Module Name: src
Committed By: sjg
Date: Tue Apr 24 20:26:58 UTC 2012
Modified Files:
src/usr.bin/make: buf.c buf.h var.c
Log Message:
Var* are generally very liberal with memory, with the expectation
that none of it persists for long.
This isn't always true - for example a long running .for loop.
Buf_DestroyCompact() is used by Var_Subst(), rather than Buf_Destroy().
If it looks like we can save BUF_COMPACT_LIMIT (128) or more bytes,
call realloc. This can reduce memory consumption by about 20%
Setting BUF_COMPACT_LIMIT to 0 dissables this.
To generate a diff of this commit:
cvs rdiff -u -r1.24 -r1.25 src/usr.bin/make/buf.c
cvs rdiff -u -r1.16 -r1.17 src/usr.bin/make/buf.h
cvs rdiff -u -r1.167 -r1.168 src/usr.bin/make/var.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
