X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;ds=sidebyside;f=liblttng-ust%2Flttng-context-procname.c;h=96a1b2ca2c36083b9d921220f1173f551256025d;hb=4e48b5d2debaf6c0c598489c183cc6cb2125c8a3;hp=ec89bd8af336bdaca2de0adc1e9120982e1f19a6;hpb=fc80554e0cd4c7739c64fe8bc8b87a77d3c19d07;p=lttng-ust.git diff --git a/liblttng-ust/lttng-context-procname.c b/liblttng-ust/lttng-context-procname.c index ec89bd8a..96a1b2ca 100644 --- a/liblttng-ust/lttng-context-procname.c +++ b/liblttng-ust/lttng-context-procname.c @@ -10,10 +10,11 @@ #include #include #include -#include +#include #include #include #include "compat.h" +#include "lttng-tracer-core.h" #include "context-internal.h" @@ -36,7 +37,7 @@ static DEFINE_URCU_TLS(procname_array, cached_procname); static DEFINE_URCU_TLS(int, procname_nesting); static inline -char *wrapper_getprocname(void) +const char *wrapper_getprocname(void) { int nesting = CMM_LOAD_SHARED(URCU_TLS(procname_nesting)); @@ -56,7 +57,7 @@ char *wrapper_getprocname(void) } /* Reset should not be called from a signal handler. */ -void lttng_context_procname_reset(void) +void lttng_ust_context_procname_reset(void) { CMM_STORE_SHARED(URCU_TLS(cached_procname)[1][0], '\0'); CMM_STORE_SHARED(URCU_TLS(procname_nesting), 1); @@ -65,53 +66,54 @@ void lttng_context_procname_reset(void) } static -size_t procname_get_size(struct lttng_ctx_field *field, size_t offset) +size_t procname_get_size(void *priv __attribute__((unused)), + size_t offset __attribute__((unused))) { return LTTNG_UST_ABI_PROCNAME_LEN; } static -void procname_record(struct lttng_ctx_field *field, +void procname_record(void *priv __attribute__((unused)), struct lttng_ust_lib_ring_buffer_ctx *ctx, - struct lttng_channel *chan) + struct lttng_ust_channel_buffer *chan) { - char *procname; + const char *procname; procname = wrapper_getprocname(); - chan->ops->event_write(ctx, procname, LTTNG_UST_ABI_PROCNAME_LEN); + chan->ops->event_write(ctx, procname, LTTNG_UST_ABI_PROCNAME_LEN, 1); } static -void procname_get_value(struct lttng_ctx_field *field, - struct lttng_ctx_value *value) +void procname_get_value(void *priv __attribute__((unused)), + struct lttng_ust_ctx_value *value) { value->u.str = wrapper_getprocname(); } -static const struct lttng_type procname_array_elem_type = - __type_integer(char, BYTE_ORDER, 10, UTF8); +static const struct lttng_ust_ctx_field *ctx_field = lttng_ust_static_ctx_field( + lttng_ust_static_event_field("procname", + lttng_ust_static_type_array_text(LTTNG_UST_ABI_PROCNAME_LEN), + false, false), + procname_get_size, + procname_record, + procname_get_value, + NULL, NULL); -int lttng_add_procname_to_ctx(struct lttng_ctx **ctx) +int lttng_add_procname_to_ctx(struct lttng_ust_ctx **ctx) { - struct lttng_ctx_field *field; - - field = lttng_append_context(ctx); - if (!field) - return -ENOMEM; - if (lttng_find_context(*ctx, "procname")) { - lttng_remove_context_field(ctx, field); - return -EEXIST; + int ret; + + if (lttng_find_context(*ctx, ctx_field->event_field->name)) { + ret = -EEXIST; + goto error_find_context; } - field->event_field.name = "procname"; - field->event_field.type.atype = atype_array_nestable; - field->event_field.type.u.array_nestable.elem_type = - &procname_array_elem_type; - field->event_field.type.u.array_nestable.length = LTTNG_UST_ABI_PROCNAME_LEN; - field->get_size = procname_get_size; - field->record = procname_record; - field->get_value = procname_get_value; - lttng_context_update(*ctx); + ret = lttng_ust_context_append(ctx, ctx_field); + if (ret) + return ret; return 0; + +error_find_context: + return ret; } /*