ssize_t mc_get(DAL_Context* ctx, char* buf, size_t size) {
ENTRY();
ssize_t size_read;
ObjectStream* os = MC_OS(ctx);
if(! (os->flags & OSF_OPEN)) {
errno = EBADF;
LOG(LOG_ERR, "Attempted get on OS that is not open.\n");
}
ne_handle handle = MC_HANDLE(ctx);
// context->chunk_offset tracks the offset we are reading at within
// the object.
size_read = ne_read(handle, buf, size, MC_CONTEXT(ctx)->chunk_offset);
if(size_read < 0) {
LOG(LOG_ERR, "ne_read() failed.\n");
return -1;
}
else if(size_read == 0) { // EOF
os->flags |= OSF_EOF;
}
// update the offset for the next call to read.
MC_CONTEXT(ctx)->chunk_offset += size_read;
os->written += size_read;
EXIT();
return size_read;
}
static ssize_t read_raw(ne_socket *sock, char *buffer, size_t len)
{
ssize_t ret;
ret = readable_raw(sock, sock->rdtimeout);
if (ret) return ret;
do {
ret = ne_read(sock->fd, buffer, len);
} while (ret == -1 && NE_ISINTR(ne_errno));
if (ret == 0) {
set_error(sock, _("Connection closed"));
ret = NE_SOCK_CLOSED;
} else if (ret < 0) {
int errnum = ne_errno;
ret = NE_ISRESET(errnum) ? NE_SOCK_RESET : NE_SOCK_ERROR;
set_strerror(sock, errnum);
}
return ret;
}
