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path: root/src/shared/log.c
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2013-07-24core: synchronously block when loggingLennart Poettering
Previously, the logging sockets were asynchronous and if clogged we'd lose messages. We did this to be extra careful given that PID 1 might need to spawn the logging daemon as response to PID 1's own log messages and we really should avoid a deadlock in that case. As it turns out this causes loss of too many messages, hence make the socket blocking again, however put a time limit on it to avoid unbounded deadlocks in the unlikely case they happen. https://bugs.freedesktop.org/show_bug.cgi?id=66664
2013-04-17core/main: use _cleanup_Zbigniew Jędrzejewski-Szmek
2013-04-05Use initalization instead of explicit zeroingZbigniew Jędrzejewski-Szmek
Before, we would initialize many fields twice: first by filling the structure with zeros, and then a second time with the real values. We can let the compiler do the job for us, avoiding one copy. A downside of this patch is that text gets slightly bigger. This is because all zero() calls are effectively inlined: $ size build/.libs/systemd text data bss dec hex filename before 897737 107300 2560 1007597 f5fed build/.libs/systemd after 897873 107300 2560 1007733 f6075 build/.libs/systemd … actually less than 1‰. A few asserts that the parameter is not null had to be removed. I don't think this changes much, because first, it is quite unlikely for the assert to fail, and second, an immediate SEGV is almost as good as an assert.
2013-04-02util: add a bit of syntactic sugar for saving/restoring errnoLennart Poettering
2013-02-27Revert "log: fix fallbacks to kmsg"Lennart Poettering
This reverts commit 4a01181e460686d8b4a543b1dfa7f77c9e3c5ab8. This patch broke LOG_TARGET_AUTO, i.e. automatic selection of STDERR if it is a TTY with a fallback on the journal and kmsg otherwise. The general rule should probably be: log_open() -- open the "best" possible logging channel according to log_target configuration. log_dispatch() -- don't open any log channels ever, with the exception of kmsg since that has no drawbacks. And do this only on true errors of the better log channel, not just when it wasn't opened.
2013-02-16log: fix fallbacks to kmsgMichal Schmidt
write_to_journal() returns 0 if journal_fd is closed and nothing is written. We need to make sure we'll try log_open_kmsg() then to make the fallback work for "journal-or-kmsg".
2013-01-18share/log: skip file/line/func info if emptyZbigniew Jędrzejewski-Szmek
The new microhttpd logger doesn't know this information. It is better to log nothing than fake values.
2013-01-18share/log: unify two code pathsZbigniew Jędrzejewski-Szmek
Explicit zeroing is replaced with initialization to {0}. No functional change.
2013-01-06journal: new logging macros to include UNIT=Zbigniew Jędrzejewski-Szmek
Adding UNIT= to log lines allows them to be shown in 'systemctl status' output, etc. A new set of macros and functions is added. This allows for less verbose notation than using log_struct() explicitly. The set of logging functions is expanded to take a pair of arguments (e.g. "UNIT=" and the RHS) which add an extra line to the structured log entry. This can be used to add macros which add a different identifier later on.
2012-09-24log: fix repeated invocation of vsnprintf()/vaprintf() in log_struct()Lennart Poettering
https://bugs.freedesktop.org/show_bug.cgi?id=55213
2012-09-21shared: call va_end in all casesLukas Nykryn
2012-09-17log: avoid function loopLennart Poettering
https://bugs.freedesktop.org/show_bug.cgi?id=54766
2012-09-17build-sys: __secure_getenv lost dunder in libc 2.17Zbigniew Jędrzejewski-Szmek
2012-09-03journal: suppress structured messages if they'd go to the consoleLennart Poettering
2012-09-03journal: generate structured journal messages for a number of eventsLennart Poettering
2012-09-03shared: in code that might get called from suid programs use ↵Lennart Poettering
__secure_getenv() rather than getenv() It's better to be safe than sorry.
2012-07-26log: out-of-line __log_oom()Michal Schmidt
The callers' code gets smaller.
2012-05-22log: make sure generators never log into the journal to avoid activation ↵Lennart Poettering
deadlocks This makes all generators log to kmsg by default.
2012-04-22log: include syslog identifier in default log properties, to avoid comm ↵Lennart Poettering
truncation
2012-04-20log: fix LOG_TARGET_JOURNAL_OR_KMSGLennart Poettering
2012-04-12relicense to LGPLv2.1 (with exceptions)Lennart Poettering
We finally got the OK from all contributors with non-trivial commits to relicense systemd from GPL2+ to LGPL2.1+. Some udev bits continue to be GPL2+ for now, but we are looking into relicensing them too, to allow free copy/paste of all code within systemd. The bits that used to be MIT continue to be MIT. The big benefit of the relicensing is that closed source code may now link against libsystemd-login.so and friends.
2012-04-10util: move all to shared/ and split external dependencies in separate ↵Kay Sievers
internal libraries Before: $ ldd /lib/systemd/systemd-timestamp linux-vdso.so.1 => (0x00007fffb05ff000) libselinux.so.1 => /lib64/libselinux.so.1 (0x00007f90aac57000) libcap.so.2 => /lib64/libcap.so.2 (0x00007f90aaa53000) librt.so.1 => /lib64/librt.so.1 (0x00007f90aa84a000) libc.so.6 => /lib64/libc.so.6 (0x00007f90aa494000) /lib64/ld-linux-x86-64.so.2 (0x00007f90aae90000) libdl.so.2 => /lib64/libdl.so.2 (0x00007f90aa290000) libattr.so.1 => /lib64/libattr.so.1 (0x00007f90aa08a000) libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f90a9e6e000) After: $ ldd systemd-timestamp linux-vdso.so.1 => (0x00007fff3cbff000) libselinux.so.1 => /lib64/libselinux.so.1 (0x00007f5eaa1c3000) librt.so.1 => /lib64/librt.so.1 (0x00007f5ea9fbb000) libc.so.6 => /lib64/libc.so.6 (0x00007f5ea9c04000) /lib64/ld-linux-x86-64.so.2 (0x00007f5eaa3fc000) libdl.so.2 => /lib64/libdl.so.2 (0x00007f5ea9a00000) libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f5ea97e4000)