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| author | Ulrich Drepper <drepper@redhat.com> | 2008-06-13 16:31:07 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2008-06-13 16:31:07 +0000 |
| commit | a0edbb484a9b8988ba6996436d5abac0e572377f (patch) | |
| tree | 36edaf16d1bad57d85b8e8c0f336c820b1e2a71f /nscd/connections.c | |
| parent | 5bcc6c0f96789e52caa4ffdded7856472bb895e2 (diff) | |
| download | glibc-a0edbb484a9b8988ba6996436d5abac0e572377f.tar.gz glibc-a0edbb484a9b8988ba6996436d5abac0e572377f.tar.xz glibc-a0edbb484a9b8988ba6996436d5abac0e572377f.zip | |
* nscd/connections.c: Also recognize and handle changes to the
resolver configuration file.
Diffstat (limited to 'nscd/connections.c')
| -rw-r--r-- | nscd/connections.c | 28 |
1 files changed, 25 insertions, 3 deletions
diff --git a/nscd/connections.c b/nscd/connections.c index bef1c16d1e..bf07f5e791 100644 --- a/nscd/connections.c +++ b/nscd/connections.c @@ -51,6 +51,7 @@ #include "nscd.h" #include "dbg_log.h" #include "selinux.h" +#include <resolv/resolv.h> #ifdef HAVE_SENDFILE # include <kernel-features.h> #endif @@ -228,6 +229,9 @@ static int sock; #ifdef HAVE_INOTIFY /* Inotify descriptor. */ static int inotify_fd = -1; + +/* Watch descriptor for resolver configuration file. */ +static int resolv_conf_descr = -1; #endif /* Number of times clients had to wait. */ @@ -824,7 +828,7 @@ cannot set socket to close on exec: %s; disabling paranoia mode"), if (dbs[cnt].check_file) { #ifdef HAVE_INOTIFY - if (inotify_fd == -1 + if (inotify_fd < 0 || (dbs[cnt].inotify_descr = inotify_add_watch (inotify_fd, dbs[cnt].filename, IN_DELETE_SELF | IN_MODIFY)) < 0) @@ -845,6 +849,14 @@ cannot set socket to close on exec: %s; disabling paranoia mode"), dbs[cnt].file_mtime = st.st_mtime; } } + +#ifdef HAVE_INOTIFY + if (cnt == hstdb && inotify_fd >= -1) + /* We also monitor the resolver configuration file. */ + resolv_conf_descr = inotify_add_watch (inotify_fd, + _PATH_RESCONF, + IN_DELETE_SELF | IN_MODIFY); +#endif } /* Create the socket. */ @@ -1798,6 +1810,7 @@ main_loop_poll (void) { if (conns[1].revents != 0) { + bool done[lastdb] = { false, }; union { struct inotify_event i; @@ -1810,12 +1823,21 @@ main_loop_poll (void) { /* Check which of the files changed. */ for (size_t dbcnt = 0; dbcnt < lastdb; ++dbcnt) - if (inev.i.wd == dbs[dbcnt].inotify_descr) + if (!done[dbcnt] + && (inev.i.wd == dbs[dbcnt].inotify_descr + || (dbcnt == hstdb + && inev.i.wd == resolv_conf_descr))) { - pthread_mutex_trylock (&dbs[dbcnt].prune_lock); + if (dbcnt == hstdb + && inev.i.wd == resolv_conf_descr) + res_init (); + + pthread_mutex_lock (&dbs[dbcnt].prune_lock); dbs[dbcnt].clear_cache = 1; pthread_mutex_unlock (&dbs[dbcnt].prune_lock); pthread_cond_signal (&dbs[dbcnt].prune_cond); + + done[dbcnt] = true; break; } } |