X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=man%2Fsd_journal_open.xml;h=182840e1df67fc403489139e400c0923b135c3c3;hp=ff089a88e03de792d44483f8fc389609b1853f24;hb=7699b6eb9859ef7fecb1a0e2e156d65ed7d86b2a;hpb=4a010f4e6e95964d7acaa33be768dbdb5e46d72a diff --git a/man/sd_journal_open.xml b/man/sd_journal_open.xml index ff089a88e..182840e1d 100644 --- a/man/sd_journal_open.xml +++ b/man/sd_journal_open.xml @@ -45,7 +45,13 @@ sd_journal_open sd_journal_open_directory + sd_journal_open_files sd_journal_close + sd_journal + SD_JOURNAL_LOCAL_ONLY + SD_JOURNAL_RUNTIME_ONLY + SD_JOURNAL_SYSTEM + SD_JOURNAL_CURRENT_USER Open the system journal for reading @@ -67,7 +73,14 @@ - int sd_journal_close + int sd_journal_open_files + sd_journal** ret + const char** paths + int flags + + + + void sd_journal_close sd_journal* j @@ -76,23 +89,27 @@ Description - sd_journal_open() opens the + sd_journal_open() opens the log journal for reading. It will find all journal files automatically and interleave them automatically when reading. As first argument it takes a pointer to a sd_journal pointer, which on - success will contain journal context afterwards. The + success will contain journal context object afterwards. The second argument is a flags field, which may consist of the following flags ORed together: SD_JOURNAL_LOCAL_ONLY makes sure only journal files generated on the local machine will be opened. SD_JOURNAL_RUNTIME_ONLY makes sure only volatile journal files will be opened, - excluding those which are stored on persistant - storage. SD_JOURNAL_SYSTEM_ONLY - will ensure that only journal files of system services - and the kernel (in opposition to user session processes) will - be opened. + excluding those which are stored on persistent + storage. SD_JOURNAL_SYSTEM + will cause journal files of system services and the + kernel (in opposition to user session processes) to + be opened. SD_JOURNAL_CURRENT_USER + will cause journal files of the current user to be + opened. If neither SD_JOURNAL_SYSTEM + nor SD_JOURNAL_CURRENT_USER are + specified, all journal file types will be opened. sd_journal_open_directory() is similar to sd_journal_open() @@ -102,6 +119,18 @@ flags argument, but it must be passed as 0 as no flags are currently understood for this call. + sd_journal_open_files() + is similar to sd_journal_open() + but takes a NULL-terminated list + of file paths to open. All files will be opened and + interleaved automatically. This call also takes a + flags argument, but it must be passed as 0 as no flags + are currently understood for this call. Please note + that in case of a live journal, this function is only + useful for debugging, because individual journal files + can be rotated at any moment, and the opening of + specific files in inherently racy. + sd_journal_close() will close the journal context allocated with sd_journal_open() or @@ -116,7 +145,7 @@ See sd_journal_next3 for an example how to iterate through the journal - after opening it it with + after opening it with sd_journal_open(). A journal context object returned by @@ -137,6 +166,10 @@ to it (or if the specific entry is not available locally, to its closest entry in time) sd_journal_seek_cursor3. + + Notification of journal changes is available via + sd_journal_get_fd() and related + calls. @@ -162,6 +195,27 @@ file. + + History + + sd_journal_open(), + sd_journal_close(), + SD_JOURNAL_LOCAL_ONLY, + SD_JOURNAL_RUNTIME_ONLY, + SD_JOURNAL_SYSTEM_ONLY were added + in systemd-38. + + sd_journal_open_directory() + was added in systemd-187. + + SD_JOURNAL_SYSTEM, + SD_JOURNAL_CURRENT_USER, + and sd_journal_open_files() + were added in systemd-205. + SD_JOURNAL_SYSTEM_ONLY + was deprecated. + + See Also