public inbox for newlib-cvs@sourceware.org
help / color / mirror / Atom feed
* [newlib-cygwin] Implement process-shared locks support
@ 2018-08-24 13:09 Sebastian Huber
0 siblings, 0 replies; only message in thread
From: Sebastian Huber @ 2018-08-24 13:09 UTC (permalink / raw)
To: newlib-cvs
https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=c3df6d5155f0ffc3337991fbc1796952edf2cd82
commit c3df6d5155f0ffc3337991fbc1796952edf2cd82
Author: kib <kib@FreeBSD.org>
Date: Sun Feb 28 17:52:33 2016 +0000
Implement process-shared locks support
for libthr.so.3, without breaking the ABI. Special value is stored in
the lock pointer to indicate shared lock, and offline page in the shared
memory is allocated to store the actual lock.
Reviewed by: vangyzen (previous version)
Discussed with: deischen, emaste, jhb, rwatson,
Martin Simmons <martin@lispworks.com>
Tested by: pho
Sponsored by: The FreeBSD Foundation
Diff:
---
newlib/libc/sys/rtems/include/sys/mman.h | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/newlib/libc/sys/rtems/include/sys/mman.h b/newlib/libc/sys/rtems/include/sys/mman.h
index 19d992e..1fce960 100644
--- a/newlib/libc/sys/rtems/include/sys/mman.h
+++ b/newlib/libc/sys/rtems/include/sys/mman.h
@@ -233,6 +233,13 @@ struct shmfd {
int shm_map(struct file *fp, size_t size, off_t offset, void **memp);
int shm_unmap(struct file *fp, void *mem, size_t size);
+int shm_access(struct shmfd *shmfd, struct ucred *ucred, int flags);
+struct shmfd *shm_alloc(struct ucred *ucred, mode_t mode);
+struct shmfd *shm_hold(struct shmfd *shmfd);
+void shm_drop(struct shmfd *shmfd);
+int shm_dotruncate(struct shmfd *shmfd, off_t length);
+
+extern struct fileops shm_ops;
#else /* !_KERNEL */
__BEGIN_DECLS
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2018-08-24 13:09 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-08-24 13:09 [newlib-cygwin] Implement process-shared locks support Sebastian Huber
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).