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/* Definitions for managing subprocesses in GNU Make.
Copyright (C) 1992, 1993, 1996, 1999 Free Software Foundation, Inc.
This file is part of GNU Make.

GNU Make is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.

GNU Make is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with GNU Make; see the file COPYING.  If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.  */

#ifndef SEEN_JOB_H
#define SEEN_JOB_H

/* Structure describing a running or dead child process.  */

struct child
    struct child *next;       /* Link in the chain.  */

    struct file *file;        /* File being remade.  */

    char **environment;       /* Environment for commands.  */

    char **command_lines;     /* Array of variable-expanded cmd lines.  */
    unsigned int command_line;      /* Index into above.  */
    char *command_ptr;        /* Ptr into command_lines[command_line].  */

    pid_t pid;                /* Child process's ID number.  */
#ifdef VMS
    int efn;                  /* Completion event flag number */
    int cstatus;        /* Completion status */
    char *sh_batch_file;        /* Script file for shell commands */
    unsigned int remote:1;    /* Nonzero if executing remotely.  */

    unsigned int noerror:1;   /* Nonzero if commands contained a `-'.  */

    unsigned int good_stdin:1;      /* Nonzero if this child has a good stdin.  */
    unsigned int deleted:1;   /* Nonzero if targets have been deleted.  */

extern struct child *children;

extern void new_job PARAMS ((struct file *file));
extern void reap_children PARAMS ((int block, int err));
extern void start_waiting_jobs PARAMS ((void));

extern char **construct_command_argv PARAMS ((char *line, char **restp, struct file *file, char** batch_file));
#ifdef VMS
extern int child_execute_job PARAMS ((char *argv, struct child *child));
extern void child_execute_job PARAMS ((int stdin_fd, int stdout_fd, char **argv, char **envp));
#ifdef _AMIGA
extern void exec_command PARAMS ((char **argv));
extern void exec_command PARAMS ((char **argv, char **envp));

extern unsigned int job_slots_used;

extern void block_sigs PARAMS ((void));
#ifdef POSIX
extern void unblock_sigs PARAMS ((void));
extern int fatal_signal_mask;
#define     unblock_sigs()    sigsetmask (0)
#define     unblock_sigs()

#endif /* SEEN_JOB_H */

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