pthread_equal(3)

1pthread_equal(3)           Library Functions Manual           pthread_equal(3)
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NAME

6       pthread_equal - compare thread IDs
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LIBRARY

9       POSIX threads library (libpthread, -lpthread)
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SYNOPSIS

12       #include <pthread.h>
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14       int pthread_equal(pthread_t t1, pthread_t t2);
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DESCRIPTION

17       The pthread_equal() function compares two thread identifiers.
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RETURN VALUE

20       If  the  two  thread  IDs  are equal, pthread_equal() returns a nonzero
21       value; otherwise, it returns 0.
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ERRORS

24       This function always succeeds.
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ATTRIBUTES

27       For an  explanation  of  the  terms  used  in  this  section,  see  at‐
28       tributes(7).
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30       ┌────────────────────────────────────────────┬───────────────┬─────────┐
31       │Interface                                   │ Attribute     │ Value   │
32       ├────────────────────────────────────────────┼───────────────┼─────────┤
33       │pthread_equal()                             │ Thread safety │ MT-Safe │
34       └────────────────────────────────────────────┴───────────────┴─────────┘
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STANDARDS

37       POSIX.1-2008.
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HISTORY

40       POSIX.1-2001.
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NOTES

43       The  pthread_equal() function is necessary because thread IDs should be
44       considered opaque:  there  is  no  portable  way  for  applications  to
45       directly compare two pthread_t values.
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