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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 v22 10/13] trace-cmd: Refactor few trace-cmd internal functions.
Date: Wed,  4 Mar 2020 11:12:17 +0200	[thread overview]
Message-ID: <20200304091220.30936-11-tz.stoyanov@gmail.com> (raw)
In-Reply-To: <20200304091220.30936-1-tz.stoyanov@gmail.com>

In order to reuse code inside trace-cmd application context,
few functions are made non static and "trace_" is prepended
to their names:
	int trace_make_vsock(unsigned int port);
	int trace_get_vsock_port(int sd, unsigned int *port);
	int trace_open_vsock(unsigned int cid, unsigned int port);
	char *trace_get_guest_file(const char *file, const char *guest);

Signed-off-by: Tzvetomir Stoyanov (VMware) <tz.stoyanov@gmail.com>
---
 tracecmd/include/trace-local.h |  6 ++++++
 tracecmd/trace-agent.c         | 10 +++++-----
 tracecmd/trace-record.c        | 18 +++++++++---------
 3 files changed, 20 insertions(+), 14 deletions(-)

diff --git a/tracecmd/include/trace-local.h b/tracecmd/include/trace-local.h
index dc934f28..95d0026b 100644
--- a/tracecmd/include/trace-local.h
+++ b/tracecmd/include/trace-local.h
@@ -263,6 +263,12 @@ void tracecmd_disable_tracing(void);
 void tracecmd_enable_tracing(void);
 void tracecmd_stat_cpu(struct trace_seq *s, int cpu);
 
+int trace_make_vsock(unsigned int port);
+int trace_get_vsock_port(int sd, unsigned int *port);
+int trace_open_vsock(unsigned int cid, unsigned int port);
+
+char *trace_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 52d27195..a8ef0852 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 trace_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 trace_get_vsock_port(int sd, unsigned int *port)
 {
 	struct sockaddr_vm addr;
 	socklen_t addr_len = sizeof(addr);
@@ -87,11 +87,11 @@ static void make_vsocks(int nr, int *fds, unsigned int *ports)
 	int i, fd, ret;
 
 	for (i = 0; i < nr; i++) {
-		fd = make_vsock(VMADDR_PORT_ANY);
+		fd = trace_make_vsock(VMADDR_PORT_ANY);
 		if (fd < 0)
 			die("Failed to open vsocket");
 
-		ret = get_vsock_port(fd, &port);
+		ret = trace_get_vsock_port(fd, &port);
 		if (ret < 0)
 			die("Failed to get vsocket address");
 
@@ -210,7 +210,7 @@ static void agent_serve(unsigned int port)
 	nr_cpus = tracecmd_count_cpus();
 	page_size = getpagesize();
 
-	sd = make_vsock(port);
+	sd = trace_make_vsock(port);
 	if (sd < 0)
 		die("Failed to open vsocket");
 
diff --git a/tracecmd/trace-record.c b/tracecmd/trace-record.c
index 2e82464d..0151b9d4 100644
--- a/tracecmd/trace-record.c
+++ b/tracecmd/trace-record.c
@@ -537,7 +537,7 @@ 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 *trace_get_guest_file(const char *file, const char *guest)
 {
 	const char *p;
 	char *out = NULL;
@@ -2930,7 +2930,7 @@ static int connect_port(const char *host, unsigned int port)
 }
 
 #ifdef VSOCK
-static int open_vsock(unsigned int cid, unsigned int port)
+int trace_open_vsock(unsigned int cid, unsigned int port)
 {
 	struct sockaddr_vm addr = {
 		.svm_family = AF_VSOCK,
@@ -2993,7 +2993,7 @@ static bool can_splice_read_vsock(void)
 }
 
 #else
-static inline int open_vsock(unsigned int cid, unsigned int port)
+int trace_open_vsock(unsigned int cid, unsigned int port)
 {
 	die("vsock is not supported");
 	return -1;
@@ -3305,7 +3305,7 @@ create_recorder_instance(struct buffer_instance *instance, const char *file, int
 		if (instance->use_fifos)
 			fd = instance->fds[cpu];
 		else
-			fd = open_vsock(instance->cid, instance->client_ports[cpu]);
+			fd = trace_open_vsock(instance->cid, instance->client_ports[cpu]);
 		if (fd < 0)
 			die("Failed to connect to agent");
 
@@ -3697,7 +3697,7 @@ static void connect_to_agent(struct buffer_instance *instance)
 		use_fifos = nr_fifos > 0;
 	}
 
-	sd = open_vsock(instance->cid, instance->port);
+	sd = trace_open_vsock(instance->cid, instance->port);
 	if (sd < 0)
 		die("Failed to connect to vsocket @%u:%u",
 		    instance->cid, instance->port);
@@ -3748,8 +3748,8 @@ static void setup_guest(struct buffer_instance *instance)
 	int fd;
 
 	/* Create a place to store the guest meta data */
-	file = get_guest_file(output_file,
-			      tracefs_instance_get_name(instance->tracefs));
+	file = trace_get_guest_file(output_file,
+				    tracefs_instance_get_name(instance->tracefs));
 	if (!file)
 		die("Failed to allocate memory");
 
@@ -4085,8 +4085,8 @@ static void write_guest_file(struct buffer_instance *instance)
 	char **temp_files;
 	int i, fd;
 
-	file = get_guest_file(output_file,
-			      tracefs_instance_get_name(instance->tracefs));
+	file = trace_get_guest_file(output_file,
+				    tracefs_instance_get_name(instance->tracefs));
 	if (!file)
 		die("Failed to allocate memory");
 
-- 
2.24.1


  parent reply	other threads:[~2020-03-04  9:12 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-04  9:12 [PATCH v22 00/13] Timestamp synchronization of host - guest tracing session Tzvetomir Stoyanov (VMware)
2020-03-04  9:12 ` [PATCH v22 01/13] trace-cmd: Find and store pids of tasks, which run virtual CPUs of given VM Tzvetomir Stoyanov (VMware)
2020-03-04 21:09   ` Steven Rostedt
2020-03-04  9:12 ` [PATCH v22 02/13] trace-cmd: Implement new API tracecmd_add_option_v() Tzvetomir Stoyanov (VMware)
2020-03-04  9:12 ` [PATCH v22 03/13] trace-cmd: Add new API to generate a unique ID of the tracing session Tzvetomir Stoyanov (VMware)
2020-03-04  9:12 ` [PATCH v22 04/13] trace-cmd: Store the session tracing ID in the trace.dat file Tzvetomir Stoyanov (VMware)
2020-03-04  9:12 ` [PATCH v22 05/13] trace-cmd: Add definitions of htonll() and ntohll() Tzvetomir Stoyanov (VMware)
2020-03-05 15:48   ` [PATCH] trace-cmd: Make functions in trace-write-local.h inline Steven Rostedt
2020-03-04  9:12 ` [PATCH v22 06/13] trace-cmd: Exchange tracing IDs between host and guest Tzvetomir Stoyanov (VMware)
2020-03-04  9:12 ` [PATCH v22 07/13] trace-cmd: Implement new option in trace.dat file: TRACECMD_OPTION_TIME_SHIFT Tzvetomir Stoyanov (VMware)
2020-03-05 17:46   ` [PATCH] trace-cmd: Adjust host_trace_info structure to be better packed Steven Rostedt
2020-03-04  9:12 ` [PATCH v22 08/13] trace-cmd: Add guest information in host's trace.dat file Tzvetomir Stoyanov (VMware)
2020-03-05 18:44   ` [PATCH] trace-cmd: Make name and cpu_pid into const pointers to tracecmd_get_guest_cpumap() Steven Rostedt
2020-03-04  9:12 ` [PATCH v22 09/13] trace-cmd: Add host trace clock as guest trace argument Tzvetomir Stoyanov (VMware)
2020-03-04  9:12 ` Tzvetomir Stoyanov (VMware) [this message]
2020-03-04  9:12 ` [PATCH v22 11/13] trace-cmd: Basic infrastructure for host - guest timestamp synchronization Tzvetomir Stoyanov (VMware)
2020-03-04  9:12 ` [PATCH v22 12/13] trace-cmd: [POC] PTP-like algorithm " Tzvetomir Stoyanov (VMware)
2020-03-04  9:12 ` [PATCH v22 13/13] trace-cmd: Debug scripts for " Tzvetomir Stoyanov (VMware)

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