[PATCH v2 08/10] trace-cmd library: Use the new flow when creating output handler

[PATCH v2 08/10] trace-cmd library: Use the new flow when creating output handler

[Tzvetomir Stoyanov (VMware)]

The trace-cmd library APIs, that create a new output handler to a trace
file, are converted to use the newly introduced APIs. Affected are:
 tracecmd_create_file_latency()
 tracecmd_create_init_fd()
 tracecmd_create_init_file()
 tracecmd_copy()

Signed-off-by: Tzvetomir Stoyanov (VMware) <tz.stoyanov@gmail.com>
---
 lib/trace-cmd/trace-output.c | 54 ++++++++++++++++++++++++++++++++----
 1 file changed, 48 insertions(+), 6 deletions(-)

diff --git a/lib/trace-cmd/trace-output.c b/lib/trace-cmd/trace-output.c
index f8a16d82..9ea85b1c 100644
--- a/lib/trace-cmd/trace-output.c
+++ b/lib/trace-cmd/trace-output.c
@@ -1503,11 +1503,19 @@ struct tracecmd_output *tracecmd_create_file_latency(const char *output_file, in
 {
 	struct tracecmd_output *handle;
 	char *path;
+	int fd;
 
-	handle = create_file(output_file, NULL, NULL, NULL, &all_event_list);
-	if (!handle)
+	fd = open(output_file, O_RDWR | O_CREAT | O_TRUNC | O_LARGEFILE, 0644);
+	if (fd < 0)
 		return NULL;
 
+	handle = tracecmd_output_allocate(fd);
+	if (!handle)
+		goto out_free;
+	if (tracecmd_output_write_init(handle))
+		goto out_free;
+	if (tracecmd_output_write_headers(handle, NULL))
+		goto out_free;
 	/*
 	 * Save the command lines;
 	 */
@@ -1801,7 +1809,20 @@ struct tracecmd_output *tracecmd_get_output_handle_fd(int fd)
 
 struct tracecmd_output *tracecmd_create_init_fd(int fd)
 {
-	return create_file_fd(fd, NULL, NULL, NULL, &all_event_list, NULL);
+	struct tracecmd_output *out;
+
+	out = tracecmd_output_allocate(fd);
+	if (!out)
+		return NULL;
+	if (tracecmd_output_write_init(out))
+		goto error;
+	if (tracecmd_output_write_headers(out, NULL))
+		goto error;
+
+	return out;
+error:
+	tracecmd_output_close(out);
+	return NULL;
 }
 
 struct tracecmd_output *
@@ -1826,7 +1847,20 @@ tracecmd_create_init_file_glob(const char *output_file,
 
 struct tracecmd_output *tracecmd_create_init_file(const char *output_file)
 {
-	return create_file(output_file, NULL, NULL, NULL, &all_event_list);
+	struct tracecmd_output *handle;
+	int fd;
+
+	fd = open(output_file, O_RDWR | O_CREAT | O_TRUNC | O_LARGEFILE, 0644);
+	if (fd < 0)
+		return NULL;
+	handle = tracecmd_create_init_fd(fd);
+	if (!handle) {
+		close(fd);
+		unlink(output_file);
+		return NULL;
+	}
+
+	return handle;
 }
 
 struct tracecmd_output *tracecmd_create_init_file_override(const char *output_file,
@@ -1849,11 +1883,19 @@ struct tracecmd_output *tracecmd_copy(struct tracecmd_input *ihandle,
 				      const char *file)
 {
 	struct tracecmd_output *handle;
+	int fd;
 
-	handle = create_file(file, ihandle, NULL, NULL, &all_event_list);
-	if (!handle)
+	fd = open(file, O_RDWR | O_CREAT | O_TRUNC | O_LARGEFILE, 0644);
+	if (fd < 0)
 		return NULL;
 
+	handle = tracecmd_output_allocate(fd);
+	if (!handle)
+		goto out_free;
+	if (tracecmd_output_set_from_input(handle, ihandle))
+		goto out_free;
+	tracecmd_output_write_init(handle);
+
 	if (tracecmd_copy_headers(ihandle, handle->fd, 0, 0) < 0)
 		goto out_free;
 
-- 
2.33.1