move file sender stuff to its own files

src/file_senders.c

@@ -0,0 +1,109 @@
+/*  file_senders.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 <string.h>
+#include <stdlib.h>
+#include <time.h>
+
+#include "toxic_windows.h"
+
+FileSender file_senders[MAX_FILES];
+uint8_t max_file_senders_index;
+
+static void close_file_sender(int i)
+{
+    fclose(file_senders[i].file);
+    memset(&file_senders[i], 0, sizeof(FileSender));
+
+    int j;
+
+    for (j = max_file_senders_index; j > 0; --j) {
+        if (file_senders[j-1].active)
+            break;
+    }
+
+    max_file_senders_index = j;
+}
+
+/* Should only be called on exit */
+void close_all_file_senders(void)
+{
+    int i;
+
+    for (i = 0; i < max_file_senders_index; ++i) {
+        if (file_senders[i].active)
+            fclose(file_senders[i].file);
+    }
+}
+
+void do_file_senders(Tox *m)
+{
+    int i;
+
+    for (i = 0; i < max_file_senders_index; ++i) {
+        if (!file_senders[i].active)
+            continue;
+
+        uint8_t *pathname = file_senders[i].pathname;
+        uint8_t filenum = file_senders[i].filenum;
+        int friendnum = file_senders[i].friendnum;
+        FILE *fp = file_senders[i].file;
+        uint64_t current_time = (uint64_t) time(NULL);
+
+        /* If file transfer has timed out kill transfer and send kill control */
+        if (timed_out(file_senders[i].timestamp, current_time, TIMEOUT_FILESENDER)) {
+            ChatContext *ctx = file_senders[i].toxwin->chatwin;
+
+            if (ctx != NULL) {
+                wprintw(ctx->history, "File transfer for '%s' timed out.\n", pathname);
+                alert_window(file_senders[i].toxwin, WINDOW_ALERT_2, true);
+            }
+
+            tox_file_send_control(m, friendnum, 0, filenum, TOX_FILECONTROL_KILL, 0, 0);
+            close_file_sender(i);
+            continue;
+        }
+
+        while (true) {
+            if (tox_file_send_data(m, friendnum, filenum, file_senders[i].nextpiece, 
+                                   file_senders[i].piecelen) == -1)
+                break;
+
+            file_senders[i].timestamp = current_time;
+            file_senders[i].piecelen = fread(file_senders[i].nextpiece, 1, 
+                                             tox_file_data_size(m, friendnum), fp);
+
+            if (file_senders[i].piecelen == 0) {
+                ChatContext *ctx = file_senders[i].toxwin->chatwin;
+
+                if (ctx != NULL) {
+                    wprintw(ctx->history, "File '%s' successfuly sent.\n", pathname);
+                    alert_window(file_senders[i].toxwin, WINDOW_ALERT_2, true);
+                }
+
+                tox_file_send_control(m, friendnum, 0, filenum, TOX_FILECONTROL_FINISHED, 0, 0);
+                close_file_sender(i);
+                break;
+            }
+        }
+    }
+}