From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <dev-bounces@dpdk.org>
Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124])
	by inbox.dpdk.org (Postfix) with ESMTP id 51BD843D4E;
	Tue, 26 Mar 2024 02:59:35 +0100 (CET)
Received: from mails.dpdk.org (localhost [127.0.0.1])
	by mails.dpdk.org (Postfix) with ESMTP id 09BEE40DC9;
	Tue, 26 Mar 2024 02:58:55 +0100 (CET)
Received: from mail-oa1-f49.google.com (mail-oa1-f49.google.com
 [209.85.160.49]) by mails.dpdk.org (Postfix) with ESMTP id 49C4D40DFB
 for <dev@dpdk.org>; Tue, 26 Mar 2024 02:58:48 +0100 (CET)
Received: by mail-oa1-f49.google.com with SMTP id
 586e51a60fabf-22a639aedb6so78112fac.3
 for <dev@dpdk.org>; Mon, 25 Mar 2024 18:58:48 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
 d=networkplumber-org.20230601.gappssmtp.com; s=20230601; t=1711418327;
 x=1712023127; darn=dpdk.org; 
 h=content-transfer-encoding:mime-version:references:in-reply-to
 :message-id:date:subject:cc:to:from:from:to:cc:subject:date
 :message-id:reply-to;
 bh=zu4Y35qfKTRMkWDem+dq2ZFz0NT/aAm4UNjlX7qaan4=;
 b=xfr9GGpW+m4ZcIkUaGni30cMeql/PTaerJGKogSvGTBnM51YuBqq5IJ8NvruKwhgyB
 s0JLL6nOLHkVI1/rqZUxOkBObpynC+wahFGxBK25WvycBgrBFiG7ou1wuOXYv+4SkCL+
 ZEA0jwOz1eY583cdRvnR6pyeMqYUuTFWpMo5fpGBRtT+zcu7n/AUHX/y2Bea27N5kyEo
 zapa0eVBuBHe3+FjVyhEaw06NuzQvQicMhyqdbJluBNdkcNRq1Dshfpu+A7zOSOqMzCv
 cSPNE7EtIYqbyEX6dsCMfdAIbLHxD1LJQbmYsJCKkrIdrGZ7MzZ97uvxlYg3bfm2/mQl
 ACGg==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
 d=1e100.net; s=20230601; t=1711418327; x=1712023127;
 h=content-transfer-encoding:mime-version:references:in-reply-to
 :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc
 :subject:date:message-id:reply-to;
 bh=zu4Y35qfKTRMkWDem+dq2ZFz0NT/aAm4UNjlX7qaan4=;
 b=G4LEKc30BN7439NfOHhuHarOE9cdYHaGEKvRixacHzmCOFh+YabG3yBLo73pz4N1CV
 TCq5EWD745psZR0rryR7DkvRzy9Ak5yAJuvTfRFsu/jT1mwXEzMfNUiffLd41swqx6ZT
 cRKNLfryzREaUThENzZa7Y7RBpn0NMT/Pjzw77ryNCFnmAvjlOr3zY2IPN3Oijz5X2ar
 sOPpIadTh6h78pDWuuYXIeffZbkyFI42vC0M75OJQEvWn4herJ6pJeTXObHI7OHVplCt
 8atxwlQ9IKQHFQiUmIBOz+2LZ9YDXMtdk65mDnj5O6wQ5LCi4l4Od6X+LLJYB3EvfTio
 MhYA==
X-Gm-Message-State: AOJu0Ywz2ugZfNzp92VhwzY+r4QrG5aJgAvudT+yGXIrodDnhI+0vgoQ
 SyH6IZ0mgaaKuNvRJ7i7U5wyiGxPbzdB3MFEJ/WVrhc1JVy/XoxEoiBCn86ygmrRBIUMsE8lE+V
 p
X-Google-Smtp-Source: AGHT+IFMcsG2OplwAnkb63rkcN3GpjP7iy6ZFyS8JQKWFySkowbnOvOrcrdVRZfJc9SEWwYtflpxsA==
X-Received: by 2002:a05:6871:3426:b0:22a:5423:45ff with SMTP id
 nh38-20020a056871342600b0022a542345ffmr2857019oac.40.1711418327572; 
 Mon, 25 Mar 2024 18:58:47 -0700 (PDT)
Received: from hermes.local (204-195-123-203.wavecable.com. [204.195.123.203])
 by smtp.gmail.com with ESMTPSA id
 u19-20020a63d353000000b005dc88b232a5sm6571541pgi.26.2024.03.25.18.58.47
 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);
 Mon, 25 Mar 2024 18:58:47 -0700 (PDT)
From: Stephen Hemminger <stephen@networkplumber.org>
To: dev@dpdk.org
Cc: Stephen Hemminger <stephen@networkplumber.org>
Subject: [PATCH v13 09/11] log: add hook for printing log messages
Date: Mon, 25 Mar 2024 18:57:04 -0700
Message-ID: <20240326015827.825648-10-stephen@networkplumber.org>
X-Mailer: git-send-email 2.43.0
In-Reply-To: <20240326015827.825648-1-stephen@networkplumber.org>
References: <20200814173441.23086-1-stephen@networkplumber.org>
 <20240326015827.825648-1-stephen@networkplumber.org>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
X-BeenThere: dev@dpdk.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: DPDK patches and discussions <dev.dpdk.org>
List-Unsubscribe: <https://mails.dpdk.org/options/dev>,
 <mailto:dev-request@dpdk.org?subject=unsubscribe>
List-Archive: <http://mails.dpdk.org/archives/dev/>
List-Post: <mailto:dev@dpdk.org>
List-Help: <mailto:dev-request@dpdk.org?subject=help>
List-Subscribe: <https://mails.dpdk.org/listinfo/dev>,
 <mailto:dev-request@dpdk.org?subject=subscribe>
Errors-To: dev-bounces@dpdk.org

This is useful for when decorating log output for console
or journal. Provide basic version in this patch.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 lib/log/log.c | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/lib/log/log.c b/lib/log/log.c
index f597da2e39..acd4c320b6 100644
--- a/lib/log/log.c
+++ b/lib/log/log.c
@@ -26,16 +26,21 @@ struct rte_log_dynamic_type {
 	uint32_t loglevel;
 };
 
+typedef int (*log_print_t)(FILE *f, uint32_t level, const char *fmt, va_list ap);
+static int log_print(FILE *f, uint32_t level, const char *format, va_list ap);
+
 /** The rte_log structure. */
 static struct rte_logs {
 	uint32_t type;  /**< Bitfield with enabled logs. */
 	uint32_t level; /**< Log level. */
 	FILE *file;     /**< Output file set by rte_openlog_stream, or NULL. */
+	log_print_t print_func;
 	size_t dynamic_types_len;
 	struct rte_log_dynamic_type *dynamic_types;
 } rte_logs = {
 	.type = UINT32_MAX,
 	.level = RTE_LOG_DEBUG,
+	.print_func = log_print,
 };
 
 struct rte_eal_opt_loglevel {
@@ -78,6 +83,7 @@ rte_openlog_stream(FILE *f)
 		fclose(rte_logs.file);
 
 	rte_logs.file = f;
+	rte_logs.print_func = log_print;
 	return 0;
 }
 
@@ -484,7 +490,7 @@ rte_vlog(uint32_t level, uint32_t logtype, const char *format, va_list ap)
 	RTE_PER_LCORE(log_cur_msg).loglevel = level;
 	RTE_PER_LCORE(log_cur_msg).logtype = logtype;
 
-	ret = vfprintf(f, format, ap);
+	ret = (*rte_logs.print_func)(f, level, format, ap);
 	fflush(f);
 	return ret;
 }
@@ -513,6 +519,15 @@ eal_log_syslog(const char *mode __rte_unused)
 	return -1;
 }
 
+/* default log print function */
+__rte_format_printf(3, 0)
+static int
+log_print(FILE *f, uint32_t level __rte_unused,
+	  const char *format, va_list ap)
+{
+	return vfprintf(f, format, ap);
+}
+
 /*
  * Called by rte_eal_init
  */
-- 
2.43.0