개요

• 솔라나라에 설명된 어플리케이션에 대해 맨 페이지를 찾아 출력한다.
• MAN 페이지에 대한 설명은 윈디하나의 솔라나라: MAN 페이지을 참고하자.
• svcadm(8)을 검색하려면 섹션에서 8 을 선택하고, 맨 페이지 이름에 svcadm을 입력하고 검색을 누른다.

pthread_testcancel(3c)

Standard C Library Functions                            pthread_testcancel(3C)



NAME
       pthread_testcancel - create cancellation point in the calling thread

SYNOPSIS
       #include <pthread.h>

       void pthread_testcancel(void);

DESCRIPTION
       The pthread_testcancel() function forces testing for cancellation. This
       is useful when you need to execute code  that  runs  for  long  periods
       without  encountering  cancellation  points;  such as a library routine
       that executes long-running computations  without  cancellation  points.
       This  type of code can block cancellation for unacceptable long periods
       of time. One strategy for avoiding blocking cancellation for long peri‐
       ods,  is  to  insert  calls to pthread_testcancel() in the long-running
       computation code and to setup a cancellation  handler  in  the  library
       code, if required.

RETURN VALUES
       The pthread_testcancel() function returns void.

ERRORS
       The pthread_testcancel() function does not return errors.

EXAMPLES
       See  cancellation(7)  for  an  example of using pthread_testcancel() to
       force testing for cancellation and a discussion  of  cancellation  con‐
       cepts.

ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:


       tab()  box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i) ATTRIBUTE TYPEAT‐
       TRIBUTE VALUE _ Interface StabilityCommitted _ MT-LevelMT-Safe _  Stan‐
       dardSee standards(7).


SEE ALSO
       pthread_cleanup_pop(3C),   pthread_cleanup_push(3C),  pthread_exit(3C),
       pthread_join(3C),    pthread_setcancelstate(3C),     pthread_setcancel‐
       type(3C),  setjmp(3C), intro(3), attributes(7), cancellation(7), condi‐
       tion(7), standards(7)

NOTES
       The pthread_testcancel() function has no effect if cancellation is dis‐
       abled.


       Use  pthread_testcancel()  with pthread_setcanceltype() called with its
       canceltype set  to  PTHREAD_CANCEL_DEFERRED.  The  pthread_testcancel()
       function  operation  is undefined if pthread_setcanceltype() was called
       with its canceltype argument set to PTHREAD_CANCEL_ASYNCHRONOUS.


       It is possible to kill a thread when it is holding a resource, such  as
       lock  or  allocated memory. If that thread has not setup a cancellation
       cleanup handler to release the held resource, the application is  "can‐
       cel-unsafe".  See  attributes(7)  for  a  discussion  of Cancel-Safety,
       Deferred-Cancel-Safety, and Asynchronous-Cancel-Safety.



Oracle Solaris 11.4               16 May 2014           pthread_testcancel(3C)