_CALLBACK) || !SQLITE_OMIT_PROGRESS_CALLBACK */
-
-static int db_progress_handler(lua_State *L) {
- lua_pushliteral(L, "progress callback support disabled at compile time");
- lua_error(L);
- return 0;
-}
-
-#endif /* #if !defined(SQLITE_OMIT_PROGRESS_CALLBACK) || !SQLITE_OMIT_PROGRESS_CALLBACK */
-
-/*
-** busy handler:
-** Params: database, callback function, userdata
-**
-** callback function:
-** Params: userdata, number of tries
-** returns: 0 to return immediatly and return SQLITE_BUSY, non-zero to try again
-*/
-static int db_busy_callback(void *user, int tries) {
- int retry = 0; /* abort by default */
- sdb *db = (sdb*)user;
- lua_State *L = db->L;
- int top = lua_gettop(L);
-
- lua_rawgeti(L, LUA_REGISTRYINDEX, db->busy_cb);
- lua_rawgeti(L, LUA_REGISTRYINDEX, db->busy_udata);
- lua_pushnumber(L, tries);
-
- /* call lua function */
- if (!lua_pcall(L, 2, 1, 0))
- retry = lua_toboolean(L, -1);
-
- lua_settop(L, top);
- return retry;
-}
-
-static int db_busy_handler(lua_State *L) {
- sdb *db = lsqlite_checkdb(L, 1);
-
- if (lua_gettop(L) < 2 || lua_isnil(L, 2)) {
- luaL_unref(L, LUA_REGISTRYINDEX, db->busy_cb);
- luaL_unref(L, LUA_REGISTRYINDEX, db->busy_udata);
-
- db->busy_cb =
- db->busy_udata = LUA_NOREF;
-
- /* clear busy handler */
- sqlite3_busy_handler(db->db, NULL, NULL);
- }
- else {
- luaL_checktype(L, 2, LUA_TFUNCTION);
- /* make sure we have an userdata field (even if nil) */
- lua_settop(L, 3);
-
- luaL_unref(L, LUA_REGISTRYINDEX, db->busy_cb);
- luaL_unref(L, LUA_REGISTRYINDEX, db->busy_udata);
-
- db->busy_udata = luaL_ref(L, LUA_REGISTRYINDEX);
- db->busy_cb = luaL_ref(L, LUA_REGISTRYINDEX);
-
- /* set busy handler */
- sqlite3_busy_handler(db->db, db_busy_callback, db);
- }
-
- return 0;
-}
-
-static int db_busy_timeout(lua_State *L) {
- sdb *db = lsqlite_checkdb(L, 1);
- int timeout = luaL_checkint(L, 2);
- sqlite3_busy_timeout(db->db, timeout);
-
- /* if there was a timeout callback registered, it is now
- ** invalid/useless. free any references we may have */
- luaL_unref(L, LUA_REGISTRYINDEX, db->busy_cb);
- luaL_unref(L, LUA_REGISTRYINDEX, db->busy_udata);
- db->busy_cb =
- db->busy_udata = LUA_NOREF;
-
- return 0;
-}
-
-/*
-** Params: db, sql, callback, user
-** returns: code [, errmsg]
-**
-** Callback:
-** Params: user, number of columns, values, names
-** Returns: 0 to continue, other value will cause abort
-*/
-static int db_exec_callback(void* user, int columns, char **data, char **names) {
- int result = SQLITE_ABORT; /* abort by default */
- lua_State *L = (lua_State*)user;
- int n;
-
- int top = lua_gettop(L);
-
- lua_pushvalue(L, 3); /* function to call */
- lua_pushvalue(L, 4); /* user data */
- lua_pushnumber(L, columns); /* total number of rows in result */
-
- /* column values */
- lua_pushvalue(L, 6);
- for (n = 0; n < columns;) {
- lua_pushstring(L, data[n++]);
- lua_rawseti(L, -2, n);
- }
-
- /* columns names */
- lua_pushvalue(L, 5);
- if (lua_isnil(L, -1)) {
- lua_pop(L, 1);
- lua_newtable(L);
- lua_pushvalue(L, -1);
- lua_replace(L, 5);
- for (n = 0; n < columns;) {
- lua_pushstring(L, names[n++]);
- lua_rawseti(L, -2, n);
- }
- }
-
- /* call lua function */
- if (!lua_pcall(L, 4, 1, 0)) {
- if (lua_isnumber(L, -1))
- result = (int)lua_tonumber(L, -1);
- }
-
- lua_settop(L, top);
- return result;
-}
-
-static int db_exec(lua_State *L) {
- sdb *db = lsqlite_checkdb(L, 1);
- const char *sql = luaL_checkstring(L, 2);
- int result;
-
- if (!lua_isnoneornil(L, 3)) {
- /* stack:
- ** 3: callback function
- ** 4: userdata
- ** 5: column names
- ** 6: reusable column values
- */
- luaL_checktype(L, 3, LUA_TFUNCTION);
- lua_settop(L, 4); /* 'trap' userdata - nil extra parameters */
- lua_pushnil(L); /* column names not known at this point */
- lua_newtable(L); /* column values table */
-
- result = sqlite3_exec(db->db, sql, db_exec_callback, L, NULL);
- }
- else {
- /* no callbacks */
- result = sqlite3_exec(db->db, sql, NULL, NULL, NULL);
- }
-
- lua_pushnumber(L, result);
- return 1;
-}
-
-/*
-** Params: db, sql
-** returns: code, compiled length or error message
-*/
-static int db_prepare(lua_State *L) {
- sdb *db = lsqlite_checkdb(L, 1);
- const char *sql = luaL_checkstring(L, 2);
- int sql_len = lua_strlen(L, 2);
- const char *sqltail;
- sdb_vm *svm;
- lua_settop(L,2); /* sql is on top of stack for call to newvm */
- svm = newvm(L, db);
-
- if (sqlite3_prepare(db->db, sql, sql_len, &svm->vm, &sqltail) != SQLITE_OK) {
- cleanupvm(L, svm);
-
- lua_pushnil(L);
- lua_pushnumber(L, sqlite3_errcode(db->db));
- return 2;
- }
-
- /* vm already in the stack */
- lua_pushstring(L, sqltail);
- return 2;
-}
-
-static int db_do_next_row(lua_State *L, int packed) {
- int result;
- sdb_vm *svm = lsqlite_checkvm(L, 1);
- sqlite3_stmt *vm;
- int columns;
- int i;
-
- result = stepvm(L, svm);
- vm = svm->vm; /* stepvm may change svm->vm if re-prepare is needed */
- svm->has_values = result == SQLITE_ROW ? 1 : 0;
- svm->columns = columns = sqlite3_data_count(vm);
-
- if (result == SQLITE_ROW) {
- if (packed) {
- lua_newtable(L);
- if (packed == 1) {
- for (i = 0; i < columns;) {
- vm_push_column(L, vm, i);
- lua_rawseti(L, -2, ++i);
- }
- }
- else {
- for (i = 0; i < columns; ++i) {
- lua_pushstring(L, sqlite3_column_name(vm, i));
- vm_push_column(L, vm, i);
- lua_rawset(L, -3);
- }
- }
- return 1;
- }
- else {
- lua_checkstack(L, columns);
- for (i = 0; i < columns; ++i)
- vm_push_column(L, vm, i);
- return svm->columns;
- }
- }
-
- if (svm->temp) {
- /* finalize and check for errors */
- result = sqlite3_finalize(vm);
- svm->vm = NULL;
- cleanupvm(L, svm);
- }
- else if (result == SQLITE_DONE) {
- result = sqlite3_reset(vm);
- }
-
- if (result != SQLITE_OK) {
- lua_pushstring(L, sqlite3_errmsg(svm->db->db));
- lua_error(L);
- }
- return 0;
-}
-
-static int db_next_row(lua_State *L) {
- return db_do_next_row(L, 0);
-}
-
-static int db_next_packed_row(lua_State *L) {
- return db_do_next_row(L, 1);
-}
-
-static int db_next_named_row(lua_State *L) {
- return db_do_next_row(L, 2);
-}
-
-static int dbvm_do_rows(lua_State *L, int(*f)(lua_State *)) {
- /* sdb_vm *svm = */
- lsqlite_checkvm(L, 1);
- lua_pushvalue(L,1);
- lua_pushcfunction(L, f);
- lua_insert(L, -2);
- return 2;
-}
-
-static int dbvm_rows(lua_State *L) {
- return dbvm_do_rows(L, db_next_packed_row);
-}
-
-static int dbvm_nrows(lua_State *L) {
- return dbvm_do_rows(L, db_next_named_row);
-}
-
-static int dbvm_urows(lua_State *L) {
- return dbvm_do_rows(L, db_next_row);
-}
-
-static int db_do_rows(lua_State *L, int(*f)(lua_State *)) {
- sdb *db = lsqlite_checkdb(L, 1);
- const char *sql = luaL_checkstring(L, 2);
- sdb_vm *svm;
- lua_settop(L,2); /* sql is on top of stack for call to newvm */
- svm = newvm(L, db);
- svm->temp = 1;
-
- if (sqlite3_prepare(db->db, sql, -1, &svm->vm, NULL) != SQLITE_OK) {
- cleanupvm(L, svm);
-
- lua_pushstring(L, sqlite3_errmsg(svm->db->db));
- lua_error(L);
- }
-
- lua_pushcfunction(L, f);
- lua_insert(L, -2);
- return 2;
-}
-
-static int db_rows(lua_State *L) {
- return db_do_rows(L, db_next_packed_row);
-}
-
-static int db_nrows(lua_State *L) {
- return db_do_rows(L, db_next_named_row);
-}
-
-/* unpacked version of db:rows */
-static int db_urows(lua_State *L) {
- return db_do_rows(L, db_next_row);
-}
-
-static int db_tostring(lua_State *L) {
- char buff[32];
- sdb *db = lsqlite_getdb(L, 1);
- if (db->db == NULL)
- strcpy(buff, "closed");
- else
- sprintf(buff, "%p", lua_touserdata(L, 1));
- lua_pushfstring(L, "sqlite database (%s)", buff);
- return 1;
-}
-
-static int db_close(lua_State *L) {
- sdb *db = lsqlite_checkdb(L, 1);
- lua_pushnumber(L, cleanupdb(L, db));
- return 1;
-}
-
-static int db_close_vm(lua_State *L) {
- sdb *db = lsqlite_checkdb(L, 1);
- /* cleanup temporary only tables? */
- int temp = lua_toboolean(L, 2);
-
- /* free associated virtual machines */
- lua_pushlightuserdata(L, db);
- lua_rawget(L, LUA_REGISTRYINDEX);
-
- /* close all used handles */
- lua_pushnil(L);
- while (lua_next(L, -2)) {
- sdb_vm *svm = lua_touserdata(L, -2); /* key: vm; val: sql text */
-
- if ((!temp || svm->temp) && svm->vm)
- {
- sqlite3_finalize(svm->vm);
- svm->vm = NULL;
- }
-
- /* leave key in the stack */
- lua_pop(L, 1);
- }
- return 0;
-}
-
-static int db_gc(lua_State *L) {
- sdb *db = lsqlite_getdb(L, 1);
- if (db->db != NULL) /* ignore closed databases */
- cleanupdb(L, db);
- return 0;
-}
-
-/*
-** =======================================================
-** General library functions
-** =======================================================
-*/
-
-static int lsqlite_version(lua_State *L) {
- lua_pushstring(L, sqlite3_libversion());
- return 1;
-}
-
-static int lsqlite_complete(lua_State *L) {
- const char *sql = luaL_checkstring(L, 1);
- lua_pushboolean(L, sqlite3_complete(sql));
- return 1;
-}
-
-#ifndef WIN32
-static int lsqlite_temp_directory(lua_State *L) {
- const char *oldtemp = sqlite3_temp_directory;
-
- if (!lua_isnone(L, 1)) {
- const char *temp = luaL_optstring(L, 1, NULL);
- if (sqlite3_temp_directory) {
- sqlite3_free((char*)sqlite3_temp_directory);
- }
- if (temp) {
- sqlite3_temp_directory = sqlite3_mprintf("%s", temp);
- }
- else {
- sqlite3_temp_directory = NULL;
- }
- }
- lua_pushstring(L, oldtemp);
- return 1;
-}
-#endif
-
-static int lsqlite_do_open(lua_State *L, const char *filename) {
- sdb *db = newdb(L); /* create and leave in stack */
-
- if (sqlite3_open(filename, &db->db) == SQLITE_OK) {
- /* database handle already in the stack - return it */
- return 1;
- }
-
- /* failed to open database */
- lua_pushnil(L); /* push nil */
- lua_pushnumber(L, sqlite3_errcode(db->db));
- lua_pushstring(L, sqlite3_errmsg(db->db)); /* push error message */
-
- /* clean things up */
- cleanupdb(L, db);
-
- /* return */
- return 3;
-}
-
-static int lsqlite_open(lua_State *L) {
- const char *filename = luaL_checkstring(L, 1);
- return lsqlite_do_open(L, filename);
-}
-
-static int lsqlite_open_memory(lua_State *L) {
- return lsqlite_do_open(L, ":memory:");
-}
-
-static int lsqlite_newindex(lua_State *L) {
- lua_pushliteral(L, "attempt to change readonly table");
- lua_error(L);
- return 0;
-}
-
-/*
-** =======================================================
-** Register functions
-** =======================================================
-*/
-
-#define SC(s) { #s, SQLITE_ ## s },
-#define LSC(s) { #s, LSQLITE_ ## s },
-
-static const struct {
- const char* name;
- int value;
-} sqlite_constants[] = {
- /* error codes */
- SC(OK) SC(ERROR) SC(INTERNAL) SC(PERM)
- SC(ABORT) SC(BUSY) SC(LOCKED) SC(NOMEM)
- SC(READONLY) SC(INTERRUPT) SC(IOERR) SC(CORRUPT)
- SC(NOTFOUND) SC(FULL) SC(CANTOPEN) SC(PROTOCOL)
- SC(EMPTY) SC(SCHEMA) SC(TOOBIG) SC(CONSTRAINT)
- SC(MISMATCH) SC(MISUSE) SC(NOLFS)
- SC(FORMAT) SC(NOTADB)
-
- /* sqlite_step specific return values */
- SC(RANGE) SC(ROW) SC(DONE)
-
- /* column types */
- SC(INTEGER) SC(FLOAT) SC(TEXT) SC(BLOB)
- SC(NULL)
-
- /* Authorizer Action Codes */
- SC(CREATE_INDEX )
- SC(CREATE_TABLE )
- SC(CREATE_TEMP_INDEX )
- SC(CREATE_TEMP_TABLE )
- SC(CREATE_TEMP_TRIGGER)
- SC(CREATE_TEMP_VIEW )
- SC(CREATE_TRIGGER )
- SC(CREATE_VIEW )
- SC(DELETE )
- SC(DROP_INDEX )
- SC(DROP_TABLE )
- SC(DROP_TEMP_INDEX )
- SC(DROP_TEMP_TABLE )
- SC(DROP_TEMP_TRIGGER )
- SC(DROP_TEMP_VIEW )
- SC(DROP_TRIGGER )
- SC(DROP_VIEW )
- SC(INSERT )
- SC(PRAGMA )
- SC(READ )
- SC(SELECT )
- SC(TRANSACTION )
- SC(UPDATE )
- SC(ATTACH )
- SC(DETACH )
- SC(ALTER_TABLE )
- SC(REINDEX )
- SC(ANALYZE )
- SC(CREATE_VTABLE )
- SC(DROP_VTABLE )
- SC(FUNCTION )
- SC(SAVEPOINT )
-
- /* terminator */
- { NULL, 0 }
-};
-
-/* ======================================================= */
-
-static const luaL_Reg dblib[] = {
- {"isopen", db_isopen },
- {"last_insert_rowid", db_last_insert_rowid },
- {"changes", db_changes },
- {"total_changes", db_total_changes },
- {"errcode", db_errcode },
- {"error_code", db_errcode },
- {"errmsg", db_errmsg },
- {"error_message", db_errmsg },
- {"interrupt", db_interrupt },
-
- {"create_function", db_create_function },
- {"create_aggregate", db_create_aggregate },
- {"create_collation", db_create_collation },
-
- {"trace", db_trace },
- {"progress_handler", db_progress_handler },
- {"busy_timeout", db_busy_timeout },
- {"busy_handler", db_busy_handler },
-#if !defined(LSQLITE_OMIT_UPDATE_HOOK) || !LSQLITE_OMIT_UPDATE_HOOK
- {"update_hook", db_update_hook },
- {"commit_hook", db_commit_hook },
- {"rollback_hook", db_rollback_hook },
-#endif
-
- {"prepare", db_prepare },
- {"rows", db_rows },
- {"urows", db_urows },
- {"nrows", db_nrows },
-
- {"exec", db_exec },
- {"execute", db_exec },
- {"close", db_close },
- {"close_vm", db_close_vm },
-
- {"__tostring", db_tostring },
- {"__gc", db_gc },
-
- {NULL, NULL}
-};
-
-static const luaL_Reg vmlib[] = {
- {"isopen", dbvm_isopen },
-
- {"step", dbvm_step },
- {"reset", dbvm_reset },
- {"finalize", dbvm_finalize },
-
- {"columns", dbvm_columns },
-
- {"bind", dbvm_bind },
- {"bind_values", dbvm_bind_values },
- {"bind_names", dbvm_bind_names },
- {"bind_blob", dbvm_bind_blob },
- {"bind_parameter_count",dbvm_bind_parameter_count},
- {"bind_parameter_name", dbvm_bind_parameter_name},
-
- {"get_value", dbvm_get_value },
- {"get_values", dbvm_get_values },
- {"get_name", dbvm_get_name },
- {"get_names", dbvm_get_names },
- {"get_type", dbvm_get_type },
- {"get_types", dbvm_get_types },
- {"get_uvalues", dbvm_get_uvalues },
- {"get_unames", dbvm_get_unames },
- {"get_utypes", dbvm_get_utypes },
-
- {"get_named_values", dbvm_get_named_values },
- {"get_named_types", dbvm_get_named_types },
-
- {"rows", dbvm_rows },
- {"urows", dbvm_urows },
- {"nrows", dbvm_nrows },
-
- /* compatibility names (added by request) */
- {"idata", dbvm_get_values },
- {"inames", dbvm_get_names },
- {"itypes", dbvm_get_types },
- {"data", dbvm_get_named_values },
- {"type", dbvm_get_named_types },
-
- {"__tostring", dbvm_tostring },
- {"__gc", dbvm_gc },
-
- { NULL, NULL }
-};
-
-static const luaL_Reg ctxlib[] = {
- {"user_data", lcontext_user_data },
-
- {"get_aggregate_data", lcontext_get_aggregate_context },
- {"set_aggregate_data", lcontext_set_aggregate_context },
- {"aggregate_count", lcontext_aggregate_count },
-
- {"result", lcontext_result },
- {"result_null", lcontext_result_null },
- {"result_number", lcontext_result_double },
- {"result_double", lcontext_result_double },
- {"result_int", lcontext_result_int },
- {"result_text", lcontext_result_text },
- {"result_blob", lcontext_result_blob },
- {"result_error", lcontext_result_error },
-
- {"__tostring", lcontext_tostring },
- {NULL, NULL}
-};
-
-static const luaL_Reg sqlitelib[] = {
- {"version", lsqlite_version },
- {"complete", lsqlite_complete },
-#ifndef WIN32
- {"temp_directory", lsqlite_temp_directory },
-#endif
- {"open", lsqlite_open },
- {"open_memory", lsqlite_open_memory },
-
- {"__newindex", lsqlite_newindex },
- {NULL, NULL}
-};
-
-static void create_meta(lua_State *L, const char *name, const luaL_Reg *lib) {
- luaL_newmetatable(L, name);
- lua_pushstring(L, "__index");
- lua_pushvalue(L, -2); /* push metatable */
- lua_rawset(L, -3); /* metatable.__index = metatable */
-
- /* register metatable functions */
- luaL_openlib(L, NULL, lib, 0);
-
- /* remove metatable from stack */
- lua_pop(L, 1);
-}
-
-LUALIB_API int luaopen_lsqlite3(lua_State *L) {
- create_meta(L, sqlite_meta, dblib);
- create_meta(L, sqlite_vm_meta, vmlib);
- create_meta(L, sqlite_ctx_meta, ctxlib);
-
- luaL_getmetatable(L, sqlite_ctx_meta);
- sqlite_ctx_meta_ref = luaL_ref(L, LUA_REGISTRYINDEX);
-
- /* register (local) sqlite metatable */
- luaL_register(L, "sqlite3", sqlitelib);
-
- {
- int i = 0;
- /* add constants to global table */
- while (sqlite_constants[i].name) {
- lua_pushstring(L, sqlite_constants[i].name);
- lua_pushnumber(L, sqlite_constants[i].value);
- lua_rawset(L, -3);
- ++i;
- }
- }
-
- /* set sqlite's metatable to itself - set as readonly (__newindex) */
- lua_pushvalue(L, -1);
- lua_setmetatable(L, -2);
-
- return 1;
-}
-
-
-
-
-#ifdef __cplusplus
-} // extern "C"
-#endif // __cplusplus
-
-
-
-
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-01 20:04:43 +0100