Provided by: libmongoc-doc_1.3.1-1_all 

NAME
mongoc_stream_read() - The mongoc_stream_read() function shall perform a read from a mongoc_stream_t.
It's modeled on the API and semantics of read(), though the parameters map only loosely.
SYNOPSIS
ssize_t
mongoc_stream_read (mongoc_stream_t *stream,
void *buf,
size_t count,
size_t min_bytes,
int32_t timeout_msec);
PARAMETERS
stream A mongoc_stream_t \&.
buf The buffer to read into.
count The number of bytes to read.
min_bytes
The minimum number of bytes to read, or else indicate failure.
timeout_msec
The number of milliseconds to wait before failure, a timeout of 0 will not block. If negative, use
the default timeout.
The mongoc_stream_read(3) function shall perform a read from a mongoc_stream_t \&. It's modeled on the
API and semantics of read(3) , though the parameters map only loosely.
RETURNS
The mongoc_stream_read function returns the number of bytes read on success. It returns >= 0 and <
min_bytes when end‐of‐file is encountered and ‐1 on failure. errno is set upon failure.
SEE ALSO
mongoc_stream_readv(3)
mongoc_stream_write(3)
mongoc_stream_writev(3)
COLOPHON
This page is part of MongoDB C Driver. Please report any bugs at
https://jira.mongodb.org/browse/CDRIVER.
MongoDB C Driver 2016‐01‐18 MONGOC_STREAM_READ(3)