rfiosetopt(3) [debian man page]

RFIOSETOPT(3)						      Rfio Library Functions						     RFIOSETOPT(3)

NAME

       rfiosetopt - set RFIO options

SYNOPSIS

       #include <sys/types.h>
       #include "rfio_api.h"

       int rfiosetopt (int opt, int *pval, int len)

       int rfio_setbufsize (int s, int bufsize)

DESCRIPTION

       rfiosetopt sets the RFIO option opt to the content of the memory cell pointed by pval.

       rfio_setbufsize sets the size of the readahead buffer to be used on a particular socket connection.

       opt can have on of the following values:

	      RFIO_READOPT
		     The value pointed by pval can be 0, RFIO_READBUF, RFIO_READAHEAD or RFIO_STREAM (V3).

		     If set to zero, a normal read will be used (one request to the server per read).

		     If  set to RFIO_READBUF, an internal buffer is allocated in the client API, each call to the server fills this buffer and the
		     user buffer is filled from the internal buffer. There is one server call per buffer fill.

		     If set to RFIO_READAHEAD, an initial call is sent to the server which pushes data to the client buffer until end of  file	is
		     reached  or  an  error  occurs  or  a  new  request comes from the client.  There is no intermediate buffer unless RFIO_READ-
		     BUF|RFIO_READAHEAD is specified.

		     If RFIO_STREAM is set, the V3 protocol is enabled.  This uses 2 socket connections between the client and the server and  the
		     server itself is multi-threaded allowing overlap of disk and network operations.  The data is pushed on the data socket until
		     end of file is reached or an error occurs. The transfer can be interrupted by sending a packet on the control socket.
		     Default is RFIO_READBUF.

		     The default internal buffer size is 128kB, but the buffer size can be set with an entry RFIO IOBUFSIZE in shift.conf or  thru
		     the environment variable RFIO_IOBUFSIZE.

	      RFIO_NETOPT
		     The  value  pointed  by pval can be RFIO_NONET or RFIO_NET.  If set to RFIO_NONET, the NET entries in shift.conf are ignored.
		     Default is RFIO_NET.

	      RFIO_NETRETRYOPT
		     The value pointed by pval can be RFIO_RETRYIT or RFIO_NOTIME2RETRY.

		     If set to RFIO_RETRYIT, there will be retries on failing connect.	The number of retries is given by the environment variable
		     RFIO_CONRETRY or the RFIO CONRETRY entry in shift.conf.  The retry interval (in seconds) is given by the environment variable
		     RFIO_CONRETRYINT or the RFIO CONRETRYINT entry.

		     If set to RFIO_NOTIME2RETRY, there will be no retry on failing connect.
		     Default is RFIO_RETRYIT.

	      RFIO_CONNECTOPT
		     The value pointed by pval can be RFIO_NOLOCAL or RFIO_FORCELOCAL.	If set to RFIO_FORCELOCAL, no parsing is done on pathname.
		     The file is assumed to be local.  Default is RFIO_NOLOCAL.

       The len argument is ignored.

       s is the file descriptor of the receiving socket.

       bufsize is the size of the readahead buffer to be used.

RETURN VALUE

       rfiosetopt returns 0 if the operation was successful or -1 if the operation failed.  In the latter case, serrno is set appropriately.

ERRORS

       ENOMEM	    buffer could not be allocated.

       EINVAL	    opt is not a valid option, bufsize is negative or the user tries to change the buffer size after the actual I/O has started.

SEE ALSO

       rfio_open(3), rfioreadopt(3)

AUTHOR

       LCG Grid Deployment Team

LCG
					       $Date: 2010-02-15 10:01:40 +0100 (Mon, 15 Feb 2010) $				     RFIOSETOPT(3)

Check Out this Related Man Page

OPENPAM_STRADDCH(3)					   BSD Library Functions Manual 				       OPENPAM_STRADDCH(3)

NAME

     openpam_straddch -- add a character to a string, expanding the buffer if needed

LIBRARY

     Pluggable Authentication Module Library (libpam, -lpam)

SYNOPSIS

     #include <sys/types.h>
     #include <security/pam_appl.h>
     #include <security/openpam.h>

     int
     openpam_straddch(char **str, size_t *size, size_t *len, int ch);

DESCRIPTION

     The openpam_straddch() function appends a character to a dynamically allocated NUL-terminated buffer, reallocating the buffer as needed.

     The str argument points to a variable containing either a pointer to an existing buffer or NULL.  If the value of the variable pointed to by
     str is NULL, a new buffer is allocated.

     The size and len argument point to variables used to hold the size of the buffer and the length of the string it contains, respectively.

     The final argument, ch, is the character that should be appended to the string.  If ch is 0, nothing is appended, but a new buffer is still
     allocated if str is NULL.	This can be used to ``bootstrap'' the string.

     If a new buffer is allocated or an existing buffer is reallocated to make room for the additional character, str and size are updated accord-
     ingly.

     The openpam_straddch() function ensures that the buffer is always NUL-terminated.

     If the openpam_straddch() function is successful, it increments the integer variable pointed to by len (unless ch was 0) and returns 0.  Oth-
     erwise, it leaves the variables pointed to by str, size and len unmodified, sets errno to ENOMEM and returns -1.

RETURN VALUES

     The openpam_straddch() function returns 0 on success and -1 on failure.

SEE ALSO

     pam(3), pam_strerror(3)

STANDARDS

     The openpam_straddch() function is an OpenPAM extension.

AUTHORS

     The openpam_straddch() function and this manual page were developed by Dag-Erling Smorgrav <des@des.no>.

BSD
								September 12, 2014							       BSD

Linux and UNIX Man Pages

rfiosetopt(3) [debian man page]

Check Out this Related Man Page