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-rw-r--r--runtime/ChangeLog6
-rw-r--r--runtime/alloc.c4
-rw-r--r--runtime/map.c32
-rw-r--r--runtime/pmap-gen.c87
4 files changed, 71 insertions, 58 deletions
diff --git a/runtime/ChangeLog b/runtime/ChangeLog
index 1b271846..dff894b4 100644
--- a/runtime/ChangeLog
+++ b/runtime/ChangeLog
@@ -1,5 +1,9 @@
2005-11-10 Martin Hunt <hunt@redhat.com>
-
+ * map.c: Doc updates.
+ * pmap-gen.c: Change a bunch of generated function names to
+ avoid conflicts with maps with the same key and value types.
+
+2005-11-10 Martin Hunt <hunt@redhat.com>
* map.c (_stp_cmp): Use _stp_div64().
2005-11-09 Martin Hunt <hunt@redhat.com>
diff --git a/runtime/alloc.c b/runtime/alloc.c
index 8f34dea3..b647a532 100644
--- a/runtime/alloc.c
+++ b/runtime/alloc.c
@@ -115,7 +115,7 @@ void *_stp_valloc_cpu(size_t len, int cpu)
struct _stp_percpu_data {
void *ptrs[NR_CPUS];
- void *blkp;
+ void *data;
};
#ifdef CONFIG_SMP
@@ -187,7 +187,7 @@ void _stp_vfree_percpu(const void *ptr)
#define _stp_valloc_percpu(type) \
((type *)(__stp_valloc_percpu(sizeof(type), __alignof__(type))))
-#define _stp_percpu_dptr(ptr) (((struct _stp_percpu_data *)~(unsigned long)(ptr))->blkp)
+#define _stp_percpu_dptr(ptr) (((struct _stp_percpu_data *)~(unsigned long)(ptr))->data)
/** Frees memory allocated by _stp_alloc or _stp_calloc.
* @param ptr pointer to memory to free
diff --git a/runtime/map.c b/runtime/map.c
index 76f8b87b..f962bfe5 100644
--- a/runtime/map.c
+++ b/runtime/map.c
@@ -795,7 +795,16 @@ static void _stp_add_agg(struct map_node *aptr, struct map_node *ptr)
}
}
-void _stp_pmap_agg (MAP map)
+/** Aggregate per-cpu maps.
+ * This function aggregates the per-cpu maps into an aggregated
+ * map. A pointer to that aggregated map is returned.
+ *
+ * A write lock must be held on the map during this function.
+ *
+ * @param map A pointer to a pmap.
+ * @returns a pointer to an aggregated map.
+ */
+MAP _stp_pmap_agg (MAP map)
{
int i, hash;
MAP m, agg;
@@ -810,7 +819,6 @@ void _stp_pmap_agg (MAP map)
_stp_map_clear (agg);
for_each_cpu(i) {
- dbug("cpu %d\n", i);
m = per_cpu_ptr (map, i);
/* walk the hash chains. */
for (hash = 0; hash < HASH_TABLE_SIZE; hash++) {
@@ -833,18 +841,20 @@ void _stp_pmap_agg (MAP map)
}
}
}
+ return agg;
}
-#define AGG_PMAP(map) (_stp_percpu_dptr(map))
-
-void _stp_pmap_printn(MAP map, int n, const char *fmt)
-{
- MAP m = _stp_percpu_dptr(map);
- _stp_pmap_agg(map);
- _stp_map_printn (m, n, fmt);
-}
-#define _stp_pmap_print(map,fmt) _stp_pmap_printn(map,0,fmt)
+/** Get the aggregation map for a pmap.
+ * This function returns a pointer to the aggregation map.
+ * It does not do any aggregation.
+ * @param map A pointer to a pmap.
+ * @returns a pointer to an aggregated map.
+ * @sa _stp_pmap_agg()
+ */
+#define _stp_pmap_get_agg(map) (_stp_percpu_dptr(map))
+#define _stp_pmap_printn(map,n,fmt) _stp_map_printn (_stp_pmap_agg(map), n, fmt)
+#define _stp_pmap_print(map,fmt) _stp_map_printn(_stp_pmap_agg(map),0,fmt)
static void _new_map_clear_node (struct map_node *m)
{
diff --git a/runtime/pmap-gen.c b/runtime/pmap-gen.c
index cb203a88..0d05fedc 100644
--- a/runtime/pmap-gen.c
+++ b/runtime/pmap-gen.c
@@ -1,5 +1,5 @@
/* -*- linux-c -*-
- * map API generator
+ * pmap API generator
* Copyright (C) 2005 Red Hat Inc.
*
* This file is part of systemtap, and is free software. You can
@@ -8,10 +8,10 @@
* later version.
*/
-/** @file map-gen.c
- * @brief Map function generator
+/** @file pmap-gen.c
+ * @brief Pmap function generator
* This file is a template designed to be included as many times as
- * needed to generate the necessary map functions.
+ * needed to generate the necessary pmap functions.
*/
#define JOIN(x,y) JOINx(x,y)
@@ -191,7 +191,7 @@
/* */
-struct KEYSYM(map_node) {
+struct KEYSYM(pmap_node) {
/* list of other nodes in the map */
struct list_head lnode;
/* list of nodes with the same hash value */
@@ -225,10 +225,10 @@ struct KEYSYM(map_node) {
})
/* returns 1 on match, 0 otherwise */
-static int KEYSYM(map_key_cmp) (struct map_node *m1, struct map_node *m2)
+static int KEYSYM(pmap_key_cmp) (struct map_node *m1, struct map_node *m2)
{
- struct KEYSYM(map_node) *n1 = (struct KEYSYM(map_node) *)m1;
- struct KEYSYM(map_node) *n2 = (struct KEYSYM(map_node) *)m2;
+ struct KEYSYM(pmap_node) *n1 = (struct KEYSYM(pmap_node) *)m1;
+ struct KEYSYM(pmap_node) *n2 = (struct KEYSYM(pmap_node) *)m2;
if (KEY1_EQ_P(n1->key1, n2->key1)
#if KEY_ARITY > 1
&& KEY2_EQ_P(n1->key2, n2->key2)
@@ -249,11 +249,10 @@ static int KEYSYM(map_key_cmp) (struct map_node *m1, struct map_node *m2)
}
/* copy keys for m2 -> m1 */
-static void KEYSYM(map_copy_keys) (struct map_node *m1, struct map_node *m2)
+static void KEYSYM(pmap_copy_keys) (struct map_node *m1, struct map_node *m2)
{
- struct KEYSYM(map_node) *dst = (struct KEYSYM(map_node) *)m1;
- struct KEYSYM(map_node) *src = (struct KEYSYM(map_node) *)m2;
- dbug("copy\n");
+ struct KEYSYM(pmap_node) *dst = (struct KEYSYM(pmap_node) *)m1;
+ struct KEYSYM(pmap_node) *src = (struct KEYSYM(pmap_node) *)m2;
#if KEY1_TYPE == STRING
str_copy (dst->key1, src->key1);
#else
@@ -289,10 +288,10 @@ static void KEYSYM(map_copy_keys) (struct map_node *m1, struct map_node *m2)
#endif
}
-static key_data KEYSYM(map_get_key) (struct map_node *mn, int n, int *type)
+static key_data KEYSYM(pmap_get_key) (struct map_node *mn, int n, int *type)
{
key_data ptr;
- struct KEYSYM(map_node) *m = (struct KEYSYM(map_node) *)mn;
+ struct KEYSYM(pmap_node) *m = (struct KEYSYM(pmap_node) *)mn;
if (n > KEY_ARITY || n < 1) {
if (type)
@@ -344,7 +343,7 @@ static key_data KEYSYM(map_get_key) (struct map_node *mn, int n, int *type)
}
-static unsigned int KEYSYM(keycheck) (ALLKEYSD(key))
+static unsigned int KEYSYM(pkeycheck) (ALLKEYSD(key))
{
#if KEY1_TYPE == STRING
if (key1 == NULL)
@@ -381,7 +380,7 @@ static unsigned int KEYSYM(keycheck) (ALLKEYSD(key))
return 1;
}
-static unsigned int KEYSYM(hash) (ALLKEYSD(key))
+static unsigned int KEYSYM(phash) (ALLKEYSD(key))
{
unsigned int hash = KEY1_HASH(key1);
#if KEY_ARITY > 1
@@ -403,20 +402,20 @@ static unsigned int KEYSYM(hash) (ALLKEYSD(key))
#if VALUE_TYPE == INT64 || VALUE_TYPE == STRING
MAP KEYSYM(_stp_pmap_new) (unsigned max_entries)
{
- MAP map = _stp_pmap_new (max_entries, VALUE_TYPE, sizeof(struct KEYSYM(map_node)), 0);
+ MAP map = _stp_pmap_new (max_entries, VALUE_TYPE, sizeof(struct KEYSYM(pmap_node)), 0);
if (map) {
int i;
MAP m;
for_each_cpu(i) {
m = per_cpu_ptr (map, i);
- m->get_key = KEYSYM(map_get_key);
- m->copy = KEYSYM(map_copy_keys);
- m->cmp = KEYSYM(map_key_cmp);
+ m->get_key = KEYSYM(pmap_get_key);
+ m->copy = KEYSYM(pmap_copy_keys);
+ m->cmp = KEYSYM(pmap_key_cmp);
}
m = _stp_percpu_dptr(map);
- m->get_key = KEYSYM(map_get_key);
- m->copy = KEYSYM(map_copy_keys);
- m->cmp = KEYSYM(map_key_cmp);
+ m->get_key = KEYSYM(pmap_get_key);
+ m->copy = KEYSYM(pmap_copy_keys);
+ m->cmp = KEYSYM(pmap_key_cmp);
}
return map;
}
@@ -446,14 +445,14 @@ MAP KEYSYM(_stp_pmap_new) (unsigned max_entries, int htype, ...)
switch (htype) {
case HIST_NONE:
- map = _stp_pmap_new (max_entries, STAT, sizeof(struct KEYSYM(map_node)), 0);
+ map = _stp_pmap_new (max_entries, STAT, sizeof(struct KEYSYM(pmap_node)), 0);
break;
case HIST_LOG:
- map = _stp_pmap_new_hstat_log (max_entries, sizeof(struct KEYSYM(map_node)),
+ map = _stp_pmap_new_hstat_log (max_entries, sizeof(struct KEYSYM(pmap_node)),
buckets);
break;
case HIST_LINEAR:
- map = _stp_pmap_new_hstat_linear (max_entries, sizeof(struct KEYSYM(map_node)),
+ map = _stp_pmap_new_hstat_linear (max_entries, sizeof(struct KEYSYM(pmap_node)),
start, stop, interval);
break;
default:
@@ -466,14 +465,14 @@ MAP KEYSYM(_stp_pmap_new) (unsigned max_entries, int htype, ...)
MAP m;
for_each_cpu(i) {
m = per_cpu_ptr (map, i);
- m->get_key = KEYSYM(map_get_key);
- m->copy = KEYSYM(map_copy_keys);
- m->cmp = KEYSYM(map_key_cmp);
+ m->get_key = KEYSYM(pmap_get_key);
+ m->copy = KEYSYM(pmap_copy_keys);
+ m->cmp = KEYSYM(pmap_key_cmp);
}
m = _stp_percpu_dptr(map);
- m->get_key = KEYSYM(map_get_key);
- m->copy = KEYSYM(map_copy_keys);
- m->cmp = KEYSYM(map_key_cmp);
+ m->get_key = KEYSYM(pmap_get_key);
+ m->copy = KEYSYM(pmap_copy_keys);
+ m->cmp = KEYSYM(pmap_key_cmp);
}
return map;
}
@@ -484,19 +483,19 @@ int KEYSYM(__stp_pmap_set) (MAP map, ALLKEYSD(key), VSTYPE val, int add)
unsigned int hv;
struct hlist_head *head;
struct hlist_node *e;
- struct KEYSYM(map_node) *n;
+ struct KEYSYM(pmap_node) *n;
if (map == NULL)
return -2;
- if (KEYSYM(keycheck) (ALLKEYS(key)) == 0)
+ if (KEYSYM(pkeycheck) (ALLKEYS(key)) == 0)
return -2;
- hv = KEYSYM(hash) (ALLKEYS(key));
+ hv = KEYSYM(phash) (ALLKEYS(key));
head = &map->hashes[hv];
hlist_for_each(e, head) {
- n = (struct KEYSYM(map_node) *)((long)e - sizeof(struct list_head));
+ n = (struct KEYSYM(pmap_node) *)((long)e - sizeof(struct list_head));
dbug("map_node =%lx\n", (long)n);
if (KEY1_EQ_P(n->key1, key1)
#if KEY_ARITY > 1
@@ -526,7 +525,7 @@ int KEYSYM(__stp_pmap_set) (MAP map, ALLKEYSD(key), VSTYPE val, int add)
if VAL_IS_ZERO(val,add)
return 0;
- n = (struct KEYSYM(map_node)*)_new_map_create (map, head);
+ n = (struct KEYSYM(pmap_node)*)_new_map_create (map, head);
if (n == NULL)
return -1;
KEYCPY(n);
@@ -555,7 +554,7 @@ VALTYPE KEYSYM(_stp_pmap_get_cpu) (MAP pmap, ALLKEYSD(key))
unsigned int hv;
struct hlist_head *head;
struct hlist_node *e;
- struct KEYSYM(map_node) *n;
+ struct KEYSYM(pmap_node) *n;
VALTYPE res;
MAP map;
@@ -564,11 +563,11 @@ VALTYPE KEYSYM(_stp_pmap_get_cpu) (MAP pmap, ALLKEYSD(key))
map = per_cpu_ptr (pmap, get_cpu());
- hv = KEYSYM(hash) (ALLKEYS(key));
+ hv = KEYSYM(phash) (ALLKEYS(key));
head = &map->hashes[hv];
hlist_for_each(e, head) {
- n = (struct KEYSYM(map_node) *)((long)e - sizeof(struct list_head));
+ n = (struct KEYSYM(pmap_node) *)((long)e - sizeof(struct list_head));
dbug("map_node =%lx\n", (long)n);
if (KEY1_EQ_P(n->key1, key1)
#if KEY_ARITY > 1
@@ -604,20 +603,20 @@ VALTYPE KEYSYM(_stp_pmap_get) (MAP pmap, ALLKEYSD(key))
unsigned int hv;
struct hlist_head *head;
struct hlist_node *e;
- struct KEYSYM(map_node) *n, *anode = NULL;
+ struct KEYSYM(pmap_node) *n, *anode = NULL;
VALTYPE res;
MAP map, agg;
if (pmap == NULL)
return (VALTYPE)0;
- hv = KEYSYM(hash) (ALLKEYS(key));
+ hv = KEYSYM(phash) (ALLKEYS(key));
/* first look it up in the aggregation map */
agg = _stp_percpu_dptr(pmap);
ahead = &agg->hashes[hv];
hlist_for_each(e, ahead) {
- n = (struct KEYSYM(map_node) *)((long)e - sizeof(struct list_head));
+ n = (struct KEYSYM(pmap_node) *)((long)e - sizeof(struct list_head));
dbug("map_node =%lx\n", (long)n);
if (KEY1_EQ_P(n->key1, key1)
#if KEY_ARITY > 1
@@ -644,7 +643,7 @@ VALTYPE KEYSYM(_stp_pmap_get) (MAP pmap, ALLKEYSD(key))
map = per_cpu_ptr (pmap, get_cpu());
head = &map->hashes[hv];
hlist_for_each(e, head) {
- n = (struct KEYSYM(map_node) *)((long)e - sizeof(struct list_head));
+ n = (struct KEYSYM(pmap_node) *)((long)e - sizeof(struct list_head));
dbug("map_node =%lx\n", (long)n);
if (KEY1_EQ_P(n->key1, key1)
#if KEY_ARITY > 1
generated by cgit (git 2.34.1) at 2025-08-05 03:38:48 +0000