Release 0.2.3-r67

 * Set default --max_old_space_size to 16384
 * Allow to change --max_old_space_size also with option -M, which is shorter
 * Updated instructions on compiling k8, as gyp svn is offline now

Author: lh3

README.md

@@ -32,16 +32,15 @@ for a hash map without hitting the memory limit of V8.
 
 You need to first compile V8 and then compile and link K8. Here is the full procedure:
 
-	git clone https://github.com/v8/v8             # download V8
-	(cd v8; git checkout 3.16.4)                   # k8 only works with 3.16.x
-	(cd v8; make dependencies; make x64.release)   # compile V8
-	g++ -O2 -Wall -o k8 -Iv8/include k8.cc -lpthread -lz v8/out/*/libv8_{base,snapshot}.a
+	# download compilable V8 source code; K8 only works with v8-3.16
+	wget -O- https://github.com/attractivechaos/k8/releases/download/v0.2.1/v8-3.16.4.tar.bz2 | tar jxf -
+	# compile V8
+	cd v8-3.16.4 && make -j4 x64.release
+	# compile K8
+	g++ -O2 -Wall -o k8 -Iinclude ../k8.cc -lpthread -lz `find out -name "libv8_*.a"|grep -v nosnap`
 
-The two `libv8*.a` files should always be placed somewhere in `v8/out`, but
-maybe in a deeper directory, depending on the OS.
-
-Alternatively, you may download the compiled binaries for Mac and Linux from
-[SourceForge][11]. The source code is also included.
+Alternatively, you may download the precompiled binaries for Mac and Linux from
+the [release page][release].
 
 #### 4. An earlier version of K8 implemented a generic buffered stream. Why has it been removed?
 
@@ -191,3 +190,5 @@ when we want to stage a huge hash table in memory. `Map` has the following metho
 [8]: http://nodejs.org/api/stream.html
 [9]: http://www.commonjs.org/specs/
 [11]: https://sourceforge.net/projects/lh3/files/
+[gyp]: https://gyp.gsrc.io/
+[release]: https://github.com/attractivechaos/k8/releases

k8.cc

@@ -1,4 +1,4 @@
-#define K8_VERSION "0.2.2-r65" // known to work with V8-3.16.14
+#define K8_VERSION "0.2.3-r67" // known to work with V8-3.16.14
 
 #include <stdlib.h>
 #include <stdint.h>
@@ -596,9 +596,9 @@ JS_METHOD(k8_file_readline, args) // see iStream::readline(sep=line) for details
 	return ret >= 0? scope.Close(v8::Integer::New(dret)) : scope.Close(v8::Integer::New(ret));
 }
 
-/**********************
+/******************
  *** Set object ***
- **********************/
+ ******************/
 
 #include "khash.h"
 KHASH_MAP_INIT_STR(str, kh_cstr_t)
@@ -792,9 +792,19 @@ static v8::Persistent<v8::Context> CreateShellContext() // adapted from shell.cc
 int main(int argc, char* argv[])
 {
 	v8::V8::SetFlagsFromCommandLine(&argc, argv, true);
+
+	// set --max_old_space_size. We have to do it before CreateShellContext(), I guess.
+	int c;
+	char flag_buf[256], *size = 0;
+	while ((c = getopt(argc, argv, "ve:E:M:")) >= 0)
+		if (c == 'M') size = optarg;
+	strcat(strcpy(flag_buf, "--max_old_space_size="), size? size : "16384");
+	v8::V8::SetFlagsFromString(flag_buf, strlen(flag_buf));
+	opterr = optind = 1;
+
 	int ret = 0;
 	if (argc == 1) {
-		fprintf(stderr, "Usage: k8 [-v] [-e jsSrc] [-E jsSrc] <src.js> [arguments]\n");
+		fprintf(stderr, "Usage: k8 [-v] [-e jsSrc] [-E jsSrc] [-M maxRSS] <src.js> [arguments]\n");
 		return 1;
 	}
 	{
@@ -805,8 +815,7 @@ int main(int argc, char* argv[])
 			return 1;
 		}
 		context->Enter();
-		int i, c;
-		while ((c = getopt(argc, argv, "ve:E:")) >= 0) // parse k8 related command line options
+		while ((c = getopt(argc, argv, "ve:E:M:")) >= 0) // parse k8 related command line options
 			if (c == 'e' || c == 'E') {
 				if (!k8_execute(JS_STR(optarg), JS_STR("CLI"), (c == 'E'))) { // note the difference between 'e' and 'E'
 					ret = 1;
@@ -816,7 +825,7 @@ int main(int argc, char* argv[])
 		if (!ret && optind != argc) {
 			v8::HandleScope scope2;
 			v8::Local<v8::Array> args = v8::Array::New(argc - optind - 1);
-			for (i = optind + 1; i < argc; ++i)
+			for (int i = optind + 1; i < argc; ++i)
 				args->Set(v8::Integer::New(i - optind - 1), JS_STR(argv[i]));
 			context->Global()->Set(JS_STR("arguments"), args);
 			if (!k8_execute(k8_readfile(argv[optind]), JS_STR(argv[optind]), false)) ret = 1;