Tracepoint API namespacing ust-endian
[lttng-ust.git] / src / lib / lttng-ust-ctl / ustctl.c
index 96107fe743bb31dba8cb2ec499347e7ed427b61d..137bf43347d16f0c7dd81776b29590cfdfd72282 100644 (file)
@@ -16,6 +16,7 @@
 #include <lttng/ust-ctl.h>
 #include <lttng/ust-abi.h>
 #include <lttng/ust-endian.h>
+#include <lttng/ust-common.h>
 
 #include "common/logging.h"
 #include "common/ustcomm.h"
@@ -24,7 +25,7 @@
 
 #include "common/ringbuffer/backend.h"
 #include "common/ringbuffer/frontend.h"
-#include "lib/lttng-ust/ust-events-internal.h"
+#include "common/events.h"
 #include "common/wait.h"
 #include "lib/lttng-ust/lttng-rb-clients.h"
 #include "common/clock.h"
@@ -32,7 +33,7 @@
 #include "lib/lttng-ust/lttng-tracer-core.h"
 #include "lib/lttng-ust/lttng-counter-client.h"
 
-#include "common/counter/smp.h"
+#include "common/smp.h"
 #include "common/counter/counter.h"
 
 /*
@@ -57,7 +58,7 @@ struct ustctl_consumer_channel {
  * Stream representation within consumer.
  */
 struct ustctl_consumer_stream {
-       struct lttng_ust_lib_ring_buffer *buf;
+       struct lttng_ust_ring_buffer *buf;
        struct ustctl_consumer_channel *chan;
        int shm_fd, wait_fd, wakeup_fd;
        int cpu;
@@ -1320,9 +1321,9 @@ int ustctl_write_metadata_to_channel(
                const char *metadata_str,       /* NOT null-terminated */
                size_t len)                     /* metadata length */
 {
-       struct lttng_ust_lib_ring_buffer_ctx ctx;
+       struct lttng_ust_ring_buffer_ctx ctx;
        struct lttng_ust_channel_buffer *lttng_chan_buf = channel->chan;
-       struct lttng_ust_lib_ring_buffer_channel *rb_chan = lttng_chan_buf->priv->rb_chan;
+       struct lttng_ust_ring_buffer_channel *rb_chan = lttng_chan_buf->priv->rb_chan;
        const char *str = metadata_str;
        int ret = 0, waitret;
        size_t reserve_len, pos;
@@ -1331,7 +1332,7 @@ int ustctl_write_metadata_to_channel(
                reserve_len = min_t(size_t,
                                lttng_chan_buf->ops->priv->packet_avail_size(lttng_chan_buf),
                                len - pos);
-               lttng_ust_lib_ring_buffer_ctx_init(&ctx, rb_chan, reserve_len, sizeof(char), NULL);
+               lttng_ust_ring_buffer_ctx_init(&ctx, rb_chan, reserve_len, sizeof(char), NULL);
                /*
                 * We don't care about metadata buffer's records lost
                 * count, because we always retry here. Report error if
@@ -1368,9 +1369,9 @@ ssize_t ustctl_write_one_packet_to_channel(
                const char *metadata_str,       /* NOT null-terminated */
                size_t len)                     /* metadata length */
 {
-       struct lttng_ust_lib_ring_buffer_ctx ctx;
+       struct lttng_ust_ring_buffer_ctx ctx;
        struct lttng_ust_channel_buffer *lttng_chan_buf = channel->chan;
-       struct lttng_ust_lib_ring_buffer_channel *rb_chan = lttng_chan_buf->priv->rb_chan;
+       struct lttng_ust_ring_buffer_channel *rb_chan = lttng_chan_buf->priv->rb_chan;
        const char *str = metadata_str;
        ssize_t reserve_len;
        int ret;
@@ -1378,7 +1379,7 @@ ssize_t ustctl_write_one_packet_to_channel(
        reserve_len = min_t(ssize_t,
                        lttng_chan_buf->ops->priv->packet_avail_size(lttng_chan_buf),
                        len);
-       lttng_ust_lib_ring_buffer_ctx_init(&ctx, rb_chan, reserve_len, sizeof(char), NULL);
+       lttng_ust_ring_buffer_ctx_init(&ctx, rb_chan, reserve_len, sizeof(char), NULL);
        ret = lttng_chan_buf->ops->event_reserve(&ctx);
        if (ret != 0) {
                DBG("LTTng: event reservation failed");
@@ -1395,7 +1396,7 @@ end:
 
 int ustctl_channel_close_wait_fd(struct ustctl_consumer_channel *consumer_chan)
 {
-       struct lttng_ust_lib_ring_buffer_channel *chan;
+       struct lttng_ust_ring_buffer_channel *chan;
        int ret;
 
        chan = consumer_chan->chan->priv->rb_chan;
@@ -1408,7 +1409,7 @@ int ustctl_channel_close_wait_fd(struct ustctl_consumer_channel *consumer_chan)
 
 int ustctl_channel_close_wakeup_fd(struct ustctl_consumer_channel *consumer_chan)
 {
-       struct lttng_ust_lib_ring_buffer_channel *chan;
+       struct lttng_ust_ring_buffer_channel *chan;
        int ret;
 
        chan = consumer_chan->chan->priv->rb_chan;
@@ -1421,7 +1422,7 @@ int ustctl_channel_close_wakeup_fd(struct ustctl_consumer_channel *consumer_chan
 
 int ustctl_stream_close_wait_fd(struct ustctl_consumer_stream *stream)
 {
-       struct lttng_ust_lib_ring_buffer_channel *chan;
+       struct lttng_ust_ring_buffer_channel *chan;
 
        chan = stream->chan->chan->priv->rb_chan;
        return ring_buffer_stream_close_wait_fd(&chan->backend.config,
@@ -1430,7 +1431,7 @@ int ustctl_stream_close_wait_fd(struct ustctl_consumer_stream *stream)
 
 int ustctl_stream_close_wakeup_fd(struct ustctl_consumer_stream *stream)
 {
-       struct lttng_ust_lib_ring_buffer_channel *chan;
+       struct lttng_ust_ring_buffer_channel *chan;
 
        chan = stream->chan->chan->priv->rb_chan;
        return ring_buffer_stream_close_wakeup_fd(&chan->backend.config,
@@ -1443,10 +1444,10 @@ struct ustctl_consumer_stream *
 {
        struct ustctl_consumer_stream *stream;
        struct lttng_ust_shm_handle *handle;
-       struct lttng_ust_lib_ring_buffer_channel *rb_chan;
+       struct lttng_ust_ring_buffer_channel *rb_chan;
        int shm_fd, wait_fd, wakeup_fd;
        uint64_t memory_map_size;
-       struct lttng_ust_lib_ring_buffer *buf;
+       struct lttng_ust_ring_buffer *buf;
        int ret;
 
        if (!channel)
@@ -1483,7 +1484,7 @@ alloc_error:
 
 void ustctl_destroy_stream(struct ustctl_consumer_stream *stream)
 {
-       struct lttng_ust_lib_ring_buffer *buf;
+       struct lttng_ust_ring_buffer *buf;
        struct ustctl_consumer_channel *consumer_chan;
 
        assert(stream);
@@ -1513,7 +1514,7 @@ int ustctl_channel_get_wakeup_fd(struct ustctl_consumer_channel *chan)
 
 int ustctl_stream_get_wait_fd(struct ustctl_consumer_stream *stream)
 {
-       struct lttng_ust_lib_ring_buffer *buf;
+       struct lttng_ust_ring_buffer *buf;
        struct ustctl_consumer_channel *consumer_chan;
 
        if (!stream)
@@ -1525,7 +1526,7 @@ int ustctl_stream_get_wait_fd(struct ustctl_consumer_stream *stream)
 
 int ustctl_stream_get_wakeup_fd(struct ustctl_consumer_stream *stream)
 {
-       struct lttng_ust_lib_ring_buffer *buf;
+       struct lttng_ust_ring_buffer *buf;
        struct ustctl_consumer_channel *consumer_chan;
 
        if (!stream)
@@ -1539,7 +1540,7 @@ int ustctl_stream_get_wakeup_fd(struct ustctl_consumer_stream *stream)
 
 void *ustctl_get_mmap_base(struct ustctl_consumer_stream *stream)
 {
-       struct lttng_ust_lib_ring_buffer *buf;
+       struct lttng_ust_ring_buffer *buf;
        struct ustctl_consumer_channel *consumer_chan;
 
        if (!stream)
@@ -1555,7 +1556,7 @@ int ustctl_get_mmap_len(struct ustctl_consumer_stream *stream,
 {
        struct ustctl_consumer_channel *consumer_chan;
        unsigned long mmap_buf_len;
-       struct lttng_ust_lib_ring_buffer_channel *rb_chan;
+       struct lttng_ust_ring_buffer_channel *rb_chan;
 
        if (!stream)
                return -EINVAL;
@@ -1577,7 +1578,7 @@ int ustctl_get_max_subbuf_size(struct ustctl_consumer_stream *stream,
                unsigned long *len)
 {
        struct ustctl_consumer_channel *consumer_chan;
-       struct lttng_ust_lib_ring_buffer_channel *rb_chan;
+       struct lttng_ust_ring_buffer_channel *rb_chan;
 
        if (!stream)
                return -EINVAL;
@@ -1596,12 +1597,12 @@ int ustctl_get_max_subbuf_size(struct ustctl_consumer_stream *stream,
 int ustctl_get_mmap_read_offset(struct ustctl_consumer_stream *stream,
                unsigned long *off)
 {
-       struct lttng_ust_lib_ring_buffer_channel *rb_chan;
+       struct lttng_ust_ring_buffer_channel *rb_chan;
        unsigned long sb_bindex;
-       struct lttng_ust_lib_ring_buffer *buf;
+       struct lttng_ust_ring_buffer *buf;
        struct ustctl_consumer_channel *consumer_chan;
-       struct lttng_ust_lib_ring_buffer_backend_pages_shmp *barray_idx;
-       struct lttng_ust_lib_ring_buffer_backend_pages *pages;
+       struct lttng_ust_ring_buffer_backend_pages_shmp *barray_idx;
+       struct lttng_ust_ring_buffer_backend_pages *pages;
 
        if (!stream)
                return -EINVAL;
@@ -1628,8 +1629,8 @@ int ustctl_get_subbuf_size(struct ustctl_consumer_stream *stream,
                unsigned long *len)
 {
        struct ustctl_consumer_channel *consumer_chan;
-       struct lttng_ust_lib_ring_buffer_channel *rb_chan;
-       struct lttng_ust_lib_ring_buffer *buf;
+       struct lttng_ust_ring_buffer_channel *rb_chan;
+       struct lttng_ust_ring_buffer *buf;
 
        if (!stream)
                return -EINVAL;
@@ -1647,8 +1648,8 @@ int ustctl_get_padded_subbuf_size(struct ustctl_consumer_stream *stream,
                unsigned long *len)
 {
        struct ustctl_consumer_channel *consumer_chan;
-       struct lttng_ust_lib_ring_buffer_channel *rb_chan;
-       struct lttng_ust_lib_ring_buffer *buf;
+       struct lttng_ust_ring_buffer_channel *rb_chan;
+       struct lttng_ust_ring_buffer *buf;
 
        if (!stream)
                return -EINVAL;
@@ -1664,7 +1665,7 @@ int ustctl_get_padded_subbuf_size(struct ustctl_consumer_stream *stream,
 /* Get exclusive read access to the next sub-buffer that can be read. */
 int ustctl_get_next_subbuf(struct ustctl_consumer_stream *stream)
 {
-       struct lttng_ust_lib_ring_buffer *buf;
+       struct lttng_ust_ring_buffer *buf;
        struct ustctl_consumer_channel *consumer_chan;
 
        if (!stream)
@@ -1679,7 +1680,7 @@ int ustctl_get_next_subbuf(struct ustctl_consumer_stream *stream)
 /* Release exclusive sub-buffer access, move consumer forward. */
 int ustctl_put_next_subbuf(struct ustctl_consumer_stream *stream)
 {
-       struct lttng_ust_lib_ring_buffer *buf;
+       struct lttng_ust_ring_buffer *buf;
        struct ustctl_consumer_channel *consumer_chan;
 
        if (!stream)
@@ -1695,7 +1696,7 @@ int ustctl_put_next_subbuf(struct ustctl_consumer_stream *stream)
 /* Get a snapshot of the current ring buffer producer and consumer positions */
 int ustctl_snapshot(struct ustctl_consumer_stream *stream)
 {
-       struct lttng_ust_lib_ring_buffer *buf;
+       struct lttng_ust_ring_buffer *buf;
        struct ustctl_consumer_channel *consumer_chan;
 
        if (!stream)
@@ -1713,7 +1714,7 @@ int ustctl_snapshot(struct ustctl_consumer_stream *stream)
  */
 int ustctl_snapshot_sample_positions(struct ustctl_consumer_stream *stream)
 {
-       struct lttng_ust_lib_ring_buffer *buf;
+       struct lttng_ust_ring_buffer *buf;
        struct ustctl_consumer_channel *consumer_chan;
 
        if (!stream)
@@ -1729,7 +1730,7 @@ int ustctl_snapshot_sample_positions(struct ustctl_consumer_stream *stream)
 int ustctl_snapshot_get_consumed(struct ustctl_consumer_stream *stream,
                unsigned long *pos)
 {
-       struct lttng_ust_lib_ring_buffer *buf;
+       struct lttng_ust_ring_buffer *buf;
 
        if (!stream)
                return -EINVAL;
@@ -1742,7 +1743,7 @@ int ustctl_snapshot_get_consumed(struct ustctl_consumer_stream *stream,
 int ustctl_snapshot_get_produced(struct ustctl_consumer_stream *stream,
                unsigned long *pos)
 {
-       struct lttng_ust_lib_ring_buffer *buf;
+       struct lttng_ust_ring_buffer *buf;
 
        if (!stream)
                return -EINVAL;
@@ -1755,7 +1756,7 @@ int ustctl_snapshot_get_produced(struct ustctl_consumer_stream *stream,
 int ustctl_get_subbuf(struct ustctl_consumer_stream *stream,
                unsigned long *pos)
 {
-       struct lttng_ust_lib_ring_buffer *buf;
+       struct lttng_ust_ring_buffer *buf;
        struct ustctl_consumer_channel *consumer_chan;
 
        if (!stream)
@@ -1769,7 +1770,7 @@ int ustctl_get_subbuf(struct ustctl_consumer_stream *stream,
 /* Release exclusive sub-buffer access */
 int ustctl_put_subbuf(struct ustctl_consumer_stream *stream)
 {
-       struct lttng_ust_lib_ring_buffer *buf;
+       struct lttng_ust_ring_buffer *buf;
        struct ustctl_consumer_channel *consumer_chan;
 
        if (!stream)
@@ -1783,7 +1784,7 @@ int ustctl_put_subbuf(struct ustctl_consumer_stream *stream)
 void ustctl_flush_buffer(struct ustctl_consumer_stream *stream,
                int producer_active)
 {
-       struct lttng_ust_lib_ring_buffer *buf;
+       struct lttng_ust_ring_buffer *buf;
        struct ustctl_consumer_channel *consumer_chan;
 
        assert(stream);
@@ -1796,7 +1797,7 @@ void ustctl_flush_buffer(struct ustctl_consumer_stream *stream,
 
 void ustctl_clear_buffer(struct ustctl_consumer_stream *stream)
 {
-       struct lttng_ust_lib_ring_buffer *buf;
+       struct lttng_ust_ring_buffer *buf;
        struct ustctl_consumer_channel *consumer_chan;
 
        assert(stream);
@@ -1809,10 +1810,10 @@ void ustctl_clear_buffer(struct ustctl_consumer_stream *stream)
 
 static
 struct lttng_ust_client_lib_ring_buffer_client_cb *get_client_cb(
-               struct lttng_ust_lib_ring_buffer *buf __attribute__((unused)),
-               struct lttng_ust_lib_ring_buffer_channel *chan)
+               struct lttng_ust_ring_buffer *buf __attribute__((unused)),
+               struct lttng_ust_ring_buffer_channel *chan)
 {
-       const struct lttng_ust_lib_ring_buffer_config *config;
+       const struct lttng_ust_ring_buffer_config *config;
        struct lttng_ust_client_lib_ring_buffer_client_cb *client_cb;
 
        config = &chan->backend.config;
@@ -1828,8 +1829,8 @@ int ustctl_get_timestamp_begin(struct ustctl_consumer_stream *stream,
                uint64_t *timestamp_begin)
 {
        struct lttng_ust_client_lib_ring_buffer_client_cb *client_cb;
-       struct lttng_ust_lib_ring_buffer_channel *chan;
-       struct lttng_ust_lib_ring_buffer *buf;
+       struct lttng_ust_ring_buffer_channel *chan;
+       struct lttng_ust_ring_buffer *buf;
 
        if (!stream || !timestamp_begin)
                return -EINVAL;
@@ -1845,8 +1846,8 @@ int ustctl_get_timestamp_end(struct ustctl_consumer_stream *stream,
        uint64_t *timestamp_end)
 {
        struct lttng_ust_client_lib_ring_buffer_client_cb *client_cb;
-       struct lttng_ust_lib_ring_buffer_channel *chan;
-       struct lttng_ust_lib_ring_buffer *buf;
+       struct lttng_ust_ring_buffer_channel *chan;
+       struct lttng_ust_ring_buffer *buf;
 
        if (!stream || !timestamp_end)
                return -EINVAL;
@@ -1862,8 +1863,8 @@ int ustctl_get_events_discarded(struct ustctl_consumer_stream *stream,
        uint64_t *events_discarded)
 {
        struct lttng_ust_client_lib_ring_buffer_client_cb *client_cb;
-       struct lttng_ust_lib_ring_buffer_channel *chan;
-       struct lttng_ust_lib_ring_buffer *buf;
+       struct lttng_ust_ring_buffer_channel *chan;
+       struct lttng_ust_ring_buffer *buf;
 
        if (!stream || !events_discarded)
                return -EINVAL;
@@ -1879,8 +1880,8 @@ int ustctl_get_content_size(struct ustctl_consumer_stream *stream,
        uint64_t *content_size)
 {
        struct lttng_ust_client_lib_ring_buffer_client_cb *client_cb;
-       struct lttng_ust_lib_ring_buffer_channel *chan;
-       struct lttng_ust_lib_ring_buffer *buf;
+       struct lttng_ust_ring_buffer_channel *chan;
+       struct lttng_ust_ring_buffer *buf;
 
        if (!stream || !content_size)
                return -EINVAL;
@@ -1896,8 +1897,8 @@ int ustctl_get_packet_size(struct ustctl_consumer_stream *stream,
        uint64_t *packet_size)
 {
        struct lttng_ust_client_lib_ring_buffer_client_cb *client_cb;
-       struct lttng_ust_lib_ring_buffer_channel *chan;
-       struct lttng_ust_lib_ring_buffer *buf;
+       struct lttng_ust_ring_buffer_channel *chan;
+       struct lttng_ust_ring_buffer *buf;
 
        if (!stream || !packet_size)
                return -EINVAL;
@@ -1913,8 +1914,8 @@ int ustctl_get_stream_id(struct ustctl_consumer_stream *stream,
                uint64_t *stream_id)
 {
        struct lttng_ust_client_lib_ring_buffer_client_cb *client_cb;
-       struct lttng_ust_lib_ring_buffer_channel *chan;
-       struct lttng_ust_lib_ring_buffer *buf;
+       struct lttng_ust_ring_buffer_channel *chan;
+       struct lttng_ust_ring_buffer *buf;
 
        if (!stream || !stream_id)
                return -EINVAL;
@@ -1930,8 +1931,8 @@ int ustctl_get_current_timestamp(struct ustctl_consumer_stream *stream,
                uint64_t *ts)
 {
        struct lttng_ust_client_lib_ring_buffer_client_cb *client_cb;
-       struct lttng_ust_lib_ring_buffer_channel *chan;
-       struct lttng_ust_lib_ring_buffer *buf;
+       struct lttng_ust_ring_buffer_channel *chan;
+       struct lttng_ust_ring_buffer *buf;
 
        if (!stream || !ts)
                return -EINVAL;
@@ -1947,8 +1948,8 @@ int ustctl_get_sequence_number(struct ustctl_consumer_stream *stream,
                uint64_t *seq)
 {
        struct lttng_ust_client_lib_ring_buffer_client_cb *client_cb;
-       struct lttng_ust_lib_ring_buffer_channel *chan;
-       struct lttng_ust_lib_ring_buffer *buf;
+       struct lttng_ust_ring_buffer_channel *chan;
+       struct lttng_ust_ring_buffer *buf;
 
        if (!stream || !seq)
                return -EINVAL;
@@ -1964,8 +1965,8 @@ int ustctl_get_instance_id(struct ustctl_consumer_stream *stream,
                uint64_t *id)
 {
        struct lttng_ust_client_lib_ring_buffer_client_cb *client_cb;
-       struct lttng_ust_lib_ring_buffer_channel *chan;
-       struct lttng_ust_lib_ring_buffer *buf;
+       struct lttng_ust_ring_buffer_channel *chan;
+       struct lttng_ust_ring_buffer *buf;
 
        if (!stream || !id)
                return -EINVAL;
@@ -2124,11 +2125,11 @@ int ustctl_recv_reg_msg(int sock,
                return len;
 
        if (reg_msg.magic == LTTNG_UST_ABI_COMM_MAGIC) {
-               *byte_order = BYTE_ORDER == BIG_ENDIAN ?
-                               BIG_ENDIAN : LITTLE_ENDIAN;
-       } else if (reg_msg.magic == bswap_32(LTTNG_UST_ABI_COMM_MAGIC)) {
-               *byte_order = BYTE_ORDER == BIG_ENDIAN ?
-                               LITTLE_ENDIAN : BIG_ENDIAN;
+               *byte_order = LTTNG_UST_BYTE_ORDER == LTTNG_UST_BIG_ENDIAN ?
+                               LTTNG_UST_BIG_ENDIAN : LTTNG_UST_LITTLE_ENDIAN;
+       } else if (reg_msg.magic == lttng_ust_bswap_32(LTTNG_UST_ABI_COMM_MAGIC)) {
+               *byte_order = LTTNG_UST_BYTE_ORDER == LTTNG_UST_BIG_ENDIAN ?
+                               LTTNG_UST_LITTLE_ENDIAN : LTTNG_UST_BIG_ENDIAN;
        } else {
                return -LTTNG_UST_ERR_INVAL_MAGIC;
        }
@@ -2534,7 +2535,7 @@ int ustctl_regenerate_statedump(int sock, int handle)
 
 int ustctl_get_nr_cpu_per_counter(void)
 {
-       return lttng_counter_num_possible_cpus();
+       return num_possible_cpus();
 }
 
 struct ustctl_daemon_counter *
@@ -2901,13 +2902,16 @@ int ustctl_counter_clear(struct ustctl_daemon_counter *counter,
 }
 
 static
-void ustctl_init(void)
+void lttng_ust_ctl_ctor(void)
        __attribute__((constructor));
 static
-void ustctl_init(void)
+void lttng_ust_ctl_ctor(void)
 {
-       lttng_ust_logging_init();
-       lttng_ust_getenv_init();        /* Needs lttng_ust_logging_init() to be completed. */
+       /*
+        * Call the liblttng-ust-common constructor to ensure it runs first.
+        */
+       lttng_ust_common_ctor();
+
        lttng_ust_clock_init();
        lttng_ust_ring_buffer_clients_init();
        lttng_ust_counter_clients_init();
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