From a91d49cd369ac5fc8e1a17357a975d09cf6c8cb3 Mon Sep 17 00:00:00 2001 From: "Shawn O. Pearce" Date: Tue, 27 Feb 2007 23:47:19 -0500 Subject: [PATCH] index-pack: Loop over pread until data loading is complete. A filesystem might not be able to completely supply our pread request in one system call, such as if we are reading data from a network file system and the requested length is just simply huge. Signed-off-by: Shawn O. Pearce Signed-off-by: Junio C Hamano --- index-pack.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/index-pack.c b/index-pack.c index 72e096241..f9177442a 100644 --- a/index-pack.c +++ b/index-pack.c @@ -277,13 +277,19 @@ static void *get_data_from_pack(struct object_entry *obj) { unsigned long from = obj[0].offset + obj[0].hdr_size; unsigned long len = obj[1].offset - from; + unsigned long rdy = 0; unsigned char *src, *data; z_stream stream; int st; src = xmalloc(len); - if (pread(pack_fd, src, len, from) != len) - die("cannot pread pack file: %s", strerror(errno)); + data = src; + do { + ssize_t n = pread(pack_fd, data + rdy, len - rdy, from + rdy); + if (n <= 0) + die("cannot pread pack file: %s", strerror(errno)); + rdy += n; + } while (rdy < len); data = xmalloc(obj->size); memset(&stream, 0, sizeof(stream)); stream.next_out = data; -- 2.30.2