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Merge pull request #8479 from mjstapp/zlog_immediate

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David Lamparter 2021-05-03 10:40:54 +02:00 committed by GitHub
commit 9cd090488c
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4 changed files with 36 additions and 1 deletions
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6
doc/user/basic.rst
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@ -188,6 +188,12 @@ Basic Config Commands
This command clears all current filters in the log-filter table. Can be
daemon independent.
.. clicmd:: log immediate-mode
Use unbuffered output for log and debug messages; normally there is
some internal buffering.
.. clicmd:: service password-encryption
Encrypt password.

13
lib/log_vty.c
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@ -647,6 +647,18 @@ DEFPY (show_log_filter,
return CMD_SUCCESS;
}
/* Enable/disable 'immediate' mode, with no output buffering */
DEFPY (log_immediate_mode,
log_immediate_mode_cmd,
"[no] log immediate-mode",
NO_STR
"Logging control"
"Output immediately, without buffering")
{
zlog_set_immediate(!no);
return CMD_SUCCESS;
}
void log_config_write(struct vty *vty)
{
bool show_cmdline_hint = false;
@ -775,4 +787,5 @@ void log_cmd_init(void)
install_element(CONFIG_NODE, &log_filter_clear_cmd);
install_element(CONFIG_NODE, &config_log_filterfile_cmd);
install_element(CONFIG_NODE, &no_config_log_filterfile_cmd);
install_element(CONFIG_NODE, &log_immediate_mode_cmd);
}

15
lib/zlog.c
View File

@ -81,6 +81,11 @@ static gid_t zlog_gid = -1;
DECLARE_ATOMLIST(zlog_targets, struct zlog_target, head);
static struct zlog_targets_head zlog_targets;
/* Global setting for buffered vs immediate output. The default is
* per-pthread buffering.
*/
static bool default_immediate;
/* cf. zlog.h for additional comments on this struct.
*
* Note: you MUST NOT pass the format string + va_list to non-FRR format
@ -395,7 +400,7 @@ static void vzlog_tls(struct zlog_tls *zlog_tls, const struct xref_logmsg *xref,
struct zlog_msg *msg;
char *buf;
bool ignoremsg = true;
bool immediate = false;
bool immediate = default_immediate;
/* avoid further processing cost if no target wants this message */
rcu_read_lock();
@ -714,6 +719,14 @@ struct zlog_target *zlog_target_replace(struct zlog_target *oldzt,
return oldzt;
}
/*
* Enable or disable 'immediate' output - default is to buffer
* each pthread's messages.
*/
void zlog_set_immediate(bool set_p)
{
default_immediate = set_p;
}
/* common init */

3
lib/zlog.h
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@ -249,6 +249,9 @@ extern void zlog_tls_buffer_init(void);
extern void zlog_tls_buffer_flush(void);
extern void zlog_tls_buffer_fini(void);
/* Enable or disable 'immediate' output - default is to buffer messages. */
extern void zlog_set_immediate(bool set_p);
#ifdef __cplusplus
}
#endif