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author | Sergey Poznyakoff <gray@gnu.org.ua> | 2011-11-11 10:37:37 +0000 |
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committer | Sergey Poznyakoff <gray@gnu.org.ua> | 2011-11-11 10:37:37 +0000 |
commit | 99d79193981246f988f10cde380f339f1aca7a70 (patch) | |
tree | 0ea660bb3ee85550ae0427f6e33ec07094355a0d /doc | |
parent | 902a2e4bb5aa53241898ae34dcf7aafb29df7b7e (diff) | |
download | gdbm-99d79193981246f988f10cde380f339f1aca7a70.tar.gz gdbm-99d79193981246f988f10cde380f339f1aca7a70.tar.bz2 |
Support close-on-exec flag for gdbm_open call.
* src/gdbm.h.in (GDBM_CLOEXEC): New flag.
* src/systems.h [O_CLOEXEC]: Provide a placeholder definition.
* src/gdbmopen.c (gdbm_open): Honor the GDBM_CLOEXEC flag.
* compat/dbmopen.c (ndbm_open_dir_file0): Mask out open mode
before comparing with GDBM_READER.
Support GDBM_CLOEXEC.
(dbm_open): Translate O_CLOEXEC to GDBM_CLOEXEC.
* doc/gdbm.texinfo: Document GDBM_CLOEXEC.
* NEWS: Update.
Diffstat (limited to 'doc')
-rw-r--r-- | doc/gdbm.texinfo | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/doc/gdbm.texinfo b/doc/gdbm.texinfo index 010f6f0..1876c3a 100644 --- a/doc/gdbm.texinfo +++ b/doc/gdbm.texinfo @@ -296,10 +296,20 @@ The following may also be logically or'd into the database flags: synchronized to the disk, @samp{GDBM_NOLOCK}, which prevents the library from performing any locking on the database file, and @samp{GDBM_NOMMAP}, which disables the memory mapping mechanism. The option @samp{GDBM_FAST} is -now obsolete, since @code{gdbm} defaults to no-sync mode. Any error detected -will cause a return value of @samp{NULL} and an appropriate value will be in -@code{gdbm_errno} (@pxref{Variables}). If no errors occur, a pointer to the -@code{gdbm} file descriptor will be returned. +now obsolete, since @code{gdbm} defaults to no-sync mode. + +@kwindex GDBM_CLOEXEC +@cindex close-on-exec +If the host @samp{open} call +@ifhtml +(@uref{http://www.manpagez.com/man/2/open, open(2)}) +@end ifhtml +@ifnothtml +(@pxref{open,,,open(2),open(2) man page}) +@end ifnothtml +supports the @samp{O_CLOEXEC} flag, the @samp{GDBM_CLOEXEC} can be +or'd into the flags, to enable the close-on-exec flag for the +database file descriptor. @item mode File mode (see @ifhtml @@ -1578,7 +1588,8 @@ The functions below implement the @acronym{POSIX} @samp{ndbm} interface: Opens a database. The @var{file} argument is the full name of the database file to be opened. The function opens two files: @file{@var{file}.pag} and @file{@var{file}.dir}. The @var{flags} and -@var{mode} arguments have the same meaning as the second and third arguments of +@var{mode} arguments have the same meaning as the second and third +arguments of @ifhtml @uref{http://www.manpagez.com/man/2/open,,open(2)}, @end ifhtml |