aplay - add option --process-id-file

Write the process ID to a file so other programs can
signal aplay.  When aplay exits, delete the file.

Signed-off-by: John Sauter <John_Sauter@systemeyescomputerstore.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
John Sauter 2010-01-08 16:21:07 -05:00 committed by Jaroslav Kysela
parent 400e6f440e
commit 0895fcdce2

View file

@ -116,6 +116,10 @@ static int fd = -1;
static off64_t pbrec_count = LLONG_MAX, fdcount;
static int vocmajor, vocminor;
static char *pidfile_name = NULL;
FILE *pidf = NULL;
static int pidfile_written = 0;
/* needed prototypes */
static void playback(char *filename);
@ -194,7 +198,8 @@ _("Usage: %s [OPTION]... [FILE]...\n"
" --test-position test ring buffer position\n"
" --test-coef=# test coeficient for ring buffer position (default 8)\n"
" expression for validation is: coef * (buffer_size / 2)\n"
" --test-nowait do not wait for ring buffer - eats whole CPU\n")
" --test-nowait do not wait for ring buffer - eats whole CPU\n"
" --process-id-file write the process ID here\n")
, command);
printf(_("Recognized sample formats are:"));
for (k = 0; k < SND_PCM_FORMAT_LAST; ++k) {
@ -324,6 +329,18 @@ static void version(void)
printf("%s: version " SND_UTIL_VERSION_STR " by Jaroslav Kysela <perex@perex.cz>\n", command);
}
/*
* Subroutine to clean up before exit.
*/
static void prg_exit(int code)
{
if (handle)
snd_pcm_close(handle);
if (pidfile_written)
remove (pidfile_name);
exit(code);
}
static void signal_handler(int sig)
{
if (verbose==2)
@ -345,7 +362,7 @@ static void signal_handler(int sig)
snd_pcm_close(handle);
handle = NULL;
}
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
enum {
@ -358,7 +375,8 @@ enum {
OPT_DISABLE_SOFTVOL,
OPT_TEST_POSITION,
OPT_TEST_COEF,
OPT_TEST_NOWAIT
OPT_TEST_NOWAIT,
OPT_PROCESS_ID_FILE
};
int main(int argc, char *argv[])
@ -399,6 +417,7 @@ int main(int argc, char *argv[])
{"test-position", 0, 0, OPT_TEST_POSITION},
{"test-coef", 1, 0, OPT_TEST_COEF},
{"test-nowait", 0, 0, OPT_TEST_NOWAIT},
{"process-id-file", 1, 0, OPT_PROCESS_ID_FILE},
{0, 0, 0, 0}
};
char *pcm_name = "default";
@ -493,7 +512,7 @@ int main(int argc, char *argv[])
rhwparams.format = snd_pcm_format_value(optarg);
if (rhwparams.format == SND_PCM_FORMAT_UNKNOWN) {
error(_("wrong extended format '%s'"), optarg);
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
}
break;
@ -588,6 +607,9 @@ int main(int argc, char *argv[])
case OPT_TEST_NOWAIT:
test_nowait = 1;
break;
case OPT_PROCESS_ID_FILE:
pidfile_name = optarg;
break;
default:
fprintf(stderr, _("Try `%s --help' for more information.\n"), command);
return 1;
@ -643,6 +665,19 @@ int main(int argc, char *argv[])
readn_func = snd_pcm_readn;
}
if (pidfile_name) {
errno = 0;
pidf = fopen (pidfile_name, "w");
if (pidf) {
(void)fprintf (pidf, "%d\n", getpid());
fclose(pidf);
pidfile_written = 1;
} else {
error(_("Cannot create process ID file %s: %s"),
pidfile_name, strerror (errno));
return 1;
}
}
signal(SIGINT, signal_handler);
signal(SIGTERM, signal_handler);
@ -670,10 +705,13 @@ int main(int argc, char *argv[])
if (verbose==2)
putchar('\n');
snd_pcm_close(handle);
handle = NULL;
free(audiobuf);
__end:
snd_output_close(log);
snd_config_update_free_global();
prg_exit(EXIT_SUCCESS);
/* avoid warning */
return EXIT_SUCCESS;
}
@ -725,7 +763,7 @@ static size_t test_wavefile_read(int fd, u_char *buffer, size_t *size, size_t re
return *size;
if ((size_t)safe_read(fd, buffer + *size, reqsize - *size) != reqsize - *size) {
error(_("read error (called from line %i)"), line);
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
return *size = reqsize;
}
@ -735,7 +773,7 @@ static size_t test_wavefile_read(int fd, u_char *buffer, size_t *size, size_t re
blimit = len; \
if ((buffer = realloc(buffer, blimit)) == NULL) { \
error(_("not enough memory")); \
exit(EXIT_FAILURE); \
prg_exit(EXIT_FAILURE); \
} \
}
@ -784,7 +822,7 @@ static ssize_t test_wavefile(int fd, u_char *_buffer, size_t size)
if (len < sizeof(WaveFmtBody)) {
error(_("unknown length of 'fmt ' chunk (read %u, should be %u at least)"),
len, (u_int)sizeof(WaveFmtBody));
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
check_wavefile_space(buffer, len, blimit);
test_wavefile_read(fd, buffer, &size, len, __LINE__);
@ -794,22 +832,22 @@ static ssize_t test_wavefile(int fd, u_char *_buffer, size_t size)
if (len < sizeof(WaveFmtExtensibleBody)) {
error(_("unknown length of extensible 'fmt ' chunk (read %u, should be %u at least)"),
len, (u_int)sizeof(WaveFmtExtensibleBody));
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
if (memcmp(fe->guid_tag, WAV_GUID_TAG, 14) != 0) {
error(_("wrong format tag in extensible 'fmt ' chunk"));
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
f->format = fe->guid_format;
}
if (LE_SHORT(f->format) != WAV_FMT_PCM &&
LE_SHORT(f->format) != WAV_FMT_IEEE_FLOAT) {
error(_("can't play WAVE-file format 0x%04x which is not PCM or FLOAT encoded"), LE_SHORT(f->format));
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
if (LE_SHORT(f->channels) < 1) {
error(_("can't play WAVE-files with %d tracks"), LE_SHORT(f->channels));
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
hwparams.channels = LE_SHORT(f->channels);
switch (LE_SHORT(f->bit_p_spl)) {
@ -842,7 +880,7 @@ static ssize_t test_wavefile(int fd, u_char *_buffer, size_t size)
default:
error(_(" can't play WAVE-files with sample %d bits in %d bytes wide (%d channels)"),
LE_SHORT(f->bit_p_spl), LE_SHORT(f->byte_p_spl), hwparams.channels);
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
break;
case 32:
@ -854,7 +892,7 @@ static ssize_t test_wavefile(int fd, u_char *_buffer, size_t size)
default:
error(_(" can't play WAVE-files with sample %d bits wide"),
LE_SHORT(f->bit_p_spl));
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
hwparams.rate = LE_INT(f->sample_fq);
@ -936,7 +974,7 @@ static int test_au(int fd, void *buffer)
return -1;
if ((size_t)safe_read(fd, buffer + sizeof(AuHeader), BE_INT(ap->hdr_size) - sizeof(AuHeader)) != BE_INT(ap->hdr_size) - sizeof(AuHeader)) {
error(_("read error"));
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
return 0;
}
@ -966,7 +1004,7 @@ static void set_params(void)
err = snd_pcm_hw_params_any(handle, params);
if (err < 0) {
error(_("Broken configuration for this PCM: no configurations available"));
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
if (mmap_flag) {
snd_pcm_access_mask_t *mask = alloca(snd_pcm_access_mask_sizeof());
@ -983,18 +1021,18 @@ static void set_params(void)
SND_PCM_ACCESS_RW_NONINTERLEAVED);
if (err < 0) {
error(_("Access type not available"));
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
err = snd_pcm_hw_params_set_format(handle, params, hwparams.format);
if (err < 0) {
error(_("Sample format non available"));
show_available_sample_formats(params);
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
err = snd_pcm_hw_params_set_channels(handle, params, hwparams.channels);
if (err < 0) {
error(_("Channels count non available"));
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
#if 0
@ -1052,14 +1090,14 @@ static void set_params(void)
if (err < 0) {
error(_("Unable to install hw params:"));
snd_pcm_hw_params_dump(params, log);
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
snd_pcm_hw_params_get_period_size(params, &chunk_size, 0);
snd_pcm_hw_params_get_buffer_size(params, &buffer_size);
if (chunk_size == buffer_size) {
error(_("Can't use period equal to buffer size (%lu == %lu)"),
chunk_size, buffer_size);
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
snd_pcm_sw_params_current(handle, swparams);
if (avail_min < 0)
@ -1090,7 +1128,7 @@ static void set_params(void)
if (snd_pcm_sw_params(handle, swparams) < 0) {
error(_("unable to install sw params:"));
snd_pcm_sw_params_dump(swparams, log);
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
if (verbose)
@ -1102,7 +1140,7 @@ static void set_params(void)
audiobuf = realloc(audiobuf, chunk_bytes);
if (audiobuf == NULL) {
error(_("not enough memory"));
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
// fprintf(stderr, "real chunk_size = %i, frags = %i, total = %i\n", chunk_size, setup.buf.block.frags, setup.buf.block.frags * chunk_size);
@ -1120,7 +1158,7 @@ static void set_params(void)
err = snd_pcm_mmap_begin(handle, &areas, &offset, &size);
if (err < 0) {
error("snd_pcm_mmap_begin problem: %s", snd_strerror(err));
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
for (i = 0; i < hwparams.channels; i++)
fprintf(stderr, "mmap_area[%i] = %p,%u,%u (%u)\n", i, areas[i].addr, areas[i].first, areas[i].step, snd_pcm_format_physical_width(hwparams.format));
@ -1164,7 +1202,7 @@ static void xrun(void)
snd_pcm_status_alloca(&status);
if ((res = snd_pcm_status(handle, status))<0) {
error(_("status error: %s"), snd_strerror(res));
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
if (snd_pcm_status_get_state(status) == SND_PCM_STATE_XRUN) {
if (monotonic) {
@ -1176,8 +1214,6 @@ static void xrun(void)
fprintf(stderr, _("%s!!! (at least %.3f ms long)\n"),
stream == SND_PCM_STREAM_PLAYBACK ? _("underrun") : _("overrun"),
diff.tv_sec * 1000 + diff.tv_nsec / 10000000.0);
if (verbose)
snd_pcm_dump(handle, log);
#else
fprintf(stderr, "%s !!!\n", _("underrun"));
#endif
@ -1196,7 +1232,7 @@ static void xrun(void)
}
if ((res = snd_pcm_prepare(handle))<0) {
error(_("xrun: prepare error: %s"), snd_strerror(res));
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
return; /* ok, data should be accepted again */
} if (snd_pcm_status_get_state(status) == SND_PCM_STATE_DRAINING) {
@ -1208,7 +1244,7 @@ static void xrun(void)
fprintf(stderr, _("capture stream format change? attempting recover...\n"));
if ((res = snd_pcm_prepare(handle))<0) {
error(_("xrun(DRAINING): prepare error: %s"), snd_strerror(res));
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
return;
}
@ -1218,7 +1254,7 @@ static void xrun(void)
snd_pcm_status_dump(status, log);
}
error(_("read/write error, state = %s"), snd_pcm_state_name(snd_pcm_status_get_state(status)));
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
/* I/O suspend handler */
@ -1235,7 +1271,7 @@ static void suspend(void)
fprintf(stderr, _("Failed. Restarting stream. ")); fflush(stderr);
if ((res = snd_pcm_prepare(handle)) < 0) {
error(_("suspend: prepare error: %s"), snd_strerror(res));
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
}
if (!quiet_mode)
@ -1540,7 +1576,7 @@ static ssize_t pcm_write(u_char *data, size_t count)
suspend();
} else if (r < 0) {
error(_("write error: %s"), snd_strerror(r));
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
if (r > 0) {
if (vumeter)
@ -1586,7 +1622,7 @@ static ssize_t pcm_writev(u_char **data, unsigned int channels, size_t count)
suspend();
} else if (r < 0) {
error(_("writev error: %s"), snd_strerror(r));
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
if (r > 0) {
if (vumeter) {
@ -1629,7 +1665,7 @@ static ssize_t pcm_read(u_char *data, size_t rcount)
suspend();
} else if (r < 0) {
error(_("read error: %s"), snd_strerror(r));
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
if (r > 0) {
if (vumeter)
@ -1672,7 +1708,7 @@ static ssize_t pcm_readv(u_char **data, unsigned int channels, size_t rcount)
suspend();
} else if (r < 0) {
error(_("readv error: %s"), snd_strerror(r));
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
if (r > 0) {
if (vumeter) {
@ -1729,7 +1765,7 @@ static void voc_write_silence(unsigned x)
l = chunk_size;
if (voc_pcm_write(buf, l) != (ssize_t)l) {
error(_("write error"));
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
x -= l;
}
@ -1771,7 +1807,7 @@ static void voc_play(int fd, int ofs, char *name)
buffer_pos = 0;
if (data == NULL) {
error(_("malloc error"));
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
if (!quiet_mode) {
fprintf(stderr, _("Playing Creative Labs Channel file '%s'...\n"), name);
@ -1780,14 +1816,14 @@ static void voc_play(int fd, int ofs, char *name)
while (ofs > (ssize_t)chunk_bytes) {
if ((size_t)safe_read(fd, buf, chunk_bytes) != chunk_bytes) {
error(_("read error"));
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
ofs -= chunk_bytes;
}
if (ofs) {
if (safe_read(fd, buf, ofs) != ofs) {
error(_("read error"));
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
}
hwparams.format = DEFAULT_FORMAT;
@ -1811,7 +1847,7 @@ static void voc_play(int fd, int ofs, char *name)
nextblock = buf[0] = 0;
if (l == -1) {
perror(name);
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
}
}
@ -1955,12 +1991,12 @@ static void voc_play(int fd, int ofs, char *name)
if (output && !quiet_mode) {
if (write(2, data, l) != l) { /* to stderr */
error(_("write error"));
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
} else {
if (voc_pcm_write(data, l) != l) {
error(_("write error"));
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
}
COUNT(l);
@ -2007,7 +2043,7 @@ static void begin_voc(int fd, size_t cnt)
if (write(fd, &vh, sizeof(VocHeader)) != sizeof(VocHeader)) {
error(_("write error"));
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
if (hwparams.channels > 1) {
/* write an extended block */
@ -2016,14 +2052,14 @@ static void begin_voc(int fd, size_t cnt)
bt.datalen_m = bt.datalen_h = 0;
if (write(fd, &bt, sizeof(VocBlockType)) != sizeof(VocBlockType)) {
error(_("write error"));
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
eb.tc = LE_SHORT(65536 - 256000000L / (hwparams.rate << 1));
eb.pack = 0;
eb.mode = 1;
if (write(fd, &eb, sizeof(VocExtBlock)) != sizeof(VocExtBlock)) {
error(_("write error"));
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
}
bt.type = 1;
@ -2033,13 +2069,13 @@ static void begin_voc(int fd, size_t cnt)
bt.datalen_h = (u_char) ((cnt & 0xFF0000) >> 16);
if (write(fd, &bt, sizeof(VocBlockType)) != sizeof(VocBlockType)) {
error(_("write error"));
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
vd.tc = (u_char) (256 - (1000000 / hwparams.rate));
vd.pack = 0;
if (write(fd, &vd, sizeof(VocVoiceData)) != sizeof(VocVoiceData)) {
error(_("write error"));
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
}
@ -2075,7 +2111,7 @@ static void begin_wave(int fd, size_t cnt)
break;
default:
error(_("Wave doesn't support %s format..."), snd_pcm_format_name(hwparams.format));
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
h.magic = WAV_RIFF;
tmp = cnt + sizeof(WaveHeader) + sizeof(WaveChunkHeader) + sizeof(WaveFmtBody) + sizeof(WaveChunkHeader) - 8;
@ -2111,7 +2147,7 @@ static void begin_wave(int fd, size_t cnt)
write(fd, &f, sizeof(WaveFmtBody)) != sizeof(WaveFmtBody) ||
write(fd, &cd, sizeof(WaveChunkHeader)) != sizeof(WaveChunkHeader)) {
error(_("write error"));
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
}
@ -2135,13 +2171,13 @@ static void begin_au(int fd, size_t cnt)
break;
default:
error(_("Sparc Audio doesn't support %s format..."), snd_pcm_format_name(hwparams.format));
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
ah.sample_rate = BE_INT(hwparams.rate);
ah.channels = BE_INT(hwparams.channels);
if (write(fd, &ah, sizeof(AuHeader)) != sizeof(AuHeader)) {
error(_("write error"));
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
}
@ -2155,7 +2191,7 @@ static void end_voc(int fd)
if (write(fd, &dummy, 1) != 1) {
error(_("write error"));
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
length_seek = sizeof(VocHeader);
if (hwparams.channels > 1)
@ -2263,7 +2299,7 @@ static void playback_go(int fd, size_t loaded, off64_t count, int rtype, char *n
r = safe_read(fd, audiobuf + l, c);
if (r < 0) {
perror(name);
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
fdcount += r;
if (r == 0)
@ -2302,14 +2338,14 @@ static void playback(char *name)
} else {
if ((fd = open64(name, O_RDONLY, 0)) == -1) {
perror(name);
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
}
/* read the file header */
dta = sizeof(AuHeader);
if ((size_t)safe_read(fd, audiobuf, dta) != dta) {
error(_("read error"));
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
if (test_au(fd, audiobuf) >= 0) {
rhwparams.format = hwparams.format;
@ -2321,7 +2357,7 @@ static void playback(char *name)
if ((size_t)safe_read(fd, audiobuf + sizeof(AuHeader),
dta - sizeof(AuHeader)) != dta - sizeof(AuHeader)) {
error(_("read error"));
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);;
}
if ((ofs = test_vocfile(audiobuf)) >= 0) {
pbrec_count = calc_count();
@ -2430,7 +2466,7 @@ static void capture(char *orig_name)
remove(name);
if ((fd = open64(name, O_WRONLY | O_CREAT, 0644)) == -1) {
perror(name);
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
filecount++;
}
@ -2453,7 +2489,7 @@ static void capture(char *orig_name)
break;
if (write(fd, audiobuf, c) != c) {
perror(name);
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
count -= c;
rest -= c;
@ -2500,12 +2536,12 @@ static void playbackv_go(int* fds, unsigned int channels, size_t loaded, off64_t
r = safe_read(fds[0], bufs[0], expected);
if (r < 0) {
perror(names[channel]);
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
for (channel = 1; channel < channels; ++channel) {
if (safe_read(fds[channel], bufs[channel], r) != r) {
perror(names[channel]);
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
}
if (r == 0)
@ -2552,7 +2588,7 @@ static void capturev_go(int* fds, unsigned int channels, off64_t count, int rtyp
for (channel = 0; channel < channels; ++channel) {
if ((size_t)write(fds[channel], bufs[channel], rv) != rv) {
perror(names[channel]);
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
}
r = r * bits_per_frame / 8;
@ -2585,7 +2621,7 @@ static void playbackv(char **names, unsigned int count)
alloced = 1;
} else if (count != channels) {
error(_("You need to specify %d files"), channels);
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
for (channel = 0; channel < channels; ++channel) {
@ -2611,7 +2647,7 @@ static void playbackv(char **names, unsigned int count)
if (alloced)
free(names);
if (ret)
exit(ret);
prg_exit(ret);
}
static void capturev(char **names, unsigned int count)
@ -2638,7 +2674,7 @@ static void capturev(char **names, unsigned int count)
alloced = 1;
} else if (count != channels) {
error(_("You need to specify %d files"), channels);
exit(EXIT_FAILURE);
prg_exit(EXIT_FAILURE);
}
for (channel = 0; channel < channels; ++channel) {
@ -2664,5 +2700,5 @@ static void capturev(char **names, unsigned int count)
if (alloced)
free(names);
if (ret)
exit(ret);
prg_exit(ret);
}