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47 .TH PTHREAD_KEY_DELETE 3C "Mar 23, 2005"
49 pthread_key_delete \- delete thread-specific data key
53 cc -mt [ \fIflag\fR... ] \fIfile\fR... -lpthread [ \fIlibrary\fR... ]
56 \fBint\fR \fBpthread_key_delete\fR(\fBpthread_key_t\fR \fIkey\fR);
62 The \fBpthread_key_delete()\fR function deletes a thread-specific data key
63 previously returned by \fBpthread_key_create()\fR. The thread-specific data
64 values associated with \fIkey\fR need not be \fINULL\fR at the time
65 \fBpthread_key_delete()\fR is called. It is the responsibility of the
66 application to free any application storage or perform any cleanup actions for
67 data structures related to the deleted key or associated thread-specific data
68 in any threads; this cleanup can be done either before or after
69 \fBpthread_key_delete()\fR is called. Any attempt to use \fIkey\fR following
70 the call to \fBpthread_key_delete()\fR results in undefined behaviour.
73 The \fBpthread_key_delete()\fR function is callable from within destructor
74 functions. No destructor functions will be invoked by
75 \fBpthread_key_delete()\fR. Any destructor function that may have been
76 associated with \fIkey\fR will no longer be called upon thread exit.
80 If successful, the \fBpthread_key_delete()\fR function returns \fB0\fR.
81 Otherwise, an error number is returned to indicate the error.
85 The \fBpthread_key_delete()\fR function may fail if:
92 The \fIkey\fR value is invalid.
97 The \fBpthread_key_delete()\fR function will not return an error code of
102 See \fBattributes\fR(5) for descriptions of the following attributes:
110 ATTRIBUTE TYPE ATTRIBUTE VALUE
112 Interface Stability Standard
120 \fBpthread_key_create\fR(3C), \fBattributes\fR(5), \fBstandards\fR(5)