X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=liblttng-ust%2Fcompat.h;h=003b480aa01d27dc428877dc9935963335e5340d;hb=de713d8a77cbd77e60f58537b0fc222f98fde395;hp=43b2223e43b84ad5c5dc373a8c327eb365fd32f4;hpb=1c7b4a9b7cc83f750a7d58d5e2f4894a2559f583;p=lttng-ust.git

diff --git a/liblttng-ust/compat.h b/liblttng-ust/compat.h
index 43b2223e..003b480a 100644
--- a/liblttng-ust/compat.h
+++ b/liblttng-ust/compat.h
@@ -3,6 +3,7 @@
 
 /*
  * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ * Copyright (C) 2016 Raphaël Beamonte <raphael.beamonte@gmail.com>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
@@ -34,7 +35,19 @@ void lttng_ust_getprocname(char *name)
 	(void) prctl(PR_GET_NAME, (unsigned long) name, 0, 0, 0);
 }
 
+/*
+ * If pthread_setname_np is available.
+ */
+#ifdef HAVE_PTHREAD_SETNAME_NP
+static inline
+int lttng_pthread_setname_np(pthread_t thread, const char *name)
+{
+	return pthread_setname_np(thread, name);
+}
+#endif
+
 #elif defined(__FreeBSD__)
+
 #include <stdlib.h>
 #include <string.h>
 
@@ -59,6 +72,59 @@ void lttng_ust_getprocname(char *name)
 		strncpy(name, bsd_name, LTTNG_UST_PROCNAME_LEN - 1);
 }
 
+/*
+ * If pthread_set_name_np is available.
+ */
+#ifdef HAVE_PTHREAD_SET_NAME_NP
+static inline
+int lttng_pthread_setname_np(pthread_t thread, const char *name)
+{
+	return pthread_set_name_np(thread, name);
+}
+#endif
+
+#endif
+
+/*
+ * If a pthread setname/set_name function is available, declare
+ * the setustprocname() function that will add '-ust' to the end
+ * of the current process name, while truncating it if needed.
+ */
+#if defined(HAVE_PTHREAD_SETNAME_NP) || defined(HAVE_PTHREAD_SETNAME_NP)
+#define LTTNG_UST_PROCNAME_SUFFIX "-ust"
+
+#include <pthread.h>
+
+static inline
+int lttng_ust_setustprocname(void)
+{
+	int ret = 0, len;
+	char name[LTTNG_UST_PROCNAME_LEN];
+	int limit = LTTNG_UST_PROCNAME_LEN - strlen(LTTNG_UST_PROCNAME_SUFFIX) - 1;
+
+	lttng_ust_getprocname(name);
+
+	len = strlen(name);
+	if (len > limit) {
+		len = limit;
+	}
+
+	ret = sprintf(name + len, LTTNG_UST_PROCNAME_SUFFIX);
+	if (ret != strlen(LTTNG_UST_PROCNAME_SUFFIX)) {
+		goto error;
+	}
+
+	ret = lttng_pthread_setname_np(pthread_self(), name);
+
+error:
+	return ret;
+}
+#else
+static inline
+int lttng_ust_setustprocname(void)
+{
+	return 0;
+}
 #endif
 
 #include <errno.h>