Help wanted Post: 4358

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Top Forums Programming Help wanted Post 4358 by reddyb on Tuesday 24th of July 2001 02:30:26 PM

07-24-2001

Registered User

Threads in Unix

Hi,
I know very little about C and Unix. I have written a program to use threads. The program needs to get some values from a very large database.
I wrote a simple program and compiled but got the following errors.....

cc mythread.c -lthread

"/usr/include/pthread.h", line 120: syntax error before or at: *
"/usr/include/pthread.h", line 121: function cannot return function or array
"/usr/include/pthread.h", line 121: syntax error before or at: void
"/usr/include/pthread.h", line 121: warning: syntax error: empty declaration
"/usr/include/pthread.h", line 123: syntax error before or at: void
"/usr/include/pthread.h", line 124: warning: function prototype parameters must
have types
"/usr/include/pthread.h", line 125: syntax error before or at: *
"/usr/include/pthread.h", line 126: syntax error before or at: *
"/usr/include/pthread.h", line 127: syntax error before or at: *
"/usr/include/pthread.h", line 128: syntax error before or at: *
"/usr/include/pthread.h", line 129: syntax error before or at: *
"/usr/include/pthread.h", line 131: syntax error before or at: *
"/usr/include/pthread.h", line 133: syntax error before or at: *
"/usr/include/pthread.h", line 134: syntax error before or at: *
"/usr/include/pthread.h", line 135: syntax error before or at: *
"/usr/include/pthread.h", line 136: syntax error before or at: *
"/usr/include/pthread.h", line 137: syntax error before or at: *
"/usr/include/pthread.h", line 137: function cannot return function or array
"/usr/include/pthread.h", line 137: syntax error before or at: )
"/usr/include/pthread.h", line 137: warning: syntax error: empty declaration
"/usr/include/pthread.h", line 138: cannot recover from previous errors

I am using DYNIX/ptx, v 4.5

YOur help will be highly appreciated

thanks
reddyb

Last edited by reddyb; 07-25-2001 at 10:44 AM..

reddyb

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pthread

pthread.h(3HEAD)						      Headers							  pthread.h(3HEAD)

NAME

       pthread.h, pthread - threads

SYNOPSIS

       #include <pthread.h>

DESCRIPTION

       The <pthread.h> header defines the following symbols:

       PTHREAD_BARRIER_SERIAL_THREAD
       PTHREAD_CANCEL_ASYNCHRONOUS
       PTHREAD_CANCEL_ENABLE
       PTHREAD_CANCEL_DEFERRED
       PTHREAD_CANCEL_DISABLE
       PTHREAD_CANCELED
       PTHREAD_COND_INITIALIZER
       PTHREAD_CREATE_DETACHED
       PTHREAD_CREATE_JOINABLE
       PTHREAD_EXPLICIT_SCHED
       PTHREAD_INHERIT_SCHED
       PTHREAD_MUTEX_DEFAULT
       PTHREAD_MUTEX_ERRORCHECK
       PTHREAD_MUTEX_INITIALIZER
       PTHREAD_MUTEX_NORMAL
       PTHREAD_MUTEX_RECURSIVE
       PTHREAD_ONCE_INIT
       PTHREAD_PRIO_INHERIT
       PTHREAD_PRIO_NONE
       PTHREAD_PRIO_PROTECT
       PTHREAD_PROCESS_SHARED
       PTHREAD_PROCESS_PRIVATE
       PTHREAD_SCOPE_PROCESS
       PTHREAD_SCOPE_SYSTEM

       The types listed below are defined as described in <sys/types.h>. See types.h(3HEAD).

       pthread_attr_t
       pthread_barrier_t
       pthread_barrierattr_t
       pthread_cond_t
       pthread_condattr_t
       pthread_key_t
       pthread_mutex_t
       pthread_mutexattr_t
       pthread_once_t
       pthread_rwlock_t
       pthread_rwlockattr_t
       pthread_spinlock_t
       pthread_t

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       sched.h(3HEAD),	  time.h(3HEAD),    types.h(3HEAD),   pthread_attr_getguardsize(3C),   pthread_attr_init(3C),	pthread_attr_setscope(3C),
       pthread_cancel(3C),   pthread_cleanup_pop(3C),	pthread_cond_init(3C),	 pthread_cond_signal(3C),   pthread_cond_wait(3C),    pthread_con-
       dattr_init(3C),	pthread_create(3C), pthread_detach(3C), pthread_equal(3C), pthread_exit(3C), pthread_getconcurrency(3C), pthread_getsched-
       param(3C),    pthread_join(3C),	  pthread_key_create(3C),    pthread_key_delete(3C),	pthread_mutex_init(3C),    pthread_mutex_lock(3C),
       pthread_mutex_setprioceiling(3C),   pthread_mutexattr_init(3C),	 pthread_mutexattr_init(3C),   pthread_mutexattr_init(3C),  pthread_mutex-
       attr_gettype(3C),     pthread_mutexattr_getprotocol(3C),     pthread_once(3C),	  pthread_rwlock_init(3C),	pthread_rwlock_rdlock(3C),
       pthread_rwlock_unlock(3C),  pthread_rwlock_wrlock(3C),  pthread_rwlockattr_getpshared(3C),  pthread_rwlockattr_init(3C),  pthread_self(3C),
       pthread_setcancelstate(3C), pthread_setspecific(3C), attributes(5), standards(5)

SunOS 5.10							    9 Sep 2004							  pthread.h(3HEAD)