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Revert "Refactor to avoid nonnull checks on "this" pointer."

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This reverts commit 0008bdea02.

This patch introduced a regression.  Calling FOO=$(...) in zsh hangs
indefinitely and has to be killed forcefully.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
This commit is contained in:
Corinna Vinschen
2016-04-05 10:26:06 +02:00
parent 722e363c4d
commit 41abcc5825
9 changed files with 38 additions and 75 deletions
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55
winsup/cygwin/fhandler_dsp.cc
View File

@@ -65,7 +65,7 @@ class fhandler_dev_dsp::Audio
void convert_S16LE_S16BE (unsigned char *buffer, int size_bytes);
void fillFormat (WAVEFORMATEX * format,
int rate, int bits, int channels);
static unsigned blockSize (int rate, int bits, int channels);
unsigned blockSize (int rate, int bits, int channels);
void (fhandler_dev_dsp::Audio::*convert_)
(unsigned char *buffer, int size_bytes);
@@ -117,7 +117,6 @@ class fhandler_dev_dsp::Audio_out: public Audio
void stop (bool immediately = false);
int write (const char *pSampleData, int nBytes);
void buf_info (audio_buf_info *p, int rate, int bits, int channels);
static void default_buf_info (audio_buf_info *p, int rate, int bits, int channels);
void callback_sampledone (WAVEHDR *pHdr);
bool parsewav (const char *&pData, int &nBytes,
int rate, int bits, int channels);
@@ -152,7 +151,6 @@ public:
void stop ();
bool read (char *pSampleData, int &nBytes);
void buf_info (audio_buf_info *p, int rate, int bits, int channels);
static void default_buf_info (audio_buf_info *p, int rate, int bits, int channels);
void callback_blockfull (WAVEHDR *pHdr);
private:
@@ -503,11 +501,11 @@ void
fhandler_dev_dsp::Audio_out::buf_info (audio_buf_info *p,
int rate, int bits, int channels)
{
if (dev_)
p->fragstotal = MAX_BLOCKS;
if (this && dev_)
{
/* If the device is running we use the internal values,
possibly set from the wave file. */
p->fragstotal = MAX_BLOCKS;
p->fragsize = blockSize (freq_, bits_, channels_);
p->fragments = Qisr2app_->query ();
if (pHdr_ != NULL)
@@ -518,17 +516,10 @@ fhandler_dev_dsp::Audio_out::buf_info (audio_buf_info *p,
}
else
{
default_buf_info(p, rate, bits, channels);
}
}
void fhandler_dev_dsp::Audio_out::default_buf_info (audio_buf_info *p,
int rate, int bits, int channels)
{
p->fragstotal = MAX_BLOCKS;
p->fragsize = blockSize (rate, bits, channels);
p->fragments = MAX_BLOCKS;
p->bytes = p->fragsize * p->fragments;
}
}
/* This is called on an interupt so use locking.. Note Qisr2app_
@@ -962,23 +953,14 @@ fhandler_dev_dsp::Audio_in::waitfordata ()
return true;
}
void fhandler_dev_dsp::Audio_in::default_buf_info (audio_buf_info *p,
int rate, int bits, int channels)
{
p->fragstotal = MAX_BLOCKS;
p->fragsize = blockSize (rate, bits, channels);
p->fragments = 0;
p->bytes = 0;
}
void
fhandler_dev_dsp::Audio_in::buf_info (audio_buf_info *p,
int rate, int bits, int channels)
{
if (dev_)
p->fragstotal = MAX_BLOCKS;
p->fragsize = blockSize (rate, bits, channels);
if (this && dev_)
{
p->fragstotal = MAX_BLOCKS;
p->fragsize = blockSize (rate, bits, channels);
p->fragments = Qisr2app_->query ();
if (pHdr_ != NULL)
p->bytes = pHdr_->dwBytesRecorded - bufferIndex_
@@ -988,7 +970,8 @@ fhandler_dev_dsp::Audio_in::buf_info (audio_buf_info *p,
}
else
{
default_buf_info(p, rate, bits, channels);
p->fragments = 0;
p->bytes = 0;
}
}
@@ -1362,13 +1345,9 @@ fhandler_dev_dsp::_ioctl (unsigned int cmd, void *buf)
return -1;
}
audio_buf_info *p = (audio_buf_info *) buf;
if (audio_out_) {
audio_out_->buf_info (p, audiofreq_, audiobits_, audiochannels_);
} else {
Audio_out::default_buf_info(p, audiofreq_, audiobits_, audiochannels_);
}
debug_printf ("buf=%p frags=%d fragsize=%d bytes=%d",
buf, p->fragments, p->fragsize, p->bytes);
audio_out_->buf_info (p, audiofreq_, audiobits_, audiochannels_);
debug_printf ("buf=%p frags=%d fragsize=%d bytes=%d",
buf, p->fragments, p->fragsize, p->bytes);
return 0;
}
@@ -1380,13 +1359,9 @@ fhandler_dev_dsp::_ioctl (unsigned int cmd, void *buf)
return -1;
}
audio_buf_info *p = (audio_buf_info *) buf;
if (audio_in_) {
audio_in_->buf_info (p, audiofreq_, audiobits_, audiochannels_);
} else {
Audio_in::default_buf_info(p, audiofreq_, audiobits_, audiochannels_);
}
debug_printf ("buf=%p frags=%d fragsize=%d bytes=%d",
buf, p->fragments, p->fragsize, p->bytes);
audio_in_->buf_info (p, audiofreq_, audiobits_, audiochannels_);
debug_printf ("buf=%p frags=%d fragsize=%d bytes=%d",
buf, p->fragments, p->fragsize, p->bytes);
return 0;
}