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From: "Tzvetomir Stoyanov (VMware)" <tz.stoyanov@gmail.com>
To: rostedt@goodmis.org
Cc: linux-trace-devel@vger.kernel.org
Subject: [PATCH v19 07/15] trace-cmd: Add definitions of htonll() and ntohll()
Date: Fri, 31 Jan 2020 14:11:03 +0200
Message-ID: <20200131121111.130355-8-tz.stoyanov@gmail.com> (raw)
In-Reply-To: <20200131121111.130355-1-tz.stoyanov@gmail.com>

From: Tzvetomir Stoyanov <tstoyanov@vmware.com>

Reorganized libtracecmd internal headers:
 - Renamed trace-cmd-local.h to trace-write-local.h
This internal header implements static __do_write_check() function,
used in trace-input.c, trace-output.c and trace-msg.c files.
The header cannot be included in other files, which do not call
__do_write_check(). The new name trace-write-local.h reflects more
closely the purpose of the file.
 - Added trace-cmd-local.h file, to share code inside libtracecmd.
 - Added definitions of htonll() and ntohll(), if not already defined, in
trace-cmd-local.h

Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
---
 lib/trace-cmd/include/trace-cmd-local.h   | 45 ++++++-----------------
 lib/trace-cmd/include/trace-write-local.h | 43 ++++++++++++++++++++++
 lib/trace-cmd/trace-input.c               |  2 +-
 lib/trace-cmd/trace-msg.c                 |  2 +-
 lib/trace-cmd/trace-output.c              |  2 +
 5 files changed, 58 insertions(+), 36 deletions(-)
 create mode 100644 lib/trace-cmd/include/trace-write-local.h

diff --git a/lib/trace-cmd/include/trace-cmd-local.h b/lib/trace-cmd/include/trace-cmd-local.h
index 09574db..95dce66 100644
--- a/lib/trace-cmd/include/trace-cmd-local.h
+++ b/lib/trace-cmd/include/trace-cmd-local.h
@@ -6,10 +6,8 @@
 #ifndef _TRACE_CMD_LOCAL_H
 #define _TRACE_CMD_LOCAL_H
 
-/* Local for trace-input.c and trace-output.c */
-
-#include "trace-cmd.h"
-#include "event-utils.h"
+/* Can be overridden */
+void warning(const char *fmt, ...);
 
 /* trace.dat file format version */
 #define FILE_VERSION 6
@@ -18,36 +16,15 @@
 #define STR(x)	_STR(x)
 #define FILE_VERSION_STRING STR(FILE_VERSION)
 
-static ssize_t __do_write(int fd, const void *data, size_t size)
-{
-	ssize_t tot = 0;
-	ssize_t w;
-
-	do {
-		w = write(fd, data + tot, size - tot);
-		tot += w;
-
-		if (!w)
-			break;
-		if (w < 0)
-			return w;
-	} while (tot != size);
-
-	return tot;
-}
-
-static ssize_t
-__do_write_check(int fd, const void *data, size_t size)
-{
-	ssize_t ret;
-
-	ret = __do_write(fd, data, size);
-	if (ret < 0)
-		return ret;
-	if (ret != size)
-		return -1;
+#ifndef htonll
+# if __BYTE_ORDER == __LITTLE_ENDIAN
+#define htonll(x) __bswap_64(x)
+#define ntohll(x) __bswap_64(x)
+#else
+#define htonll(x) (x)
+#define ntohll(x) (x)
+#endif
+#endif
 
-	return 0;
-}
 
 #endif /* _TRACE_CMD_LOCAL_H */
diff --git a/lib/trace-cmd/include/trace-write-local.h b/lib/trace-cmd/include/trace-write-local.h
new file mode 100644
index 0000000..94ad910
--- /dev/null
+++ b/lib/trace-cmd/include/trace-write-local.h
@@ -0,0 +1,43 @@
+/* SPDX-License-Identifier: LGPL-2.1 */
+/*
+ * Copyright (C) 2010 Red Hat Inc, Steven Rostedt <srostedt@redhat.com>
+ *
+ */
+#ifndef _TRACE_WRITE_LOCAL_H
+#define _TRACE_WRITE_LOCAL_H
+
+/* Local for trace-input.c, trace-output.c and trace-msg.c */
+
+static ssize_t __do_write(int fd, const void *data, size_t size)
+{
+	ssize_t tot = 0;
+	ssize_t w;
+
+	do {
+		w = write(fd, data + tot, size - tot);
+		tot += w;
+
+		if (!w)
+			break;
+		if (w < 0)
+			return w;
+	} while (tot != size);
+
+	return tot;
+}
+
+static ssize_t
+__do_write_check(int fd, const void *data, size_t size)
+{
+	ssize_t ret;
+
+	ret = __do_write(fd, data, size);
+	if (ret < 0)
+		return ret;
+	if (ret != size)
+		return -1;
+
+	return 0;
+}
+
+#endif /* _TRACE_WRITE_LOCAL_H */
diff --git a/lib/trace-cmd/trace-input.c b/lib/trace-cmd/trace-input.c
index aca13c4..f5611b4 100644
--- a/lib/trace-cmd/trace-input.c
+++ b/lib/trace-cmd/trace-input.c
@@ -15,7 +15,7 @@
 
 #include <linux/time64.h>
 
-#include "trace-cmd-local.h"
+#include "trace-write-local.h"
 #include "trace-local.h"
 #include "kbuffer.h"
 #include "list.h"
diff --git a/lib/trace-cmd/trace-msg.c b/lib/trace-cmd/trace-msg.c
index 9c8a690..85a2bae 100644
--- a/lib/trace-cmd/trace-msg.c
+++ b/lib/trace-cmd/trace-msg.c
@@ -22,7 +22,7 @@
 #include <sys/types.h>
 #include <linux/types.h>
 
-#include "trace-cmd-local.h"
+#include "trace-write-local.h"
 #include "trace-local.h"
 #include "trace-msg.h"
 
diff --git a/lib/trace-cmd/trace-output.c b/lib/trace-cmd/trace-output.c
index acdd2d5..4a9a857 100644
--- a/lib/trace-cmd/trace-output.c
+++ b/lib/trace-cmd/trace-output.c
@@ -21,7 +21,9 @@
 #include <glob.h>
 
 #include "tracefs.h"
+#include "trace-cmd.h"
 #include "trace-cmd-local.h"
+#include "trace-write-local.h"
 #include "list.h"
 #include "trace-msg.h"
 
-- 
2.24.1


  parent reply index

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-31 12:10 [PATCH v19 00/15]Timestamp synchronization of host - guest tracing session Tzvetomir Stoyanov (VMware)
2020-01-31 12:10 ` [PATCH v19 01/15] trace-cmd: Add support for negative time offsets in trace.dat file Tzvetomir Stoyanov (VMware)
2020-01-31 12:10 ` [PATCH v19 02/15] trace-cmd: Add new library API for local CPU count Tzvetomir Stoyanov (VMware)
2020-01-31 12:10 ` [PATCH v19 03/15] trace-cmd: Find and store pids of tasks, which run virtual CPUs of given VM Tzvetomir Stoyanov (VMware)
2020-01-31 12:11 ` [PATCH v19 04/15] trace-cmd: Implement new API tracecmd_add_option_v() Tzvetomir Stoyanov (VMware)
2020-01-31 12:11 ` [PATCH v19 05/15] trace-cmd: Add new API to generate a unique ID of the tracing session Tzvetomir Stoyanov (VMware)
2020-01-31 12:11 ` [PATCH v19 06/15] trace-cmd: Store the session tracing ID in the trace.dat file Tzvetomir Stoyanov (VMware)
2020-01-31 12:11 ` Tzvetomir Stoyanov (VMware) [this message]
2020-01-31 12:11 ` [PATCH v19 08/15] trace-cmd: Exchange tracing IDs between host and guest Tzvetomir Stoyanov (VMware)
2020-01-31 12:11 ` [PATCH v19 09/15] trace-cmd: Implement new option in trace.dat file: TRACECMD_OPTION_TIME_SHIFT Tzvetomir Stoyanov (VMware)
2020-01-31 12:11 ` [PATCH v19 10/15] trace-cmd: Add guest information in host's trace.dat file Tzvetomir Stoyanov (VMware)
2020-01-31 12:11 ` [PATCH v19 11/15] trace-cmd: Add host trace clock as guest trace argument Tzvetomir Stoyanov (VMware)
2020-01-31 12:11 ` [PATCH v19 12/15] trace-cmd: Refactor few trace-cmd internal functions Tzvetomir Stoyanov (VMware)
2020-01-31 12:11 ` [PATCH v19 13/15] trace-cmd: Basic infrastructure for host - guest timestamp synchronization Tzvetomir Stoyanov (VMware)
2020-01-31 12:11 ` [PATCH v19 14/15] trace-cmd: [POC] PTP-like algorithm " Tzvetomir Stoyanov (VMware)
2020-01-31 12:11 ` [PATCH v19 15/15] trace-cmd: Debug scripts for " Tzvetomir Stoyanov (VMware)

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