[dpdk-dev] [PATCH v6 3/5] telemetry: build stubs for Windows

[Thomas Monjalon <thomas@monjalon.net>]

From: Fady Bader <fady@mellanox.com>

Telemetry didn't compile under Windows.
Empty stubs are arranged, waiting for a proper implementation.

Signed-off-by: Fady Bader <fady@mellanox.com>
Acked-by: Narcisa Vasile <navasile@linux.microsoft.com>
Acked-by: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
Acked-by: Ranjit Menon <ranjit.menon@intel.com>
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
---
 lib/librte_telemetry/rte_telemetry.h    |  1 +
 lib/librte_telemetry/telemetry.c        | 22 ++++++++++++++++++++++
 lib/librte_telemetry/telemetry_legacy.c | 11 ++++++++++-
 lib/meson.build                         |  1 +
 4 files changed, 34 insertions(+), 1 deletion(-)

diff --git a/lib/librte_telemetry/rte_telemetry.h b/lib/librte_telemetry/rte_telemetry.h
index d13010b8fb..deac2e71ca 100644
--- a/lib/librte_telemetry/rte_telemetry.h
+++ b/lib/librte_telemetry/rte_telemetry.h
@@ -3,6 +3,7 @@
  */
 
 #include <stdint.h>
+#include <sched.h>
 #include <rte_compat.h>
 
 #ifndef _RTE_TELEMETRY_H_
diff --git a/lib/librte_telemetry/telemetry.c b/lib/librte_telemetry/telemetry.c
index 0252282735..51e7ceeb1b 100644
--- a/lib/librte_telemetry/telemetry.c
+++ b/lib/librte_telemetry/telemetry.c
@@ -2,11 +2,13 @@
  * Copyright(c) 2020 Intel Corporation
  */
 
+#ifndef RTE_EXEC_ENV_WINDOWS
 #include <unistd.h>
 #include <pthread.h>
 #include <sys/socket.h>
 #include <sys/un.h>
 #include <dlfcn.h>
+#endif /* !RTE_EXEC_ENV_WINDOWS */
 
 /* we won't link against libbsd, so just always use DPDKs-specific strlcpy */
 #undef RTE_USE_LIBBSD
@@ -25,8 +27,10 @@
 #define MAX_OUTPUT_LEN (1024 * 16)
 #define MAX_CONNECTIONS 10
 
+#ifndef RTE_EXEC_ENV_WINDOWS
 static void *
 client_handler(void *socket);
+#endif /* !RTE_EXEC_ENV_WINDOWS */
 
 struct cmd_callback {
 	char cmd[MAX_CMD_LEN];
@@ -34,6 +38,7 @@ struct cmd_callback {
 	char help[MAX_HELP_LEN];
 };
 
+#ifndef RTE_EXEC_ENV_WINDOWS
 struct socket {
 	int sock;
 	char path[sizeof(((struct sockaddr_un *)0)->sun_path)];
@@ -42,13 +47,16 @@ struct socket {
 };
 static struct socket v2_socket; /* socket for v2 telemetry */
 static struct socket v1_socket; /* socket for v1 telemetry */
+#endif /* !RTE_EXEC_ENV_WINDOWS */
 static char telemetry_log_error[1024]; /* Will contain error on init failure */
 /* list of command callbacks, with one command registered by default */
 static struct cmd_callback callbacks[TELEMETRY_MAX_CALLBACKS];
 static int num_callbacks; /* How many commands are registered */
 /* Used when accessing or modifying list of command callbacks */
 static rte_spinlock_t callback_sl = RTE_SPINLOCK_INITIALIZER;
+#ifndef RTE_EXEC_ENV_WINDOWS
 static uint16_t v2_clients;
+#endif /* !RTE_EXEC_ENV_WINDOWS */
 
 int
 rte_telemetry_register_cmd(const char *cmd, telemetry_cb fn, const char *help)
@@ -78,6 +86,8 @@ rte_telemetry_register_cmd(const char *cmd, telemetry_cb fn, const char *help)
 	return 0;
 }
 
+#ifndef RTE_EXEC_ENV_WINDOWS
+
 static int
 list_commands(const char *cmd __rte_unused, const char *params __rte_unused,
 		struct rte_tel_data *d)
@@ -412,10 +422,13 @@ telemetry_v2_init(const char *runtime_dir, rte_cpuset_t *cpuset)
 	return 0;
 }
 
+#endif /* !RTE_EXEC_ENV_WINDOWS */
+
 int32_t
 rte_telemetry_init(const char *runtime_dir, rte_cpuset_t *cpuset,
 		const char **err_str)
 {
+#ifndef RTE_EXEC_ENV_WINDOWS
 	if (telemetry_v2_init(runtime_dir, cpuset) != 0) {
 		*err_str = telemetry_log_error;
 		return -1;
@@ -423,5 +436,14 @@ rte_telemetry_init(const char *runtime_dir, rte_cpuset_t *cpuset,
 	if (telemetry_legacy_init(runtime_dir, cpuset) != 0) {
 		*err_str = telemetry_log_error;
 	}
+#else /* RTE_EXEC_ENV_WINDOWS */
+	RTE_SET_USED(runtime_dir);
+	RTE_SET_USED(cpuset);
+	RTE_SET_USED(err_str);
+
+	snprintf(telemetry_log_error, sizeof(telemetry_log_error),
+		"DPDK Telemetry is not supported on Windows.");
+#endif /* RTE_EXEC_ENV_WINDOWS */
+
 	return 0;
 }
diff --git a/lib/librte_telemetry/telemetry_legacy.c b/lib/librte_telemetry/telemetry_legacy.c
index a341fe4ebd..b8e424041c 100644
--- a/lib/librte_telemetry/telemetry_legacy.c
+++ b/lib/librte_telemetry/telemetry_legacy.c
@@ -2,10 +2,12 @@
  * Copyright(c) 2020 Intel Corporation
  */
 
+#ifndef RTE_EXEC_ENV_WINDOWS
 #include <unistd.h>
 #include <sys/socket.h>
 #include <sys/un.h>
 #include <pthread.h>
+#endif /* !RTE_EXEC_ENV_WINDOWS */
 
 /* we won't link against libbsd, so just always use DPDKs-specific strlcpy */
 #undef RTE_USE_LIBBSD
@@ -24,7 +26,6 @@
 #define DATA_REQ_LABEL "\"data\":"
 #define TELEMETRY_LEGACY_MAX_CALLBACKS 4
 
-
 static int
 register_client(const char *cmd __rte_unused,
 		const char *params __rte_unused,
@@ -77,15 +78,18 @@ static int
 register_client(const char *cmd __rte_unused, const char *params,
 		char *buffer __rte_unused, int buf_len __rte_unused)
 {
+#ifndef RTE_EXEC_ENV_WINDOWS
 	pthread_t th;
 	char data[BUF_SIZE];
 	int fd;
 	struct sockaddr_un addrs;
+#endif /* !RTE_EXEC_ENV_WINDOWS */
 
 	if (!strchr(params, ':')) {
 		fprintf(stderr, "Invalid data\n");
 		return -1;
 	}
+#ifndef RTE_EXEC_ENV_WINDOWS
 	strlcpy(data, strchr(params, ':'), sizeof(data));
 	memcpy(data, &data[strlen(":\"")], strlen(data));
 	if (!strchr(data, '\"')) {
@@ -109,9 +113,12 @@ register_client(const char *cmd __rte_unused, const char *params,
 	}
 	pthread_create(&th, NULL, &legacy_client_handler,
 			(void *)(uintptr_t)fd);
+#endif /* !RTE_EXEC_ENV_WINDOWS */
 	return 0;
 }
 
+#ifndef RTE_EXEC_ENV_WINDOWS
+
 static int
 send_error_response(int s, int err)
 {
@@ -239,3 +246,5 @@ legacy_client_handler(void *sock_id)
 	close(s);
 	return NULL;
 }
+
+#endif /* !RTE_EXEC_ENV_WINDOWS */
diff --git a/lib/meson.build b/lib/meson.build
index 283ee6c505..eb0cd9090a 100644
--- a/lib/meson.build
+++ b/lib/meson.build
@@ -38,6 +38,7 @@ libraries = [
 if is_windows
 	libraries = [
 		'kvargs',
+		'telemetry',
 		'eal',
 		'ring',
 		'mempool', 'mbuf', 'net', 'pci',
-- 
2.28.0