Allow users to replace allocator and handle OOM everywhere. (#800)

* Adds an indirection to every allocation/deallocation to allow users to 
  plug in ones of their choosing (use custom functions, jemalloc, etc).

* Gracefully handle OOM everywhere in hiredis.  This should make it possible
  for users of the library to have more flexibility in how they handle such situations.

* Changes `redisReaderTask->elements` from an `int` to a `long long` to prevent
  a possible overflow when transferring the task elements into a `redisReply`.

* Adds a configurable `max elements` member to `redisReader` that defaults to
  2^32 - 1.  This can be set to "unlimited" by setting the value to zero.

1 files changed, 6 insertions, 6 deletions

diff --git a/Makefile b/Makefile
index 438ab8f..f19e760 100644
--- a/Makefile
+++ b/Makefile
@@ -3,7 +3,7 @@
 # Copyright (C) 2010-2011 Pieter Noordhuis <pcnoordhuis at gmail dot com>
 # This file is released under the BSD license, see the COPYING file
 
-OBJ=net.o hiredis.o sds.o async.o read.o sockcompat.o alloc.o
+OBJ=alloc.o net.o hiredis.o sds.o async.o read.o sockcompat.o
 SSL_OBJ=ssl.o
 EXAMPLES=hiredis-example hiredis-example-libevent hiredis-example-libev hiredis-example-glib
 ifeq ($(USE_SSL),1)
@@ -109,16 +109,16 @@ all: $(SSL_DYLIBNAME) $(SSL_STLIBNAME) $(SSL_PKGCONFNAME)
 endif
 
 # Deps (use make dep to generate this)
+alloc.o: alloc.c fmacros.h alloc.h
 async.o: async.c fmacros.h alloc.h async.h hiredis.h read.h sds.h net.h dict.c dict.h win32.h async_private.h
 dict.o: dict.c fmacros.h alloc.h dict.h
 hiredis.o: hiredis.c fmacros.h hiredis.h read.h sds.h alloc.h net.h async.h win32.h
-alloc.o: alloc.c alloc.h
 net.o: net.c fmacros.h net.h hiredis.h read.h sds.h alloc.h sockcompat.h win32.h
-read.o: read.c fmacros.h read.h sds.h win32.h
-sds.o: sds.c sds.h sdsalloc.h
+read.o: read.c fmacros.h alloc.h read.h sds.h win32.h
+sds.o: sds.c sds.h sdsalloc.h alloc.h
 sockcompat.o: sockcompat.c sockcompat.h
-ssl.o: ssl.c hiredis.h read.h sds.h alloc.h async.h async_private.h
-test.o: test.c fmacros.h hiredis.h read.h sds.h alloc.h net.h
+ssl.o: ssl.c hiredis.h read.h sds.h alloc.h async.h win32.h async_private.h
+test.o: test.c fmacros.h hiredis.h read.h sds.h alloc.h net.h sockcompat.h win32.h
 
 $(DYLIBNAME): $(OBJ)
 	$(DYLIB_MAKE_CMD) -o $(DYLIBNAME) $(OBJ) $(REAL_LDFLAGS)