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author | Florian Weimer <fweimer@redhat.com> | 2021-06-21 08:25:15 +0200 |
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committer | Florian Weimer <fweimer@redhat.com> | 2021-06-21 08:25:15 +0200 |
commit | b7a0bfbd2f3eca602584f51f935599a776784a93 (patch) | |
tree | c1d0bc83894fe14a7031aca4b4bcb817b657f151 /sysdeps | |
parent | a2014d311b2b2a7d8fcf2f502493404d7ec2601c (diff) | |
download | glibc-b7a0bfbd2f3eca602584f51f935599a776784a93.zip glibc-b7a0bfbd2f3eca602584f51f935599a776784a93.tar.gz glibc-b7a0bfbd2f3eca602584f51f935599a776784a93.tar.bz2 |
rt: Replace generic stub of shm_open with the posix version
Result of: git mv -f sysdeps/posix/shm_open.c rt
and manual removal of the _POSIX_MAPPED_FILES preprocessor condition.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Diffstat (limited to 'sysdeps')
-rw-r--r-- | sysdeps/posix/shm_open.c | 62 |
1 files changed, 0 insertions, 62 deletions
diff --git a/sysdeps/posix/shm_open.c b/sysdeps/posix/shm_open.c deleted file mode 100644 index 1817c52..0000000 --- a/sysdeps/posix/shm_open.c +++ /dev/null @@ -1,62 +0,0 @@ -/* shm_open -- open a POSIX shared memory object. Generic POSIX file version. - Copyright (C) 2001-2021 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <https://www.gnu.org/licenses/>. */ - -#include <unistd.h> - -#if ! _POSIX_MAPPED_FILES - -# include <rt/shm_open.c> - -#else - -# include <errno.h> -# include <fcntl.h> -# include <pthread.h> -# include <shm-directory.h> - - -/* Open shared memory object. */ -int -shm_open (const char *name, int oflag, mode_t mode) -{ - struct shmdir_name dirname; - if (__shm_get_name (&dirname, name, false) != 0) - { - __set_errno (EINVAL); - return -1; - } - - oflag |= O_NOFOLLOW | O_CLOEXEC; - - /* Disable asynchronous cancellation. */ - int state; - pthread_setcancelstate (PTHREAD_CANCEL_DISABLE, &state); - - int fd = open (dirname.name, oflag, mode); - if (fd == -1 && __glibc_unlikely (errno == EISDIR)) - /* It might be better to fold this error with EINVAL since - directory names are just another example for unsuitable shared - object names and the standard does not mention EISDIR. */ - __set_errno (EINVAL); - - pthread_setcancelstate (state, NULL); - - return fd; -} - -#endif /* _POSIX_MAPPED_FILES */ |