Query: rfio_lockf
OS: debian
Section: 3
Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar
RFIO_LOCKF(3) Rfio Library Functions RFIO_LOCKF(3)NAMErfio_lockf - provide record locking on filesSYNOPSIS#include <sys/types.h> #include "rfio_api.h" int rfio_lockf (int sd, int op, long siz); Under Linux, for large files: #define _LARGEFILE64_SOURCE #include <sys/types.h> #include "rfio_api.h" int rfio_lockf64 (int sd, int op, off64_t siz); For large files, under other systems: #include <sys/types.h> #include "rfio_api.h" int rfio_lockf64 (int sd, int op, off64_t siz);DESCRIPTIONrfio_lockf restricts access to regions of files to the calling process. sd is the file descriptor returned by a previous rfio_open. op specifies the action to be taken: F_ULOCK unlock a region. F_LOCK lock a region. F_TLOCK test and lock a region. F_TEST test a region for other locks. siz gives the size of the region to be locked, starting at the current file offset. rfio_lockf64 must be used for large files and uses an off64_t instead of a long to specify the size of the region to be locked.RETURN VALUEThis routine returns 0 if the operation was successful or -1 if the operation failed. In the latter case, serrno is set appropriately.ERRORSEBADF sd is not a valid descriptor. EACCES The file region is locked and F_TEST or F_TLOCK was specified. EINVAL incorrect value for op or siz. SENOSHOST Host unknown. SENOSSERV Service unknown. SETIMEDOUT Timed out. SECONNDROP Connection closed by remote end. SECOMERR Communication error.SEE ALSOrfio_open(3)AUTHORLCG Grid Deployment TeamLCG$Date: 2005/03/31 13:13:03 $ RFIO_LOCKF(3)
Related Man Pages |
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lockf(3) - mojave |
rfio_fseek(3) - debian |
rfio_ftell(3) - debian |
rfio_lockf64(3) - debian |
lockf(3) - freebsd |
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