Function init

libsigrok4DSL/input/in_vcd.c:324–396

}

static int init(struct sr_input *in, const char *filename)
{
	struct sr_channel *probe;
    uint16_t num_probes, i;
	char name[SR_MAX_PROBENAME_LEN + 1];
	char *param;
	struct context *ctx;

	(void)filename;

	if (!(ctx = malloc(sizeof(struct context)))) {
		sr_err("Input format context malloc failed.");
		return SR_ERR_MALLOC;
	}
    memset(ctx, 0, sizeof(struct context));

	num_probes = DEFAULT_NUM_PROBES;
	ctx->samplerate = 0;
	ctx->downsample = 1;
	ctx->skip = -1;

	if (in->param) {
		param = g_hash_table_lookup(in->param, "numprobes");
		if (param) {
			num_probes = strtoul(param, NULL, 10);
			if (num_probes < 1)
			{
				release_context(ctx);
				return SR_ERR;
			}
		}
		
		param = g_hash_table_lookup(in->param, "downsample");
		if (param) {
			ctx->downsample = strtoul(param, NULL, 10);
			if (ctx->downsample < 1)
			{
				ctx->downsample = 1;
			}
		}
		
		param = g_hash_table_lookup(in->param, "compress");
		if (param) {
			ctx->compress = strtoul(param, NULL, 10);
		}
		
		param = g_hash_table_lookup(in->param, "skip");
		if (param) {
			ctx->skip = strtoul(param, NULL, 10) / ctx->downsample;
		}
	}
	
	/* Maximum number of probes to parse from the VCD */
	ctx->maxprobes = num_probes;

	/* Create a virtual device. */
	in->sdi = sr_dev_inst_new(LOGIC, SR_ST_ACTIVE, NULL, NULL, NULL);
	in->internal = ctx;