[sr-dev] git:master: core: -e - new cli parameter to enable colorful log messages
Elena-Ramona Modroiu
ramona at rosdev.ro
Sat Sep 1 16:26:40 CEST 2012
Module: sip-router
Branch: master
Commit: 6bda9c0b7aac195902d2c42123bdde007a9a687f
URL: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=6bda9c0b7aac195902d2c42123bdde007a9a687f
Author: Elena-Ramona Modroiu <ramona at asipto.com>
Committer: Elena-Ramona Modroiu <ramona at asipto.com>
Date: Sat Sep 1 16:16:21 2012 +0200
core: -e - new cli parameter to enable colorful log messages
- used only when log messages are printed to stderr
- each log level is printed in different color, using term colors (like
$C(xy) variable)
---
dprint.c | 203 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
dprint.h | 15 +++++
main.c | 19 +++++-
3 files changed, 235 insertions(+), 2 deletions(-)
diff --git a/dprint.c b/dprint.c
index 324d511..90dd110 100644
--- a/dprint.c
+++ b/dprint.c
@@ -140,3 +140,206 @@ void reset_local_debug_level(void)
{
_local_debug_level = UNSET_LOCAL_DEBUG_LEVEL;
}
+
+typedef struct log_level_color {
+ char f;
+ char b;
+} log_level_color_t;
+
+log_level_color_t _log_level_colors[L_MAX - L_MIN + 1];
+
+void dprint_init_colors(void)
+{
+ int i;
+
+ i = 0;
+
+ memset(_log_level_colors, 0,
+ (L_MAX - L_MIN + 1)*sizeof(log_level_color_t));
+
+ /* L_ALERT */
+ _log_level_colors[i].f = 'R'; /* default */
+ _log_level_colors[i].b = 'x'; /* default */
+ i++;
+
+ /* L_BUG */
+ _log_level_colors[i].f = 'P'; /* default */
+ _log_level_colors[i].b = 'x'; /* default */
+ i++;
+
+ /* L_CRIT2 */
+ _log_level_colors[i].f = 'y'; /* default */
+ _log_level_colors[i].b = 'x'; /* default */
+ i++;
+
+ /* L_CRIT */
+ _log_level_colors[i].f = 'b'; /* default */
+ _log_level_colors[i].b = 'x'; /* default */
+ i++;
+
+ /* L_ERR */
+ _log_level_colors[i].f = 'r'; /* default */
+ _log_level_colors[i].b = 'x'; /* default */
+ i++;
+
+ /* L_WARN */
+ _log_level_colors[i].f = 'p'; /* default */
+ _log_level_colors[i].b = 'x'; /* default */
+ i++;
+
+ /* L_NOTICE */
+ _log_level_colors[i].f = 'g'; /* default */
+ _log_level_colors[i].b = 'x'; /* default */
+ i++;
+
+ /* L_INFO */
+ _log_level_colors[i].f = 'c'; /* default */
+ _log_level_colors[i].b = 'x'; /* default */
+ i++;
+
+ /* L_DBG */
+ _log_level_colors[i].f = 'x'; /* default */
+ _log_level_colors[i].b = 'x'; /* default */
+ i++;
+}
+
+#define TERM_COLOR_SIZE 16
+
+#define dprint_termc_add(p, end, s) \
+ do{ \
+ if ((p)+(sizeof(s)-1)<=(end)){ \
+ memcpy((p), s, sizeof(s)-1); \
+ (p)+=sizeof(s)-1; \
+ }else{ \
+ /* overflow */ \
+ LM_ERR("dprint_termc_add overflow\n"); \
+ goto error; \
+ } \
+ } while(0)
+
+
+void dprint_term_color(char f, char b, str *obuf)
+{
+ static char term_color[TERM_COLOR_SIZE];
+ char* p;
+ char* end;
+
+ p = term_color;
+ end = p + TERM_COLOR_SIZE;
+
+ /* excape sequence */
+ dprint_termc_add(p, end, "\033[");
+
+ if(f!='_')
+ {
+ if (islower((int)f))
+ {
+ /* normal font */
+ dprint_termc_add(p, end, "0;");
+ } else {
+ /* bold font */
+ dprint_termc_add(p, end, "1;");
+ f += 32;
+ }
+ }
+
+ /* foreground */
+ switch(f)
+ {
+ case 'x':
+ dprint_termc_add(p, end, "39;");
+ break;
+ case 's':
+ dprint_termc_add(p, end, "30;");
+ break;
+ case 'r':
+ dprint_termc_add(p, end, "31;");
+ break;
+ case 'g':
+ dprint_termc_add(p, end, "32;");
+ break;
+ case 'y':
+ dprint_termc_add(p, end, "33;");
+ break;
+ case 'b':
+ dprint_termc_add(p, end, "34;");
+ break;
+ case 'p':
+ dprint_termc_add(p, end, "35;");
+ break;
+ case 'c':
+ dprint_termc_add(p, end, "36;");
+ break;
+ case 'w':
+ dprint_termc_add(p, end, "37;");
+ break;
+ default:
+ dprint_termc_add(p, end, "39;");
+ }
+
+ /* background */
+ switch(b)
+ {
+ case 'x':
+ dprint_termc_add(p, end, "49");
+ break;
+ case 's':
+ dprint_termc_add(p, end, "40");
+ break;
+ case 'r':
+ dprint_termc_add(p, end, "41");
+ break;
+ case 'g':
+ dprint_termc_add(p, end, "42");
+ break;
+ case 'y':
+ dprint_termc_add(p, end, "43");
+ break;
+ case 'b':
+ dprint_termc_add(p, end, "44");
+ break;
+ case 'p':
+ dprint_termc_add(p, end, "45");
+ break;
+ case 'c':
+ dprint_termc_add(p, end, "46");
+ break;
+ case 'w':
+ dprint_termc_add(p, end, "47");
+ break;
+ default:
+ dprint_termc_add(p, end, "49");
+ }
+
+ /* end */
+ dprint_termc_add(p, end, "m");
+
+ obuf->s = term_color;
+ obuf->len = p - term_color;
+ return;
+
+error:
+ obuf->s = term_color;
+ term_color[0] = '\0';
+ obuf->len = 0;
+}
+
+void dprint_color(int level)
+{
+ str obuf;
+
+ if(level<L_MIN || level>L_MAX)
+ return;
+ dprint_term_color(_log_level_colors[level - L_MIN].f,
+ _log_level_colors[level - L_MIN].b,
+ &obuf);
+ fprintf(stderr, "%.*s", obuf.len, obuf.s);
+}
+
+void dprint_color_reset(void)
+{
+ str obuf;
+
+ dprint_term_color('x', 'x', &obuf);
+ fprintf(stderr, "%.*s", obuf.len, obuf.s);
+}
diff --git a/dprint.h b/dprint.h
index 6898c9f..04179de 100644
--- a/dprint.h
+++ b/dprint.h
@@ -81,6 +81,7 @@
/*
* Log levels
*/
+#define L_MIN -5
#define L_ALERT -5
#define L_BUG -4
#define L_CRIT2 -3 /* like L_CRIT, but adds prefix */
@@ -90,6 +91,7 @@
#define L_NOTICE 1
#define L_INFO 2
#define L_DBG 3
+#define L_MAX 3
/** @brief This is the facility value used to indicate that the caller of the macro
* did not override the facility. Value 0 (the defaul) is LOG_KERN on Linux
@@ -109,6 +111,8 @@ extern int my_pid(void);
/** @brief non-zero if logging to stderr instead to the syslog */
extern int log_stderr;
+extern int log_color;
+
/** @brief maps log levels to their string name and corresponding syslog level */
struct log_level_info {
@@ -133,6 +137,9 @@ extern volatile int dprint_crit;
int str2facility(char *s);
int log_facility_fixup(void *handle, str *gname, str *name, void **val);
+void dprint_color(int level);
+void dprint_color_reset(void);
+void dprint_init_colors(void);
/** @brief
* General logging macros
@@ -175,10 +182,12 @@ int log_facility_fixup(void *handle, str *gname, str *name, void **val);
DPRINT_CRIT_ENTER; \
if (likely(((level) >= L_ALERT) && ((level) <= L_DBG))){ \
if (unlikely(log_stderr)) { \
+ if (unlikely(log_color)) dprint_color(level); \
fprintf(stderr, "%2d(%d) %s: %s" fmt, \
process_no, my_pid(), \
LOG_LEVEL2NAME(level), (prefix), \
__VA_ARGS__); \
+ if (unlikely(log_color)) dprint_color_reset(); \
} else { \
syslog(LOG2SYSLOG_LEVEL(level) | \
(((facility) != DEFAULT_FACILITY) ? \
@@ -189,9 +198,11 @@ int log_facility_fixup(void *handle, str *gname, str *name, void **val);
} \
} else { \
if (log_stderr) { \
+ if (unlikely(log_color)) dprint_color(level); \
fprintf(stderr, "%2d(%d) %s" fmt, \
process_no, my_pid(), \
(prefix), __VA_ARGS__); \
+ if (unlikely(log_color)) dprint_color_reset(); \
} else { \
if ((level)<L_ALERT) \
syslog(LOG2SYSLOG_LEVEL(L_ALERT) | \
@@ -237,10 +248,12 @@ int log_facility_fixup(void *handle, str *gname, str *name, void **val);
DPRINT_CRIT_ENTER; \
if (likely(((level) >= L_ALERT) && ((level) <= L_DBG))){ \
if (unlikely(log_stderr)) { \
+ if (unlikely(log_color)) dprint_color(level); \
fprintf(stderr, "%2d(%d) %s: %s" fmt, \
process_no, my_pid(), \
LOG_LEVEL2NAME(level), \
(prefix) , ## args);\
+ if (unlikely(log_color)) dprint_color_reset(); \
} else { \
syslog(LOG2SYSLOG_LEVEL(level) |\
(((facility) != DEFAULT_FACILITY) ? \
@@ -251,9 +264,11 @@ int log_facility_fixup(void *handle, str *gname, str *name, void **val);
} \
} else { \
if (log_stderr) { \
+ if (unlikely(log_color)) dprint_color(level); \
fprintf(stderr, "%2d(%d) %s" fmt, \
process_no, my_pid(), \
(prefix) , ## args); \
+ if (unlikely(log_color)) dprint_color_reset(); \
} else { \
if ((level)<L_ALERT) \
syslog(LOG2SYSLOG_LEVEL(L_ALERT) | \
diff --git a/main.c b/main.c
index ca272e1..cf3d665 100644
--- a/main.c
+++ b/main.c
@@ -229,7 +229,8 @@ Options:\n\
-d Debugging mode (multiple -d increase the level)\n\
-D no 1..do not fork (almost) anyway, 2..do not daemonize creator\n\
3..daemonize (default)\n\
- -E Log to stderr\n"
+ -E Log to stderr\n\
+ -e Log messages printed in terminal colors (requires -E)\n"
#ifdef USE_TCP
" -T Disable tcp\n\
-N Number of tcp child processes (default: equal to `-n')\n\
@@ -373,6 +374,7 @@ int sig_flag = 0; /* last signal received */
int dont_fork = 0;
int dont_daemonize = 0;
int log_stderr = 0;
+int log_color = 0;
/* set custom app name for syslog printing */
char *log_name = 0;
pid_t creator_pid = (pid_t) -1;
@@ -1854,8 +1856,11 @@ int main(int argc, char** argv)
dont_fork_cnt=0;
daemon_status_init();
+
+ dprint_init_colors();
+
/* command line options */
- options= ":f:cm:M:dVIhEb:l:L:n:vrRDTN:W:w:t:u:g:P:G:SQ:O:a:A:"
+ options= ":f:cm:M:dVIhEeb:l:L:n:vrRDTN:W:w:t:u:g:P:G:SQ:O:a:A:"
#ifdef STATS
"s:"
#endif
@@ -1878,6 +1883,9 @@ int main(int argc, char** argv)
case 'E':
log_stderr=1;
break;
+ case 'e':
+ log_color=1;
+ break;
case 'M':
pkg_mem_size=strtol(optarg, &tmp, 10) * 1024 * 1024;
if (tmp &&(*tmp)){
@@ -1972,6 +1980,9 @@ int main(int argc, char** argv)
case 'E':
/* ignore it, was parsed immediately after startup */
break;
+ case 'e':
+ /* ignore it, was parsed immediately after startup */
+ break;
case 'O':
scr_opt_lev=strtol(optarg, &tmp, 10);
if (tmp &&(*tmp)){
@@ -2128,6 +2139,10 @@ try_again:
log_stderr=1; /* use in both getopt switches,
takes priority over config */
break;
+ case 'e':
+ log_color=1; /* use in both getopt switches,
+ takes priority over config */
+ break;
case 'b':
maxbuffer=strtol(optarg, &tmp, 10);
if (tmp &&(*tmp)){
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