Пример #1
0
/**
 *	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;
Пример #2
0
/**
 *	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;
}