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-rw-r--r--src/pulsecore/cli-command.c20
-rw-r--r--src/pulsecore/memblock.c67
-rw-r--r--src/pulsecore/memblock.h32
-rw-r--r--src/pulsecore/protocol-native.c8
-rw-r--r--src/tests/memblock-test.c20
5 files changed, 76 insertions, 71 deletions
diff --git a/src/pulsecore/cli-command.c b/src/pulsecore/cli-command.c
index 8ea9262b..ae475c3a 100644
--- a/src/pulsecore/cli-command.c
+++ b/src/pulsecore/cli-command.c
@@ -259,20 +259,20 @@ static int pa_cli_command_stat(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, PA_G
stat = pa_mempool_get_stat(c->mempool);
pa_strbuf_printf(buf, "Memory blocks currently allocated: %u, size: %s.\n",
- stat->n_allocated,
- pa_bytes_snprint(s, sizeof(s), stat->allocated_size));
+ (unsigned) AO_load_acquire_read((AO_t*) &stat->n_allocated),
+ pa_bytes_snprint(s, sizeof(s), (size_t) AO_load_acquire_read((AO_t*) &stat->allocated_size)));
pa_strbuf_printf(buf, "Memory blocks allocated during the whole lifetime: %u, size: %s.\n",
- stat->n_accumulated,
- pa_bytes_snprint(s, sizeof(s), stat->accumulated_size));
+ (unsigned) AO_load_acquire_read((AO_t*) &stat->n_accumulated),
+ pa_bytes_snprint(s, sizeof(s), (size_t) AO_load_acquire_read((AO_t*) &stat->accumulated_size)));
pa_strbuf_printf(buf, "Memory blocks imported from other processes: %u, size: %s.\n",
- stat->n_imported,
- pa_bytes_snprint(s, sizeof(s), stat->imported_size));
+ (unsigned) AO_load_acquire_read((AO_t*) &stat->n_imported),
+ pa_bytes_snprint(s, sizeof(s), (size_t) AO_load_acquire_read((AO_t*) &stat->imported_size)));
pa_strbuf_printf(buf, "Memory blocks exported to other processes: %u, size: %s.\n",
- stat->n_exported,
- pa_bytes_snprint(s, sizeof(s), stat->exported_size));
+ (unsigned) AO_load_acquire_read((AO_t*) &stat->n_exported),
+ pa_bytes_snprint(s, sizeof(s), (size_t) AO_load_acquire_read((AO_t*) &stat->exported_size)));
pa_strbuf_printf(buf, "Total sample cache size: %s.\n",
pa_bytes_snprint(s, sizeof(s), pa_scache_total_size(c)));
@@ -289,8 +289,8 @@ static int pa_cli_command_stat(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, PA_G
pa_strbuf_printf(buf,
"Memory blocks of type %s: %u allocated/%u accumulated.\n",
type_table[k],
- stat->n_allocated_by_type[k],
- stat->n_accumulated_by_type[k]);
+ (unsigned) AO_load_acquire_read(&stat->n_allocated_by_type[k]),
+ (unsigned) AO_load_acquire_read(&stat->n_accumulated_by_type[k]));
return 0;
}
diff --git a/src/pulsecore/memblock.c b/src/pulsecore/memblock.c
index 516ade13..70bcf677 100644
--- a/src/pulsecore/memblock.c
+++ b/src/pulsecore/memblock.c
@@ -112,39 +112,40 @@ static void stat_add(pa_memblock*b) {
assert(b);
assert(b->pool);
- b->pool->stat.n_allocated ++;
- b->pool->stat.n_accumulated ++;
- b->pool->stat.allocated_size += b->length;
- b->pool->stat.accumulated_size += b->length;
+ AO_fetch_and_add1_release_write(&b->pool->stat.n_allocated);
+ AO_fetch_and_add_release_write(&b->pool->stat.allocated_size, (AO_t) b->length);
+
+ AO_fetch_and_add1_release_write(&b->pool->stat.n_accumulated);
+ AO_fetch_and_add_release_write(&b->pool->stat.accumulated_size, (AO_t) b->length);
if (b->type == PA_MEMBLOCK_IMPORTED) {
- b->pool->stat.n_imported++;
- b->pool->stat.imported_size += b->length;
+ AO_fetch_and_add1_release_write(&b->pool->stat.n_imported);
+ AO_fetch_and_add_release_write(&b->pool->stat.imported_size, (AO_t) b->length);
}
- b->pool->stat.n_allocated_by_type[b->type]++;
- b->pool->stat.n_accumulated_by_type[b->type]++;
+ AO_fetch_and_add1_release_write(&b->pool->stat.n_allocated_by_type[b->type]);
+ AO_fetch_and_add1_release_write(&b->pool->stat.n_accumulated_by_type[b->type]);
}
static void stat_remove(pa_memblock *b) {
assert(b);
assert(b->pool);
- assert(b->pool->stat.n_allocated > 0);
- assert(b->pool->stat.allocated_size >= b->length);
+ assert(AO_load_acquire_read(&b->pool->stat.n_allocated) > 0);
+ assert(AO_load_acquire_read(&b->pool->stat.allocated_size) >= (AO_t) b->length);
- b->pool->stat.n_allocated --;
- b->pool->stat.allocated_size -= b->length;
+ AO_fetch_and_sub1_release_write(&b->pool->stat.n_allocated);
+ AO_fetch_and_add_release_write(&b->pool->stat.allocated_size, (AO_t) (-b->length));
if (b->type == PA_MEMBLOCK_IMPORTED) {
- assert(b->pool->stat.n_imported > 0);
- assert(b->pool->stat.imported_size >= b->length);
+ assert(AO_load_acquire_read(&b->pool->stat.n_imported) > 0);
+ assert(AO_load_acquire_read(&b->pool->stat.imported_size) >= (AO_t) b->length);
- b->pool->stat.n_imported --;
- b->pool->stat.imported_size -= b->length;
+ AO_fetch_and_sub1_release_write(&b->pool->stat.n_imported);
+ AO_fetch_and_add_release_write(&b->pool->stat.imported_size, (AO_t) (-b->length));
}
- b->pool->stat.n_allocated_by_type[b->type]--;
+ AO_fetch_and_sub1_release_write(&b->pool->stat.n_allocated_by_type[b->type]);
}
static pa_memblock *memblock_new_appended(pa_mempool *p, size_t length);
@@ -190,7 +191,7 @@ static struct mempool_slot* mempool_allocate_slot(pa_mempool *p) {
slot = (struct mempool_slot*) ((uint8_t*) p->memory.ptr + (p->block_size * p->n_init++));
else {
pa_log_debug("Pool full");
- p->stat.n_pool_full++;
+ AO_fetch_and_add1_release_write(&p->stat.n_pool_full);
return NULL;
}
@@ -247,7 +248,7 @@ pa_memblock *pa_memblock_new_pool(pa_mempool *p, size_t length) {
b->data = mempool_slot_data(slot);
} else {
pa_log_debug("Memory block too large for pool: %u > %u", length, p->block_size - sizeof(struct mempool_slot));
- p->stat.n_too_large_for_pool++;
+ AO_fetch_and_add1_release_write(&p->stat.n_too_large_for_pool);
return NULL;
}
@@ -371,7 +372,7 @@ void pa_memblock_unref(pa_memblock*b) {
static void memblock_make_local(pa_memblock *b) {
assert(b);
- b->pool->stat.n_allocated_by_type[b->type]--;
+ AO_fetch_and_sub1_release_write(&b->pool->stat.n_allocated_by_type[b->type]);
if (b->length <= b->pool->block_size - sizeof(struct mempool_slot)) {
struct mempool_slot *slot;
@@ -397,8 +398,8 @@ static void memblock_make_local(pa_memblock *b) {
b->data = pa_xmemdup(b->data, b->length);
finish:
- b->pool->stat.n_allocated_by_type[b->type]++;
- b->pool->stat.n_accumulated_by_type[b->type]++;
+ AO_fetch_and_add1_release_write(&b->pool->stat.n_allocated_by_type[b->type]);
+ AO_fetch_and_add1_release_write(&b->pool->stat.n_accumulated_by_type[b->type]);
}
void pa_memblock_unref_fixed(pa_memblock *b) {
@@ -418,10 +419,10 @@ static void memblock_replace_import(pa_memblock *b) {
assert(b);
assert(b->type == PA_MEMBLOCK_IMPORTED);
- assert(b->pool->stat.n_imported > 0);
- assert(b->pool->stat.imported_size >= b->length);
- b->pool->stat.n_imported --;
- b->pool->stat.imported_size -= b->length;
+ assert(AO_load_acquire_read(&b->pool->stat.n_imported) > 0);
+ assert(AO_load_acquire_read(&b->pool->stat.imported_size) >= (AO_t) b->length);
+ AO_fetch_and_sub1_release_write(&b->pool->stat.n_imported);
+ AO_fetch_and_add_release_write(&b->pool->stat.imported_size, (AO_t) - b->length);
seg = b->per_type.imported.segment;
assert(seg);
@@ -486,7 +487,7 @@ void pa_mempool_free(pa_mempool *p) {
while (p->exports)
pa_memexport_free(p->exports);
- if (p->stat.n_allocated > 0)
+ if (AO_load_acquire_read(&p->stat.n_allocated) > 0)
pa_log_warn("WARNING! Memory pool destroyed but not all memory blocks freed!");
pa_shm_free(&p->memory);
@@ -685,11 +686,11 @@ int pa_memexport_process_release(pa_memexport *e, uint32_t id) {
/* pa_log("Processing release for %u", id); */
- assert(e->pool->stat.n_exported > 0);
- assert(e->pool->stat.exported_size >= e->slots[id].block->length);
+ assert(AO_load_acquire_read(&e->pool->stat.n_exported) > 0);
+ assert(AO_load_acquire_read(&e->pool->stat.exported_size) >= (AO_t) e->slots[id].block->length);
- e->pool->stat.n_exported --;
- e->pool->stat.exported_size -= e->slots[id].block->length;
+ AO_fetch_and_sub1_release_write(&e->pool->stat.n_exported);
+ AO_fetch_and_add_release_write(&e->pool->stat.exported_size, (AO_t) -e->slots[id].block->length);
pa_memblock_unref(e->slots[id].block);
e->slots[id].block = NULL;
@@ -786,8 +787,8 @@ int pa_memexport_put(pa_memexport *e, pa_memblock *b, uint32_t *block_id, uint32
*offset = (uint8_t*) b->data - (uint8_t*) memory->ptr;
*size = b->length;
- e->pool->stat.n_exported ++;
- e->pool->stat.exported_size += b->length;
+ AO_fetch_and_add1_release_write(&e->pool->stat.n_exported);
+ AO_fetch_and_add_release_write(&e->pool->stat.exported_size, (AO_t) b->length);
return 0;
}
diff --git a/src/pulsecore/memblock.h b/src/pulsecore/memblock.h
index 60a0c900..d4f2b7aa 100644
--- a/src/pulsecore/memblock.h
+++ b/src/pulsecore/memblock.h
@@ -74,21 +74,25 @@ struct pa_memblock {
} per_type;
};
+/* Please note that updates to this structure are not locked,
+ * i.e. n_allocated might be updated at a point in time where
+ * n_accumulated is not yet. Take these values with a grain of salt,
+ * threy are here for purely statistical reasons.*/
struct pa_mempool_stat {
- unsigned n_allocated;
- unsigned n_accumulated;
- unsigned n_imported;
- unsigned n_exported;
- size_t allocated_size;
- size_t accumulated_size;
- size_t imported_size;
- size_t exported_size;
-
- unsigned n_too_large_for_pool;
- unsigned n_pool_full;
-
- unsigned n_allocated_by_type[PA_MEMBLOCK_TYPE_MAX];
- unsigned n_accumulated_by_type[PA_MEMBLOCK_TYPE_MAX];
+ AO_t n_allocated;
+ AO_t n_accumulated;
+ AO_t n_imported;
+ AO_t n_exported;
+ AO_t allocated_size;
+ AO_t accumulated_size;
+ AO_t imported_size;
+ AO_t exported_size;
+
+ AO_t n_too_large_for_pool;
+ AO_t n_pool_full;
+
+ AO_t n_allocated_by_type[PA_MEMBLOCK_TYPE_MAX];
+ AO_t n_accumulated_by_type[PA_MEMBLOCK_TYPE_MAX];
};
/* Allocate a new memory block of type PA_MEMBLOCK_MEMPOOL or PA_MEMBLOCK_APPENDED, depending on the size */
diff --git a/src/pulsecore/protocol-native.c b/src/pulsecore/protocol-native.c
index 0f015071..38c024b7 100644
--- a/src/pulsecore/protocol-native.c
+++ b/src/pulsecore/protocol-native.c
@@ -1112,10 +1112,10 @@ static void command_stat(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t
stat = pa_mempool_get_stat(c->protocol->core->mempool);
reply = reply_new(tag);
- pa_tagstruct_putu32(reply, stat->n_allocated);
- pa_tagstruct_putu32(reply, stat->allocated_size);
- pa_tagstruct_putu32(reply, stat->n_accumulated);
- pa_tagstruct_putu32(reply, stat->accumulated_size);
+ pa_tagstruct_putu32(reply, (uint32_t) AO_load_acquire_read((AO_t*) &stat->n_allocated));
+ pa_tagstruct_putu32(reply, (uint32_t) AO_load_acquire_read((AO_t*) &stat->allocated_size));
+ pa_tagstruct_putu32(reply, (uint32_t) AO_load_acquire_read((AO_t*) &stat->n_accumulated));
+ pa_tagstruct_putu32(reply, (uint32_t) AO_load_acquire_read((AO_t*) &stat->accumulated_size));
pa_tagstruct_putu32(reply, pa_scache_total_size(c->protocol->core));
pa_pstream_send_tagstruct(c->pstream, reply);
}
diff --git a/src/tests/memblock-test.c b/src/tests/memblock-test.c
index 11198ae6..ef2e0ad7 100644
--- a/src/tests/memblock-test.c
+++ b/src/tests/memblock-test.c
@@ -54,16 +54,16 @@ static void print_stats(pa_mempool *p, const char *text) {
"n_pool_full = %u\n"
"}\n",
text,
- s->n_allocated,
- s->n_accumulated,
- s->n_imported,
- s->n_exported,
- (unsigned long) s->allocated_size,
- (unsigned long) s->accumulated_size,
- (unsigned long) s->imported_size,
- (unsigned long) s->exported_size,
- s->n_too_large_for_pool,
- s->n_pool_full);
+ (unsigned) AO_load_acquire_read((AO_t*) &s->n_allocated),
+ (unsigned) AO_load_acquire_read((AO_t*) &s->n_accumulated),
+ (unsigned) AO_load_acquire_read((AO_t*) &s->n_imported),
+ (unsigned) AO_load_acquire_read((AO_t*) &s->n_exported),
+ (unsigned long) AO_load_acquire_read((AO_t*) &s->allocated_size),
+ (unsigned long) AO_load_acquire_read((AO_t*) &s->accumulated_size),
+ (unsigned long) AO_load_acquire_read((AO_t*) &s->imported_size),
+ (unsigned long) AO_load_acquire_read((AO_t*) &s->exported_size),
+ (unsigned) AO_load_acquire_read((AO_t*) &s->n_too_large_for_pool),
+ (unsigned) AO_load_acquire_read((AO_t*) &s->n_pool_full));
}
int main(int argc, char *argv[]) {
generated by cgit (git 2.34.1) at 2024-11-12 10:36:58 +0000