git/copy.c
Junio C Hamano 1c15afb934 xread/xwrite: do not worry about EINTR at calling sites.
We had errno==EINTR check after read(2)/write(2) sprinkled all
over the places, always doing continue.  Consolidate them into
xread()/xwrite() wrapper routines.

Credits for suggestion goes to HPA -- bugs are mine.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-12-19 18:28:16 -08:00

36 lines
649 B
C

#include "cache.h"
int copy_fd(int ifd, int ofd)
{
while (1) {
int len;
char buffer[8192];
char *buf = buffer;
len = xread(ifd, buffer, sizeof(buffer));
if (!len)
break;
if (len < 0) {
int read_error;
read_error = errno;
close(ifd);
return error("copy-fd: read returned %s",
strerror(read_error));
}
while (len) {
int written = xwrite(ofd, buf, len);
if (written > 0) {
buf += written;
len -= written;
}
else if (!written)
return error("copy-fd: write returned 0");
else
return error("copy-fd: write returned %s",
strerror(errno));
}
}
close(ifd);
return 0;
}