summaryrefslogtreecommitdiff
path: root/wrapper.c
diff options
context:
space:
mode:
authorJunio C Hamano <gitster@pobox.com>2008-07-20 23:13:05 (GMT)
committerJunio C Hamano <gitster@pobox.com>2008-07-21 00:17:09 (GMT)
commit559e840b74dbbf39633aa68627937a5f7a6d4145 (patch)
tree5d7104780be71a36cbccccd4de20c9363ee97a92 /wrapper.c
parent7df1709c36ff93f56636ab11db612dedb0d2bed0 (diff)
downloadgit-559e840b74dbbf39633aa68627937a5f7a6d4145.zip
git-559e840b74dbbf39633aa68627937a5f7a6d4145.tar.gz
git-559e840b74dbbf39633aa68627937a5f7a6d4145.tar.bz2
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 <gitster@pobox.com>
Diffstat (limited to 'wrapper.c')
-rw-r--r--wrapper.c38
1 files changed, 38 insertions, 0 deletions
diff --git a/wrapper.c b/wrapper.c
index 4e04f76..93562f0 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);