Merging upstream version 1.11.0+dfsg.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 0 insertions, 168 deletions

diff --git a/src/signals.c b/src/signals.c
deleted file mode 100644
index 331e80358..000000000
--- a/src/signals.c
+++ /dev/null
@@ -1,168 +0,0 @@
-#include "common.h"
-
-typedef enum signal_action {
-    NETDATA_SIGNAL_END_OF_LIST,
-    NETDATA_SIGNAL_IGNORE,
-    NETDATA_SIGNAL_EXIT_CLEANLY,
-    NETDATA_SIGNAL_SAVE_DATABASE,
-    NETDATA_SIGNAL_LOG_ROTATE,
-    NETDATA_SIGNAL_RELOAD_HEALTH,
-    NETDATA_SIGNAL_FATAL,
-} SIGNAL_ACTION;
-
-static struct {
-    int signo;              // the signal
-    const char *name;       // the name of the signal
-    size_t count;           // the number of signals received
-    SIGNAL_ACTION action;   // the action to take
-} signals_waiting[] = {
-        { SIGPIPE, "SIGPIPE", 0, NETDATA_SIGNAL_IGNORE        },
-        { SIGINT , "SIGINT",  0, NETDATA_SIGNAL_EXIT_CLEANLY  },
-        { SIGQUIT, "SIGQUIT", 0, NETDATA_SIGNAL_EXIT_CLEANLY  },
-        { SIGTERM, "SIGTERM", 0, NETDATA_SIGNAL_EXIT_CLEANLY  },
-        { SIGHUP,  "SIGHUP",  0, NETDATA_SIGNAL_LOG_ROTATE    },
-        { SIGUSR1, "SIGUSR1", 0, NETDATA_SIGNAL_SAVE_DATABASE },
-        { SIGUSR2, "SIGUSR2", 0, NETDATA_SIGNAL_RELOAD_HEALTH },
-        { SIGBUS,  "SIGBUS",  0, NETDATA_SIGNAL_FATAL         },
-
-        // terminator
-        { 0,       "NONE",    0, NETDATA_SIGNAL_END_OF_LIST   }
-};
-
-static void signal_handler(int signo) {
-    // find the entry in the list
-    int i;
-    for(i = 0; signals_waiting[i].action != NETDATA_SIGNAL_END_OF_LIST ; i++) {
-        if(unlikely(signals_waiting[i].signo == signo)) {
-            signals_waiting[i].count++;
-
-            if(signals_waiting[i].action == NETDATA_SIGNAL_FATAL) {
-                char buffer[200 + 1];
-                snprintfz(buffer, 200, "\nSIGNAL HANLDER: received: %s. Oops! This is bad!\n", signals_waiting[i].name);
-                if(write(STDERR_FILENO, buffer, strlen(buffer)) == -1) {
-                    // nothing to do - we cannot write but there is no way to complaint about it
-                    ;
-                }
-            }
-
-            return;
-        }
-    }
-}
-
-void signals_block(void) {
-    sigset_t sigset;
-    sigfillset(&sigset);
-
-    if(pthread_sigmask(SIG_BLOCK, &sigset, NULL) == -1)
-        error("SIGNAL: Could not block signals for threads");
-}
-
-void signals_unblock(void) {
-    sigset_t sigset;
-    sigfillset(&sigset);
-
-    if(pthread_sigmask(SIG_UNBLOCK, &sigset, NULL) == -1) {
-        error("SIGNAL: Could not unblock signals for threads");
-    }
-}
-
-void signals_init(void) {
-    // Catch signals which we want to use
-    struct sigaction sa;
-    sa.sa_flags = 0;
-
-    // ignore all signals while we run in a signal handler
-    sigfillset(&sa.sa_mask);
-
-    int i;
-    for (i = 0; signals_waiting[i].action != NETDATA_SIGNAL_END_OF_LIST; i++) {
-        if(signals_waiting[i].action == NETDATA_SIGNAL_IGNORE)
-            sa.sa_handler = SIG_IGN;
-        else
-            sa.sa_handler = signal_handler;
-
-        if(sigaction(signals_waiting[i].signo, &sa, NULL) == -1)
-            error("SIGNAL: Failed to change signal handler for: %s", signals_waiting[i].name);
-    }
-}
-
-void signals_reset(void) {
-    struct sigaction sa;
-    sigemptyset(&sa.sa_mask);
-    sa.sa_handler = SIG_DFL;
-    sa.sa_flags = 0;
-
-    int i;
-    for (i = 0; signals_waiting[i].action != NETDATA_SIGNAL_END_OF_LIST; i++) {
-        if(sigaction(signals_waiting[i].signo, &sa, NULL) == -1)
-            error("SIGNAL: Failed to reset signal handler for: %s", signals_waiting[i].name);
-    }
-}
-
-void signals_handle(void) {
-    while(1) {
-
-        // pause()  causes  the calling process (or thread) to sleep until a signal
-        // is delivered that either terminates the process or causes the invocation
-        // of a signal-catching function.
-        if(pause() == -1 && errno == EINTR) {
-
-            // loop once, but keep looping while signals are coming in
-            // this is needed because a few operations may take some time
-            // so we need to check for new signals before pausing again
-            int found = 1;
-            while(found) {
-                found = 0;
-
-                // execute the actions of the signals
-                int i;
-                for (i = 0; signals_waiting[i].action != NETDATA_SIGNAL_END_OF_LIST; i++) {
-                    if (signals_waiting[i].count) {
-                        found = 1;
-                        signals_waiting[i].count = 0;
-                        const char *name = signals_waiting[i].name;
-
-                        switch (signals_waiting[i].action) {
-                            case NETDATA_SIGNAL_RELOAD_HEALTH:
-                                error_log_limit_unlimited();
-                                info("SIGNAL: Received %s. Reloading HEALTH configuration...", name);
-                                health_reload();
-                                error_log_limit_reset();
-                                break;
-
-                            case NETDATA_SIGNAL_SAVE_DATABASE:
-                                error_log_limit_unlimited();
-                                info("SIGNAL: Received %s. Saving databases...", name);
-                                rrdhost_save_all();
-                                info("Databases saved.");
-                                error_log_limit_reset();
-                                break;
-
-                            case NETDATA_SIGNAL_LOG_ROTATE:
-                                error_log_limit_unlimited();
-                                info("SIGNAL: Received %s. Reopening all log files...", name);
-                                reopen_all_log_files();
-                                error_log_limit_reset();
-                                break;
-
-                            case NETDATA_SIGNAL_EXIT_CLEANLY:
-                                info("SIGNAL: Received %s. Cleaning up to exit...", name);
-                                netdata_cleanup_and_exit(0);
-                                exit(0);
-
-                            case NETDATA_SIGNAL_FATAL:
-                                fatal("SIGNAL: Received %s. netdata now exits.", name);
-
-                            default:
-                                info("SIGNAL: Received %s. No signal handler configured. Ignoring it.", name);
-                                break;
-                        }
-                    }
-                }
-            }
-        }
-        else
-            error("SIGNAL: pause() returned but it was not interrupted by a signal.");
-    }
-}