Commit d77a04d1 authored by Cunyin Chang's avatar Cunyin Chang Committed by Daniel Verkamp
Browse files

example: Replace the printf with fprintf to stderr. 



This patch will make sure the information will show up
on console immediately.

Change-Id: I0080866a40de35fb9deef840551ff212759b0191
Signed-off-by: default avatarCunyin Chang <cunyin.chang@intel.com>
parent de1b0065

examples/nvme/hotplug/hotplug.c

+19 −19
Original line number Diff line number Diff line
@@ -107,13 +107,13 @@ register_dev(struct spdk_nvme_ctrlr *ctrlr) 
	dev->ns = spdk_nvme_ctrlr_get_ns(ctrlr, 1);



	if (!dev->ns || !spdk_nvme_ns_is_active(dev->ns)) {

		printf("Controller %s: No active namespace; skipping\n", dev->name);

		fprintf(stderr, "Controller %s: No active namespace; skipping\n", dev->name);

		goto skip;

	}



	if (spdk_nvme_ns_get_size(dev->ns) < g_io_size_bytes ||

	    spdk_nvme_ns_get_sector_size(dev->ns) > g_io_size_bytes) {

		printf("Controller %s: Invalid "

		fprintf(stderr, "Controller %s: Invalid "

			"ns size %" PRIu64 " / block size %u for I/O size %u\n",

			dev->name,

			spdk_nvme_ns_get_size(dev->ns),
@@ -127,7 +127,7 @@ register_dev(struct spdk_nvme_ctrlr *ctrlr) 


	dev->qpair = spdk_nvme_ctrlr_alloc_io_qpair(ctrlr, 0);

	if (!dev->qpair) {

		printf("ERROR: spdk_nvme_ctrlr_alloc_io_qpair() failed\n");

		fprintf(stderr, "ERROR: spdk_nvme_ctrlr_alloc_io_qpair() failed\n");

		goto skip;

	}

	g_insert_times++;
@@ -141,7 +141,7 @@ skip: 
static void

unregister_dev(struct dev_ctx *dev)

{

	printf("unregister_dev: %s\n", dev->name);

	fprintf(stderr, "unregister_dev: %s\n", dev->name);



	spdk_nvme_ctrlr_free_io_qpair(dev->qpair);

	spdk_nvme_detach(dev->ctrlr);
@@ -251,21 +251,21 @@ print_stats(void) 
	struct dev_ctx *dev;



	TAILQ_FOREACH(dev, &g_devs, tailq) {

		printf("%-43.43s: %10" PRIu64 " I/Os completed (+%" PRIu64 ")\n",

		fprintf(stderr, "%-43.43s: %10" PRIu64 " I/Os completed (+%" PRIu64 ")\n",

			dev->name,

			dev->io_completed,

			dev->io_completed - dev->prev_io_completed);

		dev->prev_io_completed = dev->io_completed;

	}



	printf("\n");

	fprintf(stderr, "\n");

}



static bool

probe_cb(void *cb_ctx, const struct spdk_nvme_transport_id *trid,

	 struct spdk_nvme_ctrlr_opts *opts)

{

	printf("Attaching to %s\n", trid->traddr);

	fprintf(stderr, "Attaching to %s\n", trid->traddr);



	return true;

}
@@ -274,7 +274,7 @@ static void 
attach_cb(void *cb_ctx, const struct spdk_nvme_transport_id *trid,

	  struct spdk_nvme_ctrlr *ctrlr, const struct spdk_nvme_ctrlr_opts *opts)

{

	printf("Attached to %s\n", trid->traddr);

	fprintf(stderr, "Attached to %s\n", trid->traddr);



	register_dev(ctrlr);

}
@@ -293,7 +293,7 @@ remove_cb(void *cb_ctx, struct spdk_nvme_ctrlr *ctrlr) 
			 * is_removed is true and all outstanding I/O have been completed.

			 */

			dev->is_removed = true;

			printf("Controller removed: %s\n", dev->name);

			fprintf(stderr, "Controller removed: %s\n", dev->name);

			return;

		}

	}
@@ -419,7 +419,7 @@ parse_args(int argc, char **argv) 
static int

register_controllers(void)

{

	printf("Initializing NVMe Controllers\n");

	fprintf(stderr, "Initializing NVMe Controllers\n");



	if (spdk_nvme_probe(NULL, probe_cb, attach_cb, remove_cb) != 0) {

		fprintf(stderr, "spdk_nvme_probe() failed\n");
@@ -463,7 +463,7 @@ int main(int argc, char **argv) 
		return 1;

	}



	printf("Initialization complete. Starting I/O...\n");

	fprintf(stderr, "Initialization complete. Starting I/O...\n");

	io_loop();



	if ((g_expected_insert_times != -1 && g_insert_times != g_expected_insert_times) ||