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or_die.c
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or_die.c
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/*
* Copyright 2016 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "common.h"
#include "or_die.h"
/* Simple syscall wrappers to be used when errors are fatal to the caller. */
void bind_or_die(int s, const struct addrinfo *ai, struct callbacks *cb)
{
while (ai) {
if (!bind(s, ai->ai_addr, ai->ai_addrlen))
return;
ai = ai->ai_next;
}
PLOG_FATAL(cb, "bind");
}
void *calloc_or_die(size_t nmemb, size_t size, struct callbacks *cb)
{
void *ptr = calloc(nmemb, size);
if (!ptr)
PLOG_FATAL(cb, "calloc");
return ptr;
}
void connect_or_die(int s, const struct addrinfo *ai, struct callbacks *cb)
{
for (;;) {
if (!connect(s, ai->ai_addr, ai->ai_addrlen))
return;
switch (errno) {
case EINPROGRESS: /* normal and limited to async sockets */
case EISCONN:
return;
case EALREADY:
case EINTR:
continue;
}
PLOG_FATAL(cb, "connect");
}
}
int epoll_create1_or_die(struct callbacks *cb)
{
int epfd = epoll_create1(0);
if (epfd == -1)
PLOG_FATAL(cb, "epoll_create1");
return epfd;
}
struct addrinfo *getaddrinfo_or_die(const char *host, const char *port,
const struct addrinfo *hints,
struct callbacks *cb)
{
struct addrinfo *ai;
int s = getaddrinfo(host, port, hints, &ai);
if (s)
LOG_FATAL(cb, "getaddrinfo: %s", gai_strerror(s));
return ai;
}
void listen_or_die(int s, int backlog, struct callbacks *cb)
{
if (listen(s, backlog))
PLOG_FATAL(cb, "listen");
}
void *malloc_or_die(size_t size, struct callbacks *cb)
{
void *ptr = malloc(size);
if (!ptr)
PLOG_FATAL(cb, "malloc");
return ptr;
}
void *realloc_or_die(void *ptr, size_t size, struct callbacks *cb)
{
void *new_ptr = realloc(ptr, size);
if (!new_ptr)
PLOG_FATAL(cb, "realloc");
return new_ptr;
}
int socket_or_die(int domain, int type, int protocol, struct callbacks *cb)
{
int s = socket(domain, type, protocol);
if (s == -1)
PLOG_FATAL(cb, "socket");
return s;
}