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Variable number of threads for concurrent memory pool

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Patrick Pelissier committed 2019-01-02 21:48:53 +01:00
1 parent af050d0100
commit 38eb1c26c6
2 files changed
+13 -10
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m-c-mempool.h
+11 -9
View File
@@ -29,9 +29,6 @@
#include "m-atomic.h"
#include "m-genint.h"
#define MAX_THREAD 4
/* Minimum number of nodes per group of nodes */
#define C_MEMPOOL_MIN_NODE_PER_GROUP 16
@@ -344,8 +341,9 @@
typedef struct M_C(name, _s) { \
atomic_ulong ticket; \
unsigned initial; \
unsigned max_thread; \
genint_t thread_alloc; \
M_C(name, _lfmp_thread_t) thread_data[MAX_THREAD]; \
M_C(name, _lfmp_thread_t) *thread_data; \
M_C(name, _lflist_t) free; \
M_C(name, _lflist_t) to_be_reclaimed; \
M_C(name, _lflist_t) empty; \
@@ -354,13 +352,17 @@
typedef int M_C(name, _tid_t); \
\
static inline void \
M_C(name, _init)(M_C(name, _t) mem, \
M_C(name, _init)(M_C(name, _t) mem, unsigned long max_thread, \
unsigned init_node_count, unsigned init_group_count) \
{ \
atomic_init(&mem->ticket, 0UL); \
genint_init(mem->thread_alloc, MAX_THREAD); \
genint_init(mem->thread_alloc, max_thread); \
mem->initial = M_MAX(C_MEMPOOL_MIN_NODE_PER_GROUP, init_node_count); \
for(int i = 0; i < MAX_THREAD;i++) { \
mem->thread_data = M_MEMORY_REALLOC(M_C(name, _lfmp_thread_t), NULL, max_thread); \
if (mem->thread_data == NULL) { \
M_MEMORY_FULL(max_thread * sizeof(M_C(name, _lfmp_thread_t))); \
} \
for(unsigned i = 0; i < max_thread;i++) { \
M_C(name, _lfmp_thread_init)(&mem->thread_data[i]); \
} \
M_C(name, _lflist_init)(mem->free, M_C(name, _alloc_node)(init_node_count)); \
@@ -377,7 +379,7 @@
static inline void \
M_C(name, _clear)(M_C(name, _t) mem) \
{ \
for(int i = 0; i < MAX_THREAD;i++) { \
for(unsigned i = 0; i < mem->max_thread;i++) { \
M_C(name, _lfmp_thread_clear)(&mem->thread_data[i]); \
} \
M_C(name, _lflist_clear)(mem->empty); \
@@ -448,7 +450,7 @@
M_C(name, _int_min_ticket)(M_C(name, _t) mem) \
{ \
unsigned long min = atomic_load(&mem->thread_data[0].ticket); \
for(int i = 1; i < MAX_THREAD; i++) { \
for(unsigned i = 1; i < mem->max_thread; i++) { \
unsigned long t = atomic_load(&mem->thread_data[i].ticket); \
min = M_MIN(t, min); \
} \
tests/test-mcmempool.c
+2 -1
View File
@@ -31,6 +31,7 @@ C_MEMPOOL_DEF(lf_mempool, int)
/**********************************************************************/
#define MAX_VALUE 100
#define MAX_THREAD 4
lf_mempool_t g;
@@ -122,7 +123,7 @@ static void thread2(void *arg)
static void test(void)
{
lf_mempool_init(g, 256, MAX_THREAD);
lf_mempool_init(g, MAX_THREAD, 256, MAX_THREAD);
m_thread_t id[MAX_THREAD];
for(int i = 0; i < MAX_THREAD; i+=2) {