Magisk/jni/daemon/log_monitor.c
2017-04-22 17:12:54 +08:00

41 lines
1.0 KiB
C

/* log_monitor.c - New thread to monitor logcat
*
* Open a new thread to call logcat and get logs with tag "Magisk"
* Also, write the logs to a log file for debugging purpose
*
*/
#include <stdio.h>
#include <limits.h>
#include <pthread.h>
#include "magisk.h"
#include "utils.h"
#include "daemon.h"
static void *logger_thread(void *args) {
// Setup error handler
err_handler = exit_thread;
char buffer[PATH_MAX];
rename("/cache/magisk.log", "/cache/last_magisk.log");
FILE *logfile = xfopen("/cache/magisk.log", "w");
// Disable buffering
setbuf(logfile, NULL);
// Start logcat
char *const command[] = { "logcat", "-s", "Magisk", "-v", "time", NULL };
int fd;
run_command(&fd, "/system/bin/logcat", command);
while (fdgets(buffer, sizeof(buffer), fd)) {
fprintf(logfile, "%s", buffer);
}
return NULL;
}
/* Start a new thread to monitor logcat and dump to logfile */
void monitor_logs() {
pthread_t log_monitor_thread;
xpthread_create(&log_monitor_thread, NULL, logger_thread, NULL);
pthread_detach(log_monitor_thread);
}