src/procmgmt/procmgmt.h

   1 /*
   2  * Copyright 2000, International Business Machines Corporation and others.
   3  * All Rights Reserved.
   4  *
   5  * This software has been released under the terms of the IBM Public
   6  * License.  For details, see the LICENSE file in the top-level source
   7  * directory or online at http://www.openafs.org/dl/license10.html
   8  */
   9
  10 #ifndef OPENAFS_PROCMGMT_H
  11 #define OPENAFS_PROCMGMT_H
  12
  13
  14 #ifdef AFS_NT40_ENV
  15 /* Process management definitions for Windows NT */
  16
  17 #include <process.h>
  18
  19
  20 /* -----------------  Processes  ---------------- */
  21
  22
  23 typedef int pid_t;              /* process id type */
  24
  25 /* Wait status macros -- status returned in standard Unix format */
  26
  27 #define WIFEXITED(wstat)     ((int)((wstat) & 0xFF) == 0)
  28 #define WIFSIGNALED(wstat)   ((int)((wstat) & 0xFF) != 0)
  29 #define WEXITSTATUS(wstat)   ((int)(((wstat) >> 8) & 0xFF))
  30 #define WTERMSIG(wstat)      ((int)((wstat) & 0xFF))
  31 #define WCOREDUMP(wstat)     ((int)0)
  32
  33 #define WEXITED_ENCODE(status)     ((int)(((status) & 0xFF) << 8))
  34 #define WSIGNALED_ENCODE(signo)    ((int)((signo) & 0xFF))
  35
  36 /* Wait option macros */
  37
  38 #define WNOHANG   0x01
  39
  40 /* Process related data declarations */
  41
  42 #ifndef PMGTEXPORT
  43 #define PMGTEXPORT __declspec(dllimport)
  44 #endif
  45
  46 #define spawnDatap pmgt_spawnData
  47 PMGTEXPORT extern void *pmgt_spawnData;
  48
  49 #define spawnDataLen pmgt_spawnDataLen
  50 PMGTEXPORT extern size_t pmgt_spawnDataLen;
  51
  52
  53 /* Process related function declarations */
  54
  55 #define PMGT_SPAWN_DETACHED_ENV_NAME  "TransarcAfsPmgtSpawnDetached"
  56
  57 #define spawnprocveb(spath, sargv, senvp, sdatap, sdatalen) \
  58     pmgt_ProcessSpawnVEB(spath, sargv, senvp, sdatap, sdatalen)
  59 #define spawnprocve(spath, sargv, senvp, estatus) \
  60     pmgt_ProcessSpawnVEB(spath, sargv, senvp, NULL, 0)
  61 #define spawnprocve_sig(spath, sargv, senvp, estatus, mask) \
  62     pmgt_ProcessSpawnVEB(spath, sargv, senvp, NULL, 0)
  63 #define spawnprocv(spath, sargv, estatus) \
  64     pmgt_ProcessSpawnVEB(spath, sargv, NULL, NULL, 0)
  65
  66 extern pid_t pmgt_ProcessSpawnVEB(const char *spath, char **sargv,
  67                                   char **senvp, void *sdatap,
  68                                   size_t sdatalen);
  69
  70
  71 #define waitpid(pid, statusP, options) \
  72     pmgt_ProcessWaitPid(pid, statusP, options)
  73 #define wait(statusP) \
  74     pmgt_ProcessWaitPid((pid_t)-1, statusP, 0)
  75
  76 extern pid_t pmgt_ProcessWaitPid(pid_t pid, int *statusP, int options);
  77
  78
  79
  80
  81
  82
  83 /* -----------------  Signals  ---------------- */
  84
  85
  86 /* Attempt to override Microsoft (MSVC) signal definitions */
  87 #ifndef _INC_SIGNAL
  88 #define _INC_SIGNAL
  89 #else
  90 #error "Windows requires custom signal definitions; do not include signal.h."
  91 #endif
  92
  93
  94 /* Supported signals
  95  *     Support is provided for a subset of the standard Unix signals.
  96  *     Note that Windows NT (via the MSVC runtime) will NOT generate signals
  97  *     in response to most HW faults or terminal activity; in particular,
  98  *     Windows NT will NOT generate SIGILL, SIGSEGV, SIGINT, or SIGTERM.
  99  */
 100
 101
 102 #define SIGHUP  1               /* hangup */
 103 #define SIGINT  2               /* interrupt */
 104 #define SIGQUIT 3               /* quit */
 105 #define SIGILL  4               /* illegal instruction */
 106 #define SIGABRT 6               /* abnormal termination triggered by abort() */
 107 #define SIGFPE  8               /* floating point exception */
 108 #define SIGKILL 9               /* kill */
 109 #define SIGSEGV 11              /* segmentation violation */
 110 #define SIGTERM 15              /* software termination signal from kill */
 111 #define SIGUSR1 16              /* user defined signal 1 */
 112 #define SIGUSR2 17              /* user defined signal 2 */
 113 #define SIGCLD  18              /* child status change - alias for compatability */
 114 #define SIGCHLD 18              /* child status change */
 115 #define SIGTSTP 24              /* user stop requested from tty */
 116
 117 #define NSIG 25                 /* max signal number + 1   (sig set macros presume <= 33) */
 118
 119
 120 /* Signal actions */
 121
 122 #define SIG_ERR   ((void (__cdecl *)(int))-1)   /* signal() error value */
 123 #define SIG_DFL   ((void (__cdecl *)(int))0)    /* default signal action */
 124 #define SIG_IGN   ((void (__cdecl *)(int))1)    /* ignore signal */
 125
 126
 127 /* Signal set type and set manipulation macros */
 128
 129 typedef unsigned int sigset_t;
 130
 131 #define sigsetbit(signo)  ((unsigned int)1 << (((signo) - 1) & (32 - 1)))
 132
 133 #define sigemptyset(setP)          ((*(setP) = 0) ? 0 : 0)
 134 #define sigfillset(setP)           ((*(setP) = ~(unsigned int)0) ? 0 : 0)
 135 #define sigaddset(setP, signo)     ((*(setP) |= sigsetbit(signo)) ? 0 : 0)
 136 #define sigdelset(setP, signo)     ((*(setP) &= ~sigsetbit(signo)) ? 0 : 0)
 137 #define sigismember(setP, signo)   ((*(setP) & sigsetbit(signo)) ? 1 : 0)
 138
 139
 140 /* Sigaction type and related macros */
 141
 142 struct sigaction {
 143     void (__cdecl * sa_handler) (int);
 144     sigset_t sa_mask;
 145     int sa_flags;
 146 };
 147
 148 #define SA_RESETHAND   0x00000001
 149
 150
 151 /* Signal related function declarations */
 152
 153 #define sigaction(signo, actP, oactP)  pmgt_SigactionSet(signo, actP, oactP)
 154 extern int pmgt_SigactionSet(int signo, const struct sigaction *actionP,
 155                              struct sigaction *old_actionP);
 156
 157 #define signal(signo, dispP)  pmgt_SignalSet(signo, dispP)
 158 extern void (__cdecl *
 159              pmgt_SignalSet(int signo, void (__cdecl * dispP) (int))) (int);
 160
 161 #define raise(signo)  pmgt_SignalRaiseLocal(signo)
 162 extern int pmgt_SignalRaiseLocal(int signo);
 163
 164 #define kill(pid, signo)  pmgt_SignalRaiseRemote(pid, signo)
 165 extern int pmgt_SignalRaiseRemote(pid_t pid, int signo);
 166
 167
 168
 169 #else
 170 /* Process management definitions for Unix */
 171
 172 #include <sys/types.h>
 173 #include <sys/wait.h>
 174
 175 #include <signal.h>
 176 #include <unistd.h>
 177
 178
 179 /* -----------------  Processes  ---------------- */
 180
 181 #define spawnprocve(spath, sargv, senvp, estatus) \
 182     pmgt_ProcessSpawnVE(spath, sargv, senvp, estatus, NULL)
 183 #define spawnprocve_sig(spath, sargv, senvp, estatus, mask) \
 184     pmgt_ProcessSpawnVE(spath, sargv, senvp, estatus, mask)
 185 #define spawnprocv(spath, sargv, estatus) \
 186     pmgt_ProcessSpawnVE(spath, sargv, NULL, estatus, NULL)
 187
 188 extern pid_t pmgt_ProcessSpawnVE(const char *spath, char **sargv,
 189                                  char **senvp, int estatus, sigset_t *mask);
 190
 191
 192 #endif /* AFS_NT40_ENV */
 193
 194 #endif /* OPENAFS_PROCMGMT_H */