void writer(struct libvchan *ctrl)
{
int size;
unsigned long long write_size = 0;
struct timeval tv1, tv2;
long t = 0, t1, t2;
//int f = open("a", O_RDONLY);
while (write_size < total_size) {
size = write_size + blocksize > total_size ? total_size - write_size : blocksize;
//read(f, buf, size);
gettimeofday(&tv1, NULL);
size = libvchan_write(ctrl, buf, size);
gettimeofday(&tv2, NULL);
t1 = tv1.tv_sec*1000000 + tv1.tv_usec;
t2 = tv2.tv_sec*1000000 + tv2.tv_usec;
t += (t2 - t1);
if (size < 0) {
perror("vchan write");
exit(1);
}
write_size += size;
}
//close(f);
printf("BW: %.3f MB/s (%llu bytes in %ld usec), Size: %.2fMB, time: %.3fsec\n", BW(write_size,t), write_size, t, ((double)write_size/(1024*1024)), ((double)t/1000000));
}
static void puffout_strings(libvchan_t * con) {
size_t sz, len;
vchan_header_t head;
DPRINTF(DBG_SERVER,"hello: waiting for hello message\n");
/* Wait for hello */
libvchan_wait(con);
sz = libvchan_read(con, &head, sizeof(head));
assert(sz == sizeof(head));
assert(head.msg_type == MSG_HELLO);
head.msg_type = MSG_ACK;
len = head.len;
DPRINTF(DBG_SERVER,"hello: sending hello msg ack\n");
/* Send off ack */
sz = libvchan_write(con, &head, sizeof(head));
assert(sz == sizeof(head));
DPRINTF(DBG_SERVER,"hello: waiting for string\n");
/* Read data */
libvchan_wait(con);
sz = libvchan_read(con, &char_buf, len);
assert(sz == len);
DPRINTF(DBG_SERVER,"hello: got string: %s\n", char_buf);
// head.msg_type = MSG_CONC;
// sz = libvchan_write(con, &head, sizeof(head));
// assert(sz == sizeof(head));
}
int write_data_exact(libvchan_t *vchan, char *buf, int size)
{
int written = 0;
int ret;
while (written < size) {
ret = libvchan_write(vchan, buf + written, size - written);
if (ret <= 0)
handle_vchan_error(vchan, "write data");
written += ret;
}
// fprintf(stderr, "sent %d bytes\n", size);
return size;
}
static int write_to_vchan(libvchan_t *ctrl, char *buf, int size)
{
static int all = 0, waited = 0, nonwaited = 0, full = 0;
ssize_t l;
fd_set rfds;
struct timeval tv = { 0, 0 };
int ret, fd = libvchan_fd_for_select(ctrl);
FD_ZERO(&rfds);
FD_SET(fd, &rfds);
all++;
ret = select(fd + 1, &rfds, NULL, NULL, &tv);
if (ret == -1) {
pa_log("Failed to select() in vchan: %s",
pa_cstrerror(errno));
return -1;
}
if (ret) {
if (libvchan_wait(ctrl) < 0) {
pa_log("Failed libvchan_wait");
return -1;
}
waited++;
} else
nonwaited++;
if (libvchan_buffer_space(ctrl)) {
l = libvchan_write(ctrl, buf, size);
} else {
l = -1;
errno = EAGAIN;
full++;
}
if ((all % 8000) == 0) {
pa_log
("write_to_vchan: all=%d waited=%d nonwaited=%d full=%d\n",
all, waited, nonwaited, full);
}
return l;
}
