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CLI: Dropping the mechanism of echoing log messages
This is better done by running tail -f on a logfile.
This commit is contained in:
Maria Matejka
parent
8638c6f0b3
commit
88307c31c5
109
nest/cli.c
109
nest/cli.c
@ -160,43 +160,6 @@ cli_printf(cli *c, int code, char *msg, ...)
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memcpy(cli_alloc_out(c, size), buf, size);
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}
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static void
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cli_copy_message(cli *c)
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{
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byte *p, *q;
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uint cnt = 2;
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if (c->ring_overflow)
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{
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byte buf[64];
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int n = bsprintf(buf, "<%d messages lost>\n", c->ring_overflow);
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c->ring_overflow = 0;
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memcpy(cli_alloc_out(c, n), buf, n);
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}
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p = c->ring_read;
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while (*p)
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{
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cnt++;
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p++;
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if (p == c->ring_end)
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p = c->ring_buf;
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ASSERT(p != c->ring_write);
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}
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c->async_msg_size += cnt;
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q = cli_alloc_out(c, cnt);
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*q++ = '+';
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p = c->ring_read;
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do
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{
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*q = *p++;
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if (p == c->ring_end)
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p = c->ring_buf;
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}
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while (*q++);
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c->ring_read = p;
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q[-1] = '\n';
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}
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static void
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cli_hello(cli *c)
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{
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@ -283,10 +246,6 @@ cli_event(void *data)
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cli *c = data;
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int err;
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while (c->ring_read != c->ring_write &&
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c->async_msg_size < CLI_MAX_ASYNC_QUEUE)
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cli_copy_message(c);
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if (c->tx_pos)
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;
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else if (c->cont)
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@ -335,80 +294,12 @@ cli_kick(cli *c)
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static list cli_log_hooks;
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static int cli_log_inited;
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void
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cli_set_log_echo(cli *c, uint mask, uint size)
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{
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if (c->ring_buf)
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{
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mb_free(c->ring_buf);
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c->ring_buf = c->ring_end = c->ring_read = c->ring_write = NULL;
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rem_node(&c->n);
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}
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c->log_mask = mask;
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if (mask && size)
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{
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c->ring_buf = mb_alloc(c->pool, size);
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c->ring_end = c->ring_buf + size;
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c->ring_read = c->ring_write = c->ring_buf;
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add_tail(&cli_log_hooks, &c->n);
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c->log_threshold = size / 8;
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}
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c->ring_overflow = 0;
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}
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void
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cli_echo(uint class, byte *msg)
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{
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unsigned len, free, i, l;
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cli *c;
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byte *m;
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if (!cli_log_inited || EMPTY_LIST(cli_log_hooks))
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return;
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len = strlen(msg) + 1;
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WALK_LIST(c, cli_log_hooks)
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{
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if (!(c->log_mask & (1 << class)))
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continue;
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if (c->ring_read <= c->ring_write)
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free = (c->ring_end - c->ring_buf) - (c->ring_write - c->ring_read + 1);
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else
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free = c->ring_read - c->ring_write - 1;
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if ((len > free) ||
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(free < c->log_threshold && class < (unsigned) L_INFO[0]))
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{
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c->ring_overflow++;
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continue;
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}
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if (c->ring_read == c->ring_write)
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ev_schedule(c->event);
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m = msg;
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l = len;
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while (l)
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{
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if (c->ring_read <= c->ring_write)
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i = c->ring_end - c->ring_write;
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else
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i = c->ring_read - c->ring_write;
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if (i > l)
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i = l;
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memcpy(c->ring_write, m, i);
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m += i;
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l -= i;
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c->ring_write += i;
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if (c->ring_write == c->ring_end)
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c->ring_write = c->ring_buf;
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}
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}
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}
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/* Hack for scheduled undo notification */
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extern cli *cmd_reconfig_stored_cli;
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void
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cli_free(cli *c)
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{
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cli_set_log_echo(c, 0, 0);
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int defer = 0;
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if (c->cleanup)
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defer = c->cleanup(c);
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@ -40,9 +40,6 @@ typedef struct cli {
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int last_reply;
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int restricted; /* CLI is restricted to read-only commands */
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struct linpool *parser_pool; /* Pool used during parsing */
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byte *ring_buf; /* Ring buffer for asynchronous messages */
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byte *ring_end, *ring_read, *ring_write; /* Pointers to the ring buffer */
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uint ring_overflow; /* Counter of ring overflows */
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uint log_mask; /* Mask of allowed message levels */
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uint log_threshold; /* When free < log_threshold, store only important messages */
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uint async_msg_size; /* Total size of async messages queued in tx_buf */
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@ -57,7 +54,6 @@ extern struct cli *this_cli; /* Used during parsing */
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void cli_printf(cli *, int, char *, ...);
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#define cli_msg(x...) cli_printf(this_cli, x)
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void cli_set_log_echo(cli *, uint mask, uint size);
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static inline void cli_separator(cli *c)
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{ if (c->last_reply) cli_printf(c, -c->last_reply, ""); };
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@ -69,7 +65,6 @@ void cli_init(void);
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void cli_free(cli *);
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void cli_kick(cli *);
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void cli_written(cli *);
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void cli_echo(uint class, byte *msg);
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static inline int cli_access_restricted(void)
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{
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@ -143,7 +143,7 @@ CF_ENUM_PX(T_ENUM_AF, AF_, AFI_, IPV4, IPV6)
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%type <s> optproto
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%type <ra> r_args
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%type <sd> sym_args
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%type <i> proto_start echo_mask echo_size debug_mask debug_list debug_flag mrtdump_mask mrtdump_list mrtdump_flag export_mode limit_action net_type tos password_algorithm
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%type <i> proto_start debug_mask debug_list debug_flag mrtdump_mask mrtdump_list mrtdump_flag export_mode limit_action net_type tos password_algorithm
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%type <ps> proto_patt proto_patt2
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%type <cc> channel_start proto_channel
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%type <cl> limit_spec
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@ -892,26 +892,6 @@ CF_CLI(DUMP FILTER ALL,,, [[Dump all filters in linearized form]])
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CF_CLI(EVAL, term, <expr>, [[Evaluate an expression]])
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{ cmd_eval(f_linearize($2, 1)); } ;
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CF_CLI_HELP(ECHO, ..., [[Control echoing of log messages]])
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CF_CLI(ECHO, echo_mask echo_size, (all | off | { debug|trace|info|remote|warning|error|auth [, ...] }) [<buffer-size>], [[Control echoing of log messages]]) {
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cli_set_log_echo(this_cli, $2, $3);
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cli_msg(0, "");
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} ;
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echo_mask:
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ALL { $$ = ~0; }
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| OFF { $$ = 0; }
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| '{' log_mask_list '}' { $$ = $2; }
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;
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echo_size:
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/* empty */ { $$ = 4096; }
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| NUM {
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if ($1 < 256 || $1 > 65536) cf_error("Invalid log buffer size");
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$$ = $1;
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}
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;
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CF_CLI(DISABLE, proto_patt opttext, (<protocol> | \"<pattern>\" | all) [message], [[Disable protocol]])
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{ proto_apply_cmd($2, proto_cmd_disable, 1, (uintptr_t) $3); } ;
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CF_CLI(ENABLE, proto_patt opttext, (<protocol> | \"<pattern>\" | all) [message], [[Enable protocol]])
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@ -46,11 +46,6 @@ static pthread_mutex_t log_mutex;
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static inline void log_lock(void) { pthread_mutex_lock(&log_mutex); }
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static inline void log_unlock(void) { pthread_mutex_unlock(&log_mutex); }
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static pthread_t main_thread;
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void main_thread_init(void) { main_thread = pthread_self(); }
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static int main_thread_self(void) { return pthread_equal(pthread_self(), main_thread); }
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#ifdef HAVE_SYSLOG_H
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#include <sys/syslog.h>
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@ -195,10 +190,6 @@ log_commit(int class, buffer *buf)
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}
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log_unlock();
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/* cli_echo is not thread-safe, so call it just from the main thread */
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if (main_thread_self())
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cli_echo(class, buf->start);
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buf->pos = buf->start;
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}
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@ -951,9 +951,6 @@ main(int argc, char **argv)
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dup2(0, 2);
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}
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main_thread_init();
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write_pid_file();
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signal_init();
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@ -125,7 +125,6 @@ void krt_io_init(void);
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/* log.c */
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void main_thread_init(void);
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void log_init_debug(char *); /* Initialize debug dump to given file (NULL=stderr, ""=off) */
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void log_switch(int initial, list *l, const char *);
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