diff options
Diffstat (limited to 'src/libmdsserver/macros.h')
| -rw-r--r-- | src/libmdsserver/macros.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/src/libmdsserver/macros.h b/src/libmdsserver/macros.h index 1623950..95f705f 100644 --- a/src/libmdsserver/macros.h +++ b/src/libmdsserver/macros.h @@ -77,6 +77,21 @@ instructions \ errno = pthread_mutex_unlock(&(mutex)) +/** + * Wrapper for `pthread_mutex_lock` and `pthread_mutex_unlock` with an embedded if-statement + * + * @param mutex:pthread_mutex_t The mutex + * @parma condition The condition to test + * @param instructions The instructions to run while the mutex is locked + */ +#define with_mutex_if(mutex, condition, instructions) \ + errno = pthread_mutex_lock(&(mutex)); \ + if (condition) \ + { \ + instructions \ + } \ + errno = pthread_mutex_unlock(&(mutex)) + /** * Return the maximum value of two values @@ -296,6 +311,18 @@ /** + * `remalloc` wrapper that returns whether the allocation was not successful + * + * @param var The variable to which to assign the reallocation + * @param elements The number of elements to allocate + * @param type The data type of the elements for which to create an allocation + * @return :int Evaluates to true if an only if the allocation failed + */ +#define xrealloc(var, elements, type) \ + ((var = realloc(var, (elements) * sizeof(type))) == NULL) + + +/** * Go to the label `pfail` if a condition is met * * @param CONDITION The condition |