SND_PCM_STOP(9) PCM API SND_PCM_STOP(9)NAME
snd_pcm_stop - try to stop all running streams in the substream group
SYNOPSIS
int snd_pcm_stop(struct snd_pcm_substream * substream, snd_pcm_state_t state);
ARGUMENTS
substream
the PCM substream instance
state
PCM state after stopping the stream
DESCRIPTION
The state of each stream is then changed to the given state unconditionally.
RETURN
Zero if succesful, or a negative error code.
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 SND_PCM_STOP(9)
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libssh2_channel_read_ex(3) libssh2 manual libssh2_channel_read_ex(3)NAME
libssh2_channel_read_ex - read data from a channel stream
SYNOPSIS
#include <libssh2.h>
ssize_t libssh2_channel_read_ex(LIBSSH2_CHANNEL *channel, int stream_id, char *buf, size_t buflen);
ssize_t libssh2_channel_read(LIBSSH2_CHANNEL *channel, char *buf, size_t buflen);
ssize_t libssh2_channel_read_stderr(LIBSSH2_CHANNEL *channel, char *buf, size_t buflen);
DESCRIPTION
Attempt to read data from an active channel stream. All channel streams have one standard I/O substream (stream_id == 0), and may have up
to 2^32 extended data streams as identified by the selected stream_id. The SSH2 protocol currently defines a stream ID of 1 to be the
stderr substream.
channel - active channel stream to read from.
stream_id - substream ID number (e.g. 0 or SSH_EXTENDED_DATA_STDERR)
buf - pointer to storage buffer to read data into
buflen - size of the buf storage
libssh2_channel_read(3) and libssh2_channel_read_stderr(3) are macros.
RETURN VALUE
Actual number of bytes read or negative on failure. It returns LIBSSH2_ERROR_EAGAIN when it would otherwise block. While LIB-
SSH2_ERROR_EAGAIN is a negative number, it isn't really a failure per se.
Note that a return value of zero (0) can in fact be a legitimate value and only signals that no payload data was read. It is not an error.
ERRORS
LIBSSH2_ERROR_SOCKET_SEND - Unable to send data on socket.
LIBSSH2_ERROR_CHANNEL_CLOSED - The channel has been closed.
SEE ALSO libssh2_poll_channel_read(3)libssh2 0.15 1 Jun 2007 libssh2_channel_read_ex(3)
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