/**
* process_subbufs - write ready subbufs to disk
*/
static int process_subbufs(struct _stp_buf_info *info,
struct switchfile_ctrl_block *scb)
{
unsigned subbufs_ready, start_subbuf, end_subbuf, subbuf_idx, i;
int len, cpu = info->cpu;
char *subbuf_ptr;
int subbufs_consumed = 0;
unsigned padding;
subbufs_ready = info->produced - info->consumed;
start_subbuf = info->consumed % n_subbufs;
end_subbuf = start_subbuf + subbufs_ready;
for (i = start_subbuf; i < end_subbuf; i++) {
subbuf_idx = i % n_subbufs;
subbuf_ptr = relay_buffer[cpu] + subbuf_idx * subbuf_size;
padding = *((unsigned *)subbuf_ptr);
subbuf_ptr += sizeof(padding);
len = (subbuf_size - sizeof(padding)) - padding;
scb->wsize += len;
if (fsize_max && scb->wsize > fsize_max) {
if (switch_oldoutfile(cpu, scb) < 0) {
perr("Couldn't open file for cpu %d, exiting.", cpu);
return -1;
}
scb->wsize = len;
}
if (len) {
#ifdef __ANDROID__
if (fwrite (subbuf_ptr, len, 1, percpu_tmpfile[cpu]) != 1) {
#else
if (fwrite_unlocked (subbuf_ptr, len, 1, percpu_tmpfile[cpu]) != 1) {
#endif
if (errno != EPIPE)
_perr("Couldn't write to output file for cpu %d, exiting:", cpu);
return -1;
}
}
subbufs_consumed++;
}
return subbufs_consumed;
}
/**
* reader_thread - per-cpu channel buffer reader
*/
static void *reader_thread(void *data)
{
int rc;
int cpu = (long)data;
struct pollfd pollfd;
struct _stp_consumed_info consumed_info;
unsigned subbufs_consumed;
cpu_set_t cpu_mask;
struct timespec tim = {.tv_sec=0, .tv_nsec=200000000}, *timeout = &tim;
/**
* process_subbufs - write ready subbufs to disk
*/
static int process_subbufs(struct _stp_buf_info *info,
struct switchfile_ctrl_block *scb)
{
unsigned subbufs_ready, start_subbuf, end_subbuf, subbuf_idx, i;
int len, cpu = info->cpu;
char *subbuf_ptr;
int subbufs_consumed = 0;
unsigned padding;
subbufs_ready = info->produced - info->consumed;
start_subbuf = info->consumed % n_subbufs;
end_subbuf = start_subbuf + subbufs_ready;
for (i = start_subbuf; i < end_subbuf; i++) {
subbuf_idx = i % n_subbufs;
subbuf_ptr = relay_buffer[cpu] + subbuf_idx * subbuf_size;
padding = *((unsigned *)subbuf_ptr);
subbuf_ptr += sizeof(padding);
len = (subbuf_size - sizeof(padding)) - padding;
scb->wsize += len;
if (fsize_max && scb->wsize > fsize_max) {
if (switch_oldoutfile(cpu, scb) < 0) {
perr("Couldn't open file for cpu %d, exiting.", cpu);
return -1;
}
scb->wsize = len;
}
if (len) {
if (fwrite_unlocked (subbuf_ptr, len, 1, percpu_tmpfile[cpu]) != 1) {
if (errno != EPIPE)
_perr("Couldn't write to output file for cpu %d, exiting:", cpu);
return -1;
}
}
subbufs_consumed++;
}
return subbufs_consumed;
}