From 559e840b74dbbf39633aa68627937a5f7a6d4145 Mon Sep 17 00:00:00 2001 From: Junio C Hamano Date: Sun, 20 Jul 2008 16:13:05 -0700 Subject: Move read_in_full() and write_in_full() to wrapper.c A few compat/* layer functions call these functions, but we would really want to keep them thin, without depending too much on the libgit proper. Signed-off-by: Junio C Hamano --- wrapper.c | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) (limited to 'wrapper.c') diff --git a/wrapper.c b/wrapper.c index 4e04f7661b..93562f03ee 100644 --- a/wrapper.c +++ b/wrapper.c @@ -133,6 +133,44 @@ ssize_t xwrite(int fd, const void *buf, size_t len) } } +ssize_t read_in_full(int fd, void *buf, size_t count) +{ + char *p = buf; + ssize_t total = 0; + + while (count > 0) { + ssize_t loaded = xread(fd, p, count); + if (loaded <= 0) + return total ? total : loaded; + count -= loaded; + p += loaded; + total += loaded; + } + + return total; +} + +ssize_t write_in_full(int fd, const void *buf, size_t count) +{ + const char *p = buf; + ssize_t total = 0; + + while (count > 0) { + ssize_t written = xwrite(fd, p, count); + if (written < 0) + return -1; + if (!written) { + errno = ENOSPC; + return -1; + } + count -= written; + p += written; + total += written; + } + + return total; +} + int xdup(int fd) { int ret = dup(fd); -- cgit v1.3