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45 lines
1.8 KiB
C
45 lines
1.8 KiB
C
/* SSNES - A Super Nintendo Entertainment System (SNES) Emulator frontend for libsnes.
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* Copyright (C) 2010-2012 - Hans-Kristian Arntzen
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*
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* Some code herein may be based on code found in BSNES.
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*
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* SSNES is free software: you can redistribute it and/or modify it under the terms
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* of the GNU General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* SSNES is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with SSNES.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __SSNES_MSG_QUEUE_H
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#define __SSNES_MSG_QUEUE_H
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#include <stddef.h>
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typedef struct msg_queue msg_queue_t;
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// Creates a message queue with maximum size different messages. Returns NULL if allocation error.
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msg_queue_t *msg_queue_new(size_t size);
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// Higher prio is... higher prio :) Duration is how many times a message can be pulled from queue before it vanishes. (E.g. show a message for 3 seconds @ 60fps = 180 duration).
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void msg_queue_push(msg_queue_t *queue, const char *msg, unsigned prio, unsigned duration);
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// Pulls highest prio message in queue. Returns NULL if no message in queue.
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const char *msg_queue_pull(msg_queue_t *queue);
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// Pushes and pulls in a FIFO fashion, duration is fixed to one frame, prio doesn't matter.
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void msg_queue_push_simple(msg_queue_t *queue, const char *msg);
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const char *msg_queue_pull_simple(msg_queue_t *queue);
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// Clear out everything in queue.
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void msg_queue_clear(msg_queue_t *queue);
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void msg_queue_free(msg_queue_t *queue);
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#endif
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