/*-
* BSD LICENSE
- *
+ *
* Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
* All rights reserved.
- *
+ *
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
- *
+ *
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
- *
+ *
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
#include <rte_launch.h>
#include <rte_common.h>
#include <rte_cycles.h>
-#include <rte_tailq.h>
#include <rte_eal.h>
#include <rte_per_lcore.h>
#include <rte_lcore.h>
struct log_cur_msg {
uint32_t loglevel; /**< log level - see rte_log.h */
uint32_t logtype; /**< log type - see rte_log.h */
-} __rte_cache_aligned;
-static struct log_cur_msg log_cur_msg[RTE_MAX_LCORE]; /**< per core log */
-
-/* early logs */
-
-/*
- * early log function, used during boot when mempool (hence log
- * history) is not available
- */
-static ssize_t
-early_log_write(__attribute__((unused)) void *c, const char *buf, size_t size)
-{
- ssize_t ret;
- ret = fwrite(buf, size, 1, stdout);
- fflush(stdout);
- if (ret == 0)
- return -1;
- return ret;
-}
-
-static ssize_t
-early_log_read(__attribute__((unused)) void *c,
- __attribute__((unused)) char *buf,
- __attribute__((unused)) size_t size)
-{
- return 0;
-}
-
-/*
- * this is needed because cookies_io_functions_t has a different
- * prototype between newlib and glibc
- */
-#ifdef RTE_EXEC_ENV_LINUXAPP
-static int
-early_log_seek(__attribute__((unused)) void *c,
- __attribute__((unused)) off64_t *offset,
- __attribute__((unused)) int whence)
-{
- return -1;
-}
-#else
-static int
-early_log_seek(__attribute__((unused)) void *c,
- __attribute__((unused)) _off_t *offset,
- __attribute__((unused)) int whence)
-{
- return -1;
-}
-#endif
-
-static int
-early_log_close(__attribute__((unused)) void *c)
-{
- return 0;
-}
-
-static cookie_io_functions_t early_log_func = {
- .read = early_log_read,
- .write = early_log_write,
- .seek = early_log_seek,
- .close = early_log_close
};
-static FILE *early_log_stream;
+
+ /* per core log */
+static RTE_DEFINE_PER_LCORE(struct log_cur_msg, log_cur_msg);
/* default logs */
/* get a buffer for adding in history */
if (log_history_size > RTE_LOG_HISTORY) {
hist_buf = STAILQ_FIRST(&log_history);
- STAILQ_REMOVE_HEAD(&log_history, next);
+ if (hist_buf) {
+ STAILQ_REMOVE_HEAD(&log_history, next);
+ log_history_size--;
+ }
}
else {
if (rte_mempool_mc_get(log_history_mp, &obj) < 0)
rte_logs.level = (uint32_t)level;
}
+/* Get global log level */
+uint32_t
+rte_get_log_level(void)
+{
+ return rte_logs.level;
+}
+
/* Set global log type */
void
rte_set_log_type(uint32_t type, int enable)
rte_logs.type &= (~type);
}
+/* Get global log type */
+uint32_t
+rte_get_log_type(void)
+{
+ return rte_logs.type;
+}
+
/* get the current loglevel for the message beeing processed */
int rte_log_cur_msg_loglevel(void)
{
- unsigned lcore_id;
- lcore_id = rte_lcore_id();
- return log_cur_msg[lcore_id].loglevel;
+ return RTE_PER_LCORE(log_cur_msg).loglevel;
}
/* get the current logtype for the message beeing processed */
int rte_log_cur_msg_logtype(void)
{
- unsigned lcore_id;
- lcore_id = rte_lcore_id();
- return log_cur_msg[lcore_id].logtype;
+ return RTE_PER_LCORE(log_cur_msg).logtype;
}
-/* Dump log history on console */
+/* Dump log history to file */
void
-rte_log_dump_history(void)
+rte_log_dump_history(FILE *out)
{
struct log_history_list tmp_log_history;
struct log_history *hist_buf;
rte_spinlock_lock(&log_list_lock);
tmp_log_history = log_history;
STAILQ_INIT(&log_history);
+ log_history_size = 0;
rte_spinlock_unlock(&log_list_lock);
for (i=0; i<RTE_LOG_HISTORY; i++) {
STAILQ_REMOVE_HEAD(&tmp_log_history, next);
/* write on stdout */
- if (fwrite(hist_buf->buf, hist_buf->size, 1, stdout) == 0) {
+ if (fwrite(hist_buf->buf, hist_buf->size, 1, out) == 0) {
rte_mempool_mp_put(log_history_mp, hist_buf);
break;
}
/* put back message structure in pool */
rte_mempool_mp_put(log_history_mp, hist_buf);
}
- fflush(stdout);
+ fflush(out);
rte_spinlock_unlock(&log_dump_lock);
}
* defined by the previous call to rte_openlog_stream().
*/
int
-rte_vlog(__attribute__((unused)) uint32_t level,
- __attribute__((unused)) uint32_t logtype,
- const char *format, va_list ap)
+rte_vlog(uint32_t level, uint32_t logtype, const char *format, va_list ap)
{
int ret;
FILE *f = rte_logs.file;
- unsigned lcore_id;
+
+ if ((level > rte_logs.level) || !(logtype & rte_logs.type))
+ return 0;
/* save loglevel and logtype in a global per-lcore variable */
- lcore_id = rte_lcore_id();
- log_cur_msg[lcore_id].loglevel = level;
- log_cur_msg[lcore_id].logtype = logtype;
+ RTE_PER_LCORE(log_cur_msg).loglevel = level;
+ RTE_PER_LCORE(log_cur_msg).logtype = logtype;
ret = vfprintf(f, format, ap);
fflush(f);
/*
* Generates a log message The message will be sent in the stream
* defined by the previous call to rte_openlog_stream().
+ * No need to check level here, done by rte_vlog().
*/
int
rte_log(uint32_t level, uint32_t logtype, const char *format, ...)
return ret;
}
-/*
- * init the log library, called by rte_eal_init() to enable early
- * logs
- */
-int
-rte_eal_log_early_init(void)
-{
- early_log_stream = fopencookie(NULL, "w+", early_log_func);
- if (early_log_stream == NULL) {
- printf("Cannot configure early_log_stream\n");
- return -1;
- }
- rte_openlog_stream(early_log_stream);
- return 0;
-}
-
/*
* called by environment-specific log init function to initialize log
* history
LOG_ELT_SIZE, 0, 0,
NULL, NULL,
NULL, NULL,
- SOCKET_ID_ANY, 0);
-
- if ((log_history_mp == NULL) &&
+ SOCKET_ID_ANY, MEMPOOL_F_NO_PHYS_CONTIG);
+
+ if ((log_history_mp == NULL) &&
((log_history_mp = rte_mempool_lookup(LOG_HISTORY_MP_NAME)) == NULL)){
RTE_LOG(ERR, EAL, "%s(): cannot create log_history mempool\n",
__func__);
default_log_stream = default_log;
rte_openlog_stream(default_log);
+
+#if RTE_LOG_LEVEL >= RTE_LOG_DEBUG
+ RTE_LOG(NOTICE, EAL, "Debug logs available - lower performance\n");
+#endif
+
return 0;
}
-