--- a/th_ioctx.c	Sat Feb 17 23:35:20 2018 +0200
+++ b/th_ioctx.c	Sat Feb 17 23:41:11 2018 +0200
@@ -11,6 +11,9 @@
 #include <stdio.h>
 
 
+#define TH_UPDATE_ATIME do { ctx->atime = time(NULL); } while (0)
+
+
 th_ioctx *th_io_new(const th_ioctx_ops *fops, const char *filename)
 {
     th_ioctx *ctx = th_malloc0(sizeof(th_ioctx));
@@ -150,63 +153,63 @@
 
 int thferror(th_ioctx *ctx)
 {
-    ctx->atime = time(NULL);
+    TH_UPDATE_ATIME;
     return ctx->fops->ferror(ctx);
 }
 
 
 int thfseek(th_ioctx *ctx, const off_t offset, int whence)
 {
-    ctx->atime = time(NULL);
+    TH_UPDATE_ATIME;
     return ctx->fops->fseek(ctx, offset, whence);
 }
 
 
 off_t thfsize(th_ioctx *ctx)
 {
-    ctx->atime = time(NULL);
+    TH_UPDATE_ATIME;
     return ctx->fops->fsize(ctx);
 }
 
 
 off_t thftell(th_ioctx *ctx)
 {
-    ctx->atime = time(NULL);
+    TH_UPDATE_ATIME;
     return ctx->fops->ftell(ctx);
 }
 
 
 BOOL thfeof(th_ioctx *ctx)
 {
-    ctx->atime = time(NULL);
+    TH_UPDATE_ATIME;
     return ctx->fops->feof(ctx);
 }
 
 
 int thfgetc(th_ioctx *ctx)
 {
-    ctx->atime = time(NULL);
+    TH_UPDATE_ATIME;
     return ctx->fops->fgetc(ctx);
 }
 
 
 int thfputc(int v, th_ioctx *ctx)
 {
-    ctx->atime = time(NULL);
+    TH_UPDATE_ATIME;
     return ctx->fops->fputc(v, ctx);
 }
 
 
 size_t thfread(void *ptr, size_t size, size_t nmemb, th_ioctx *ctx)
 {
-    ctx->atime = time(NULL);
+    TH_UPDATE_ATIME;
     return ctx->fops->fread(ptr, size, nmemb, ctx);
 }
 
 
 size_t thfwrite(const void *ptr, size_t size, size_t nmemb, th_ioctx *ctx)
 {
-    ctx->atime = time(NULL);
+    TH_UPDATE_ATIME;
     return ctx->fops->fwrite(ptr, size, nmemb, ctx);
 }