polardbxengine/plugin/innodb_memcached/daemon_memcached/extensions/daemon/stdin_check.c

60 lines
1.4 KiB
C

/* -*- Mode: C; tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*- */
#include <stdio.h>
#include <stdlib.h>
#include <pthread.h>
#include "protocol_extension.h"
union c99hack {
void *pointer;
void (*exit_function)(void);
};
static void* check_stdin_thread(void* arg)
{
pthread_detach(pthread_self());
while (!feof(stdin)) {
getc(stdin);
}
fprintf(stderr, "EOF on stdin. Exiting\n");
union c99hack ch = { .pointer = arg };
ch.exit_function();
/* NOTREACHED */
return NULL;
}
static const char *get_name(void) {
return "stdin_check";
}
static EXTENSION_DAEMON_DESCRIPTOR descriptor = {
.get_name = get_name
};
MEMCACHED_PUBLIC_API
EXTENSION_ERROR_CODE memcached_extensions_initialize(const char *config,
GET_SERVER_API get_server_api) {
SERVER_HANDLE_V1 *server = get_server_api();
if (server == NULL) {
return EXTENSION_FATAL;
}
if (!server->extension->register_extension(EXTENSION_DAEMON, &descriptor)) {
return EXTENSION_FATAL;
}
union c99hack ch = { .exit_function = server->core->shutdown };
pthread_t t;
if (pthread_create(&t, NULL, check_stdin_thread, ch.pointer) != 0) {
perror("couldn't create stdin checking thread.");
server->extension->unregister_extension(EXTENSION_DAEMON, &descriptor);
return EXTENSION_FATAL;
}
return EXTENSION_SUCCESS;
}