+++ /dev/null
-/* src/server/io.c
- *
- * This file is part of PlomRogue. PlomRogue is licensed under the GPL version 3
- * or any later version. For details on its copyright, license, and warranties,
- * see the file NOTICE in the root directory of the PlomRogue source package.
- */
-
-#define _POSIX_C_SOURCE 200112L /* snrpintf() */
-#include "io.h"
-#include <errno.h> /* global errno */
-#include <limits.h> /* PIPE_BUF */
-#include <stddef.h> /* NULL */
-#include <stdint.h> /* uint8_t, uint16_t, uint32_t, int32_t, UINT8_MAX */
-#include <stdio.h> /* defines FILE, sprintf(), fprintf() */
-#include <stdlib.h> /* free() */
-#include <string.h> /* strlen(), snprintf(), memcpy(), strchr() */
-#include <sys/types.h> /* time_t */
-#include <time.h> /* time(), nanosleep() */
-#include "../common/readwrite.h" /* atomic_write_start(), atomic_write_finish(),
- * get_message_from_queue(), try_fwrite(),
- * read_file_into_queue(), try_fputc()
- */
-#include "../common/rexit.h" /* exit_trouble() */
-#include "../common/try_malloc.h" /* try_malloc() */
-#include "cleanup.h" /* set_cleanup_flag() */
-#include "hardcoded_strings.h" /* s */
-#include "map.h" /* init_empty_map() */
-#include "run.h" /* send_to_outfile() */
-#include "things.h" /* Thing, ThingType, ThingInMemory, ThingAction,
- * get_thing_type(), get_player()
- */
-#include "world.h" /* global world */
-
-
-
-/* Helpers to write lines of god commands to recreate thing "t". */
-static void write_key_space(FILE * file, char * key);
-static void write_uvalue(FILE * file, uint32_t value);
-static void write_string(FILE * file, char * string);
-static void write_key_space_uvalue(FILE * file, char * key, uint32_t value);
-static void write_key_space_svalue(FILE * file, char * key, int32_t value);
-static void write_key_space_string(FILE * file, char * key, char * string);
-
-/* Write to "file" game-map-sized "map" in "command"-prefixed numbered lines. */
-static void write_mem_map(FILE * file, char * map, char * command);
-
-/* Write to "file" \n-delimited line of "key" + space + "value" as string. */
-static void write_thing(FILE * file, struct Thing * t);
-
-/* Poll input file for world.queue input. Wait a few seconds until giving up;
- * poll only every 0.03 seconds. Translate '\n' chars in input file into '\0'.
- */
-static void try_growing_queue();
-
-/* Write world state as visible to clients to its file. Write single dot line to
- * server output file to satisfy client ping mechanisms.
- */
-static void update_worldstate_file();
-
-/* Write "value" to new \n-delimited line of "file". */
-static void write_value_as_line(int32_t value, FILE * file);
-
-/* Write to "file" player's inventory, one item name per line. End in "%\n". */
-static void write_inventory(struct Thing * player, FILE * file);
-
-/* Return map cells sequence as visible to the "player", with invisible cells as
- * whitespace. Super-impose over visible map cells things positioned there,
- * with animate things overwriting inanimate things, and inanimate consumable
- * things overwriting inanimate non-consumable things.
- */
-static char * build_visible_map(struct Thing * player);
-
-/* Write to "file" game map as visible to "player" right now, as drawn by
- * build_visible_map(), and thereafter game map as memorized by player in its
- * .mem_map and .t_mem. Write one row per \n-delimited line.
- */
-static void write_map(struct Thing * player, FILE * file);
-
-
-
-static void write_key_space(FILE * file, char * key)
-{
- try_fwrite(key, strlen(key), 1, file, __func__);
- try_fputc(' ', file, __func__);
-}
-
-
-
-static void write_uvalue(FILE * file, uint32_t value)
-{
- char * line = try_malloc(11, __func__);
- exit_trouble(-1 == sprintf(line, "%u", value), __func__, s[S_FCN_SPRINTF]);
- try_fwrite(line, strlen(line), 1, file, __func__);
- free(line);
-}
-
-
-
-static void write_string(FILE * file, char * string)
-{
- try_fputc('\'', file, __func__);
- try_fwrite(string, strlen(string), 1, file, __func__);
- try_fputc('\'', file, __func__);
-}
-
-
-
-static void write_key_space_uvalue(FILE * file, char * key, uint32_t value)
-{
- write_key_space(file, key);
- write_uvalue(file, value);
- try_fputc('\n', file, __func__);
-}
-
-
-
-static void write_key_space_svalue(FILE * file, char * key, int32_t value)
-{
- write_key_space(file, key);
- char * line = try_malloc(11, __func__);
- exit_trouble(-1 == sprintf(line, "%d", value), __func__, s[S_FCN_SPRINTF]);
- try_fwrite(line, strlen(line), 1, file, __func__);
- free(line);
- try_fputc('\n', file, __func__);
-}
-
-
-
-static void write_key_space_string(FILE * file, char * key, char * string)
-{
- write_key_space(file, key);
- write_string(file, string);
- try_fputc('\n', file, __func__);
-}
-
-
-
-static void write_mem_map(FILE * file, char * map, char * command)
-{
- if (map)
- {
- uint32_t map_size = world.map.length * world.map.length;/* snprintf() */
- char * map_copy = try_malloc(map_size + 1, __func__); /* reads one */
- memcpy(map_copy, map, map_size); /* byte beyond map_size */
- map_copy[map_size] = '\0'; /* if string is not \0-terminated. */
- uint16_t y;
- char string[UINT8_MAX + 1 + 1];
- for (y = 0; y < world.map.length; y++)
- {
- int test = snprintf(string, world.map.length + 1, "%s",
- map_copy + (y * world.map.length));
- exit_trouble(test < 0, __func__, "snprintf()");
- write_key_space(file, command);
- write_uvalue(file, y);
- try_fputc(' ', file, __func__);
- write_string(file, string);
- try_fputc('\n', file, __func__);
- }
- free(map_copy);
- }
-}
-
-
-
-static void write_thing(FILE * file, struct Thing * t)
-{
- struct Thing * o;
- for (o = t->owns; o; o = o->next)
- {
- write_thing(file, o);
- }
- write_key_space_uvalue(file, s[S_CMD_T_ID], t->id);
- struct ThingInMemory * tm = t->t_mem;
- for (; tm; tm = tm->next)
- {
- write_key_space(file, s[S_CMD_T_MEMTHING]);
- write_uvalue(file, tm->type);
- try_fputc(' ', file, __func__);
- write_uvalue(file, tm->pos.y);
- try_fputc(' ', file, __func__);
- write_uvalue(file, tm->pos.x);
- try_fputc('\n', file, __func__);
- }
- write_key_space_uvalue(file, s[S_CMD_T_COMMAND], t->command);
- write_key_space_uvalue(file, s[S_CMD_T_HP], t->lifepoints);
- write_key_space_uvalue(file, s[S_CMD_T_TYPE], t->type);
- write_key_space_uvalue(file, s[S_CMD_T_ARGUMENT], t->arg);
- write_key_space_uvalue(file, s[S_CMD_T_POSY], t->pos.y);
- write_key_space_uvalue(file, s[S_CMD_T_POSX], t->pos.x);
- write_key_space_uvalue(file, s[S_CMD_T_PROGRESS], t->progress);
- write_mem_map(file, t->mem_depth_map, s[S_CMD_T_MEMDEPTHMAP]);
- write_key_space_svalue(file, s[S_CMD_T_SATIATION], t->satiation);
- write_mem_map(file, t->mem_map, s[S_CMD_T_MEMMAP]);
-}
-
-
-
-static void write_thing_carrying(FILE * file, struct Thing * t)
-{
- if (t->owns)
- {
- write_key_space_uvalue(file, s[S_CMD_T_ID], t->id);
- struct Thing * o;
- for (o = t->owns; o; o = o->next)
- {
- write_key_space_uvalue(file, s[S_CMD_T_CARRIES], o->id);
- }
- }
-}
-
-
-
-static void try_growing_queue()
-{
- uint8_t wait_seconds = 5;
- time_t now = time(0);
- struct timespec dur;
- dur.tv_sec = 0;
- dur.tv_nsec = 33333333;
- while (1)
- {
- if (read_file_into_queue(world.file_in, &world.queue))
- {
- return;
- }
- nanosleep(&dur, NULL);
- if (time(0) > now + wait_seconds)
- {
- return;
- }
- }
-}
-
-
-
-static void update_worldstate_file()
-{
- char * path_tmp;
- FILE * file = atomic_write_start(s[S_PATH_WORLDSTATE], &path_tmp);
- struct Thing * player = get_player();
- write_value_as_line(world.turn, file);
- write_value_as_line(player->lifepoints, file);
- write_value_as_line(player->satiation, file);
- write_inventory(player, file);
- write_value_as_line(player->pos.y, file);
- write_value_as_line(player->pos.x, file);
- write_value_as_line(world.map.length, file);
- write_map(player, file);
- atomic_write_finish(file, s[S_PATH_WORLDSTATE], path_tmp);
- set_cleanup_flag(CLEANUP_WORLDSTATE);
- char * dot = ".\n";
- try_fwrite(dot, strlen(dot), 1, world.file_out, __func__);
- fflush(world.file_out);
-}
-
-
-
-static void write_value_as_line(int32_t value, FILE * file)
-{
- char write_buf[13]; /* Hold "+"/"-" + 10 digits of int32_t max + \n + \0. */
- exit_trouble(sprintf(write_buf,"%u\n",value) < 0,__func__,s[S_FCN_SPRINTF]);
- try_fwrite(write_buf, strlen(write_buf), 1, file, __func__);
-}
-
-
-
-static void write_inventory(struct Thing * player, FILE * file)
-{
- struct Thing * owned = player->owns;
- if (!owned)
- {
- char * empty = "(none)\n";
- try_fwrite(empty, strlen(empty), 1, file, __func__);
- }
- else
- {
- uint8_t q;
- for (q = 0; owned; q++)
- {
- struct ThingType * tt = get_thing_type(owned->type);
- try_fwrite(tt->name, strlen(tt->name), 1, file, __func__);
- try_fputc('\n', file, __func__);
- owned = owned->next;
- }
- }
- try_fputc('%', file, __func__);
- try_fputc('\n', file, __func__);
-}
-
-
-
-static char * build_visible_map(struct Thing * player)
-{
- char * visible_map;
- init_empty_map(&visible_map);
- if (player->fov_map) /* May fail if player thing was created / positioned */
- { /* by god command after turning off FOV building. */
- uint32_t pos_i = 0;
- for (; pos_i < (uint32_t) world.map.length * world.map.length; pos_i++)
- {
- if (player->fov_map[pos_i] == 'v')
- {
- visible_map[pos_i] = world.map.cells[pos_i];
- }
- }
- struct Thing * t;
- char c;
- uint8_t i;
- for (i = 0; i < 3; i++)
- {
- for (t = world.things; t != 0; t = t->next)
- {
- if ('v' == player->fov_map[t->pos.y*world.map.length+t->pos.x])
- {
- struct ThingType * tt = get_thing_type(t->type);
- if ( (0 == i && !t->lifepoints && !tt->consumable)
- || (1 == i && !t->lifepoints && tt->consumable)
- || (2 == i && t->lifepoints))
- {
- c = tt->char_on_map;
- visible_map[t->pos.y * world.map.length + t->pos.x] = c;
- }
- }
- }
- }
- }
- return visible_map;
-}
-
-
-
-static void write_map(struct Thing * player, FILE * file)
-{
- char * visible_map = build_visible_map(player);
- uint16_t x, y;
- for (y = 0; y < world.map.length; y++)
- {
- for (x = 0; x < world.map.length; x++)
- {
- try_fputc(visible_map[y * world.map.length + x], file, __func__);
- }
- try_fputc('\n', file, __func__);
- }
- free(visible_map);
- uint32_t map_size = world.map.length * world.map.length;
- char * mem_map = try_malloc(map_size, __func__);
- memcpy(mem_map, player->mem_map, map_size);
- uint8_t i;
- struct ThingInMemory * tm;
- for (i = 0; i < 2; i++)
- {
- for (tm = player->t_mem; tm; tm = tm->next)
- {
- if (' ' != player->mem_map[tm->pos.y*world.map.length+tm->pos.x])
- {
- struct ThingType * tt = get_thing_type(tm->type);
- if ( (0 == i && !tt->consumable)
- || (1 == i && tt->consumable))
- {
- char c = tt->char_on_map;
- mem_map[tm->pos.y * world.map.length + tm->pos.x] = c;
- }
- }
- }
- }
- for (y = 0; y < world.map.length; y++)
- {
- for (x = 0; x < world.map.length; x++)
- {
- try_fputc(mem_map[y * world.map.length + x], file, __func__);
- }
- try_fputc('\n', file, __func__);
- }
- free(mem_map);
-}
-
-
-
-extern char * io_round()
-{
- if (world.queue && strlen(world.queue))
- {
- return get_message_from_queue(&world.queue);
- }
- if (world.do_update)
- {
- update_worldstate_file();
- send_to_outfile("WORLD_UPDATED\n", 1);
- world.do_update = 0;
- }
- try_growing_queue();
- return get_message_from_queue(&world.queue);
-}
-
-
-
-extern void save_world()
-{
- char * path_tmp;
- FILE * file = atomic_write_start(s[S_PATH_SAVE], &path_tmp);
- write_key_space_uvalue(file, s[S_CMD_TURN], world.turn);
- write_key_space_uvalue(file, s[S_CMD_PLAYTYPE], world.player_type);
- write_key_space_uvalue(file, s[S_CMD_MAPLENGTH], world.map.length);
- write_key_space_uvalue(file, s[S_CMD_SEED_MAP], world.seed_map);
- struct ThingAction * ta;
- for (ta = world.thing_actions; ta; ta = ta->next)
- {
- write_key_space_uvalue(file, s[S_CMD_TA_ID], ta->id);
- write_key_space_uvalue(file, s[S_CMD_TA_EFFORT], ta->effort);
- write_key_space_string(file, s[S_CMD_TA_NAME], ta->name);
- }
- struct ThingType * tt;
- for (tt = world.thing_types; tt; tt = tt->next)
- {
- write_key_space_uvalue(file, s[S_CMD_TT_ID], tt->id);
- write_key_space_uvalue(file, s[S_CMD_TT_STARTN], tt->start_n);
- int test = fprintf(file, "%s '%c'\n", s[S_CMD_TT_SYMB], tt->char_on_map);
- exit_trouble(test < 0, __func__, "fprintf");
- write_key_space_string(file, s[S_CMD_TT_NAME], tt->name);
- write_key_space_uvalue(file, s[S_CMD_TT_PROL], tt->proliferate);
- write_key_space_uvalue(file, s[S_CMD_TT_HP], tt->lifepoints);
- write_key_space_uvalue(file, s[S_CMD_TT_CONSUM], tt->consumable);
- }
- for (tt = world.thing_types; tt; tt = tt->next)
- {
- write_key_space_uvalue(file, s[S_CMD_TT_ID], tt->id);
- write_key_space_uvalue(file, s[S_CMD_TT_CORPS], tt->corpse_id);
- }
- struct Thing * t;
- for (t = world.things; t; t = t->next)
- {
- write_thing(file, t);
- }
- for (t = world.things; t; t = t->next)
- {
- write_thing_carrying(file, t);
- }
- write_key_space_uvalue(file, s[S_CMD_SEED_RAND], world.seed);
- write_key_space_uvalue(file, s[S_CMD_WORLD_ACTIVE], 1);
- atomic_write_finish(file, s[S_PATH_SAVE], path_tmp);
-}
projects / plomrogue / blobdiff