message sending queue for fake offline messaging

src/message_queue.c

@@ -0,0 +1,87 @@
+/*  message_queue.c
+ *
+ *
+ *  Copyright (C) 2014 Toxic All Rights Reserved.
+ *
+ *  This file is part of Toxic.
+ *
+ *  Toxic is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  Toxic is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with Toxic.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include <stdlib.h>
+
+#include "toxic.h"
+#include "windows.h"
+#include "message_queue.h"
+
+void cqueue_cleanup(struct chat_queue *q)
+{
+    struct cqueue_msg *tmp1 = q->root;
+
+    while (tmp1) {
+        struct cqueue_msg *tmp2 = tmp1->next;
+        free(tmp1);
+        tmp1 = tmp2;
+    }
+
+    free(q);
+}
+
+void cqueue_add(struct chat_queue *q, const char *msg, int len, uint8_t type, uint32_t line_id)
+{
+    struct cqueue_msg *new_m = malloc(sizeof(struct cqueue_msg));
+
+    if (new_m == NULL)
+        exit_toxic_err("failed in cqueue_message", FATALERR_MEMORY);
+
+    snprintf(new_m->message, sizeof(new_m->message), "%s", msg);
+    new_m->len = len;
+    new_m->type = type;
+    new_m->line_id = line_id;
+    new_m->next = NULL;
+
+    if (q->root == NULL)
+        q->root = new_m;
+    else
+        q->end->next = new_m;
+
+    q->end = new_m;
+}
+
+static void cqueue_remove(struct chat_queue *q)
+{
+    struct cqueue_msg *new_root = q->root->next;
+    free(q->root);
+    q->root = new_root;
+}
+
+void cqueue_try_send(Tox *m, struct chat_queue *q)
+{
+    if (q->root == NULL)
+        return;
+
+    struct cqueue_msg *q_msg = q->root;
+    uint32_t receipt;
+
+    if (q_msg->type == QMESSAGE)
+        receipt = tox_send_message(m, q->friendnum, (uint8_t *) q_msg->message, q_msg->len);
+    else
+        receipt = tox_send_action(m, q->friendnum, (uint8_t *) q_msg->message, q_msg->len);
+
+    if (receipt == 0)
+        return;
+
+    cqueue_remove(q);
+}