X-Git-Url: https://plomlompom.com/repos/?a=blobdiff_plain;f=src%2Fserver%2Fio.c;h=9e55b0114d436b6b5f096af6a27d9638cf83785d;hb=3fb2cb493ae564f8b14ddb4143b6c1f5bf16f16a;hp=177c2952faca109802c355b36eb8c22d6a1607ef;hpb=eb96a1dfe83cef7f3d1c0c73e03b915caca09db8;p=plomrogue diff --git a/src/server/io.c b/src/server/io.c index 177c295..9e55b01 100644 --- a/src/server/io.c +++ b/src/server/io.c @@ -1,241 +1,440 @@ -/* src/server/io.c */ +/* 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 /* global errno */ -#include /* open(), O_RDONLY, O_NONBLOCK */ #include /* PIPE_BUF */ -#include /* size_t, NULL */ -#include /* uint8_t, uint32_t */ -#include /* define FILE, sprintf() */ +#include /* NULL */ +#include /* uint8_t, uint16_t, uint32_t, int32_t, UINT8_MAX */ +#include /* defines FILE, sprintf(), fprintf() */ #include /* free() */ -#include /* strlen(), memset(), memcpy() */ -#include /* read(), close() */ -#include "../common/readwrite.h" /* try_fopen(), try_fclose_unlink_rename(), - * try_fwrite(), try_fputc() +#include /* strlen(), snprintf(), memcpy(), strchr() */ +#include /* time_t */ +#include /* 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 "map_objects.h" /* structs MapObj, MapObjDef, get_map_obj_def() */ +#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 */ -/* Cut out and return first \0-terminated string from world.queue and - * appropriately reduce world.queue_size. Return NULL if queue is empty. - * Superfluous \0 bytes after the string are also cut out. Should the queue - * start with \0 bytes, those are cut out, but NULL is returned instead of "". -*/ -static char * get_message_from_queue(); +/* 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); -/* Read fifo input to put into queue. Only stop reading when bytes were received - * and the receiving has stopped. Read max. PIPE_BUF-sized chunks for atomicity. +/* 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 read_fifo_into_queue(); +static void try_growing_queue(); -/* Write to output file the world state as it is to be visible to clients. */ -static void update_out_file(); +/* 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(uint32_t value, FILE * 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 MapObj * player, FILE * file); +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, with map objects super-imposed. Write one row per - * \n-delimited line. Super-impose animated objects over inanimate objects. +/* 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(FILE * file); +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 char * get_message_from_queue() +static void write_uvalue(FILE * file, uint32_t value) { - char * f_name = "get_message_from_queue()"; - char * message = NULL; - size_t cutout_len = strlen(world.queue); - if (0 < cutout_len) + 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) +{ + uint8_t contains_space = NULL != strchr(string, ' '); + if (contains_space) { - cutout_len++; - message = try_malloc(cutout_len, f_name); - memcpy(message, world.queue, cutout_len); + try_fputc('\'', file, __func__); } - for (; - cutout_len != world.queue_size && '\0' == world.queue[cutout_len]; - cutout_len++); - world.queue_size = world.queue_size - cutout_len; - if (0 == world.queue_size) + try_fwrite(string, strlen(string), 1, file, __func__); + if (contains_space) { - free(world.queue); /* NULL so read_fifo_into_queue() may free() this */ - world.queue = NULL; /* every time, even when it's un-allocated first. */ + try_fputc('\'', file, __func__); } - else +} + + + +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) { - char * new_queue = try_malloc(world.queue_size, f_name); - memcpy(new_queue, &(world.queue[cutout_len]), world.queue_size); - free(world.queue); - world.queue = new_queue; + 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); } - return message; } -static void read_fifo_into_queue() +static void write_thing(FILE * file, struct Thing * t) { - char * f_name = "read_fifo_into_queue()"; - uint32_t buf_size = PIPE_BUF; - int fdesc_infile = open(world.path_in, O_RDONLY | O_NONBLOCK); - exit_trouble(-1 == fdesc_infile, "open()", f_name); - char buf[buf_size]; - memset(buf, 0, buf_size); - int bytes_read; - uint8_t read_state = 0; /* 0: waiting for input. 1: started receiving it. */ + 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); + write_key_space_uvalue(file, s[S_CMD_T_TYPE], t->type); + 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_COMMAND], t->command); + write_key_space_uvalue(file, s[S_CMD_T_ARGUMENT], t->arg); + write_key_space_uvalue(file, s[S_CMD_T_PROGRESS], t->progress); + write_key_space_uvalue(file, s[S_CMD_T_HP], t->lifepoints); + write_key_space_svalue(file, s[S_CMD_T_SATIATION], t->satiation); + for (o = t->owns; o; o = o->next) + { + write_key_space_uvalue(file, s[S_CMD_T_CARRIES], o->id); + } + write_mem_map(file, t->mem_depth_map, s[S_CMD_T_MEMDEPTHMAP]); + write_mem_map(file, t->mem_map, s[S_CMD_T_MEMMAP]); + 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__); + } + try_fputc('\n', file, __func__); +} + + + +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) { - bytes_read = read(fdesc_infile, buf, buf_size); - if (bytes_read > 0) + if (read_file_into_queue(world.file_in, &world.queue)) { - read_state = 1; - uint32_t old_queue_size = world.queue_size; - world.queue_size = world.queue_size + bytes_read; - char * new_queue = try_malloc(world.queue_size, f_name); - memcpy(new_queue, world.queue, old_queue_size); - memcpy(&(new_queue[old_queue_size]), buf, bytes_read); - free(world.queue); - world.queue = new_queue; - memset(buf, 0, buf_size); - continue; + return; } - exit_trouble(-1 == bytes_read && errno != EAGAIN, "read()", f_name); - if (1 == read_state) + nanosleep(&dur, NULL); + if (time(0) > now + wait_seconds) { - break; + return; } } - exit_trouble(close(fdesc_infile), f_name, "close()"); } -static void update_out_file() +static void update_worldstate_file() { - char * f_name = "update_out_file()"; - char path_tmp[strlen(world.path_out) + strlen(world.tmp_suffix) + 1]; - sprintf(path_tmp, "%s%s", world.path_out, world.tmp_suffix); - FILE * file = try_fopen(path_tmp, "w", f_name); - struct MapObj * player = get_player(); + 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.size.y, file); - write_value_as_line(world.map.size.x, file); - write_map(file); - if (world.log) - { - try_fwrite(world.log, strlen(world.log), 1, file, f_name); - } - try_fclose_unlink_rename(file, path_tmp, world.path_out, f_name); - set_cleanup_flag(CLEANUP_OUTFILE); + 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(uint32_t value, FILE * file) +static void write_value_as_line(int32_t value, FILE * file) { - char * f_name = "write_value_as_line()"; - char write_buf[12]; /* Holds 10 digits of uint32_t maximum + \n + \0. */ - sprintf(write_buf, "%u\n", value); - try_fwrite(write_buf, strlen(write_buf), 1, file, f_name); + 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 MapObj * player, FILE * file) +static void write_inventory(struct Thing * player, FILE * file) { - char * f_name = "write_inventory()"; - struct MapObj * owned = player->owns; - if (NULL == owned) + struct Thing * owned = player->owns; + if (!owned) { char * empty = "(none)\n"; - try_fwrite(empty, strlen(empty), 1, file, f_name); + try_fwrite(empty, strlen(empty), 1, file, __func__); } else { uint8_t q; - for (q = 0; NULL != owned; q++) + for (q = 0; owned; q++) { - struct MapObjDef * mod = get_map_object_def(owned->type); - try_fwrite(mod->name, strlen(mod->name), 1, file, f_name); - try_fputc('\n', file, f_name); + 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, f_name); - try_fputc('\n', file, f_name); + try_fputc('%', file, __func__); + try_fputc('\n', file, __func__); } -static void write_map(FILE * file) +static char * build_visible_map(struct Thing * player) { - char * f_name = "write_map()"; - uint32_t map_size = world.map.size.y * world.map.size.x; - char visible_map[map_size]; - memcpy(visible_map, world.map.cells, map_size); - struct MapObj * o; - struct MapObjDef * d; - char c; + 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 (o = world.map_objs; o != 0; o = o->next) + for (tm = player->t_mem; tm; tm = tm->next) { - if (( (0 == i && 0 == o->lifepoints) - || (1 == i && 0 < o->lifepoints))) + if (' ' != player->mem_map[tm->pos.y*world.map.length+tm->pos.x]) { - d = get_map_object_def(o->type); - c = d->char_on_map; - visible_map[(o->pos.y * world.map.size.x) + o->pos.x] = c; + 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; + } } } } - uint16_t x, y; - for (y = 0; y < world.map.size.y; y++) + for (y = 0; y < world.map.length; y++) { - for (x = 0; x < world.map.size.x; x++) + for (x = 0; x < world.map.length; x++) { - try_fputc(visible_map[(y * world.map.size.x) + x], file, f_name); + try_fputc(mem_map[y * world.map.length + x], file, __func__); } - try_fputc('\n', file, f_name); + try_fputc('\n', file, __func__); } + free(mem_map); } extern char * io_round() { - char * f_name = "io_round()"; - if (0 < world.queue_size) + 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_MAPLENGTH], world.map.length); + write_key_space_uvalue(file, s[S_CMD_PLAYTYPE], world.player_type); + try_fputc('\n', file, __func__); + 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); + try_fputc('\n', file, __func__); + } + struct ThingType * tt; + for (tt = world.thing_types; tt; tt = tt->next) { - return get_message_from_queue(); + 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); + write_key_space_uvalue(file, s[S_CMD_TT_HP], tt->lifepoints); + 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_CONSUM], tt->consumable); + write_key_space_uvalue(file, s[S_CMD_TT_PROL], tt->proliferate); + write_key_space_uvalue(file, s[S_CMD_TT_STOMACH], tt->stomach); + try_fputc('\n', file, __func__); } - if (world.turn != world.last_update_turn) + for (tt = world.thing_types; tt; tt = tt->next) { - update_out_file(); - world.last_update_turn = world.turn; + 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); } - read_fifo_into_queue(); - if ('\0' != world.queue[world.queue_size - 1]) + try_fputc('\n', file, __func__); + write_key_space_uvalue(file, s[S_CMD_SEED_MAP], world.seed_map); + write_key_space_uvalue(file, s[S_CMD_SEED_RAND], world.seed); + write_key_space_uvalue(file, s[S_CMD_TURN], world.turn); + try_fputc('\n', file, __func__); + struct Thing * t; + for (t = world.things; t; t = t->next) { - char * new_queue = try_malloc(world.queue_size + 1, f_name); - memcpy(new_queue, world.queue, world.queue_size); - new_queue[world.queue_size] = '\0'; - world.queue_size++; - free(world.queue); - world.queue = new_queue; + write_thing(file, t); } - return get_message_from_queue(); + write_key_space_uvalue(file, s[S_CMD_WORLD_ACTIVE], 1); + atomic_write_finish(file, s[S_PATH_SAVE], path_tmp); }