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28.7.7.37 mysql_init()
MYSQL *mysql_init(MYSQL *mysql)
Description
Allocates or initializes a MYSQL
object
suitable for
mysql_real_connect()
. If
mysql
is a NULL
pointer,
the function allocates, initializes, and returns a new object.
Otherwise, the object is initialized and the address of the
object is returned. If
mysql_init()
allocates a new
object, it is freed when
mysql_close()
is called to
close the connection.
In a nonmultithreaded environment,
mysql_init()
invokes
mysql_library_init()
automatically as necessary. However,
mysql_library_init()
is not
thread-safe in a multithreaded environment, and thus neither
is mysql_init()
. Before
calling mysql_init()
, either
call mysql_library_init()
prior to spawning any threads, or use a mutex to protect the
mysql_library_init()
call.
This should be done prior to any other client library call.
An initialized MYSQL*
handler.
NULL
if there was insufficient memory to
allocate a new object.
Document created the 26/06/2006, last modified the 26/10/2018
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