From c007ce824d9a4fccb148f9204e04c23ed2984b71 Mon Sep 17 00:00:00 2001
From: Russ Cox <rsc@golang.org>
Date: Mon, 8 Sep 2014 00:08:51 -0400
Subject: build: move package sources from src/pkg to src

Preparation was in CL 134570043.
This CL contains only the effect of 'hg mv src/pkg/* src'.
For more about the move, see golang.org/s/go14nopkg.
---
 src/runtime/mfixalloc.c | 64 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 64 insertions(+)
 create mode 100644 src/runtime/mfixalloc.c

(limited to 'src/runtime/mfixalloc.c')

diff --git a/src/runtime/mfixalloc.c b/src/runtime/mfixalloc.c
new file mode 100644
index 0000000000..d670629dae
--- /dev/null
+++ b/src/runtime/mfixalloc.c
@@ -0,0 +1,64 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Fixed-size object allocator.  Returned memory is not zeroed.
+//
+// See malloc.h for overview.
+
+#include "runtime.h"
+#include "arch_GOARCH.h"
+#include "malloc.h"
+
+// Initialize f to allocate objects of the given size,
+// using the allocator to obtain chunks of memory.
+void
+runtime·FixAlloc_Init(FixAlloc *f, uintptr size, void (*first)(void*, byte*), void *arg, uint64 *stat)
+{
+	f->size = size;
+	f->first = first;
+	f->arg = arg;
+	f->list = nil;
+	f->chunk = nil;
+	f->nchunk = 0;
+	f->inuse = 0;
+	f->stat = stat;
+}
+
+void*
+runtime·FixAlloc_Alloc(FixAlloc *f)
+{
+	void *v;
+	
+	if(f->size == 0) {
+		runtime·printf("runtime: use of FixAlloc_Alloc before FixAlloc_Init\n");
+		runtime·throw("runtime: internal error");
+	}
+
+	if(f->list) {
+		v = f->list;
+		f->list = *(void**)f->list;
+		f->inuse += f->size;
+		return v;
+	}
+	if(f->nchunk < f->size) {
+		f->chunk = runtime·persistentalloc(FixAllocChunk, 0, f->stat);
+		f->nchunk = FixAllocChunk;
+	}
+	v = f->chunk;
+	if(f->first)
+		f->first(f->arg, v);
+	f->chunk += f->size;
+	f->nchunk -= f->size;
+	f->inuse += f->size;
+	return v;
+}
+
+void
+runtime·FixAlloc_Free(FixAlloc *f, void *p)
+{
+	f->inuse -= f->size;
+	*(void**)p = f->list;
+	f->list = p;
+}
+
-- 
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