Move logging/printing functions to src/print.c, fix compilation of itemz

[c128-kasse] / src / print.c

diff --git a/src/print.c b/src/print.c
new file mode 100644 (file)
index 0000000..edd295e
--- /dev/null
+++ b/src/print.c
@@ -0,0 +1,88 @@
+/*
+ * © 2007-2009 phil_fry, sECuRE, sur5r
+ * See LICENSE for license information
+ *
+ */
+#include <stdio.h>
+#include <conio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <cbm.h>
+
+#include "general.h"
+#define _IS_PRINT
+#include "print.h"
+
+/* NOTE: undocumented function which scratches files
+   We need to use this function because linking unistd.h
+   makes our program break at runtime.
+ */
+unsigned char __fastcall__ _sysremove(const char *name);
+
+void print_the_buffer() {
+       BYTE c;
+RETRY:
+       c = cbm_open((BYTE)4, (BYTE)4, (BYTE)0, NULL);
+       if (c != 0) {
+               c128_perror(c, "cbm_open(printer)");
+               if (retry_or_quit() == 'q')
+                       exit(1);
+
+               goto RETRY;
+       }
+       c = cbm_write((BYTE)4, print_buffer, strlen(print_buffer));
+       if (c != strlen(print_buffer)) {
+               c128_perror(c, "write(printer)");
+               if (retry_or_quit() == 'q')
+                       exit(1);
+               goto RETRY;
+       }
+       cbm_close((BYTE)4);
+       log_file(print_buffer);
+}
+
+void log_file(const char *s) {
+       /* A log-entry has usually 50 bytes, so we take 64 bytes.
+          Because files are wrapped (log.0, log.1, ...) every 100
+          lines, we don't need more than 100 * 64 bytes. */
+       char *buffer = malloc(sizeof(char) * 64 * 100);
+       char filename[8];
+       int read = 0;
+       unsigned int c;
+
+       if (buffer == NULL) {
+               cprintf("No memory available\n");
+               exit(1);
+       }
+
+       buffer[0] = '\0';
+       if (((++log_lines_written) % 100) == 0)
+               log_num++;
+       sprintf(filename, "log-%d", log_num);
+       /* Don't read log if there were no lines written before */
+       if (log_lines_written != 1) {
+               if ((c = cbm_open((BYTE)8, (BYTE)8, (BYTE)0, filename)) != 0) {
+                       c128_perror(c, "cbm_open(log)");
+                       exit(1);
+               }
+               read = cbm_read((BYTE)8, buffer, sizeof(char) * 64 * 100);
+               cbm_close((BYTE)8);
+               _sysremove(filename);
+       }
+       if ((c = cbm_open((BYTE)8, (BYTE)8, (BYTE)1, filename)) != 0) {
+               c128_perror(c, "cbm_open(log)");
+               exit(1);
+       }
+       if (read < 0) {
+               cprintf("Could not read existing logfile (read returned %d)\n", read);
+               exit(1);
+       }
+       strcpy(buffer+read, s);
+       c = cbm_write((BYTE)8, buffer, read+strlen(s));
+       if (c != (read+strlen(s))) {
+               cprintf("Could not save logfile (wrote %d bytes, wanted %d bytes), please make sure the floppy is not full!\n", c, (read+strlen(s)));
+               exit(1);
+       }
+       cbm_close((BYTE)8);
+       free(buffer);
+}