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tis_cond_destroy(3) [osf1 man page]

tis_cond_destroy(3)					     Library Functions Manual					       tis_cond_destroy(3)

NAME
tis_cond_destroy - Destroys the specified condition variable. LIBRARY
Standard C Library (libc.so, libc.a) SYNOPSIS
#include <tis.h> int tis_cond_destroy( pthread_cond_t *cond); STANDARDS
None PARAMETERS
Address of the condition variable (passed by reference) to be destroyed. DESCRIPTION
This routine destroys the condition variable specified by cond. After this routine is called, DECthreads may reclaim internal storage used by the condition variable object. Call this routine when a condition variable will no longer be referenced. The results of this routine are unpredictable if the condition variable specified in cond does not exist or is not initialized. For more information about actions when threads are present, refer to the pthread_cond_destroy(3) description. RETURN VALUES
If an error condition occurs, this routine returns an integer value indicating the type of error. Possible return values are as follows: Successful completion. The object being referenced by cond is being referenced by another thread that is currently executing tis_cond_wait(3) on the condition variable specified in cond. (This error can only occur when threads are present.) The value specified by cond is not a valid condition variable. ERRORS
None RELATED INFORMATION
Functions: tis_cond_broadcast(3), tis_cond_init(3), tis_cond_signal(3), tis_cond_wait(3) Manuals: Guide to DECthreads and Programmer's Guide delim off tis_cond_destroy(3)

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tis_cond_init(3)					     Library Functions Manual						  tis_cond_init(3)

NAME
tis_cond_init - Initializes a condition variable. LIBRARY
Standard C Library (libc.so, libc.a) SYNOPSIS
#include <tis.h> int tis_cond_init( pthread_cond_t *cond); STANDARDS
None PARAMETERS
Address of the condition variable (passed by reference) to be initialized. DESCRIPTION
This routine initializes a condition variable (cond) with the DECthreads default condition variable attributes. A condition variable is a synchronization object used in conjunction with a mutex. A mutex controls access to shared data. When threads are present, a condition variable allows threads to wait for data to enter a defined state. For more information about actions taken when threads are present, refer to the pthread_cond_init(3) description. Your program can use the macro PTHREAD_COND_INITIALIZER to initialize statically allocated condition variables to the DECthreads default condition variable attributes. Static initialization can be used only for a condition variable with storage class extern or static - auto- matic (stack local) objects must be initialized by calling tis_cond_destroy(3). Use this macro as follows: pthread_cond_t condition = PTHREAD_COND_INITIALIZER When statically initialized, a condition variable should not also be initialized using tis_cond_init(3). RETURN VALUES
If an error condition occurs, the following occurs: The routine returns an integer value indicating the type of error. The condition vari- able is not initialized. The contents of condition variable cond are undefined. The possible return values are as follows: Successful completion. The system lacks the necessary resources to initialize another condition variable, or The system-imposed limit on the total number of condition variables under execution by a single user is exceeded. The imple- mentation has detected an attempt to reinitialize the object referenced by cond, a previously initialized, but not yet destroyed condition variable. The value specified by attr is not a valid condition variable. Insufficient memory exists to initialize the condition variable. ERRORS
None RELATED INFORMATION
Functions: tis_cond_broadcast(3), tis_cond_destroy(3), tis_cond_signal(3), tis_cond_wait(3) Manuals: Guide to DECthreads and Programmer's Guide delim off tis_cond_init(3)
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