1 files changed, 75 insertions, 0 deletions
diff --git a/utils.h b/utils.h
new file mode 100644
index 0000000..82018b3
--- /dev/null
+++ b/utils.h
@@ -0,0 +1,75 @@
+/*
+ * utils.h
+ * Copyright 2020 Bruce Hill
+ * Released under the MIT license
+ *
+ * This file contains some definitions of some utility macros.
+ */
+
+#ifndef FILE_UTILS__H
+#define FILE_UTILS__H
+
+#include <stdio.h>
+
+#define MAX(a,b) ((a) < (b) ? (b) : (a))
+#define MIN(a,b) ((a) > (b) ? (b) : (a))
+
+#define ONSCREEN (winsize.ws_row - 3)
+
+// Platform-dependent time strucutre accessors:
+#ifdef __APPLE__
+#define mtime(s) (s).st_mtimespec
+#define atime(s) (s).st_atimespec
+#define ctime(s) (s).st_ctimespec
+#else
+#define mtime(s) (s).st_mtim
+#define atime(s) (s).st_atim
+#define ctime(s) (s).st_ctim
+#endif
+
+// Error reporting macros:
+#define err(...) do { \
+    cleanup(); \
+    fprintf(stderr, __VA_ARGS__); \
+    if (errno) fprintf(stderr, "\n%s", strerror(errno)); \
+    fprintf(stderr, "\n"); \
+    exit(EXIT_FAILURE); \
+} while (0)
+
+#define warn(...) do { \
+    move_cursor(tty_out, 0, winsize.ws_row-1); \
+    fputs("\033[41;33;1m", tty_out); \
+    fprintf(tty_out, __VA_ARGS__); \
+    fputs(" Press any key to continue...\033[0m  ", tty_out); \
+    fflush(tty_out); \
+    while (bgetkey(tty_in, NULL, NULL) == -1) usleep(100); \
+    bb->dirty = 1; \
+} while (0)
+
+// Entry macros
+#define IS_SELECTED(e) (((e)->selected.atme) != NULL)
+#define IS_VIEWED(e) ((e)->index >= 0)
+#define IS_LOADED(e) ((e)->hash.atme != NULL)
+
+#define E_ISDIR(e) (S_ISDIR(S_ISLNK((e)->info.st_mode) ? (e)->linkedmode : (e)->info.st_mode))
+
+// Linked list macros
+#define LL_PREPEND(head, node, name) do { \
+    ((node)->name).atme = &(head); \
+    ((node)->name).next = head; \
+    if (head) ((head)->name).atme = &(((node)->name).next); \
+    head = node; \
+} while (0)
+
+#define LL_REMOVE(node, name) do { \
+    if (((node)->name).next) \
+        ((__typeof__(node))(node)->name.next)->name.atme = ((node)->name).atme; \
+    if (((node)->name).atme) \
+        *(((node)->name).atme) = ((node)->name).next; \
+    ((node)->name).atme = NULL; \
+    ((node)->name).next = NULL; \
+} while (0)
+
+
+#endif
+// vim: ts=4 sw=0 et cino=L2,l1,(0,W4,m1