memory/mozjemalloc/linkedlist.h
author Gregory Szorc <gps@mozilla.com>
Tue, 24 May 2016 08:47:24 -0700
changeset 298856 408319d87eacb28848efeab0346eb815440adade
parent 96044 87bd340fac6aa9f70c42bb4a8fbe0b7325277b0d
child 378814 9638b85c359051c792baab365d4a3b1ad30359a4
permissions -rw-r--r--
Bug 1275297 - Create Visual Studio project files by default on Windows; r=glandium Now that the VisualStudio backend will no-op if nothing has changed, it should be safe to always run this backend. On first run, backend generation takes ~3.5s on my machine. On subsequent run, it takes ~1.5s. Wall time for a no-op config.status is now ~15.7s. We could like make the Visual Studio backend faster by not writing so many project files. But this would require consolidating libraries in moz.build files. And that's out of scope for this change. MozReview-Commit-ID: 5W38HMGmcuV

/* -*- Mode: C; tab-width: 8; c-basic-offset: 8; indent-tabs-mode: t -*- */
/* vim:set softtabstop=8 shiftwidth=8 noet: */
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#ifndef linkedlist_h__
#define linkedlist_h__

#include <stddef.h>

typedef struct LinkedList_s LinkedList;

struct LinkedList_s {
	LinkedList *next;
	LinkedList *prev;
};

/* Convert from LinkedList* to foo*. */
#define LinkedList_Get(e, type, prop) \
  (type*)((char*)(e) - offsetof(type, prop))

/* Insert |e| at the beginning of |l|.  */
void LinkedList_InsertHead(LinkedList *l, LinkedList *e)
{
	e->next = l;
	e->prev = l->prev;
	e->next->prev = e;
	e->prev->next = e;
}

void LinkedList_Remove(LinkedList *e)
{
	e->prev->next = e->next;
	e->next->prev = e->prev;
	e->next = e;
	e->prev = e;
}

bool LinkedList_IsEmpty(LinkedList *e)
{
	return e->next == e;
}

void LinkedList_Init(LinkedList *e)
{
	e->next = e;
	e->prev = e;
}

#endif