diff options
| author | Alexandre Ratchov <ratchov@cvs.openbsd.org> | 2010-01-10 21:47:42 +0000 |
|---|---|---|
| committer | Alexandre Ratchov <ratchov@cvs.openbsd.org> | 2010-01-10 21:47:42 +0000 |
| commit | 37e6be3704bca205ce132f6b272639465cd841f4 (patch) | |
| tree | 2a923a2c6b2319e21c555333db83e091842af53a /usr.bin/aucat/wav.c | |
| parent | b039c5e2f74be6a127e392ec2effc1aebc324126 (diff) | |
Add traces to help tracking subtle timing bugs often causing
underuns and overruns; such bugs are hard to debug with ktrace
or a debugger. They are also handy to debug or monitor code
using aucat.
To enable traces, compile aucat with ``make DEBUG=-DDEBUG'' and
use the -d option multiple times.
ok jakemsr
Diffstat (limited to 'usr.bin/aucat/wav.c')
| -rw-r--r-- | usr.bin/aucat/wav.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/usr.bin/aucat/wav.c b/usr.bin/aucat/wav.c index 48563ed0ba1..aa6c7670341 100644 --- a/usr.bin/aucat/wav.c +++ b/usr.bin/aucat/wav.c @@ -24,6 +24,9 @@ #include "conf.h" #include "dev.h" #include "wav.h" +#ifdef DEBUG +#include "dbg.h" +#endif short wav_ulawmap[256] = { -32124, -31100, -30076, -29052, -28028, -27004, -25980, -24956, @@ -447,6 +450,12 @@ wav_read(struct file *file, unsigned char *data, unsigned count) if (f->rbytes >= 0 && count > f->rbytes) { count = f->rbytes; /* file->rbytes fits in count */ if (count == 0) { +#ifdef DEBUG + if (debug_level >= 3) { + file_dbg(&f->pipe.file); + dbg_puts(": read complete\n"); + } +#endif file_eof(&f->pipe.file); return 0; } @@ -472,6 +481,12 @@ wav_write(struct file *file, unsigned char *data, unsigned count) if (f->wbytes >= 0 && count > f->wbytes) { count = f->wbytes; /* wbytes fits in count */ if (count == 0) { +#ifdef DEBUG + if (debug_level >= 3) { + file_dbg(&f->pipe.file); + dbg_puts(": write complete\n"); + } +#endif file_hup(&f->pipe.file); return 0; } |