1thr_exit(3C)             Standard C Library Functions             thr_exit(3C)
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NAME

6       thr_exit - terminate the calling thread
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SYNOPSIS

9       cc -mt [ flag... ] file...[ library... ]
10       #include <thread.h>
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12       void thr_exit(void *status);
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DESCRIPTION

16       The thr_exit() function terminates the calling thread, in a similar way
17       that exit(3C) terminates the calling process. If the calling thread  is
18       not  detached,  then  the  thread's ID and the exit status specified by
19       status are retained. The value status is then  made  available  to  any
20       successful  join with the terminating thread (see thr_join(3C)); other‐
21       wise, status is disregarded allowing the thread's ID  to  be  reclaimed
22       immediately.
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25       Any  cancellation  cleanup  handlers  that have been pushed and not yet
26       popped are popped in the reverse order that they were pushed  and  then
27       executed.  After  all cancellation cleanup handlers have been executed,
28       if the thread has  any  thread-specific  data,  appropriate  destructor
29       functions  will  be  called in an unspecified order. Thread termination
30       does not release any application visible process resources,  including,
31       but  not  limited to, mutexes and file descriptors, nor does it perform
32       any process level cleanup actions, including, but not limited to, call‐
33       ing any atexit() routines that might exist.
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36       An exiting thread runs with all signals blocked. All thread termination
37       functions, including cancellation cleanup handlers and  thread-specific
38       data destructor functions, are called with all signals blocked.
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41       If  any  thread,  including  the  main() thread, calls thr_exit(), only
42       that thread will exit.
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45       If main() returns or exits (either implicitly or  explicitly),  or  any
46       thread explicitly calls exit(), the entire process will exit.
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49       The  behavior  of thr_exit() is undefined if called from a cancellation
50       cleanup handler or destructor function that was invoked as a result  of
51       either an implicit or explicit call to thr_exit().
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54       After  a  thread  has  terminated, the result of access to local (auto)
55       variables of the thread is undefined. Thus, references to  local  vari‐
56       ables  of the exiting thread should not be used for the thr_exit() sta‐
57       tus parameter value.
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60       If any thread (except  the  main()  thread)  implicitly  or  explicitly
61       returns,  the result is the same as if the thread called thr_exit() and
62       it will return the value of status as the exit code.
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65       The process will terminate with an exit status of 0 after the last non-
66       daemon thread has terminated (including the main() thread). This behav‐
67       ior is the same as if the application had called exit() with a 0  argu‐
68       ment at thread termination time.
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RETURN VALUES

71       The  thr_exit() function cannot return to its caller.
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ERRORS

74       No errors are defined.
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ATTRIBUTES

77       See attributes(5) for descriptions of the following attributes:
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82       ┌─────────────────────────────┬─────────────────────────────┐
83       │      ATTRIBUTE TYPE         │      ATTRIBUTE VALUE        │
84       ├─────────────────────────────┼─────────────────────────────┤
85       │MT-Level                     │MT-Safe                      │
86       └─────────────────────────────┴─────────────────────────────┘
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SEE ALSO

89       exit(3C),      thr_create(3C),     thr_join(3C),     thr_keycreate(3C),
90       attributes(5), standards(5)
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NOTES

93       Although only POSIX implements cancellation, cancellation can  be  used
94       with Solaris threads, due to their interoperability.
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97       The  status  argument  should  not reference any variables local to the
98       calling thread.
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102SunOS 5.11                        2 Nov 2007                      thr_exit(3C)
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