X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fcommon%2Fcompat%2Ftid.h;fp=src%2Fcommon%2Fcompat%2Ftid.h;h=40f562f9749668f7f1ebbcea4b6e1d0513ca22c0;hp=0000000000000000000000000000000000000000;hb=ffe600149a7608221985751e1bf293234bf2545c;hpb=ccf7af6c78ba7a206baa9d0b9578468a1af734e1

diff --git a/src/common/compat/tid.h b/src/common/compat/tid.h
new file mode 100644
index 000000000..40f562f97
--- /dev/null
+++ b/src/common/compat/tid.h
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2012 (c) - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ *
+ * gettid compatibility layer.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#ifndef LTTNG_TID_H
+#define LTTNG_TID_H
+
+#ifdef __linux__
+#include <syscall.h>
+#endif
+
+#if defined(_syscall0)
+_syscall0(pid_t, gettid)
+#elif defined(__NR_gettid)
+#include <unistd.h>
+static inline pid_t gettid(void)
+{
+	return syscall(__NR_gettid);
+}
+#else
+#include <sys/types.h>
+#include <unistd.h>
+
+/* Fall-back on getpid for tid if not available. */
+static inline pid_t gettid(void)
+{
+	return getpid();
+}
+#endif
+
+#endif /* LTTNG_TID_H */