From 58ecbd5edeb2357c313db75bc49d45981a2061b7 Mon Sep 17 00:00:00 2001 From: Jonathan Nieder Date: Sat, 6 Nov 2010 06:44:11 -0500 Subject: wrapper: move xmmap() to sha1_file.c wrapper.o depends on sha1_file.o for a number of reasons. One is release_pack_memory(). xmmap function calls mmap, discarding unused pack windows when necessary to relieve memory pressure. Simple git programs using wrapper.o as a friendly libc do not need this functionality. So move xmmap to sha1_file.o, where release_pack_memory() is. Signed-off-by: Jonathan Nieder Signed-off-by: Junio C Hamano --- sha1_file.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'sha1_file.c') diff --git a/sha1_file.c b/sha1_file.c index 0cd943561..8e299ae85 100644 --- a/sha1_file.c +++ b/sha1_file.c @@ -576,6 +576,21 @@ void release_pack_memory(size_t need, int fd) ; /* nothing */ } +void *xmmap(void *start, size_t length, + int prot, int flags, int fd, off_t offset) +{ + void *ret = mmap(start, length, prot, flags, fd, offset); + if (ret == MAP_FAILED) { + if (!length) + return NULL; + release_pack_memory(length, fd); + ret = mmap(start, length, prot, flags, fd, offset); + if (ret == MAP_FAILED) + die_errno("Out of memory? mmap failed"); + } + return ret; +} + void close_pack_windows(struct packed_git *p) { while (p->windows) { -- cgit v1.2.1