+++ /dev/null
-/* Copyright (c) 2010-2019. The SimGrid Team.
- * All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the license (GNU LGPL) which comes with this package. */
-
-/*
- * This file contains functions that aid users to debug their lua scripts; for instance,
- * tables can be easily output and values are represented in a human-readable way. (For instance,
- * a nullptr value becomes the string "nil").
- *
- */
- /* SimGrid Lua debug functions */
-#include <lauxlib.h>
-#include "lua_utils.hpp"
-#include "xbt.h"
-
-XBT_LOG_NEW_DEFAULT_CATEGORY(lua_debug, "Lua bindings (helper functions)");
-
-/**
- * @brief Returns a string representation of a value in the Lua stack.
- *
- * This function is for debugging purposes.
- * It always returns the same pointer.
- *
- * @param L the Lua state
- * @param index index in the stack
- * @return a string representation of the value at this index
- */
-const char* sglua_tostring(lua_State* L, int index) {
-
- static char buff[64];
-
- switch (lua_type(L, index)) {
-
- case LUA_TNIL:
- snprintf(buff, 4, "nil");
- break;
-
- case LUA_TNUMBER:
- snprintf(buff, 64, "%.3f", lua_tonumber(L, index));
- break;
-
- case LUA_TBOOLEAN:
- snprintf(buff, 64, "%s", lua_toboolean(L, index) ? "true" : "false");
- break;
-
- case LUA_TSTRING:
- snprintf(buff, 63, "'%s'", lua_tostring(L, index));
- break;
-
- case LUA_TFUNCTION:
- if (lua_iscfunction(L, index)) {
- snprintf(buff, 11, "C-function");
- }
- else {
- snprintf(buff, 9, "function");
- }
- break;
-
- case LUA_TTABLE:
- snprintf(buff, 64, "table(%p)", lua_topointer(L, index));
- break;
-
- case LUA_TLIGHTUSERDATA:
- case LUA_TUSERDATA:
- snprintf(buff, 64, "userdata(%p)", lua_touserdata(L, index));
- break;
-
- case LUA_TTHREAD:
- snprintf(buff, 7, "thread");
- break;
-
- default:
- snprintf(buff, 64, "unknown(%d)", lua_type(L, index));
- break;
- }
- return buff;
-}
-
-static int sglua_dump_table(lua_State* L) {
- int argc = lua_gettop(L);
-
- for (int i = 1; i < argc; i++) {
- if (lua_istable(L, i)) {
- lua_pushnil(L); /* table nil */
-
- //lua_next pops the topmost element from the stack and
- //gets the next pair from the table
- while (lua_next(L, -1)) { /* table key val */
- // we need to copy here, as a cast from "Number" to "String"
- // could happen in Lua.
- // see remark in the lua manual, function "lua_tolstring"
- // http://www.lua.org/manual/5.3/manual.html#lua_tolstring
-
- lua_pushvalue(L, -2); /* table key val key */
-
- const char *key = lua_tostring(L, -1); /* table key val */
- const char *val = lua_tostring(L, -1); /* table key */
-
- XBT_DEBUG("%s => %s", key, val);
- }
-
- lua_settop(L, argc); // Remove everything except the initial arguments
- }
- }
-
- return 0;
-}
-
-/**
- * @brief Returns a string composed of the specified number of spaces.
- *
- * This function can be used to indent strings for debugging purposes.
- * It always returns the same pointer.
- *
- * @param length length of the string
- * @return a string of this length with only spaces
- */
-const char* sglua_get_spaces(int length) {
-
- static char spaces[128];
-
- xbt_assert(length >= 0 && length < 128,
- "Invalid indentation length: %d", length);
- if (length != 0) {
- memset(spaces, ' ', length);
- }
- spaces[length] = '\0';
- return spaces;
-}
-
-/**
- * @brief Returns a string representation of a key-value pair.
- *
- * It always returns the same pointer.
- *
- * @param L the Lua state
- * @param key_index index of the key (in the lua stack)
- * @param value_index index of the value (in the lua stack)
- * @return a string representation of the key-value pair
- */
-const char* sglua_keyvalue_tostring(lua_State* L, int key_index, int value_index) {
-
- static char buff[64];
- /* value_tostring also always returns the same pointer */
- int len = snprintf(buff, 63, "[%s] -> ", sglua_tostring(L, key_index));
- snprintf(buff + len, 63 - len, "%s", sglua_tostring(L, value_index));
- return buff;
-}
-
-/**
- * @brief Dumps the Lua stack if debug logs are enabled.
- * @param msg a message to print
- * @param L a Lua state
- */
-void sglua_stack_dump(lua_State* L, const char* msg)
-{
- if (XBT_LOG_ISENABLED(lua_debug, xbt_log_priority_debug)) {
- char buff[2048];
- char* p = buff;
- int top = lua_gettop(L);
-
- fflush(stdout);
-
- p[0] = '\0';
- for (int i = 1; i <= top; i++) { /* repeat for each level */
- p += snprintf(p, 2048-(p-buff), "%s ", sglua_tostring(L, i));
- }
-
- XBT_DEBUG("%s%s", msg, buff);
- }
-}
-
-/**
- * @brief Like luaL_checkudata, with additional debug logs.
- *
- * This function is for debugging purposes only.
- *
- * @param L a lua state
- * @param ud index of the userdata to check in the stack
- * @param tname key of the metatable of this userdata in the registry
- */
-void* sglua_checkudata_debug(lua_State* L, int ud, const char* tname)
-{
- XBT_DEBUG("Checking the userdata: ud = %d", ud);
- sglua_stack_dump(L, "my_checkudata: ");
- void* p = lua_touserdata(L, ud);
- lua_getfield(L, LUA_REGISTRYINDEX, tname);
- const void* correct_mt = lua_topointer(L, -1);
-
- int has_mt = lua_getmetatable(L, ud);
- XBT_DEBUG("Checking the userdata: has metatable ? %d", has_mt);
- const void* actual_mt = nullptr;
- if (has_mt) {
- actual_mt = lua_topointer(L, -1);
- lua_pop(L, 1);
- }
- XBT_DEBUG("Checking the task's metatable: expected %p, found %p", correct_mt, actual_mt);
- sglua_stack_dump(L, "my_checkudata: ");
-
- if (p == nullptr || not lua_getmetatable(L, ud) || not lua_rawequal(L, -1, -2))
- XBT_ERROR("Error: Userdata is nullptr, couldn't find metatable or top of stack does not equal element below it.");
- lua_pop(L, 2);
- return p;
-}
-
-/**
- * @brief Writes the specified data into a memory buffer.
- *
- * This function is a valid lua_Writer that writes into a memory buffer passed
- * as userdata.
- *
- * @param L a lua state
- * @param source some data
- * @param size number of bytes of data
- * @param userdata the memory buffer to write
- */
-int sglua_memory_writer(lua_State* /*L*/, const void* source, size_t size, void* userdata)
-{
- sglua_buffer_t buffer = static_cast<sglua_buffer_t>(userdata);
- while (buffer->capacity < buffer->size + size) {
- buffer->capacity *= 2;
- buffer->data = static_cast<char*>(xbt_realloc(buffer->data, buffer->capacity));
- }
- memcpy(buffer->data + buffer->size, source, size);
- buffer->size += size;
-
- return 0;
-}
--- /dev/null
+/* Copyright (c) 2010-2019. The SimGrid Team.
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the license (GNU LGPL) which comes with this package. */
+
+/*
+ * This file contains functions that aid users to debug their lua scripts; for instance,
+ * tables can be easily output and values are represented in a human-readable way. (For instance,
+ * a nullptr value becomes the string "nil").
+ *
+ */
+/* SimGrid Lua helper functions */
+#include "lua_utils.hpp"
+#include <lauxlib.h>
+
+/**
+ * @brief Returns a string representation of a value in the Lua stack.
+ *
+ * This function is for debugging purposes.
+ * It always returns the same pointer.
+ *
+ * @param L the Lua state
+ * @param index index in the stack
+ * @return a string representation of the value at this index
+ */
+const char* sglua_tostring(lua_State* L, int index)
+{
+
+ static char buff[64];
+
+ switch (lua_type(L, index)) {
+
+ case LUA_TNIL:
+ snprintf(buff, 4, "nil");
+ break;
+
+ case LUA_TNUMBER:
+ snprintf(buff, 64, "%.3f", lua_tonumber(L, index));
+ break;
+
+ case LUA_TBOOLEAN:
+ snprintf(buff, 64, "%s", lua_toboolean(L, index) ? "true" : "false");
+ break;
+
+ case LUA_TSTRING:
+ snprintf(buff, 63, "'%s'", lua_tostring(L, index));
+ break;
+
+ case LUA_TFUNCTION:
+ if (lua_iscfunction(L, index)) {
+ snprintf(buff, 11, "C-function");
+ } else {
+ snprintf(buff, 9, "function");
+ }
+ break;
+
+ case LUA_TTABLE:
+ snprintf(buff, 64, "table(%p)", lua_topointer(L, index));
+ break;
+
+ case LUA_TLIGHTUSERDATA:
+ case LUA_TUSERDATA:
+ snprintf(buff, 64, "userdata(%p)", lua_touserdata(L, index));
+ break;
+
+ case LUA_TTHREAD:
+ snprintf(buff, 7, "thread");
+ break;
+
+ default:
+ snprintf(buff, 64, "unknown(%d)", lua_type(L, index));
+ break;
+ }
+ return buff;
+}
+
+/**
+ * @brief Returns a string representation of a key-value pair.
+ *
+ * It always returns the same pointer.
+ *
+ * @param L the Lua state
+ * @param key_index index of the key (in the lua stack)
+ * @param value_index index of the value (in the lua stack)
+ * @return a string representation of the key-value pair
+ */
+const char* sglua_keyvalue_tostring(lua_State* L, int key_index, int value_index)
+{
+
+ static char buff[64];
+ /* value_tostring also always returns the same pointer */
+ int len = snprintf(buff, 63, "[%s] -> ", sglua_tostring(L, key_index));
+ snprintf(buff + len, 63 - len, "%s", sglua_tostring(L, value_index));
+ return buff;
+}
