X-Git-Url: https://plomlompom.com/repos/?a=blobdiff_plain;f=src%2Fserver%2Fio.c;h=70a010780c9a97ba866c3c88f8f296134e0fc7b0;hb=edebb2bf9aa780ee2f7006c1d2be9168564d34df;hp=817d54253c40f69edc2225ef7f53e4769d15e78b;hpb=316a56901b2249264b72992fd5aa63ce16fd3304;p=plomrogue diff --git a/src/server/io.c b/src/server/io.c index 817d542..70a0107 100644 --- a/src/server/io.c +++ b/src/server/io.c @@ -1,26 +1,41 @@ /* src/server/io.c */ +#define _POSIX_C_SOURCE 199309L #include "io.h" #include /* global errno */ -#include /* open(), O_RDONLY, O_NONBLOCK */ #include /* PIPE_BUF */ #include /* size_t, NULL */ -#include /* uint8_t, uint16_t, uint32_t */ -#include /* define FILE, sprintf() */ +#include /* uint8_t, uint16_t, uint32_t, UINT8_MAX */ +#include /* defines EOF, 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(), memset(), strchr() */ +#include /* time_t */ +#include /* time(), nanosleep() */ +#include "../common/readwrite.h" /* atomic_write_start(), atomic_write_finish(), + * try_fwrite(), try_fputc(), try_fgetc() */ #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 "field_of_view.h" /* VISIBLE */ +#include "hardcoded_strings.h" /* s */ +#include "things.h" /* Thing, ThingType, 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_value(FILE * file, uint32_t value); +static void write_string(FILE * file, char * string); +static void write_key_space_value(FILE * file, char * key, uint32_t value); +static void write_key_space_string(FILE * file, char * key, char * string); + +/* Write to "file" \n-delimited line of "key" + space + "value" as string. */ +static void write_thing(FILE * file, struct Thing * t); + /* 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 @@ -28,189 +43,322 @@ */ static char * get_message_from_queue(); -/* 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 read_file_into_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); /* 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); -/* Write to "file" game map, with map objects super-imposed. Write one row per - * \n-delimited line. Super-impose animated objects over inanimate objects. +/* Return map cells sequence as visible to the "player", with invisible cells as + * whitespace. Super-impose over visible map cells things positioned there. */ -static void write_map(FILE * file); +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. Write one row per \n-delimited line. + */ +static void write_map(struct Thing * player, FILE * file); -static char * get_message_from_queue() + +static void write_key_space(FILE * file, char * key) { - char * f_name = "get_message_from_queue()"; - char * message = NULL; - size_t cutout_len = strlen(world.queue); - if (0 < cutout_len) + try_fwrite(key, strlen(key), 1, file, __func__); + try_fputc(' ', file, __func__); +} + + + +static void write_value(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) +{ + 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_value(FILE * file, char * key, uint32_t value) +{ + write_key_space(file, key); + write_value(file, value); + 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_thing(FILE * file, struct Thing * t) +{ + struct Thing * o; + for (o = t->owns; o; o = o->next) { - 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; + write_thing(file, o); } - return message; + write_key_space_value(file, s[S_CMD_T_ID], t->id); + write_key_space_value(file, s[S_CMD_T_TYPE], t->type); + write_key_space_value(file, s[S_CMD_T_POSY], t->pos.y); + write_key_space_value(file, s[S_CMD_T_POSX], t->pos.x); + write_key_space_value(file, s[S_CMD_T_COMMAND], t->command); + write_key_space_value(file, s[S_CMD_T_ARGUMENT], t->arg); + write_key_space_value(file, s[S_CMD_T_PROGRESS], t->progress); + write_key_space_value(file, s[S_CMD_T_HP], t->lifepoints); + for (o = t->owns; o; o = o->next) + { + write_key_space_value(file, s[S_CMD_T_CARRIES], o->id); + } + if (t->mem_map) + { + uint32_t map_size = world.map.length * world.map.length;/* snprintf() */ + char * mem_map_copy = try_malloc(map_size + 1, __func__);/* reads one */ + memcpy(mem_map_copy, t->mem_map, map_size); /* byte beyond map_size */ + mem_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", + mem_map_copy + (y * world.map.length)); + exit_trouble(test < 0, __func__, "snprintf()"); + write_key_space(file, s[S_CMD_T_MEMMAP]); + write_value(file, y); + try_fputc(' ', file, __func__); + write_string(file, string); + try_fputc('\n', file, __func__); + } + free(mem_map_copy); + } + try_fputc('\n', file, __func__); } -static void read_fifo_into_queue() +static char * get_message_from_queue() { - 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. */ - while (1) - { - bytes_read = read(fdesc_infile, buf, buf_size); - if (bytes_read > 0) + char * message = NULL; + if (world.queue_size) + { + size_t cutout_len = strlen(world.queue); + if (0 < cutout_len) { - 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); + cutout_len++; + message = try_malloc(cutout_len, __func__); + memcpy(message, world.queue, cutout_len); + } + 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) + { + free(world.queue); /* NULL so read_file_into_queue() may free() */ + world.queue = NULL; /* this every time, even when it's */ + } /* un-allocated first. */ + else + { + char * new_queue = try_malloc(world.queue_size, __func__); + memcpy(new_queue, &(world.queue[cutout_len]), world.queue_size); free(world.queue); world.queue = new_queue; - memset(buf, 0, buf_size); - continue; } - exit_trouble(-1 == bytes_read && errno != EAGAIN, "read()", f_name); - if (1 == read_state) + } + return message; +} + + + +static void read_file_into_queue() +{ + uint8_t wait_seconds = 5; + time_t now = time(0); + struct timespec dur; + dur.tv_sec = 0; + dur.tv_nsec = 33333333; + int test; + while (EOF == (test = try_fgetc(world.file_in, __func__))) + { + nanosleep(&dur, NULL); + if (time(0) > now + wait_seconds) { - break; + return; } } - exit_trouble(close(fdesc_infile), f_name, "close()"); + do + { + char c = (char) test; + if ('\n' == c) + { + c = '\0'; + } + char * new_queue = try_malloc(world.queue_size + 1, __func__); + memcpy(new_queue, world.queue, world.queue_size); + char * new_pos = new_queue + world.queue_size; + * new_pos = c; + world.queue_size++; + free(world.queue); + world.queue = new_queue; + } + while (EOF != (test = try_fgetc(world.file_in, __func__))); } -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(world.score, file); write_value_as_line(player->lifepoints, 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); + write_value_as_line(world.map.length, file); + write_map(player, file); if (world.log) { - try_fwrite(world.log, strlen(world.log), 1, file, f_name); + try_fwrite(world.log, strlen(world.log), 1, file, __func__); } - try_fclose_unlink_rename(file, path_tmp, world.path_out, f_name); - set_cleanup_flag(CLEANUP_OUTFILE); + 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) { - 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); + 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; + struct Thing * owned = player->owns; if (NULL == 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++) { - 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; - uint8_t i; - for (i = 0; i < 2; i++) - { - for (o = world.map_objs; o != 0; o = o->next) + uint32_t map_size = world.map.length * world.map.length; + char * visible_map = try_malloc(map_size, __func__); + memset(visible_map, ' ', map_size); + if (player->fov_map) /* May fail if player thing was created / positioned */ + { /* by god command after turning off FOV building. */ + uint32_t pos_i; + for (pos_i = 0; pos_i < map_size; pos_i++) + { + if (player->fov_map[pos_i] & VISIBLE) + { + visible_map[pos_i] = world.map.cells[pos_i]; + } + } + struct Thing * t; + struct ThingType * tt; + char c; + uint8_t i; + for (i = 0; i < 2; i++) { - if (( (0 == i && 0 == o->lifepoints) - || (1 == i && 0 < o->lifepoints))) + for (t = world.things; t != 0; t = t->next) { - 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; + if ( ( player->fov_map[t->pos.y * world.map.length +t->pos.x] + & VISIBLE) + && ( (0 == i && 0 == t->lifepoints) + || (1 == i && 0 < t->lifepoints))) + { + tt = get_thing_type(t->type); + 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.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(visible_map[y * world.map.length + x], file, __func__); } - try_fputc('\n', file, f_name); + try_fputc('\n', file, __func__); + } + free(visible_map); + for (y = 0; y < world.map.length; y++) + { + for (x = 0; x < world.map.length; x++) + { + try_fputc(player->mem_map[y * world.map.length + x], file, __func__); + } + try_fputc('\n', file, __func__); } } @@ -218,20 +366,19 @@ static void write_map(FILE * file) extern char * io_round() { - char * f_name = "io_round()"; if (0 < world.queue_size) { return get_message_from_queue(); } - if (world.turn != world.last_update_turn) + if (world.do_update) { - update_out_file(); - world.last_update_turn = world.turn; + update_worldstate_file(); + world.do_update = 0; } - read_fifo_into_queue(); - if ('\0' != world.queue[world.queue_size - 1]) + read_file_into_queue(); + if (world.queue_size && '\0' != world.queue[world.queue_size - 1]) { - char * new_queue = try_malloc(world.queue_size + 1, f_name); + char * new_queue = try_malloc(world.queue_size + 1, __func__); memcpy(new_queue, world.queue, world.queue_size); new_queue[world.queue_size] = '\0'; world.queue_size++; @@ -240,3 +387,51 @@ extern char * io_round() } return get_message_from_queue(); } + + + +extern void save_world() +{ + char * path_tmp; + FILE * file = atomic_write_start(s[S_PATH_SAVE], &path_tmp); + write_key_space_value(file, s[S_CMD_MAPLENGTH], world.map.length); + write_key_space_value(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_value(file, s[S_CMD_TA_ID], ta->id); + write_key_space_value(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) + { + write_key_space_value(file, s[S_CMD_TT_ID], tt->id); + write_key_space_value(file, s[S_CMD_TT_STARTN], tt->start_n); + write_key_space_value(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_value(file, s[S_CMD_TT_CONSUM], tt->consumable); + try_fputc('\n', file, __func__); + } + for (tt = world.thing_types; tt; tt = tt->next) + { + write_key_space_value(file, s[S_CMD_TT_ID], tt->id); + write_key_space_value(file, s[S_CMD_TT_CORPS], tt->corpse_id); + } + try_fputc('\n', file, __func__); + write_key_space_value(file, s[S_CMD_SEED_MAP], world.seed_map); + write_key_space_value(file, s[S_CMD_SEED_RAND], world.seed); + write_key_space_value(file, s[S_CMD_TURN], world.turn); + try_fputc('\n', file, __func__); + struct Thing * t; + for (t = world.things; t; t = t->next) + { + write_thing(file, t); + } + write_key_space_value(file, s[S_CMD_WORLD_ACTIVE], 1); + atomic_write_finish(file, s[S_PATH_SAVE], path_tmp); +}