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/*******************************************************************************
* Copyright (c) 2007, 2012 Wind River Systems, Inc. and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* and Eclipse Distribution License v1.0 which accompany this distribution.
* The Eclipse Public License is available at
* http://www.eclipse.org/legal/epl-v10.html
* and the Eclipse Distribution License is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
* You may elect to redistribute this code under either of these licenses.
*
* Contributors:
* Wind River Systems - initial API and implementation
*******************************************************************************/
#include <tcf/config.h>
#include <tcf/framework/trace.h>
int log_mode = LOG_EVENTS | LOG_CHILD | LOG_WAITPID | LOG_CONTEXT | LOG_PROTOCOL;
#if ENABLE_Trace
#include <stdlib.h>
#include <stdarg.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <tcf/framework/mdep-threads.h>
#if defined(_WIN32)
#elif defined(_WRS_KERNEL)
#elif defined(__SYMBIAN32__)
#else
#include <syslog.h>
#endif
FILE * log_file = NULL;
#define MAX_TRACE_MODES 40
struct trace_mode trace_mode_table[MAX_TRACE_MODES + 1] = {
{ LOG_ALLOC, "alloc", "memory allocation and deallocation" },
{ LOG_EVENTCORE, "eventcore", "main event queue" },
{ LOG_WAITPID, "waitpid", "waitpid() events" },
{ LOG_EVENTS, "events", "low-level debugger events" },
{ LOG_PROTOCOL, "protocol", "communication protocol" },
{ LOG_CONTEXT, "context", "debug context actions" },
{ LOG_CHILD, "children", "debug context children" },
{ LOG_DISCOVERY, "discovery", "discovery" },
{ LOG_ASYNCREQ, "asyncreq", "async I/O" },
{ LOG_PROXY, "proxy", "proxy state" },
{ LOG_TCFLOG, "tcflog", "proxy traffic" },
{ LOG_ELF, "elf", "ELF reader" },
{ LOG_LUA, "lua", "LUA interpreter" },
{ LOG_STACK, "stack", "stack trace service" },
{ LOG_PLUGIN, "plugin", "plugins" }
};
static pthread_mutex_t mutex;
int print_trace(int mode, const char * fmt, ...) {
va_list ap;
int error = errno;
if (log_file == NULL) return 0;
if (mode != LOG_ALWAYS && (log_mode & mode) == 0) return 0;
va_start(ap, fmt);
if (is_daemon()) {
#if defined(_WIN32)
#elif defined(_WRS_KERNEL)
#elif defined(__SYMBIAN32__)
#else
vsyslog(LOG_MAKEPRI(LOG_DAEMON, LOG_INFO), fmt, ap);
#endif
}
else {
struct timespec timenow;
if (clock_gettime(CLOCK_REALTIME, &timenow)) {
perror("clock_gettime");
exit(1);
}
if ((errno = pthread_mutex_lock(&mutex)) != 0) {
perror("pthread_mutex_lock");
exit(1);
}
fprintf(log_file, "TCF %02d:%02d.%03d: ",
(int)(timenow.tv_sec / 60 % 60),
(int)(timenow.tv_sec % 60),
(int)(timenow.tv_nsec / 1000000));
vfprintf(log_file, fmt, ap);
fprintf(log_file, "\n");
fflush(log_file);
if ((errno = pthread_mutex_unlock(&mutex)) != 0) {
perror("pthread_mutex_unlock");
exit(1);
}
}
va_end(ap);
errno = error;
return 1;
}
#endif /* ENABLE_Trace */
int parse_trace_mode(const char * mode, int * result) {
#if ENABLE_Trace
int rval = 0;
*result = 0;
if (*mode == '\0') return 0;
for(;;) {
if (*mode >= '0' && *mode <= '9') {
char * endptr;
*result |= (int) strtoul(mode, &endptr, 0);
mode = endptr;
}
else {
struct trace_mode *entry;
const char * endptr = mode;
while (*endptr != '\0' && *endptr != ',') endptr++;
for (entry = trace_mode_table; entry->mode; entry++) {
if (strncmp(mode, entry->name, endptr - mode) == 0 &&
entry->name[endptr - mode] == '\0')
break;
}
if (entry->mode == 0) rval = 1;
*result |= entry->mode;
mode = endptr;
}
if (*mode != ',') break;
mode++;
}
if (*mode != '\0') return 1;
return rval;
#else
*result = 0;
return 0;
#endif /* ENABLE_Trace */
}
int add_trace_mode(int mode, const char * name, const char * description) {
#if ENABLE_Trace
int i;
int busy = 0;
for (i = 0; i < MAX_TRACE_MODES; i++) {
if (trace_mode_table[i].mode == 0) {
if (mode == 0) {
/* Set mode to first unused bit. */
mode = ~busy;
if (mode == 0) break;
mode &= ~(mode - 1);
}
trace_mode_table[i].mode = mode;
trace_mode_table[i].name = name;
trace_mode_table[i].description = description;
return mode;
}
busy |= trace_mode_table[i].mode;
}
#endif /* ENABLE_Trace */
return 0;
}
void open_log_file(const char * log_name) {
#if ENABLE_Trace
if (log_name == NULL) {
log_file = NULL;
}
else if (strcmp(log_name, LOG_NAME_STDERR) == 0) {
log_file = stderr;
}
else if ((log_file = fopen(log_name, "a")) == NULL) {
fprintf(stderr, "TCF: error: cannot create log file %s\n", log_name);
exit(1);
}
#endif /* ENABLE_Trace */
}
void ini_trace(void) {
#if ENABLE_Trace
if ((errno = pthread_mutex_init(&mutex, NULL)) != 0) {
perror("pthread_mutex_init");
exit(1);
}
#endif /* ENABLE_Trace */
}
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