Use static list of descriptors to reduce mallocs.

[coloredstderr/coloredstderr.git] / src / constants.h

diff --git a/src/constants.h b/src/constants.h
index f7c9b77b1cde6b3cf18a55486f2d0d51bf53db06..66fe03feecc909f00c3baf5198ea10fad0f1b4c5 100644 (file)
--- a/src/constants.h
+++ b/src/constants.h
@@ -30,6 +30,10 @@
 #define DEFAULT_PRE_STRING "\e[91m"
 #define DEFAULT_POST_STRING "\e[0m"
 
+/* Number of elements to allocate statically. Highest descriptor observed in
+ * normal use was 255 (by bash), which yielded this limit to prevent
+ * unnecessary calls to malloc() whenever possible. */
+#define TRACKFDS_STATIC_COUNT 256
 /* Number of new elements to allocate per realloc(). */
 #define TRACKFDS_REALLOC_STEP 10