/* vifm * Copyright (C) 2011 xaizek. * * 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 2 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, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA */ #include "log.h" #include <unistd.h> #include <errno.h> /* errno */ #include <stdarg.h> #include <stdio.h> /* stderr fprintf() */ #include <string.h> /* strerror() */ #include <time.h> #include "../compat/fs_limits.h" #include "../compat/os.h" #include "../status.h" #include "str.h" #include "utils.h" static FILE *log; static int verbosity; static void init(const char log_path[]); static void log_time(void); void init_logger(int verbosity_level, const char log_path[]) { verbosity = verbosity_level; if(verbosity > 0) { init(log_path); } } void reinit_logger(const char log_path[]) { if(verbosity <= 0) { return; } if(log != NULL) { log_time(); fprintf(log, " ===== Logger reinitialization to '%s' =====\n", log_path); fclose(log); } init(log_path); } static void init(const char log_path[]) { if(is_null_or_empty(log_path)) { return; } log = os_fopen(log_path, "a"); if(log == NULL) { if(curr_stats.load_stage == 0) { fprintf(stderr, "Failed to open log file (%s): %s\n", log_path, strerror(errno)); } return; } setvbuf(log, NULL, _IONBF, 0); fprintf(log, "\n"); log_time(); fprintf(log, " ===== Started vifm =====\n"); } void log_prefix(const char *file, const char *func, int line) { if(verbosity <= 0 || log == NULL) return; log_time(); fprintf(log, " at %s:%d (%s) in process #%lu\n", file, line, func, (long unsigned int)get_pid()); } void log_vifm_state(void) { if(verbosity <= 0 || log == NULL) return; fprintf(log, " Load stage: %d\n", curr_stats.load_stage); } void log_serror(const char *file, const char *func, int line, int no) { if(verbosity <= 0 || log == NULL) return; log_prefix(file, func, line); fprintf(log, " errno: %s\n", strerror(no)); } #ifdef _WIN32 void log_werror(const char *file, const char *func, int line, int no) { if(verbosity <= 0 || log == NULL) return; log_prefix(file, func, line); fprintf(log, " Windows error code: %d\n", no); } #endif void log_msg(const char *msg, ...) { va_list ap; if(verbosity <= 0 || log == NULL) { return; } va_start(ap, msg); fprintf(log, " "); vfprintf(log, msg, ap); fputc('\n', log); va_end(ap); } static void log_time(void) { time_t t; struct tm *tm_ptr; char buf[128]; t = time(NULL); tm_ptr = localtime(&t); strftime(buf, sizeof(buf), "%y.%m.%d %H:%M", tm_ptr); fprintf(log, "%s", buf); } void log_cwd(void) { char buf[PATH_MAX + 1]; if(verbosity <= 0 || log == NULL) return; if(os_getcwd(buf, sizeof(buf)) == NULL) log_msg("%s", "getwd() error"); else log_msg("getwd() returned \"%s\"", buf); } /* vim: set tabstop=2 softtabstop=2 shiftwidth=2 noexpandtab cinoptions-=(0 : */ /* vim: set cinoptions+=t0 filetype=c : */