From: Tomas Mudrunka <tomas@mudrunka.cz>
Date: Tue, 29 Jun 2021 12:22:10 +0000 (+0200)
Subject: Vacant
X-Git-Url: https://git.harvie.cz/?a=commitdiff_plain;h=77c7dc7ffcaa64879e90178df5585f22790f46be;p=mirrors%2FPrograms.git

Vacant
---

diff --git a/c/pthread_extra/pthread_extra.h b/c/pthread_extra/pthread_extra.h
index 0652e0a..861b847 100644
--- a/c/pthread_extra/pthread_extra.h
+++ b/c/pthread_extra/pthread_extra.h
@@ -64,11 +64,14 @@ typedef struct pthread_mq_t {
 
 bool pthread_mq_init(pthread_mq_t *mq, size_t msg_size, size_t msg_count_max);
 void pthread_mq_free(pthread_mq_t *mq);
-size_t pthread_mq_waiting(pthread_mq_t *mq);
+
 bool pthread_mq_reset(pthread_mq_t *mq);
 bool pthread_mq_send_generic(pthread_mq_t *mq, void * data, bool to_front, const struct timespec *restrict abs_timeout);
 bool pthread_mq_receive_generic(pthread_mq_t *mq, void * data, bool peek, const struct timespec *restrict abs_timeout);
 
+size_t pthread_mq_waiting(pthread_mq_t *mq);
+size_t pthread_mq_vacant(pthread_mq_t *mq);
+
 // Multi mutex locking
 
 #define pthread_mutex_swap(a, b) { pthread_mutex_t *s; s = (a); a = (b); b = s; }
diff --git a/c/pthread_extra/pthread_msgqueue.c b/c/pthread_extra/pthread_msgqueue.c
index ff1a37f..b856296 100644
--- a/c/pthread_extra/pthread_msgqueue.c
+++ b/c/pthread_extra/pthread_msgqueue.c
@@ -39,6 +39,10 @@ size_t pthread_mq_waiting(pthread_mq_t *mq) {
 	return mq->msg_count;
 }
 
+size_t pthread_mq_vacant(pthread_mq_t *mq) {
+	return (mq->msg_count_max - mq->msg_count);
+}
+
 bool pthread_mq_reset(pthread_mq_t *mq) {
 	if(pthread_mutex_lock(&mq->lock)) return false;
 	mq->msg_count = 0;