10067 Miscellaneous man page typos
Reviewed by: Robert Mustacchi <rm@joyent.com>
Reviewed by: Andy Fiddaman <andy@omniosce.org>
Reviewed by: Volker A. Brandt <vab@bb-c.de>

          --- old/usr/src/man/man3c/pthread_rwlock_timedwrlock.3c.man.txt
          +++ new/usr/src/man/man3c/pthread_rwlock_timedwrlock.3c.man.txt

   1    1  PTHREAD_RWLOCK_TIMEDWRLOCK(3C)                    Standard C Library Functions
   2    2  
   3    3  
   4    4  
   5    5  NAME
   6    6         pthread_rwlock_timedwrlock, pthread_rwlock_reltimedwrlock_np - lock a
   7    7         read-write lock for writing
   8    8  
   9    9  SYNOPSIS
  10   10         cc -mt [ flag... ] file... [ library... ]
  11   11         #include <pthread.h>
  12   12         #include <time.h>
  13   13  
  14   14         int pthread_rwlock_timedwrlock(pthread_rwlock_t *restrict rwlock,
  15   15              const struct timespec *restrict abs_timeout);
  16   16  
  17   17  
  18   18         int pthread_rwlock_reltimedwrlock_np(pthread_rwlock_t *restrict rwlock,
  19   19              const struct timespec *restrict rel_timeout);
  20   20  
  21   21  
  22   22  DESCRIPTION
  23   23         The pthread_rwlock_timedwrlock() function applies a write lock to the
  24   24         read-write lock referenced by rwlock as in the
  25   25         pthread_rwlock_wrlock(3C) function. If the lock cannot be acquired
  26   26         without waiting for other threads to unlock the lock, this wait will be
  27   27         terminated when the specified timeout expires. The timeout expires when
  28   28         the absolute time specified by abs_timeout passes, as measured by the
  29   29         CLOCK_REALTIME clock (that is, when the value of that clock equals or
  30   30         exceeds abs_timeout), or if the absolute time specified by abs_timeout
  31   31         has already been passed at the time of the call.
  32   32  
  33   33  
  34   34         The pthread_rwlock_reltimedwrlock_np() function is identical to the
  35   35         pthread_rwlock_timedwrlock() function, except that the timeout is
  36   36         specified as a relative time interval. The timeout expires when the
  37   37         time interval specified by rel_timeout passes, as measured by the
  38   38         CLOCK_REALTIME clock, or if the time interval specified by rel_timeout
  39   39         is negative at the time of the call.
  40   40  
  41   41  
  42   42         The resolution of the timeout is the resolution of the CLOCK_REALTIME
  43   43         clock. The timespec data type is defined in the <time.h> header.  Under
  44   44         no circumstances does either function fail with a timeout if the lock
  45   45         can be acquired immediately. The validity of the abs_timeout parameter
  46   46         need not be checked if the lock can be immediately acquired.
  47   47  
  48   48  
  49   49         If a signal that causes a signal handler to be executed is delivered to
  50   50         a thread blocked on a read- write lock with a call to
  51   51         pthread_rwlock_timedwrlock() or pthread_rwlock_reltimedwrlock_np(),
  52   52         upon return from the signal handler the thread resumes waiting for the
  53   53         lock as if it was not interrupted.
  54   54  
  55   55  
  56   56         The calling thread can deadlock if at the time the call is made it
  57   57         holds the read-write lock. The results are undefined if this function
  58   58         is called with an uninitialized read-write lock.
  59   59  
  60   60  RETURN VALUES
  61   61         The pthread_rwlock_timedwrlock() and pthread_rwlock_reltimedwrlock_np()
  62   62         functions return 0 if the lock for writing on the read-write lock
  63   63         object referenced by rwlock is acquired.  Otherwise, an error number is
  64   64         returned to indicate the error.
  65   65  
  66   66  ERRORS
  67   67         The pthread_rwlock_timedwrlock() and pthread_rwlock_reltimedwrlock_np()
  68   68         functions will fail if:
  69   69  
  70   70         ETIMEDOUT
  71   71                      The lock could not be acquired before the specified
  72   72                      timeout expired.
  73   73  
  74   74  
  75   75  
  76   76         The pthread_rwlock_timedwrlock() and pthread_rwlock_reltimedwrlock_np()
  77   77         functions may fail if:
  78   78  
  79   79         EDEADLK
  80   80                    The calling thread already holds the rwlock.
  81   81  
  82   82  
  83   83         EINVAL
  84   84                    The value specified by rwlock does not refer to an
  85   85                    initialized read-write lock object, or the timeout
  86   86                    nanosecond value is less than zero or greater than or equal
  87   87                    to 1,000 million.
  88   88  
  89   89  
  90   90  ATTRIBUTES
  91   91         See attributes(5) for descriptions of the following attributes:
  92   92  
  93   93  
  94   94  
  95   95  
  96   96         +--------------------+-----------------+
  97   97         |  ATTRIBUTE TYPE    | ATTRIBUTE VALUE |
  98   98         +--------------------+-----------------+
  99   99         |Interface Stability | See below.      |
 100  100         +--------------------+-----------------+
 101  101         |MT-Level            | MT-Safe         |
 102  102         +--------------------+-----------------+
 103  103  
 104  104  
 105  105         The pthread_rwlock_timedwrlock() function is Standard. The
 106  106         pthread_rwlock_reltimedwrlock_np() function is Stable.
 107  107  
 108  108  SEE ALSO
 109  109         pthread_rwlock_destroy(3C), pthread_rwlock_rdlock(3C),
 110  110         pthread_rwlock_timedrdlock(3C), pthread_rwlock_trywrlock(3C),
 111  111         pthread_rwlock_unlock(3C), pthread_rwlock_wrlock(3C), attributes(5),
 112  112         standards(5)
 113  113  
 114  114  
 115  115  
 116  116                                 January 30, 2004 PTHREAD_RWLOCK_TIMEDWRLOCK(3C)

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