-/* 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 <errno.h> /* global errno */
#include <limits.h> /* PIPE_BUF */
-#include <stddef.h> /* size_t, NULL */
+#include <stddef.h> /* NULL */
#include <stdint.h> /* uint8_t, uint16_t, uint32_t, UINT8_MAX */
-#include <stdio.h> /* defines EOF, FILE, sprintf(), fprintf() */
+#include <stdio.h> /* defines FILE, sprintf(), fprintf() */
#include <stdlib.h> /* free() */
#include <string.h> /* strlen(), snprintf(), memcpy(), memset(), strchr() */
#include <sys/types.h> /* time_t */
#include <time.h> /* time(), nanosleep() */
#include "../common/readwrite.h" /* atomic_write_start(), atomic_write_finish(),
- * try_fwrite(), try_fputc(), try_fgetc()
+ * 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 "run.h" /* send_to_outfile() */
#include "things.h" /* Thing, ThingType, ThingInMemory, ThingAction,
* get_thing_type(), get_player()
*/
/* 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
- * start with \0 bytes, those are cut out, but NULL is returned instead of "".
-*/
-static char * get_message_from_queue();
-
/* 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'.
+ * poll only every 0.03 seconds. Translate '\n' chars in input file into '\0'.
*/
-static void read_file_into_queue();
+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 char * get_message_from_queue()
-{
- char * message = NULL;
- if (world.queue_size)
- {
- size_t cutout_len = strlen(world.queue);
- if (0 < cutout_len)
- {
- 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;
- }
- }
- return message;
-}
-
-
-
-static void read_file_into_queue()
+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;
- int test;
- while (EOF == (test = try_fgetc(world.file_in, __func__)))
+ while (1)
{
- nanosleep(&dur, NULL);
- if (time(0) > now + wait_seconds)
+ if (read_file_into_queue(world.file_in, &world.queue))
{
return;
}
- }
- do
- {
- char c = (char) test;
- if ('\n' == c)
+ nanosleep(&dur, NULL);
+ if (time(0) > now + wait_seconds)
{
- c = '\0';
+ return;
}
- 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__)));
}
write_value_as_line(player->pos.x, 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, __func__);
- }
atomic_write_finish(file, s[S_PATH_WORLDSTATE], path_tmp);
set_cleanup_flag(CLEANUP_WORLDSTATE);
char * dot = ".\n";
static void write_inventory(struct Thing * player, FILE * file)
{
struct Thing * owned = player->owns;
- if (NULL == owned)
+ if (!owned)
{
char * empty = "(none)\n";
try_fwrite(empty, strlen(empty), 1, file, __func__);
else
{
uint8_t q;
- for (q = 0; NULL != owned; q++)
+ for (q = 0; owned; q++)
{
struct ThingType * tt = get_thing_type(owned->type);
try_fwrite(tt->name, strlen(tt->name), 1, file, __func__);
struct ThingInMemory * tm;
for (i = 0; i < 2; i++)
{
- for (tm = player->t_mem; tm != NULL; tm = tm->next)
+ for (tm = player->t_mem; tm; tm = tm->next)
{
if (' ' != player->mem_map[tm->pos.y*world.map.length+tm->pos.x])
{
extern char * io_round()
{
- if (0 < world.queue_size)
+ if (world.queue && strlen(world.queue))
{
- return get_message_from_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;
}
- read_file_into_queue();
- if (world.queue_size && '\0' != world.queue[world.queue_size - 1])
- {
- 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++;
- free(world.queue);
- world.queue = new_queue;
- }
- return get_message_from_queue();
+ try_growing_queue();
+ return get_message_from_queue(&world.queue);
}
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);
+ write_key_space_value(file, s[S_CMD_TT_PROL], tt->proliferate);
try_fputc('\n', file, __func__);
}
for (tt = world.thing_types; tt; tt = tt->next)
projects / plomrogue / blobdiff