X-Git-Url: https://plomlompom.com/repos/index.html?a=blobdiff_plain;f=src%2Fserver%2Fio.c;h=b5a6871a2ad28e8500042ce034fd52d3b2408b80;hb=3dce2a1d9dd93db625c81b09309d9ae0b612dbbb;hp=2507d3b1e3e3a0faee7842261e1f572e8927fedc;hpb=cdb90723dd636591bcfa98ebb165cf74a0cdeec7;p=plomrogue
diff --git a/src/server/io.c b/src/server/io.c
index 2507d3b..b5a6871 100644
--- a/src/server/io.c
+++ b/src/server/io.c
@@ -1,26 +1,41 @@
/* src/server/io.c */
+#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 /* 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;
+ }
}
}
}
- uint8_t x, y;
- for (y = 0; y < world.map.size.y; y++)
+ 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.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);
+}