mdw@git.distorted.org.uk Git - disorder/blob - lib/syscalls.h

   1 /*
   2  * This file is part of DisOrder.
   3  * Copyright (C) 2004, 2005, 2007-2009, 2013 Richard Kettlewell
   4  *
   5  * This program is free software: you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation, either version 3 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17  */
  18 /** @file lib/syscalls.h
  19  * @brief Error-checking library call wrappers
  20  */
  21 #ifndef SYSCALLS_H
  22 #define SYSCALLS_H
  23
  24 /* various error-handling wrappers.  Not actually all system calls! */
  25
  26 struct sockaddr;
  27 struct sigaction;
  28 struct timezone;
  29
  30 #if HAVE_SYS_SOCKET_H
  31 # include <sys/socket.h>
  32 #endif
  33 #include <signal.h>
  34
  35 #if !_WIN32
  36 pid_t xfork(void);
  37 void xclose_guts(const char *, int, int);
  38 #define xclose(fd) xclose_guts(__FILE__, __LINE__, fd)
  39 void xdup2(int, int);
  40 void xpipe(int *);
  41 int xfcntl(int, int, long);
  42 void xsigprocmask(int how, const sigset_t *set, sigset_t *oldset);
  43 void xsigaction(int sig, const struct sigaction *sa, struct sigaction *oldsa);
  44 int xnice(int);
  45 void xgettime(clockid_t clk_id, struct timespec *tp);
  46 void xnanosleep(const struct timespec *req, struct timespec *rem);
  47 #endif
  48 void xlisten(SOCKET, int);
  49 void xshutdown(SOCKET, int);
  50 void xsetsockopt(SOCKET, int, int, const void *, socklen_t);
  51 SOCKET xsocket(int, int, int);
  52 void xconnect(SOCKET, const struct sockaddr *, socklen_t);
  53 int xprintf(const char *, ...)
  54   attribute((format (printf, 1, 2)));
  55 void xfclose(FILE *);
  56 void xgettimeofday(struct timeval *, struct timezone *);
  57 time_t xtime(time_t *when);
  58 /* the above all call @fatal@ if the system call fails */
  59
  60 void nonblock(int fd);
  61 void blocking(int fd);
  62 void cloexec(int fd);
  63 /* make @fd@ non-blocking/blocking/close-on-exec; call @fatal@ on error. */
  64
  65 int mustnotbeminus1(const char *what, int value);
  66 /* If @value@ is -1, report an error including @what@. */
  67
  68 int xstrtol(long *n, const char *s, char **ep, int base);
  69 int xstrtoll(long_long *n, const char *s, char **ep, int base);
  70 /* like strtol() but returns errno on error, 0 on success */
  71
  72 #endif /* SYSCALLS_H */
  73
  74 /*
  75 Local Variables:
  76 c-basic-offset:2
  77 comment-column:40
  78 End:
  79 */