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Add rcsid. Remove unused vars. Use err(3) and change exit(-1).

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This commit is contained in:
Philippe Charnier 1998-01-16 07:20:34 +00:00
parent aa05c002fa
commit 85dace5d59
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=32539
1 changed files with 20 additions and 29 deletions
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49
sys/i386/isa/sound/mmap_test.c
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@ -13,24 +13,31 @@
* (3.8-beta16 or later in FreeBSD and BSD/OS).
*/
#include <stdio.h>
#include <unistd.h>
#ifndef lint
static const char rcsid[] =
"$Id$";
#endif /* not lint */
#include <err.h>
#include <fcntl.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/mman.h>
#include <machine/soundcard.h>
#include <sys/time.h>
int
main()
{
int fd, sz, fsz, i, tmp, n, l, have_data=0, nfrag;
int fd, sz, fsz, tmp, nfrag;
int caps;
int sd, sl=0, sp;
unsigned char data[500000], *dp = data;
struct buffmem_desc imemd, omemd;
caddr_t buf;
struct timeval tim;
@ -44,10 +51,7 @@ main()
close(0);
if ((fd=open("/dev/dsp", O_RDWR, 0))==-1)
{
perror("/dev/dsp");
exit(-1);
}
err(1, "/dev/dsp");
/*
* Then setup sampling parameters. Just sampling rate in this case.
*/
@ -66,13 +70,12 @@ main()
printf("%d bytes read from file.\n", sl);
close(sd);
}
else perror("smpl");
else warn("smpl");
if (ioctl(fd, SNDCTL_DSP_GETCAPS, &caps)==-1)
{
perror("/dev/dsp");
fprintf(stderr, "Sorry but your sound driver is too old\n");
exit(-1);
warn("sorry but your sound driver is too old");
err(1, "/dev/dsp");
}
/*
@ -92,10 +95,7 @@ main()
*/
if (!(caps & DSP_CAP_TRIGGER) ||
!(caps & DSP_CAP_MMAP))
{
fprintf(stderr, "Sorry but your soundcard can't do this\n");
exit(-1);
}
errx(1, "sorry but your soundcard can't do this");
/*
* Select the fragment size. This is propably important only when
@ -111,10 +111,7 @@ main()
*/
if (ioctl(fd, SNDCTL_DSP_GETOSPACE, &info)==-1)
{
perror("GETOSPACE");
exit(-1);
}
err(1, "GETOSPACE");
sz = info.fragstotal * info.fragsize;
fsz = info.fragsize;
@ -143,10 +140,7 @@ main()
*/
if ((buf=mmap(NULL, sz, PROT_WRITE | PROT_READ, MAP_FILE|MAP_SHARED, fd, 0))==(caddr_t)-1)
{
perror("mmap (write)");
exit(-1);
}
err(1, "mmap (write)");
printf("mmap (out) returned %08x\n", buf);
op=buf;
@ -186,7 +180,7 @@ main()
while (1)
{
struct count_info count;
int p, l, extra;
int extra;
FD_ZERO(&writeset);
FD_SET(fd, &writeset);
@ -209,10 +203,7 @@ main()
*/
if (ioctl(fd, SNDCTL_DSP_GETOPTR, &count)==-1)
{
perror("GETOPTR");
exit(-1);
}
err(1, "GETOPTR");
if (count.ptr < 0 ) count.ptr = 0;
nfrag += count.blocks;