X-Git-Url: http://git.lttng.org/?a=blobdiff_plain;f=liblttng-ust%2Fust-core.c;h=5355f5c117ad62104c34ee1fd7cfe2d94f67f810;hb=196ec2df2bce805b8c26582f10f2964a8d1da443;hp=f9c00ff07bda1d72bea3f42d1ad5d999023ca908;hpb=7dd08bec735b428479201f9f84d59c78deabdf57;p=lttng-ust.git diff --git a/liblttng-ust/ust-core.c b/liblttng-ust/ust-core.c index f9c00ff0..5355f5c1 100644 --- a/liblttng-ust/ust-core.c +++ b/liblttng-ust/ust-core.c @@ -18,25 +18,15 @@ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ +#define _LGPL_SOURCE #include #include #include +#include "lttng-tracer-core.h" +#include "jhash.h" static CDS_LIST_HEAD(lttng_transport_list); -void init_usterr(void) -{ - char *ust_debug; - - if (ust_loglevel == UST_LOGLEVEL_UNKNOWN) { - ust_debug = getenv("LTTNG_UST_DEBUG"); - if (ust_debug) - ust_loglevel = UST_LOGLEVEL_DEBUG; - else - ust_loglevel = UST_LOGLEVEL_NORMAL; - } -} - struct lttng_transport *lttng_transport_find(const char *name) { struct lttng_transport *transport; @@ -69,3 +59,59 @@ void lttng_transport_unregister(struct lttng_transport *transport) { cds_list_del(&transport->node); } + +/* + * Needed by comm layer. + */ +struct lttng_enum *lttng_ust_enum_get(struct lttng_session *session, + const char *enum_name) +{ + struct lttng_enum *_enum; + struct cds_hlist_head *head; + struct cds_hlist_node *node; + size_t name_len = strlen(enum_name); + uint32_t hash; + + hash = jhash(enum_name, name_len, 0); + head = &session->enums_ht.table[hash & (LTTNG_UST_ENUM_HT_SIZE - 1)]; + cds_hlist_for_each_entry(_enum, node, head, hlist) { + assert(_enum->desc); + if (!strncmp(_enum->desc->name, enum_name, + LTTNG_UST_SYM_NAME_LEN - 1)) + return _enum; + } + return NULL; +} + +size_t lttng_ust_dummy_get_size(struct lttng_ctx_field *field, size_t offset) +{ + size_t size = 0; + + size += lib_ring_buffer_align(offset, lttng_alignof(char)); + size += sizeof(char); /* tag */ + return size; +} + +void lttng_ust_dummy_record(struct lttng_ctx_field *field, + struct lttng_ust_lib_ring_buffer_ctx *ctx, + struct lttng_channel *chan) +{ + char sel_char = (char) LTTNG_UST_DYNAMIC_TYPE_NONE; + + lib_ring_buffer_align_ctx(ctx, lttng_alignof(sel_char)); + chan->ops->event_write(ctx, &sel_char, sizeof(sel_char)); +} + +void lttng_ust_dummy_get_value(struct lttng_ctx_field *field, + struct lttng_ctx_value *value) +{ + value->sel = LTTNG_UST_DYNAMIC_TYPE_NONE; +} + +int lttng_context_is_app(const char *name) +{ + if (strncmp(name, "$app.", strlen("$app.")) != 0) { + return 0; + } + return 1; +}