From: Jaroslav Kysela <perex@perex.cz>
Date: Thu, 11 Mar 1999 13:07:12 +0000 (+0000)
Subject: Timer changes..
X-Git-Tag: android-x86-9.0-r1~3538
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=e735bf70dd8cca2d4fd04a3071dd3a447f918a38;p=android-x86%2Fexternal-alsa-lib.git

Timer changes..
---

diff --git a/test/timer.c b/test/timer.c
index 384bce2c..08ba4c35 100644
--- a/test/timer.c
+++ b/test/timer.c
@@ -1,4 +1,5 @@
 #include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
 #include "../include/asoundlib.h"
 
@@ -18,15 +19,63 @@ void show_status(void *handle)
 	printf("  queue = %i\n", status.queue);
 }
 
-void main(void)
+void read_loop(void *handle, int master_ticks, int timeout)
 {
-	int err;
+	int err, max;
+	fd_set in;
+	struct timeval tv;
+	snd_timer_read_t tr;
+	
+	while (master_ticks-- > 0) {
+		FD_ZERO(&in);
+		max = snd_timer_file_descriptor(handle);
+		FD_SET(max, &in);
+		tv.tv_sec = timeout;
+		tv.tv_usec = 0;
+		if ((err = select(max + 1, &in, NULL, NULL, &tv)) < 0) {
+			fprintf(stderr, "select error %i (%s)\n", err, strerror(err));
+			exit(0);
+		}
+		if (err == 0) {
+			fprintf(stderr, "timer time out!!\n");
+			exit(0);
+		}
+		while (snd_timer_read(handle, &tr, sizeof(tr)) == sizeof(tr)) {
+			printf("TIMER: resolution = %lu, ticks = %lu\n",
+				tr.resolution, tr.ticks);
+		}
+	}
+}
+
+void main(int argc, char *argv[])
+{
+	int idx, err;
+	int timer = SND_TIMER_SYSTEM;
+	int slave = 0;
+	int slave_type = SND_TIMER_STYPE_SEQUENCER, slave_id = 0;
 	void *handle;
 	snd_timer_general_info_t ginfo;
 	snd_timer_select_t sel;
 	snd_timer_info_t info;
 	snd_timer_params_t params;
 
+	idx = 1;
+	while (idx < argc) {
+		if (!strncmp(argv[idx], "timer=", 6)) {
+			timer = atoi(argv[idx]+6);
+		} else if (!strcmp(argv[idx], "slave")) {
+			slave = 1;
+		} else if (!strncmp(argv[idx], "slave_type=", 11)) {
+			slave_type = atoi(argv[idx]+11);
+		} else if (!strncmp(argv[idx], "slave_id=", 9)) {
+			slave_id = atoi(argv[idx]+9);
+		}
+		idx++;
+	}
+	if (slave && slave_type == SND_TIMER_STYPE_NONE) {
+		fprintf(stderr, "sync_type is not set\n");
+		exit(0);
+	}
 	if ((err = snd_timer_open(&handle))<0) {
 		fprintf(stderr, "timer open %i (%s)\n", err, snd_strerror(err));
 		exit(0);
@@ -36,39 +85,47 @@ void main(void)
 		exit(0);
 	}
 	printf("Global timers = %i\n", ginfo.count);
+	printf("Using timer %i, slave %i, slave_type %i, slave_id %i\n", timer, slave, slave_type, slave_id);
 	bzero(&sel, sizeof(sel));
-	sel.number = SND_TIMER_SYSTEM;
-	sel.slave = 0;
+	sel.slave = slave;
+	if (!sel.slave) {
+		sel.data.number = timer;
+	} else {
+		sel.data.slave.type = slave_type;
+		sel.data.slave.id = slave_id;
+	}
 	if ((err = snd_timer_select(handle, &sel)) < 0) {
 		fprintf(stderr, "timer select %i (%s)\n", err, snd_strerror(err));
 		exit(0);
 	}
-	if ((err = snd_timer_info(handle, &info)) < 0) {
-		fprintf(stderr, "timer info %i (%s)\n", err, snd_strerror(err));
-		exit(0);
-	}
-	printf("Timer %i info:\n", sel.number);
-	printf("  flags = 0x%x\n", info.flags);
-	printf("  id = '%s'\n", info.id);
-	printf("  name = '%s'\n", info.name);
-	printf("  max ticks = %lu\n", info.ticks);
-	printf("  average resolution = %lu\n", info.resolution);
-	bzero(&params, sizeof(params));
-	params.flags = SND_TIMER_PSFLG_AUTO;
-	params.ticks = (1000000000 / info.resolution) / 50;	/* 50Hz */
-	if (params.ticks < 1)
-		params.ticks = 1;
-	printf("Using %lu tick(s)\n", params.ticks);
-	if ((err = snd_timer_params(handle, &params)) < 0) {
-		fprintf(stderr, "timer params %i (%s)\n", err, snd_strerror(err));
-		exit(0);
+	if (!sel.slave) {
+		if ((err = snd_timer_info(handle, &info)) < 0) {
+			fprintf(stderr, "timer info %i (%s)\n", err, snd_strerror(err));
+			exit(0);
+		}
+		printf("Timer %i info:\n", sel.data.number);
+		printf("  flags = 0x%x\n", info.flags);
+		printf("  id = '%s'\n", info.id);
+		printf("  name = '%s'\n", info.name);
+		printf("  max ticks = %lu\n", info.ticks);
+		printf("  average resolution = %lu\n", info.resolution);
+		bzero(&params, sizeof(params));
+		params.flags = SND_TIMER_PSFLG_AUTO;
+		params.ticks = (1000000000 / info.resolution) / 50;	/* 50Hz */
+		if (params.ticks < 1)
+			params.ticks = 1;
+		printf("Using %lu tick(s)\n", params.ticks);
+		if ((err = snd_timer_params(handle, &params)) < 0) {
+			fprintf(stderr, "timer params %i (%s)\n", err, snd_strerror(err));
+			exit(0);
+		}
 	}
 	show_status(handle);
 	if ((err = snd_timer_start(handle)) < 0) {
 		fprintf(stderr, "timer start %i (%s)\n", err, snd_strerror(err));
 		exit(0);
 	}
-	usleep(500000);
+	read_loop(handle, 25, sel.slave ? 10000 : 1);
 	show_status(handle);
 	snd_timer_close(handle);
 }