static
void lib_ring_buffer_print_errors(struct channel *chan,
- struct lib_ring_buffer *buf, int cpu,
- struct shm_handle *handle);
+ struct lttng_ust_lib_ring_buffer *buf, int cpu,
+ struct lttng_ust_shm_handle *handle);
/*
* Must be called under cpu hotplug protection.
*/
-void lib_ring_buffer_free(struct lib_ring_buffer *buf,
- struct shm_handle *handle)
+void lib_ring_buffer_free(struct lttng_ust_lib_ring_buffer *buf,
+ struct lttng_ust_shm_handle *handle)
{
struct channel *chan = shmp(handle, buf->backend.chan);
* should not be using the iterator concurrently with reset. The previous
* current iterator record is reset.
*/
-void lib_ring_buffer_reset(struct lib_ring_buffer *buf,
- struct shm_handle *handle)
+void lib_ring_buffer_reset(struct lttng_ust_lib_ring_buffer *buf,
+ struct lttng_ust_shm_handle *handle)
{
struct channel *chan = shmp(handle, buf->backend.chan);
- const struct lib_ring_buffer_config *config = &chan->backend.config;
+ const struct lttng_ust_lib_ring_buffer_config *config = &chan->backend.config;
unsigned int i;
/*
/*
* Must be called under cpu hotplug protection.
*/
-int lib_ring_buffer_create(struct lib_ring_buffer *buf,
+int lib_ring_buffer_create(struct lttng_ust_lib_ring_buffer *buf,
struct channel_backend *chanb, int cpu,
- struct shm_handle *handle,
+ struct lttng_ust_shm_handle *handle,
struct shm_object *shmobj)
{
- const struct lib_ring_buffer_config *config = &chanb->config;
+ const struct lttng_ust_lib_ring_buffer_config *config = &chanb->config;
struct channel *chan = caa_container_of(chanb, struct channel, backend);
void *priv = chanb->priv;
unsigned int num_subbuf;
#if 0
static void switch_buffer_timer(unsigned long data)
{
- struct lib_ring_buffer *buf = (struct lib_ring_buffer *)data;
+ struct lttng_ust_lib_ring_buffer *buf = (struct lttng_ust_lib_ring_buffer *)data;
struct channel *chan = shmp(handle, buf->backend.chan);
- const struct lib_ring_buffer_config *config = &chan->backend.config;
+ const struct lttng_ust_lib_ring_buffer_config *config = &chan->backend.config;
/*
* Only flush buffers periodically if readers are active.
}
#endif //0
-static void lib_ring_buffer_start_switch_timer(struct lib_ring_buffer *buf,
- struct shm_handle *handle)
+static void lib_ring_buffer_start_switch_timer(struct lttng_ust_lib_ring_buffer *buf,
+ struct lttng_ust_shm_handle *handle)
{
struct channel *chan = shmp(handle, buf->backend.chan);
- //const struct lib_ring_buffer_config *config = &chan->backend.config;
+ //const struct lttng_ust_lib_ring_buffer_config *config = &chan->backend.config;
if (!chan->switch_timer_interval || buf->switch_timer_enabled)
return;
buf->switch_timer_enabled = 1;
}
-static void lib_ring_buffer_stop_switch_timer(struct lib_ring_buffer *buf,
- struct shm_handle *handle)
+static void lib_ring_buffer_stop_switch_timer(struct lttng_ust_lib_ring_buffer *buf,
+ struct lttng_ust_shm_handle *handle)
{
struct channel *chan = shmp(handle, buf->backend.chan);
*/
static void read_buffer_timer(unsigned long data)
{
- struct lib_ring_buffer *buf = (struct lib_ring_buffer *)data;
+ struct lttng_ust_lib_ring_buffer *buf = (struct lttng_ust_lib_ring_buffer *)data;
struct channel *chan = shmp(handle, buf->backend.chan);
- const struct lib_ring_buffer_config *config = &chan->backend.config;
+ const struct lttng_ust_lib_ring_buffer_config *config = &chan->backend.config;
CHAN_WARN_ON(chan, !buf->backend.allocated);
}
#endif //0
-static void lib_ring_buffer_start_read_timer(struct lib_ring_buffer *buf,
- struct shm_handle *handle)
+static void lib_ring_buffer_start_read_timer(struct lttng_ust_lib_ring_buffer *buf,
+ struct lttng_ust_shm_handle *handle)
{
struct channel *chan = shmp(handle, buf->backend.chan);
- const struct lib_ring_buffer_config *config = &chan->backend.config;
+ const struct lttng_ust_lib_ring_buffer_config *config = &chan->backend.config;
if (config->wakeup != RING_BUFFER_WAKEUP_BY_TIMER
|| !chan->read_timer_interval
buf->read_timer_enabled = 1;
}
-static void lib_ring_buffer_stop_read_timer(struct lib_ring_buffer *buf,
- struct shm_handle *handle)
+static void lib_ring_buffer_stop_read_timer(struct lttng_ust_lib_ring_buffer *buf,
+ struct lttng_ust_shm_handle *handle)
{
struct channel *chan = shmp(handle, buf->backend.chan);
- const struct lib_ring_buffer_config *config = &chan->backend.config;
+ const struct lttng_ust_lib_ring_buffer_config *config = &chan->backend.config;
if (config->wakeup != RING_BUFFER_WAKEUP_BY_TIMER
|| !chan->read_timer_interval
}
static void channel_unregister_notifiers(struct channel *chan,
- struct shm_handle *handle)
+ struct lttng_ust_shm_handle *handle)
{
- const struct lib_ring_buffer_config *config = &chan->backend.config;
+ const struct lttng_ust_lib_ring_buffer_config *config = &chan->backend.config;
int cpu;
if (config->alloc == RING_BUFFER_ALLOC_PER_CPU) {
for_each_possible_cpu(cpu) {
- struct lib_ring_buffer *buf = shmp(handle, chan->backend.buf[cpu].shmp);
+ struct lttng_ust_lib_ring_buffer *buf = shmp(handle, chan->backend.buf[cpu].shmp);
lib_ring_buffer_stop_switch_timer(buf, handle);
lib_ring_buffer_stop_read_timer(buf, handle);
}
} else {
- struct lib_ring_buffer *buf = shmp(handle, chan->backend.buf[0].shmp);
+ struct lttng_ust_lib_ring_buffer *buf = shmp(handle, chan->backend.buf[0].shmp);
lib_ring_buffer_stop_switch_timer(buf, handle);
lib_ring_buffer_stop_read_timer(buf, handle);
//channel_backend_unregister_notifiers(&chan->backend);
}
-static void channel_free(struct channel *chan, struct shm_handle *handle,
+static void channel_free(struct channel *chan, struct lttng_ust_shm_handle *handle,
int shadow)
{
if (!shadow)
* Holds cpu hotplug.
* Returns NULL on failure.
*/
-struct shm_handle *channel_create(const struct lib_ring_buffer_config *config,
+struct lttng_ust_shm_handle *channel_create(const struct lttng_ust_lib_ring_buffer_config *config,
const char *name, void *priv, void *buf_addr,
size_t subbuf_size,
size_t num_subbuf, unsigned int switch_timer_interval,
int ret, cpu;
size_t shmsize;
struct channel *chan;
- struct shm_handle *handle;
+ struct lttng_ust_shm_handle *handle;
struct shm_object *shmobj;
struct shm_ref *ref;
read_timer_interval))
return NULL;
- handle = zmalloc(sizeof(struct shm_handle));
+ handle = zmalloc(sizeof(struct lttng_ust_shm_handle));
if (!handle)
return NULL;
/* Calculate the shm allocation layout */
shmsize = sizeof(struct channel);
if (config->alloc == RING_BUFFER_ALLOC_PER_CPU)
- shmsize += sizeof(struct lib_ring_buffer_shmp) * num_possible_cpus();
+ shmsize += sizeof(struct lttng_ust_lib_ring_buffer_shmp) * num_possible_cpus();
else
- shmsize += sizeof(struct lib_ring_buffer_shmp);
+ shmsize += sizeof(struct lttng_ust_lib_ring_buffer_shmp);
shmobj = shm_object_table_append(handle->table, shmsize);
if (!shmobj)
* In that off case, we need to allocate for all possible cpus.
*/
for_each_possible_cpu(cpu) {
- struct lib_ring_buffer *buf = shmp(handle, chan->backend.buf[cpu].shmp);
+ struct lttng_ust_lib_ring_buffer *buf = shmp(handle, chan->backend.buf[cpu].shmp);
lib_ring_buffer_start_switch_timer(buf, handle);
lib_ring_buffer_start_read_timer(buf, handle);
}
} else {
- struct lib_ring_buffer *buf = shmp(handle, chan->backend.buf[0].shmp);
+ struct lttng_ust_lib_ring_buffer *buf = shmp(handle, chan->backend.buf[0].shmp);
lib_ring_buffer_start_switch_timer(buf, handle);
lib_ring_buffer_start_read_timer(buf, handle);
return NULL;
}
-struct shm_handle *channel_handle_create(int shm_fd, int wait_fd,
+struct lttng_ust_shm_handle *channel_handle_create(int shm_fd, int wait_fd,
uint64_t memory_map_size)
{
- struct shm_handle *handle;
+ struct lttng_ust_shm_handle *handle;
struct shm_object *object;
- handle = zmalloc(sizeof(struct shm_handle));
+ handle = zmalloc(sizeof(struct lttng_ust_shm_handle));
if (!handle)
return NULL;
return NULL;
}
-int channel_handle_add_stream(struct shm_handle *handle,
+int channel_handle_add_stream(struct lttng_ust_shm_handle *handle,
int shm_fd, int wait_fd, uint64_t memory_map_size)
{
struct shm_object *object;
}
static
-void channel_release(struct channel *chan, struct shm_handle *handle,
+void channel_release(struct channel *chan, struct lttng_ust_shm_handle *handle,
int shadow)
{
channel_free(chan, handle, shadow);
* They should release their handle at that point. Returns the private
* data pointer.
*/
-void *channel_destroy(struct channel *chan, struct shm_handle *handle,
+void *channel_destroy(struct channel *chan, struct lttng_ust_shm_handle *handle,
int shadow)
{
- const struct lib_ring_buffer_config *config = &chan->backend.config;
+ const struct lttng_ust_lib_ring_buffer_config *config = &chan->backend.config;
void *priv;
int cpu;
if (config->alloc == RING_BUFFER_ALLOC_PER_CPU) {
for_each_channel_cpu(cpu, chan) {
- struct lib_ring_buffer *buf = shmp(handle, chan->backend.buf[cpu].shmp);
+ struct lttng_ust_lib_ring_buffer *buf = shmp(handle, chan->backend.buf[cpu].shmp);
if (config->cb.buffer_finalize)
config->cb.buffer_finalize(buf,
//wake_up_interruptible(&buf->read_wait);
}
} else {
- struct lib_ring_buffer *buf = shmp(handle, chan->backend.buf[0].shmp);
+ struct lttng_ust_lib_ring_buffer *buf = shmp(handle, chan->backend.buf[0].shmp);
if (config->cb.buffer_finalize)
config->cb.buffer_finalize(buf, chan->backend.priv, -1, handle);
return priv;
}
-struct lib_ring_buffer *channel_get_ring_buffer(
- const struct lib_ring_buffer_config *config,
+struct lttng_ust_lib_ring_buffer *channel_get_ring_buffer(
+ const struct lttng_ust_lib_ring_buffer_config *config,
struct channel *chan, int cpu,
- struct shm_handle *handle,
+ struct lttng_ust_shm_handle *handle,
int *shm_fd, int *wait_fd,
uint64_t *memory_map_size)
{
}
}
-int lib_ring_buffer_open_read(struct lib_ring_buffer *buf,
- struct shm_handle *handle,
+int lib_ring_buffer_open_read(struct lttng_ust_lib_ring_buffer *buf,
+ struct lttng_ust_shm_handle *handle,
int shadow)
{
if (shadow) {
return 0;
}
-void lib_ring_buffer_release_read(struct lib_ring_buffer *buf,
- struct shm_handle *handle,
+void lib_ring_buffer_release_read(struct lttng_ust_lib_ring_buffer *buf,
+ struct lttng_ust_shm_handle *handle,
int shadow)
{
struct channel *chan = shmp(handle, buf->backend.chan);
* data to read at consumed position, or 0 if the get operation succeeds.
*/
-int lib_ring_buffer_snapshot(struct lib_ring_buffer *buf,
+int lib_ring_buffer_snapshot(struct lttng_ust_lib_ring_buffer *buf,
unsigned long *consumed, unsigned long *produced,
- struct shm_handle *handle)
+ struct lttng_ust_shm_handle *handle)
{
struct channel *chan = shmp(handle, buf->backend.chan);
- const struct lib_ring_buffer_config *config = &chan->backend.config;
+ const struct lttng_ust_lib_ring_buffer_config *config = &chan->backend.config;
unsigned long consumed_cur, write_offset;
int finalized;
* @buf: ring buffer
* @consumed_new: new consumed count value
*/
-void lib_ring_buffer_move_consumer(struct lib_ring_buffer *buf,
+void lib_ring_buffer_move_consumer(struct lttng_ust_lib_ring_buffer *buf,
unsigned long consumed_new,
- struct shm_handle *handle)
+ struct lttng_ust_shm_handle *handle)
{
- struct lib_ring_buffer_backend *bufb = &buf->backend;
+ struct lttng_ust_lib_ring_buffer_backend *bufb = &buf->backend;
struct channel *chan = shmp(handle, bufb->chan);
unsigned long consumed;
* Returns -ENODATA if buffer is finalized, -EAGAIN if there is currently no
* data to read at consumed position, or 0 if the get operation succeeds.
*/
-int lib_ring_buffer_get_subbuf(struct lib_ring_buffer *buf,
+int lib_ring_buffer_get_subbuf(struct lttng_ust_lib_ring_buffer *buf,
unsigned long consumed,
- struct shm_handle *handle)
+ struct lttng_ust_shm_handle *handle)
{
struct channel *chan = shmp(handle, buf->backend.chan);
- const struct lib_ring_buffer_config *config = &chan->backend.config;
+ const struct lttng_ust_lib_ring_buffer_config *config = &chan->backend.config;
unsigned long consumed_cur, consumed_idx, commit_count, write_offset;
int ret;
int finalized;
* lib_ring_buffer_put_subbuf - release exclusive subbuffer access
* @buf: ring buffer
*/
-void lib_ring_buffer_put_subbuf(struct lib_ring_buffer *buf,
- struct shm_handle *handle)
+void lib_ring_buffer_put_subbuf(struct lttng_ust_lib_ring_buffer *buf,
+ struct lttng_ust_shm_handle *handle)
{
- struct lib_ring_buffer_backend *bufb = &buf->backend;
+ struct lttng_ust_lib_ring_buffer_backend *bufb = &buf->backend;
struct channel *chan = shmp(handle, bufb->chan);
- const struct lib_ring_buffer_config *config = &chan->backend.config;
+ const struct lttng_ust_lib_ring_buffer_config *config = &chan->backend.config;
unsigned long read_sb_bindex, consumed_idx, consumed;
CHAN_WARN_ON(chan, uatomic_read(&buf->active_readers) != 1
* position and the writer position. (inclusive)
*/
static
-void lib_ring_buffer_print_subbuffer_errors(struct lib_ring_buffer *buf,
+void lib_ring_buffer_print_subbuffer_errors(struct lttng_ust_lib_ring_buffer *buf,
struct channel *chan,
unsigned long cons_offset,
int cpu,
- struct shm_handle *handle)
+ struct lttng_ust_shm_handle *handle)
{
- const struct lib_ring_buffer_config *config = &chan->backend.config;
+ const struct lttng_ust_lib_ring_buffer_config *config = &chan->backend.config;
unsigned long cons_idx, commit_count, commit_count_sb;
cons_idx = subbuf_index(cons_offset, chan);
}
static
-void lib_ring_buffer_print_buffer_errors(struct lib_ring_buffer *buf,
+void lib_ring_buffer_print_buffer_errors(struct lttng_ust_lib_ring_buffer *buf,
struct channel *chan,
void *priv, int cpu,
- struct shm_handle *handle)
+ struct lttng_ust_shm_handle *handle)
{
- const struct lib_ring_buffer_config *config = &chan->backend.config;
+ const struct lttng_ust_lib_ring_buffer_config *config = &chan->backend.config;
unsigned long write_offset, cons_offset;
/*
static
void lib_ring_buffer_print_errors(struct channel *chan,
- struct lib_ring_buffer *buf, int cpu,
- struct shm_handle *handle)
+ struct lttng_ust_lib_ring_buffer *buf, int cpu,
+ struct lttng_ust_shm_handle *handle)
{
- const struct lib_ring_buffer_config *config = &chan->backend.config;
+ const struct lttng_ust_lib_ring_buffer_config *config = &chan->backend.config;
void *priv = chan->backend.priv;
ERRMSG("ring buffer %s, cpu %d: %lu records written, "
* Only executed when the buffer is finalized, in SWITCH_FLUSH.
*/
static
-void lib_ring_buffer_switch_old_start(struct lib_ring_buffer *buf,
+void lib_ring_buffer_switch_old_start(struct lttng_ust_lib_ring_buffer *buf,
struct channel *chan,
struct switch_offsets *offsets,
u64 tsc,
- struct shm_handle *handle)
+ struct lttng_ust_shm_handle *handle)
{
- const struct lib_ring_buffer_config *config = &chan->backend.config;
+ const struct lttng_ust_lib_ring_buffer_config *config = &chan->backend.config;
unsigned long oldidx = subbuf_index(offsets->old, chan);
unsigned long commit_count;
* subbuffer.
*/
static
-void lib_ring_buffer_switch_old_end(struct lib_ring_buffer *buf,
+void lib_ring_buffer_switch_old_end(struct lttng_ust_lib_ring_buffer *buf,
struct channel *chan,
struct switch_offsets *offsets,
u64 tsc,
- struct shm_handle *handle)
+ struct lttng_ust_shm_handle *handle)
{
- const struct lib_ring_buffer_config *config = &chan->backend.config;
+ const struct lttng_ust_lib_ring_buffer_config *config = &chan->backend.config;
unsigned long oldidx = subbuf_index(offsets->old - 1, chan);
unsigned long commit_count, padding_size, data_size;
* that this code is executed before the deliver of this sub-buffer.
*/
static
-void lib_ring_buffer_switch_new_start(struct lib_ring_buffer *buf,
+void lib_ring_buffer_switch_new_start(struct lttng_ust_lib_ring_buffer *buf,
struct channel *chan,
struct switch_offsets *offsets,
u64 tsc,
- struct shm_handle *handle)
+ struct lttng_ust_shm_handle *handle)
{
- const struct lib_ring_buffer_config *config = &chan->backend.config;
+ const struct lttng_ust_lib_ring_buffer_config *config = &chan->backend.config;
unsigned long beginidx = subbuf_index(offsets->begin, chan);
unsigned long commit_count;
* have to do the deliver themselves.
*/
static
-void lib_ring_buffer_switch_new_end(struct lib_ring_buffer *buf,
+void lib_ring_buffer_switch_new_end(struct lttng_ust_lib_ring_buffer *buf,
struct channel *chan,
struct switch_offsets *offsets,
u64 tsc,
- struct shm_handle *handle)
+ struct lttng_ust_shm_handle *handle)
{
- const struct lib_ring_buffer_config *config = &chan->backend.config;
+ const struct lttng_ust_lib_ring_buffer_config *config = &chan->backend.config;
unsigned long endidx = subbuf_index(offsets->end - 1, chan);
unsigned long commit_count, padding_size, data_size;
*/
static
int lib_ring_buffer_try_switch_slow(enum switch_mode mode,
- struct lib_ring_buffer *buf,
+ struct lttng_ust_lib_ring_buffer *buf,
struct channel *chan,
struct switch_offsets *offsets,
u64 *tsc)
{
- const struct lib_ring_buffer_config *config = &chan->backend.config;
+ const struct lttng_ust_lib_ring_buffer_config *config = &chan->backend.config;
unsigned long off;
offsets->begin = v_read(config, &buf->offset);
* operations, this function must be called from the CPU which owns the buffer
* for a ACTIVE flush.
*/
-void lib_ring_buffer_switch_slow(struct lib_ring_buffer *buf, enum switch_mode mode,
- struct shm_handle *handle)
+void lib_ring_buffer_switch_slow(struct lttng_ust_lib_ring_buffer *buf, enum switch_mode mode,
+ struct lttng_ust_shm_handle *handle)
{
struct channel *chan = shmp(handle, buf->backend.chan);
- const struct lib_ring_buffer_config *config = &chan->backend.config;
+ const struct lttng_ust_lib_ring_buffer_config *config = &chan->backend.config;
struct switch_offsets offsets;
unsigned long oldidx;
u64 tsc;
* -EIO if data cannot be written into the buffer for any other reason.
*/
static
-int lib_ring_buffer_try_reserve_slow(struct lib_ring_buffer *buf,
+int lib_ring_buffer_try_reserve_slow(struct lttng_ust_lib_ring_buffer *buf,
struct channel *chan,
struct switch_offsets *offsets,
- struct lib_ring_buffer_ctx *ctx)
+ struct lttng_ust_lib_ring_buffer_ctx *ctx)
{
- const struct lib_ring_buffer_config *config = &chan->backend.config;
- struct shm_handle *handle = ctx->handle;
+ const struct lttng_ust_lib_ring_buffer_config *config = &chan->backend.config;
+ struct lttng_ust_shm_handle *handle = ctx->handle;
unsigned long reserve_commit_diff;
offsets->begin = v_read(config, &buf->offset);
* -EIO for other errors, else returns 0.
* It will take care of sub-buffer switching.
*/
-int lib_ring_buffer_reserve_slow(struct lib_ring_buffer_ctx *ctx)
+int lib_ring_buffer_reserve_slow(struct lttng_ust_lib_ring_buffer_ctx *ctx)
{
struct channel *chan = ctx->chan;
- struct shm_handle *handle = ctx->handle;
- const struct lib_ring_buffer_config *config = &chan->backend.config;
- struct lib_ring_buffer *buf;
+ struct lttng_ust_shm_handle *handle = ctx->handle;
+ const struct lttng_ust_lib_ring_buffer_config *config = &chan->backend.config;
+ struct lttng_ust_lib_ring_buffer *buf;
struct switch_offsets offsets;
int ret;