diff mbox series

[v17,15/18] trace-cmd: Refactor few trace-cmd internal functions.

Message ID 20191203103522.482684-16-tz.stoyanov@gmail.com (mailing list archive)
State Superseded
Headers show
Series Timestamp synchronization of host - guest tracing session | expand

Commit Message

Tzvetomir Stoyanov (VMware) Dec. 3, 2019, 10:35 a.m. UTC 
In order to reuse code inside trace-cmd application context,
few functions are made non static:
	int make_vsock(unsigned int port);
	int get_vsock_port(int sd, unsigned int *port);
	int open_vsock(unsigned int cid, unsigned int port);
	char *get_guest_file(const char *file, const char *guest);

Signed-off-by: Tzvetomir Stoyanov (VMware) <tz.stoyanov@gmail.com>
---
 tracecmd/include/trace-local.h | 8 ++++++++
 tracecmd/trace-agent.c         | 4 ++--
 tracecmd/trace-record.c        | 8 ++++----
 3 files changed, 14 insertions(+), 6 deletions(-)

Comments

Steven Rostedt Dec. 9, 2019, 7:32 p.m. UTC | #1 
On Tue,  3 Dec 2019 12:35:19 +0200
"Tzvetomir Stoyanov (VMware)" <tz.stoyanov@gmail.com> wrote:

> In order to reuse code inside trace-cmd application context,
> few functions are made non static:
> 	int make_vsock(unsigned int port);
> 	int get_vsock_port(int sd, unsigned int *port);
> 	int open_vsock(unsigned int cid, unsigned int port);
> 	char *get_guest_file(const char *file, const char *guest);

We should probably rename them to have a "trace_" prefix. This way we
know what functions are not static, but "trace_" means it's local,
where as "tracecmd_" means its exported.

-- Steve

> 
> Signed-off-by: Tzvetomir Stoyanov (VMware) <tz.stoyanov@gmail.com>
> ---
diff mbox series

Patch

diff --git a/tracecmd/include/trace-local.h b/tracecmd/include/trace-local.h
index a6f79c5..17ef31a 100644
--- a/tracecmd/include/trace-local.h
+++ b/tracecmd/include/trace-local.h
@@ -19,6 +19,8 @@ 
 #define GUEST_FIFO_FMT		GUEST_DIR_FMT "/" GUEST_PIPE_NAME "%d"
 #define VIRTIO_FIFO_FMT		"/dev/virtio-ports/" GUEST_PIPE_NAME "%d"
 
+#define TRACE_FILENAME		"trace.dat"
+
 /* fix stupid glib guint64 typecasts and printf formats */
 typedef unsigned long long u64;
 
@@ -258,6 +260,12 @@  void tracecmd_disable_tracing(void);
 void tracecmd_enable_tracing(void);
 void tracecmd_stat_cpu(struct trace_seq *s, int cpu);
 
+int make_vsock(unsigned int port);
+int get_vsock_port(int sd, unsigned int *port);
+int open_vsock(unsigned int cid, unsigned int port);
+
+char *get_guest_file(const char *file, const char *guest);
+
 /* No longer in event-utils.h */
 void __noreturn die(const char *fmt, ...); /* Can be overriden */
 void *malloc_or_die(unsigned int size); /* Can be overridden */
diff --git a/tracecmd/trace-agent.c b/tracecmd/trace-agent.c
index cc330b7..530f972 100644
--- a/tracecmd/trace-agent.c
+++ b/tracecmd/trace-agent.c
@@ -40,7 +40,7 @@  static int get_local_cid(unsigned int *cid)
 	return ret;
 }
 
-static int make_vsock(unsigned int port)
+int make_vsock(unsigned int port)
 {
 	struct sockaddr_vm addr = {
 		.svm_family = AF_VSOCK,
@@ -64,7 +64,7 @@  static int make_vsock(unsigned int port)
 	return sd;
 }
 
-static int get_vsock_port(int sd, unsigned int *port)
+int get_vsock_port(int sd, unsigned int *port)
 {
 	struct sockaddr_vm addr;
 	socklen_t addr_len = sizeof(addr);
diff --git a/tracecmd/trace-record.c b/tracecmd/trace-record.c
index e7fb1bd..e66f999 100644
--- a/tracecmd/trace-record.c
+++ b/tracecmd/trace-record.c
@@ -68,7 +68,7 @@  static int rt_prio;
 
 static int keep;
 
-static const char *output_file = "trace.dat";
+static const char *output_file = TRACE_FILENAME;
 
 static int latency;
 static int sleep_time = 1000;
@@ -536,7 +536,7 @@  static char *get_temp_file(struct buffer_instance *instance, int cpu)
 	return file;
 }
 
-static char *get_guest_file(const char *file, const char *guest)
+char *get_guest_file(const char *file, const char *guest)
 {
 	const char *p;
 	char *out = NULL;
@@ -2772,7 +2772,7 @@  static int connect_port(const char *host, unsigned int port)
 }
 
 #ifdef VSOCK
-static int open_vsock(unsigned int cid, unsigned int port)
+int open_vsock(unsigned int cid, unsigned int port)
 {
 	struct sockaddr_vm addr = {
 		.svm_family = AF_VSOCK,
@@ -2835,7 +2835,7 @@  static bool can_splice_read_vsock(void)
 }
 
 #else
-static inline int open_vsock(unsigned int cid, unsigned int port)
+int open_vsock(unsigned int cid, unsigned int port)
 {
 	die("vsock is not supported");
 	return -1;