From 929f52632bc899ae9bd6932b667008f35acd25e4 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= Date: Wed, 21 Mar 2018 16:32:17 +0100 Subject: man: move examples out of sd_journal_get_fd into separate files man/.dir-locals is to keep indentation under control. This makes it much easier to compile and run those examples, c.f. #7578. v2: - copy more of .dir-locals.el from the root to man/.dir-locals.el (I though emacs would inherit from the one in the parent dir, but it seems it just uses its own broken defaults, including indent-tabs-mode by default.) --- man/journal-iterate-wait.c | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 man/journal-iterate-wait.c (limited to 'man/journal-iterate-wait.c') diff --git a/man/journal-iterate-wait.c b/man/journal-iterate-wait.c new file mode 100644 index 0000000000..0a23569f79 --- /dev/null +++ b/man/journal-iterate-wait.c @@ -0,0 +1,39 @@ +#include +#include +#include + +int main(int argc, char *argv[]) { + int r; + sd_journal *j; + r = sd_journal_open(&j, SD_JOURNAL_LOCAL_ONLY); + if (r < 0) { + fprintf(stderr, "Failed to open journal: %s\n", strerror(-r)); + return 1; + } + for (;;) { + const void *d; + size_t l; + r = sd_journal_next(j); + if (r < 0) { + fprintf(stderr, "Failed to iterate to next entry: %s\n", strerror(-r)); + break; + } + if (r == 0) { + /* Reached the end, let's wait for changes, and try again */ + r = sd_journal_wait(j, (uint64_t) -1); + if (r < 0) { + fprintf(stderr, "Failed to wait for changes: %s\n", strerror(-r)); + break; + } + continue; + } + r = sd_journal_get_data(j, "MESSAGE", &d, &l); + if (r < 0) { + fprintf(stderr, "Failed to read message field: %s\n", strerror(-r)); + continue; + } + printf("%.*s\n", (int) l, (const char*) d); + } + sd_journal_close(j); + return 0; +} -- cgit v1.2.1