Add __attribute__((const, pure, format)) in various places

[elogind.git] / src / shared / log.h

diff --git a/src/shared/log.h b/src/shared/log.h
index 3283808ff88cbdc3c201d06a96693e598cc4c94b..979f833d571a8c7a11307714d3194ce017392bef 100644 (file)
--- a/src/shared/log.h
+++ b/src/shared/log.h
@@ -1,7 +1,6 @@
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
 
-#ifndef foologhfoo
-#define foologhfoo
+#pragma once
 
 /***
   This file is part of systemd.
@@ -9,24 +8,26 @@
   Copyright 2010 Lennart Poettering
 
   systemd 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
+  under the terms of the GNU Lesser General Public License as published by
+  the Free Software Foundation; either version 2.1 of the License, or
   (at your option) any later version.
 
   systemd 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.
+  Lesser General Public License for more details.
 
-  You should have received a copy of the GNU General Public License
+  You should have received a copy of the GNU Lesser General Public License
   along with systemd; If not, see <http://www.gnu.org/licenses/>.
 ***/
 
 #include <syslog.h>
 #include <stdbool.h>
 #include <stdarg.h>
+#include <errno.h>
 
 #include "macro.h"
+#include "sd-id128.h"
 
 typedef enum LogTarget{
         LOG_TARGET_CONSOLE,
@@ -36,6 +37,7 @@ typedef enum LogTarget{
         LOG_TARGET_SYSLOG,
         LOG_TARGET_SYSLOG_OR_KMSG,
         LOG_TARGET_AUTO, /* console if stderr is tty, JOURNAL_OR_KMSG otherwise */
+        LOG_TARGET_SAFE, /* console if stderr is tty, KMSG otherwise */
         LOG_TARGET_NULL,
         _LOG_TARGET_MAX,
         _LOG_TARGET_INVALID = -1
@@ -54,8 +56,8 @@ void log_show_location(bool b);
 int log_show_color_from_string(const char *e);
 int log_show_location_from_string(const char *e);
 
-LogTarget log_get_target(void);
-int log_get_max_level(void);
+LogTarget log_get_target(void) _pure_;
+int log_get_max_level(void) _pure_;
 
 int log_open(void);
 void log_close(void);
@@ -69,30 +71,70 @@ void log_close_console(void);
 void log_parse_environment(void);
 
 int log_meta(
-        int level,
-        const char*file,
-        int line,
-        const char *func,
-        const char *format, ...) _printf_attr_(5,6);
+                int level,
+                const char*file,
+                int line,
+                const char *func,
+                const char *format, ...) _printf_attr_(5,6);
 
 int log_metav(
-        int level,
-        const char*file,
-        int line,
-        const char *func,
-        const char *format,
-        va_list ap);
-
-_noreturn_ void log_assert_failed(const char *text, const char *file, int line, const char *func);
-_noreturn_ void log_assert_failed_unreachable(const char *text, const char *file, int line, const char *func);
+                int level,
+                const char*file,
+                int line,
+                const char *func,
+                const char *format,
+                va_list ap) _printf_attr_(5,0);
+
+int log_meta_object(
+                int level,
+                const char*file,
+                int line,
+                const char *func,
+                const char *object_name,
+                const char *object,
+                const char *format, ...) _printf_attr_(7,8);
+
+int log_metav_object(
+                int level,
+                const char*file,
+                int line,
+                const char *func,
+                const char *object_name,
+                const char *object,
+                const char *format,
+                va_list ap) _printf_attr_(7,0);
+
+int log_struct_internal(
+                int level,
+                const char *file,
+                int line,
+                const char *func,
+                const char *format, ...) _printf_attr_(5,0) _sentinel_;
+
+int log_oom_internal(
+                const char *file,
+                int line,
+                const char *func);
 
 /* This modifies the buffer passed! */
 int log_dump_internal(
-        int level,
-        const char*file,
-        int line,
-        const char *func,
-        char *buffer);
+                int level,
+                const char*file,
+                int line,
+                const char *func,
+                char *buffer);
+
+_noreturn_ void log_assert_failed(
+                const char *text,
+                const char *file,
+                int line,
+                const char *func);
+
+_noreturn_ void log_assert_failed_unreachable(
+                const char *text,
+                const char *file,
+                int line,
+                const char *func);
 
 #define log_full(level, ...) log_meta(level,   __FILE__, __LINE__, __func__, __VA_ARGS__)
 
@@ -102,10 +144,16 @@ int log_dump_internal(
 #define log_warning(...) log_meta(LOG_WARNING, __FILE__, __LINE__, __func__, __VA_ARGS__)
 #define log_error(...)   log_meta(LOG_ERR,     __FILE__, __LINE__, __func__, __VA_ARGS__)
 
+#define log_struct(level, ...) log_struct_internal(level, __FILE__, __LINE__, __func__, __VA_ARGS__)
+
+#define log_oom() log_oom_internal(__FILE__, __LINE__, __func__)
+
 /* This modifies the buffer passed! */
 #define log_dump(level, buffer) log_dump_internal(level, __FILE__, __LINE__, __func__, buffer)
 
-const char *log_target_to_string(LogTarget target);
-LogTarget log_target_from_string(const char *s);
+bool log_on_console(void) _pure_;
+
+const char *log_target_to_string(LogTarget target) _const_;
+LogTarget log_target_from_string(const char *s) _pure_;
 
-#endif
+#define MESSAGE_ID(x) "MESSAGE_ID=" SD_ID128_FORMAT_STR, SD_ID128_FORMAT_VAL(x)