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From: Stephen Hemminger <stephen@networkplumber.org>
To: dev@dpdk.org
Cc: Stephen Hemminger <stephen@networkplumber.org>,
=?UTF-8?q?Morten=20Br=C3=B8rup?= <mb@smartsharesystems.com>,
Bruce Richardson <bruce.richardson@intel.com>,
Chengwen Feng <fengchengwen@huawei.com>
Subject: [PATCH v28 09/13] log: add hook for printing log messages
Date: Thu, 24 Oct 2024 12:02:55 -0700
Message-ID: <20241024190818.172863-10-stephen@networkplumber.org>
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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>
Acked-by: Morten Brørup <mb@smartsharesystems.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Chengwen Feng <fengchengwen@huawei.com>
---
lib/log/log.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/lib/log/log.c b/lib/log/log.c
index feadcd6848..5e1eeb25c7 100644
--- a/lib/log/log.c
+++ b/lib/log/log.c
@@ -30,16 +30,21 @@ struct rte_log_dynamic_type {
uint32_t loglevel;
};
+/* Note: same as vfprintf() */
+typedef int (*log_print_t)(FILE *f, const char *fmt, 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 = vfprintf,
};
struct rte_eal_opt_loglevel {
@@ -76,6 +81,7 @@ int
rte_openlog_stream(FILE *f)
{
rte_logs.file = f;
+ rte_logs.print_func = vfprintf;
return 0;
}
@@ -472,7 +478,7 @@ 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, format, ap);
fflush(f);
return ret;
}
--
2.45.2