Initialize a condition variable
#include <pthread.h> pthread_cond_t cond = PTHREAD_COND_INITIALIZER; int pthread_cond_init( pthread_cond_t *cond, const pthread_condattr_t *attr );
Use the -l c option to qcc to link against this library. This library is usually included automatically.
The pthread_cond_init() function initializes the condition variable cond with the attributes in the condition variable attribute object attr. If attr is NULL, cond is initialized with the default values for the attributes.
|You should allocate synchronization objects only in normal memory mappings. On certain processors (e.g. some PPC ones), atomic operations such as calls to pthread_mutex_lock() will cause a fault if the control structure is allocated in uncached memory.|
If the condition variable is statically allocated, you can initialize it with the default attribute values by assigning to it the macro PTHREAD_COND_INITIALIZER.
Condition variables have at least the following attributes defined:
For more information about these attributes, see pthread_condattr_getpshared() and pthread_condattr_setpshared().
POSIX 1003.1 THR