src-test2/lib/libc_r/uthread/uthread_read.c, branch release/5.5.0

Remove much of the dereferencing of the fd table entries to look

2002-08-29T23:06:07Z

at file flags and replace it with functions that will avoid null pointer checks. MFC to be done by archie ;-) PR: 42100 Reviewed by: archie, robert MFC after: 3 days

To be consistent, use the __weak_reference macro from

2001-04-10T04:19:21Z

instead of #pragma weak to create weak definitions. Suggested by: bde

Add weak definitions for wrapped system calls. In general:

2001-01-24T13:03:38Z

_foo - wrapped system call foo - weak definition to _foo and for cancellation points: _foo - wrapped system call __foo - enter cancellation point, call _foo(), leave cancellation point foo - weak definition to __foo Change use of global _thread_run to call a function to get the currently running thread. Make all pthread_foo functions weak definitions to _pthread_foo, where _pthread_foo is the implementation. This allows an application to provide its own pthread functions. Provide slightly different versions of pthread_mutex_lock and pthread_mutex_init so that we can tell the difference between a libc mutex and an application mutex. Threads holding mutexes internal to libc should never be allowed to exit, call signal handlers, or cancel. Approved by: -arch

Simplify sytem call renaming. Instead of _foo() <-- _libc_foo <-- foo(),

2000-01-27T23:07:25Z

just use _foo() <-- foo(). In the case of a libpthread that doesn't do call conversion (such as linuxthreads and our upcoming libpthread), this is adequate. In the case of libc_r, we still need three names, which are now _thread_sys_foo() <-- _foo() <-- foo(). Convert all internal libc usage of: aio_suspend(), close(), fsync(), msync(), nanosleep(), open(), fcntl(), read(), and write() to _foo() instead of foo(). Remove all internal libc usage of: creat(), pause(), sleep(), system(), tcdrain(), wait(), and waitpid(). Make thread cancellation fully POSIX-compliant. Suggested by: deischen

Track libc's three-tier symbol naming. libc_r must currently implement

2000-01-12T09:28:58Z

the _libc_*() entry points and add *() weak aliases. This will all change for the better when libc_r becomes libpthread.

add pthread_cancel, obtained from OpenBSD.

1999-11-28T05:38:13Z

eischen (Daniel Eischen) added wrappers to protect against cancled threads orphaning internal resources. the cancelability code is still a bit fuzzy but works for test programs of my own, OpenBSD's and some examples from ORA's books. add readdir_r to both libc and libc_r add some 'const' attributes to function parameters Reviewed by: eischen, jasone

$Id$ -> $FreeBSD$

1999-08-28T00:22:10Z

Add RCS IDs to those files without them.

1999-08-05T12:15:30Z

Fix copyrights (s/REGENTS/AUTHOR). Suggested by: tg Approved by: jb

Check the access mode in the flags before waiting on a read or a write

1998-06-10T22:28:45Z

that might never be possible if the file was not opened in the corrent mode. This prevents a hang for bad programs. Why do people code like that?

Implement compile time debug support instead of tracking file name and

1998-06-09T23:21:05Z

line number every time a file descriptor is locked. This looks like a big change but it isn't. It should reduce the size of libc_r and make it run slightly faster.