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Added O_REOPEN, better error handling.

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This commit is contained in:
Philip Homburg 2008-02-25 12:13:30 +00:00
parent 41efa40ad2
commit 822fcd368d
1 changed files with 17 additions and 4 deletions
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21
commands/ibm/playwave.c
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@ -69,7 +69,7 @@ void usage()
void main ( int argc, char *argv[] ) void main ( int argc, char *argv[] )
{ {
int i, audio, file; int i, r, audio, file;
char *buffer, *file_name; char *buffer, *file_name;
unsigned int sign; unsigned int sign;
unsigned int fragment_size; unsigned int fragment_size;
@ -92,9 +92,9 @@ void main ( int argc, char *argv[] )
else file_name = argv[1]; else file_name = argv[1];
/* Open DSP */ /* Open DSP */
if ((audio = open("/dev/audio", O_RDWR)) < 0) if ((audio = open("/dev/audio", O_RDWR | O_REOPEN)) < 0)
{ {
printf("Cannot open /dev/audio\n"); printf("Cannot open /dev/audio: %s\n", strerror(errno));
exit(-1); exit(-1);
} }
@ -196,6 +196,19 @@ void main ( int argc, char *argv[] )
} }
/* Copy data to DSP */ /* Copy data to DSP */
write(audio, buffer, fragment_size); r= write(audio, buffer, fragment_size);
if (r != fragment_size)
{
if (r < 0)
{
fprintf(stderr, "playwave: write to audio device failed: %s\n",
strerror(errno));
}
else
{
fprintf(stderr, "playwave: partial write %d instead of %d\n",
r, fragment_size);
}
}
} }
} }