68 lines
1.7 KiB
C
68 lines
1.7 KiB
C
//
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// utils.h
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// Copyright 2020 Bruce Hill
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// Released under the MIT license with the Commons Clause
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//
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// This file contains some definitions of some utility macros.
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//
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#ifndef FILE_UTILS__H
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#define FILE_UTILS__H
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#include <err.h>
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#include <stdio.h>
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#include <string.h>
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#ifndef streq
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#define streq(a,b) (strcmp(a,b)==0)
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#endif
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#define new(t) memcheck(calloc(1, sizeof(t)))
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#define xcalloc(a,b) memcheck(calloc(a,b))
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#define xrealloc(a,b) memcheck(realloc(a,b))
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#define clean_err(...) do { cleanup(); err(1, __VA_ARGS__); } while (0)
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#define MAX(a,b) ((a) < (b) ? (b) : (a))
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#define MIN(a,b) ((a) > (b) ? (b) : (a))
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#define ONSCREEN (winsize.ws_row - 3)
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// Platform-dependent time strucutre accessors:
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#ifdef __APPLE__
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#define mtime(s) (s).st_mtimespec
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#define atime(s) (s).st_atimespec
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#define ctime(s) (s).st_ctimespec
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#else
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#define mtime(s) (s).st_mtim
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#define atime(s) (s).st_atim
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#define ctime(s) (s).st_ctim
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#endif
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// Entry macros
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#define IS_SELECTED(e) (((e)->selected.atme) != NULL)
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#define IS_VIEWED(e) ((e)->index >= 0)
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#define IS_LOADED(e) ((e)->hash.atme != NULL)
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#define E_ISDIR(e) (S_ISDIR(S_ISLNK((e)->info.st_mode) ? (e)->linkedmode : (e)->info.st_mode))
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// Linked list macros
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#define LL_PREPEND(head, node, name) do { \
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((node)->name).atme = &(head); \
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((node)->name).next = head; \
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if (head) ((head)->name).atme = &(((node)->name).next); \
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head = node; \
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} while (0)
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#define LL_REMOVE(node, name) do { \
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if (((node)->name).next) \
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((__typeof__(node))(node)->name.next)->name.atme = ((node)->name).atme; \
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if (((node)->name).atme) \
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*(((node)->name).atme) = ((node)->name).next; \
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((node)->name).atme = NULL; \
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((node)->name).next = NULL; \
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} while (0)
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#endif
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// vim: ts=4 sw=0 et cino=L2,l1,(0,W4,m1
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