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+>Thread Cancellation [POSIX Section 18]</TITLE
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+NAME="POSIX-THREAD-CANCELLATION">Thread Cancellation [POSIX Section 18]</H1
+><DIV
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+CLASS="SECT2"
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+NAME="AEN13302">Functions Implemented</H2
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+CLASS="SCREEN"
+>int pthread_cancel(pthread_t thread);
+int pthread_setcancelstate(int state, int *oldstate);
+int pthread_setcanceltype(int type, int *oldtype);
+void pthread_testcancel(void);
+void pthread_cleanup_push( void (*routine)(void *),
+ void *arg);
+void pthread_cleanup_pop( int execute);</PRE
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+NAME="AEN13305">Functions Omitted</H2
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+><A
+NAME="AEN13308">Notes</H2
+><P
+>Asynchronous cancellation is only partially implemented. In
+particular, cancellation may occur in unexpected places in some
+functions. It is strongly recommended that only synchronous
+cancellation be used. </P
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