return pool_elt_at_index (sm->segments, segment_index);
}
+void
+segment_manager_segment_reader_lock (segment_manager_t * sm)
+{
+ clib_rwlock_reader_lock (&sm->segments_rwlock);
+}
+
void
segment_manager_segment_reader_unlock (segment_manager_t * sm)
{
return pool_elt_at_index (sm_main.segment_managers, index);
}
-static fifo_segment_t *
-find_max_free_segment (segment_manager_t * sm, u32 thread_index)
-{
- fifo_segment_t *cur, *fs = 0;
- uword free_bytes, max_free_bytes = 0;
-
- clib_rwlock_reader_lock (&sm->segments_rwlock);
- /* *INDENT-OFF* */
- pool_foreach (cur, sm->segments, ({
- if ((free_bytes = fifo_segment_free_bytes (cur)) > max_free_bytes)
- {
- max_free_bytes = free_bytes;
- fs = cur;
- }
- }));
- /* *INDENT-ON* */
- clib_rwlock_reader_unlock (&sm->segments_rwlock);
-
- return fs;
-}
-
u32
segment_manager_index (segment_manager_t * sm)
{
svm_fifo_t ** tx_fifo)
{
int alloc_fail = 1, rv = 0, new_fs_index;
+ uword free_bytes, max_free_bytes = 0;
segment_manager_props_t *props;
- fifo_segment_t *fs = 0;
+ fifo_segment_t *fs = 0, *cur;
u32 sm_index, fs_index;
u8 added_a_segment = 0;
u64 fs_handle;
/*
* Find the first free segment to allocate the fifos in
*/
- fs = find_max_free_segment (sm, thread_index);
+
+ segment_manager_segment_reader_lock (sm);
+
+ /* *INDENT-OFF* */
+ pool_foreach (cur, sm->segments, ({
+ free_bytes = fifo_segment_available_bytes (cur);
+ if (free_bytes > max_free_bytes)
+ {
+ max_free_bytes = free_bytes;
+ fs = cur;
+ }
+ }));
+ /* *INDENT-ON* */
if (fs)
{
- clib_rwlock_reader_lock (&sm->segments_rwlock);
alloc_fail = segment_manager_try_alloc_fifos (fs, thread_index,
props->rx_fifo_size,
props->tx_fifo_size,
/* On success, keep lock until fifos are initialized */
if (!alloc_fail)
goto alloc_success;
-
- segment_manager_segment_reader_unlock (sm);
- }
- else
- {
- alloc_fail = 1;
}
+ segment_manager_segment_reader_unlock (sm);
+
alloc_check:
if (!alloc_fail)