doc: remove duplicate LTTNG_UST_BLOCKING_RETRY_TIMEOUT man page entry

[lttng-ust.git] / liblttng-ust / lttng-context-vpid.c

diff --git a/liblttng-ust/lttng-context-vpid.c b/liblttng-ust/lttng-context-vpid.c
index fdf68fb1d17e0df10d1892e7e3bb4dfbc1d1cae2..5e5ed145d944adf08be61755eaa32faefe3e52b4 100644 (file)
--- a/liblttng-ust/lttng-context-vpid.c
+++ b/liblttng-ust/lttng-context-vpid.c
@@ -20,6 +20,7 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
+#define _LGPL_SOURCE
 #include <sys/types.h>
 #include <unistd.h>
 #include <lttng/ust-events.h>
@@ -62,7 +63,7 @@ void lttng_context_vpid_reset(void)
 #endif
 
 static
-size_t vpid_get_size(size_t offset)
+size_t vpid_get_size(struct lttng_ctx_field *field, size_t offset)
 {
        size_t size = 0;
 
@@ -74,7 +75,7 @@ size_t vpid_get_size(size_t offset)
 static
 void vpid_record(struct lttng_ctx_field *field,
                 struct lttng_ust_lib_ring_buffer_ctx *ctx,
-                struct ltt_channel *chan)
+                struct lttng_channel *chan)
 {
        pid_t pid;
 
@@ -83,6 +84,16 @@ void vpid_record(struct lttng_ctx_field *field,
        chan->ops->event_write(ctx, &pid, sizeof(pid));
 }
 
+static
+void vpid_get_value(struct lttng_ctx_field *field,
+               struct lttng_ctx_value *value)
+{
+       pid_t pid;
+
+       pid = wrapper_getpid();
+       value->u.s64 = pid;
+}
+
 int lttng_add_vpid_to_ctx(struct lttng_ctx **ctx)
 {
        struct lttng_ctx_field *field;
@@ -104,5 +115,7 @@ int lttng_add_vpid_to_ctx(struct lttng_ctx **ctx)
        field->event_field.type.u.basic.integer.encoding = lttng_encode_none;
        field->get_size = vpid_get_size;
        field->record = vpid_record;
+       field->get_value = vpid_get_value;
+       lttng_context_update(*ctx);
        return 0;
 }