summaryrefslogtreecommitdiff
path: root/lib/libpthread/stdio/README
diff options
context:
space:
mode:
Diffstat (limited to 'lib/libpthread/stdio/README')
-rw-r--r--lib/libpthread/stdio/README40
1 files changed, 0 insertions, 40 deletions
diff --git a/lib/libpthread/stdio/README b/lib/libpthread/stdio/README
deleted file mode 100644
index 017f61f1b46..00000000000
--- a/lib/libpthread/stdio/README
+++ /dev/null
@@ -1,40 +0,0 @@
-This is a threadsafe stdio based on the BSD stdio written by Chris Torek.
-
-INCLUDE FILES AND PORTING
-To continue to make this package portable, some basic rules on includes
-files must be followed.
-
-pthread.h should be included first (if it is to be included).
-stdio.h should be included.
-
-INTERNAL LOCKING
-1. All functions that can be called by the user must have __flockfile at the
- begining and a __funlockfile at the end. __Flockfile is a counting mutex,
- The thread that owns the lock can call __flockfile as many times as
- it wants, but must call an equal number of __funlockfile before the
- lock will be released.
-2. All functions starting with __ shouldn't need addtional locking.
-3. Anything that writes the variable __sglue should lock __sfp_mutex,
- check __sfp_state, and do a condion wait if it is set.
-4. Anything that checks fp->_flag for valididity should also lock
- __sfp_mutex.
-5. Anything that reads the variable __sglue should lock __sfp_mutex, increment
- __sfp_state, and then unlock the mutex. At function return it should
- lock the mutex again decrement __sfp_state and check if zero. If so
- do a cond_signal, and unlock the mutex.
-6. The functions fopen, fdopen, and freopen are the only functions that
- will change a fp->_file
-7. fdopen and fopen both allocate the next fp by locking __sfp_mutex
- checking fp->_flags and then setting it if free.
-8. freopen tries to preserve fp->_file. It sets __sfp_mutex, then it
- tries to lock fp->_file and close it.
-9. __sinit is done with a pthread_once routine.
-
-Copyright (c) 1993 Chris Provenzano. All rights reserved.
-
-This product includes software developed by the Univeristy of California,
-Berkeley and its contributors.
-
-
-Things to do.
-Fix printf so it uses the ininf function.