Staging
v0.8.1
Revision ff58b9aaf8bf4ce7471a21baa502cb9ddaa9873a authored by Jeff King on 12 February 2008, 05:45:18 UTC, committed by Junio C Hamano on 13 February 2008, 21:54:58 UTC
It makes no sense to suggest "git reset HEAD" since we have
no HEAD commit. This actually used to work but regressed in
f26a0012.

wt_status_print_cached_header was updated to take the whole
wt_status struct rather than just the reference field.
Previously the various code paths were sometimes sending in
s->reference and sometimes sending in NULL, making the
decision on whether this was an initial commit before we
even got to this function. Now we must check the initial
flag here.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
1 parent 077b725
Raw File
alloc.c
/*
 * alloc.c  - specialized allocator for internal objects
 *
 * Copyright (C) 2006 Linus Torvalds
 *
 * The standard malloc/free wastes too much space for objects, partly because
 * it maintains all the allocation infrastructure (which isn't needed, since
 * we never free an object descriptor anyway), but even more because it ends
 * up with maximal alignment because it doesn't know what the object alignment
 * for the new allocation is.
 */
#include "cache.h"
#include "object.h"
#include "blob.h"
#include "tree.h"
#include "commit.h"
#include "tag.h"

#define BLOCKING 1024

#define DEFINE_ALLOCATOR(name, type)				\
static unsigned int name##_allocs;				\
void *alloc_##name##_node(void)					\
{								\
	static int nr;						\
	static type *block;					\
	void *ret;						\
								\
	if (!nr) {						\
		nr = BLOCKING;					\
		block = xmalloc(BLOCKING * sizeof(type));	\
	}							\
	nr--;							\
	name##_allocs++;					\
	ret = block++;						\
	memset(ret, 0, sizeof(type));				\
	return ret;						\
}

union any_object {
	struct object object;
	struct blob blob;
	struct tree tree;
	struct commit commit;
	struct tag tag;
};

DEFINE_ALLOCATOR(blob, struct blob)
DEFINE_ALLOCATOR(tree, struct tree)
DEFINE_ALLOCATOR(commit, struct commit)
DEFINE_ALLOCATOR(tag, struct tag)
DEFINE_ALLOCATOR(object, union any_object)

#ifdef NO_C99_FORMAT
#define SZ_FMT "%u"
#else
#define SZ_FMT "%zu"
#endif

static void report(const char* name, unsigned int count, size_t size)
{
    fprintf(stderr, "%10s: %8u (" SZ_FMT " kB)\n", name, count, size);
}

#undef SZ_FMT

#define REPORT(name)	\
    report(#name, name##_allocs, name##_allocs*sizeof(struct name) >> 10)

void alloc_report(void)
{
	REPORT(blob);
	REPORT(tree);
	REPORT(commit);
	REPORT(tag);
}
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