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trace.c
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trace.c
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/*
* Copyright (C) 2007-2015 Lonelycoder AB
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
* This program is also available under a commercial proprietary license.
* For more information, contact [email protected]
*/
#include <stdio.h>
#include <limits.h>
#include <sys/stat.h>
#include <unistd.h>
#include <fcntl.h>
#include "main.h"
#include "prop/prop.h"
#include "misc/str.h"
#if ENABLE_NETLOG
#include <netinet/in.h>
#include <sys/socket.h>
#endif
static hts_mutex_t trace_mutex;
static prop_t *log_root;
static int entries;
#define UI_LOG_LINES 200
TAILQ_HEAD(trace_entry_queue, trace_entry);
SIMPLEQ_HEAD(tracetmp_queue, tracetmp);
typedef struct tracetmp {
SIMPLEQ_ENTRY(tracetmp) link;
const char *s1;
rstr_t *s2;
} tracetmp_t;
extern int trace_level;
static int trace_initialized;
static int log_fd;
static int64_t log_start_ts;
#if ENABLE_NETLOG
/**
*
*/
static void
trace_net_raw(const char *fmt, ...)
{
static int trace_fd = -1;
static int logport, logaddr;
static struct sockaddr_in log_server;
char msg[1000];
va_list ap;
if(trace_fd == -1 ||
logport != gconf.log_server_port ||
logaddr != gconf.log_server_ipv4) {
logport = gconf.log_server_port;
logaddr = gconf.log_server_ipv4;
if(logaddr == 0) {
if(trace_fd != -1) {
close(trace_fd);
}
return;
}
#if defined(__APPLE__)
log_server.sin_len = sizeof(log_server);
#endif
log_server.sin_family = AF_INET;
log_server.sin_port = htons(logport);
log_server.sin_addr.s_addr = logaddr;
trace_fd = socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP);
if(trace_fd == -1)
return;
}
if(trace_fd == -1)
return;
va_start(ap, fmt);
vsnprintf(msg, sizeof(msg), fmt, ap);
va_end(ap);
sendto(trace_fd, msg, strlen(msg), 0,
(struct sockaddr*)&log_server, sizeof(log_server));
}
/**
*
*/
static void
trace_net(int level, const char *prefix, const char *str)
{
const char *sgr;
switch(level) {
case TRACE_EMERG: sgr = "\033[31m"; break;
case TRACE_ERROR: sgr = "\033[31m"; break;
case TRACE_INFO: sgr = "\033[33m"; break;
case TRACE_DEBUG: sgr = "\033[32m"; break;
default: sgr = "\033[35m"; break;
}
trace_net_raw("%s%s %s\033[0m\n", sgr, prefix, str);
}
#endif
/**
*
*/
void
tracev(int flags, int level, const char *subsys, const char *fmt, va_list ap)
{
char buf2[64];
char buf3[64];
char *s, *p;
const char *leveltxt;
int l;
struct tracetmp_queue q;
tracetmp_t *tt;
SIMPLEQ_INIT(&q);
if(!trace_initialized)
return;
hts_mutex_lock(&trace_mutex);
switch(level) {
case TRACE_EMERG: leveltxt = "EMERG"; break;
case TRACE_ERROR: leveltxt = "ERROR"; break;
case TRACE_INFO: leveltxt = "INFO"; break;
case TRACE_DEBUG: leveltxt = "DEBUG"; break;
default: leveltxt = "?"; break;
}
char * const buf = fmtstrv(fmt, ap);
p = buf;
snprintf(buf2, sizeof(buf2), "%-15s [%-5s]:", subsys, leveltxt);
l = strlen(buf2);
while((s = strsep(&p, "\n")) != NULL) {
if(!*s)
continue; // Avoid empty lines
#if ENABLE_NETLOG
trace_net(level, buf2, s);
#endif
if(level <= gconf.trace_level)
trace_arch(level, buf2, s);
if(!(flags & TRACE_NO_PROP) && level != TRACE_EMERG) {
tt = alloca(sizeof(tracetmp_t));
tt->s1 = mystrdupa(buf2);
tt->s2 = rstr_alloc(s);
SIMPLEQ_INSERT_TAIL(&q, tt, link);
entries++;
}
if(log_fd != -1) {
int ts = (arch_get_ts() - log_start_ts) / 1000LL;
snprintf(buf3, sizeof(buf3), "%02d:%02d:%02d.%03d: ",
ts / 3600000,
(ts / 60000) % 60,
(ts / 1000) % 60,
ts % 1000);
if(write(log_fd, buf3, strlen(buf3)) != strlen(buf3) ||
write(log_fd, buf2, strlen(buf2)) != strlen(buf2) ||
write(log_fd, s, strlen(s)) != strlen(s) ||
write(log_fd, "\n", 1) != 1) {
close(log_fd);
log_fd = -1;
}
}
memset(buf2, ' ', l);
}
int zapcnt = 0;
if(entries > UI_LOG_LINES) {
zapcnt = entries - UI_LOG_LINES;
entries = UI_LOG_LINES;
}
hts_mutex_unlock(&trace_mutex);
rstr_t *rlev = rstr_alloc(leveltxt);
SIMPLEQ_FOREACH(tt, &q, link) {
prop_t *p = prop_create_root(NULL);
prop_set(p, "prefix", PROP_SET_STRING, tt->s1);
prop_set(p, "message", PROP_ADOPT_RSTRING, tt->s2);
prop_set(p, "severity", PROP_SET_RSTRING, rlev);
if(prop_set_parent(p, log_root))
abort();
}
rstr_release(rlev);
while(zapcnt > 0) {
prop_destroy_first(log_root);
zapcnt--;
}
free(buf);
}
/**
*
*/
void
trace(int flags, int level, const char *subsys, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
tracev(flags, level, subsys, fmt, ap);
va_end(ap);
}
/**
*
*/
void
hexdump(const char *pfx, const void *data_, int len)
{
int i, j;
const uint8_t *data = data_;
char buf[100];
for(i = 0; i < len; i+= 16) {
int p = snprintf(buf, sizeof(buf), "0x%06x: ", i);
for(j = 0; j + i < len && j < 16; j++) {
p += snprintf(buf + p, sizeof(buf) - p, "%s%02x ",
j==8 ? " " : "", data[i+j]);
}
const int cnt = (17 - j) * 3 + (j < 8);
memset(buf + p, ' ', cnt);
p += cnt;
for(j = 0; j + i < len && j < 16; j++)
buf[p++] = data[i+j] < 32 || data[i+j] > 126 ? '.' : data[i+j];
buf[p] = 0;
TRACE(TRACE_DEBUG, pfx, "%s", buf);
}
}
/**
*
*/
void
trace_fini(void)
{
hts_mutex_lock(&trace_mutex);
static const char logmark[] = "--MARK-- END\n";
if(write(log_fd, logmark, strlen(logmark))) {}
close(log_fd);
log_fd = -1;
hts_mutex_unlock(&trace_mutex);
}
/**
*
*/
void
trace_init(void)
{
char p1[PATH_MAX], p2[PATH_MAX];
int i;
if(!gconf.trace_level)
gconf.trace_level = TRACE_INFO;
snprintf(p1, sizeof(p1), "%s/log", gconf.cache_path);
mkdir(p1, 0777);
// Remove legacy logfile names. This can be removed some time in the future
for(i = 0; i <= 5; i++) {
snprintf(p1, sizeof(p1), "%s/log/showtime.log.%d", gconf.cache_path, i);
unlink(p1);
}
// Rotate logfiles
snprintf(p1, sizeof(p1), "%s/log/showtime-5.log", gconf.cache_path);
unlink(p1);
for(i = 4; i >= 0; i--) {
snprintf(p1, sizeof(p1), "%s/log/showtime-%d.log", gconf.cache_path,i);
snprintf(p2, sizeof(p2), "%s/log/showtime-%d.log", gconf.cache_path,i+1);
rename(p1, p2);
}
snprintf(p1, sizeof(p1), "%s/log/showtime-0.log", gconf.cache_path);
log_fd = open(p1, O_CREAT | O_TRUNC | O_WRONLY, 0644);
static const char logstartmark[] = "--MARK-- START\n";
if(write(log_fd, logstartmark, strlen(logstartmark)) !=
strlen(logstartmark)) {
close(log_fd);
log_fd = -1;
}
log_start_ts = arch_get_ts();
log_root = prop_create(prop_get_global(), "logbuffer");
hts_mutex_init(&trace_mutex);
trace_initialized = 1;
extern const char *htsversion_full;
TRACE(TRACE_INFO, "SYSTEM",
APPNAMEUSER" %s starting. %d CPU cores. Systemtype:%s OS:%s",
htsversion_full, gconf.concurrency,
arch_get_system_type(),
gconf.os_info[0] ? gconf.os_info : "<unknown>");
}