name_open()

Open a name for a server connection

Synopsis:

#include <sys/iofunc.h>
#include <sys/dispatch.h>

int name_open( const char * name, 
               int flags );

Arguments:

name

The name that you want to open for a server connection.

flags

Flags that affect the function's behavior:

NAME_FLAG_ATTACH_GLOBAL — search for the name globally instead of locally.

Library:

libc

Use the -l c option to qcc to link against this library. This library is usually included automatically.

Description:

The name_open() function opens name for a server connection. No ordering is guaranteed when accessing resources on other nodes.

Note: If the global name service, gns, is running on your system, an _IO_CONNECT message with a subtype of _IO_CONNECT_OPEN is sent to the server when a client calls name_open(). The server application must be able handle this message. For an example, see the documentation for name_attach().

Returns:

A nonnegative integer representing a side-channel connection ID (see ConnectAttach()), or -1 if an error occurred (errno is set).

Errors:

EACCES: Search permission is denied on a component of the name.
EBADFSYS: While attempting to open the named file, either the file itself or a component of the path prefix was found to be corrupted. A system failure—from which no automatic recovery is possible—occurred while the file was being written to, or while the directory was being updated. You'll need to invoke appropriate systems-administration procedures to correct this situation before proceeding.
EBUSY: The connection specified by name has already been opened, and additional connections aren't permitted.
EINTR: The name_open() operation was interrupted by a signal.
EISDIR: The named path is a directory.
ELOOP: Too many levels of symbolic links or prefixes.
EMFILE: All file descriptors available to the process are currently open.
ENAMETOOLONG: The length of the name string exceeds PATH_MAX, or a pathname component is longer than NAME_MAX.
ENFILE: Too many files are currently open in the system.
ENOENT: The connection specified by name doesn't exist.
ENOTDIR: A component of the name prefix isn't a directory.

Examples:

See name_attach().

Classification:

QNX Neutrino

Safety:
Cancellation point	Yes
Interrupt handler	No
Signal handler	Yes
Thread	Yes