// http://linux.die.net/man/2/sendfile
// sendfile - transfer data between file descriptors
// TODO offset?
ssize_t my_sendfile(int out_fd, int in_fd, off_t *offset, size_t count) {
char buf[SENDFILE_BUF_SIZE];
ssize_t read_size;
ssize_t write_size;
ssize_t sum = 0;
DEBUG_IFM("my_sendfile(), size=%d ############################\n", count);
do {
/* set read size */
if ((count - sum) > SENDFILE_BUF_SIZE) {
read_size = SENDFILE_BUF_SIZE;
} else {
read_size = count - sum;
}
/* read */
read_size = wrapRead(in_fd, buf, read_size);
if (read_size < 0) {
// sum = -1;
break;
}
/* write */
write_size = wrapWrite(out_fd, buf, read_size);
if (write_size < 0) {
LOG(LOG_ERR, "\n");
sum = -1;
break;
}
if (write_size != read_size) {
LOG(LOG_ERR, "\n");
sum = -1;
break;
}
sum += write_size;
} while (sum < (ssize_t) count);
return sum;
}
/**
* write IF-M PTS message ()
*
* we are using sendfile() here and send the data steb by step.
* but IF-M of IMC/IMV version need to create whole blob to send.
*
* v0.2.4 - sendfile() not work with ptsc. use my_sendfile()
*
* Retrun
* length of write data
* -1 ERROR
*/
int writePtsTlv(OPENPTS_CONTEXT *ctx, int fdout, int type) {
int rc = -1;
BYTE *message;
int length = 0;
int len;
DEBUG_CAL("writePtsTlvToSock - start\n");
/* check */
if (ctx == NULL) {
LOG(LOG_ERR, "null input");
return -1;
}
message = getPtsTlvMessage(ctx, type, &length);
if (message != NULL) {
rc = wrapWrite(fdout, message, length);
DEBUG_IFM("writePtsTlv - type=%d, length = %d", type, length);
} else {
DEBUG_IFM("getPtsTlvMessage() is null");
goto error;
}
DEBUG_CAL("writePtsTlvToSock - done\n");
/* done */
rc = length;
return rc;
error:
DEBUG_IFM("writePtsTlvToSock() fail, send error mgs\n");
/* send ERROR */
len = writePtsTlv(ctx, fdout, OPENPTS_ERROR);
if (len < 0) {
LOG(LOG_ERR, "send OPENPTS_ERROR was faild");
}
return -1;
}
void init(int *p, int size, int hotCache)
{
WRAPTOKEN w = wrapOpen();
int i;
for (i=0; i < size; i++)
wrapWrite((p + i), &i, sizeof(int), w);
wrapClose(w);
// TODO for hot cache will need to have started stats before here!
int *f = p;
if (!hotCache)
{
printf("Flusing cache.\n");
for (i = 0; i < size; i+=IntsPerLine)
{
f = p + i;
//printf("clfush(%p)\n", f);
clflush(f);
}
}
p_msync();
}
